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Observations for 2024 September 06


Was quite surprised to learn that Grand erupted shortly before dawn. Had expected (and planned) on it erupting several hours earlier. The interval was so long that I suspected a Rift eruption, but when I got out there, it was obvious that Rift had not erupted overnight.

So instead I spent some time taking videos in the Sawmill Group. Got to see heavy bursting from Spasmodic as it dropped, Oval Spring having good size bursting from the north (front) vent, multiple eruptions of Tardy, the end of a Sawmill eruption, and a Penta steamphase minor.

Missed the start of the last item, as I was set up to record Bulger and Old Tardy (which ended up doing little to nothing), but quickly moved the camera over to Penta. Once that was over, it seemed like activity in Bulger did pickup a little.

Sawmill Group_2024-Sep-06_0910
---------------
2024-Sep-06
09:10:37   Start Observations                    Other Event
09:10:59ie >>>Eruption : d=35m44s                    Sawmill
09:11:08ie >>>Eruption : d=09s                         Tardy
09:11:17   End Eruption                                Tardy
09:11:35   Low, North vent active                Oval Spring
09:12:22ie >>>Eruption                                 Tardy
09:14:21   Dropping, active                        Spasmodic
09:17:02   >>>Eruption                                 Tardy
09:18:00   >>>Eruption                                 Tardy
09:18:17   >>>Eruption                                 Tardy
09:18:44   >>>Eruption : d=01m59s                      Tardy
09:20:09   End Eruption                                Tardy
09:25:41   >>>Eruption                                 Tardy
09:27:20   >>>Eruption : d=01m37s                      Tardy
09:28:57   End Eruption                                Tardy
09:32:06   Splashes                                    Tardy
09:32:32   Frequent splashes                           Tardy
09:33:18   >>>Eruption : d=32s                         Tardy
09:34:23   Splashes                                    Tardy
09:35:53   >>>Eruption : d=01m23s                      Tardy
09:37:16   End Eruption                                Tardy
09:40:06   Splashes                                    Tardy
09:41:31   Frequent splashes                           Tardy
09:41:53   >>>Eruption : d=01m48s                      Tardy
09:43:41   End Eruption                                Tardy
09:45:44   Splashes                                    Tardy
09:46:43   End eruption                              Sawmill
09:48:00   >>>Eruption                                 Tardy
09:59:18   Below lobe level                     Belgian Pool
10:00:14   Splashes                                   Bulger
10:12:24   >>>Eruption : d=16m02s,min                  Penta
10:19:09   Splashes                                   Bulger
10:28:26   End eruption                                Penta
10:29:32   >>>Eruption : min                       Old Tardy
10:30:39   Heavy steam                                 Penta
10:33:17   >>>Eruption                           Oval Spring
                    Low pool, north vent
10:45:10   Splashes                                   Bulger
10:45:49   >>>Eruption                                 Daisy
10:47:52   Splashes                                   Bulger
10:59:08   Splashes                                   Bulger
11:01:03   Splashes                                   Bulger
11:06:04   >>>Eruption                               Sawmill
11:07:25   Start ovfl                                Sawmill
11:17:02   End Observations                      Other Event

After Sawmill restarted, I took a break, and got back in time to begin waiting for Uncertain. At first Uncertain was making lots of gurgling sounds, with an occasional visible splash. Then, quite quickly, Uncertain became quiet. That turned out to be due to it rising in the vent. We witnessed a couple of floods coming from the vent before one of them triggered the Uncertain eruption.

After that, it was a bit early, but still time to wait for Grand. I wasn't paying close attention when I realized that Grand's pool was full and having small waves at the six hour mark. Got the camera started in time to capture a couple of the strong boops. As expected, the pool level quickly dropped well before Turban finally erupted.

Three Turban eruption intervals later, we got a repeat of that performance. This time there were at least five boops, with several well over a meter high. Turban finally erupted just after the 25 minute mark.

So once again we had to wait three more Turban eruption intervals. This time the pool filled early, around the fifteen minute mark, but did start having wavelets until several minutes later. Again, there was some booping from Grand, but this time we finally got the One Burst Eruption, which lasted well over eleven minutes, with Vent & Turban quitting within a minute, and restarting within another six minutes.

2024-Sep-06:14:32:02 B3/D3/G1Q

 14:31:53	Boop	-0m08s
 14:32:02	B1	--- d=11m19s
 14:32:22	Vent Ovfl	0m19s
 14:32:39	Turban	0m36s
 14:35:19	Vent	3m16s
 14:43:21	P1	11m19s
 14:44:16	V&T Quit	12m13s
 14:49:58	V&T Restart	17m56s

				     	ΣD=11m19s
	* * * * *
 12:34:57			d=05m45s  B0 Boop: 12:30:45	
 12:52:54	Int: 17m57s	d=04m28s  B1	
 13:13:24	Int: 20m30s	d=04m10s  B2	
 13:38:38	Int: 25m14s	d=04m35s  B3/D0 Boop: 13:35:05	
 13:55:40	Int: 17m02s	d=04m06s  B3/D1	
 14:12:55	Int: 17m15s	d=03m39s  B3/D2
		      Grand: 19m06s

The next Grand eruption would be in the dark. Unlike the last few intervals, however, the wait for this One Burst Grand was short, only 6-1/2 hours. The Turban eruption interval was not quite long enough to be a delay. Once again the eruption started with several boops. We heard the first one in the dark, 15 seconds before the eruption.

2024-Sep-06:20:59:27 G1C

 20:59:12	Boop	-0m15s
 20:59:27	B1	--- d=10m25s
 21:03:03	Vent	3m36s
 21:09:52	P1	10m25s
Vent & Turban continue

				     	ΣD=10m25s
	* * * * *
 20:35:21			d=04m42s 	
		      Grand: 24m06s

Posted on

Observations for 2024 September 05


Did another half-hour video of Sawmill erupting, with Tardy frequently active. About a minute after I stopped recording, as I walked past Belgian Pool, Sawmill quit. Which was something I would've liked to have recorded.

Sawmill Group_2024-Sep-05_0738
---------------
2024-Sep-05
07:39:17ie >>>Eruption                               Sawmill
07:40:00   >>>Eruption : min                           Tardy
07:40:47   Medium level, active                    Spasmodic
07:41:33ns >>>Eruption : d=01m30s                      Tardy
07:43:03   End Eruption                                Tardy
07:43:32   Below lobe level                     Belgian Pool
07:53:11   >>>Eruption : d=02m39s                      Tardy
07:55:50   End Eruption                                Tardy
08:01:31   >>>Eruption : d=38s                         Tardy
08:02:09   End Eruption                                Tardy
08:02:49   >>>Eruption : d=29s                         Tardy
08:03:54   >>>Eruption : d=01m50s                      Tardy
08:05:44   End Eruption                                Tardy
08:09:26   Splashes                                    Tardy
08:10:27   Splashes                                    Tardy
08:10:52   >>>Eruption : d=05s                         Tardy
08:11:28   >>>Eruption : d=33s                         Tardy
08:13:40   >>>Eruption : d=16s                         Tardy
08:14:26   Splashes                                    Tardy
08:15:06   Splashes                                    Tardy
08:15:26   >>>Eruption : d=42s                         Tardy
08:17:14   Splashes                                    Tardy
08:18:15   Splashes                                    Tardy
08:18:43   >>>Eruption : d=07s                         Tardy
08:19:04   End Observations                      Other Event

The wait for the One Burst Grand Eruption was three hours of Turban intervals without any Turban Delay interval. Unlike so many one burst eruptions recently, this one lasted nearly eleven minutes.

2024-Sep-05:11:34:03 G1Q

 11:33:53	Vent Ovfl	-0m10s
 11:34:01	Boop	-0m01s
 11:34:03	B1	--- d=10m59s
 11:34:05	Turban	0m02s
 11:36:42	Vent	2m38s
 11:43:39	FP	9m36s
 11:45:03	P1	10m59s
 11:45:57	V&T Quit	11m53s
 11:51:32	V&T Restart	17m29s

				     	ΣD=10m59s
	* * * * *
 08:30:32			d=05m04s 	
 08:48:41	Int: 18m09s	d=04m16s 	
 09:08:47	Int: 20m06s	d=04m29s 
 09:27:27	Int: 18m39s	d=03m49s 
 09:46:23	Int: 18m55s	d=03m29s 
 10:03:23	Int: 17m00s	d=03m54s 
 10:22:18	Int: 18m55s	d=04m07s 
 10:41:10	Int: 18m51s	d=03m52s 
 10:58:53	Int: 17m43s	d=03m32s 
 11:16:03	Int: 17m09s	d=03m51s 
		      Grand: 18m00s

Did not participate in the long wait for Beehive to erupt, but did get out for the 25 minute long indicator. Once again, it was a mostly windless eruption, although there was an attempt at the breeze moving the spray toward the boardwalk.

In the evening, Grand was set up again for a sunset eruption, but unfortunately there was a real Turban Delay interval of nearly 33 minutes. The One Burst Grand didn't occur until six more intervals had passed, but it was still light enough to see details in the pool. There was a sharp false pause just short of the eight minute mark, and the whole eruption lasted just nine minutes. There was no attempt at a second burst, but at least Vent & Turban continued.

2024-Sep-05:20:12:56 D6/T1C

 20:12:27	Turban	-0m29s
 20:12:43	Vent Ovfl	-0m13s
 20:12:49	Boop	-0m07s
 20:12:56	B1	--- d=09m00s
 20:15:27	Vent	2m31s
 20:20:47	FP	7m51s
 20:21:56	P1	9m00s
Vent & Turban continue

				     	ΣD=09m00s
	* * * * *
 17:52:29			d=04m32s 	
 18:25:11	Int: 32m42s	d=04m32s  D0	
 18:42:18	Int: 17m07s	d=04m26s  D1	
 19:02:15	Int: 19m57s	d=03m30s  D2	
 19:18:23	Int: 16m08s	d=03m56s  D3	
 19:37:22	Int: 18m59s	d=03m49s  D4	
 19:55:57	Int: 18m35s	d=03m53s  D5	
		     Turban: 16m30s

Posted on

Observations for 2024 September 04


It appears that overnight there was at least one long Grand eruption interval, since it was a double interval of sixteen hours. Otherwise the One Burst Grand was the common variety where it lasts less than 10-1/2 minutes. Vent & Turban seemed like they tried to quit, but then the activity picked up considerably, with Vent roaring as if something else could happen.

2024-Sep-04:11:03:11 T1C

 11:03:03	Vent Ovfl	-0m08s
 11:03:06	Boop	-0m05s
 11:03:10	Turban	-0m01s
 11:03:11	B1	--- d=10m17s
 11:06:03	Vent	2m52s
 11:13:28	P1	10m17s
Vent & Turban continue

				     	ΣD=10m17s
	* * * * *
 10:05:09			d=04m26s 	
 10:23:17	Int: 18m08s	d=04m02s 	
 10:43:31	Int: 20m14s	d=04m17s 	
		     Turban: 19m39s

Spent some time in the Sawmill Group recording videos and doing some field testing. Nothing much interesting happened.

Sawmill Group 3_2024-Sep-04_1159
---------------
2024-Sep-04
11:59:40   Quiet, near ovfl                          Sawmill
12:06:53ie >>>Eruption                                 Daisy
12:16:15   Peak, dropping                            Sawmill
12:16:49   Quiet, dropping                         Spasmodic
12:18:10   Splashes                                   Bulger
12:27:17   Water not visible                         Sawmill
12:37:52   >>>Eruption : d=41s,min                    Bulger
12:52:40   >>>Eruption : min                          Bulger
12:54:44   End Observations                      Other Event

In the evening there was another long series of Turban eruptions without there being a Turban Delay interval. During that time we saw a couple of Daisy eruptions and a nice tall and wide Oblong eruption. Two Turban intervals before the Grand eruption, we had what appeared to be an attempt at an eruption. That eruption was also short and weak. The next Turban interval after that was one where Grand had little to no overflow.

The Grand eruption started at about the last possible moment. It was two bursts, with the second burst starting with Grand's pool in the shadows. A faint rainbow was visible near the top of the water column, which shows how low the sun was. That burst also lasted almost 2-1/2 minutes, with much of that time taken up with Big Sawmill mode.

2024-Sep-04:19:16:01 T2*Q

 19:15:31	Vent Ovfl	-0m30s
 19:15:35	Turban	-0m26s
 19:15:54	Boop	-0m07s
 19:16:01	B1	--- d=08m12s
 19:18:31	Vent	2m29s
 19:24:14	P1	8m12s d=37s
 19:24:52	B2	8m50s d=02m24s
 19:27:17	P2	11m15s
 19:28:12	V&T Quit	12m10s

				     ΣB=10m37s	ΣD=11m15s
	* * * * *
 16:12:24			d=03m23s 	
 16:29:42	Int: 17m18s	d=04m11s 	
 16:49:41	Int: 19m59s	d=04m22s 	
 17:09:49	Int: 20m08s	d=04m06s 	
 17:28:50	Int: 19m01s	d=04m11s 	
 17:47:29	Int: 18m39s	d=03m57s 	
 18:06:59	Int: 19m30s	d=03m52s 	
 18:25:21	Int: 18m22s	d=04m09s 
 18:42:44	Int: 17m22s	d=03m16s 
 18:58:05	Int: 15m20s	d=02m58s 
		     Turban: 17m30s

Posted on

Observations for 2024 September 03


For the morning Grand, once again had a short wait for the One Burst Grand eruption. West Triplet did overflow for a while after the eruption, but this time there wasn't any convection or thumping.

2024-Sep-03:10:07:45 G1Q

 10:07:39	Boop	-0m05s
 10:07:45	B1	--- d=10m06s
 10:09:13	Turban	1m28s
 10:11:26	Vent	3m41s
 10:17:52	P1	10m06s
 10:19:24	V&T Quit	11m38s
 10:38:29	V&T Restart	30m44s

				     	ΣD=10m06s
	* * * * *
 09:27:51			d=04m12s 	
 09:45:11	Int: 17m20s	d=04m35s 	
		      Grand: 22m34s

Going out for the next Grand eruption, as I passed Crested Pool I noticed that it seemed the ospreys were making a bit of noise. Then I saw the reason-- there was an eagle flying low headed upstream.

The wait at Grand was a long one. As we approached the eight hour mark, Grand finally looked like it might erupt, only to suddenly drop and then sit for long enough for it to be a Turban Delay interval. As expected, Grand finally had it's One Burst Eruption four Turban eruption intervals later. After the eruption, I noticed that the runoff from West Triplet was wet, indicating that West Triplet probably had a decent overflow during the Grand eruption.

2024-Sep-03:19:02:00 D4/T1Q

 19:01:17	Turban	-0m43s
 19:01:23	Vent Ovfl	-0m37s
 19:02:00	B1	--- d=10m19s
 19:04:24	Vent	2m23s
 19:12:19	P1	10m19s
 19:13:15	V&T Quit	11m15s

				     	ΣD=10m19s
	* * * * *
 16:08:31			d=03m35s 	
 16:28:23	Int: 19m52s	d=03m52s 	
 16:47:09	Int: 18m46s	d=03m47s 	
 17:06:18	Int: 19m09s	d=03m33s 	
 17:25:07	Int: 18m49s	d=03m42s 	
 17:53:27	Int: 28m20s	d=04m42s  D0	
 18:11:04	Int: 17m37s	d=03m24s  D1
 18:28:13	Int: 17m09s	d=03m25s  D2
 18:45:48	Int: 17m35s	d=03m26s  D3
		     Turban: 15m28s

Before the Turban Delay, Beehive's Indicator was called over the radio. Not only did this cause a mass evacuation of most of the gazers who had been waiting, but it appeared that many of the visitors followed them, as the benches seemed empty.

After Grand erupted the Sawmill Group was in the proper state for an Uncertain eruption. Uncertain was noisy, but there wasn't much splashing. After waiting about half an hour, suddenly Uncertain's vent filled with water, and with 15 or so seconds, the eruption started. As the Uncertain eruption was ending, Sawmill started to erupt. That eruption lasted for about 50 seconds, and then all was quiet.


Posted on

Observations for 2024 September 02


Once again out at dawn in case Grand ignored the Rift eruption and had another shorter interval. There were three bison grazing on both sides of the bike trail just across from the store as I rode out. It was warm enough that there wasn't any ice on the walkways, and the sky had cleared enough that the sunrise wasn't brownish-orange. Didn't have to wait long for the Grand erupion. While the first burst was moderatly long, the second wasn't totally unexpected.

2024-Sep-02:07:39:11 T2Q

 07:38:57	Turban	-0m14s
 07:39:11	B1	--- d=08m55s
 07:41:51	Vent	2m39s
 07:48:07	P1	8m55s d=39s
 07:48:46	B2	9m35s d=32s
 07:49:19	P2	10m08s
 07:50:07	V&T Quit	10m55s

				     ΣB=09m28s	ΣD=10m08s
	* * * * *
 06:24:15ie			d≥02m06s 	
 06:42:53	Int: 18m38s	d=04m00s 
 07:02:46	Int: 19m52s	d=03m51s 
 07:20:20	Int: 17m34s	d=03m41s 
		     Turban: 18m36s

Spent the rest of the morning at Artemisia, which showed no signs of trying to erupt.

The afternoon Grand also had a short wait. Despite the One Burst Grand lasting over ten minutes, the pool refilled enough to be seen sloshing about for about fifteen seconds before finally draining.

2024-Sep-02:14:08:42 G1Q

 14:08:42	B1	--- d=10m39s
 14:08:43	Vent Ovfl	0m01s
 14:09:00	Turban	0m17s
 14:11:49	Vent	3m06s
 14:19:21	P1	10m39s
 14:20:28	V&T Quit	11m46s

				     	ΣD=10m39s
	* * * * *
 13:29:03			d=04m13s 	
 13:49:18	Int: 20m15s	d=04m01s 
		      Grand: 19m23s

It was not quite dark when I pulled up to the bike rack and Castle started to erupt. Unfortunately, it was a six minute minor.

So went over to Grand where I noticed that West Triplet had a wet runoff channel. Then waited one Turban interval for the Grand eruption. Turban started the eruption, but with the bright lights deployed, we could easily see the strong waves and boops. It had two bursts, and lasted just under ten minutes, with no attempt at a third burst. It's interesting how these short two burst eruptions cause Vent & Turban to quit.

2024-Sep-02:20:47:06 T2Q

 20:46:19	Turban	-0m47s
 20:47:01	Boop	-0m05s
 20:47:06	B1	--- d=08m19s
 20:49:40	Vent	2m34s
 20:55:25	P1	8m19s d=43s
 20:56:08	B2	9m02s d=56s
 20:57:04	P2	9m58s
 20:58:04	V&T Quit	10m58s

				     ΣB=09m15s	ΣD=09m58s
	* * * * *
 20:27:15			d=04m27s 	
		     Turban: 19m04s

Posted on

Observations for 2024 September 01


Got out early because there were no reports of any activity overnight. Arrived at Grand near the six hour mark, and the pool was full, indicating it had been more than a few hours since the previous eruption.

Caught a Castile minor eruption, then two Turban eruption intervals later got the One Burst Grand eruption. When I arrived at Grand, the boardwalks were clear, but were slippery with ice by the time Grand erupted.

2024-Sep-01:07:16:22 G1Q

 07:16:22	B1	--- d=10m51s
 07:16:41	Turban	0m19s
 07:19:31	Vent	3m08s
 07:27:13	P1	10m51s
 07:28:09	V&T Quit	11m47s

				     	ΣD=10m51s
	* * * * *
 06:36:32			d=05m23s 
 06:54:59	Int: 18m26s	d=04m24s 
		      Grand: 21m22s

Then it was time to revisit Artemisia to look for a part from my camera tripod that was last seen after yesterday's eruption. (I found it.) Also took the opportunity to record some video of East Sentinal boiling heavily.

By the time I arrived back in the cabin, the start of Beehive's Indicator was announced over the radios. So went out for a nice eruption with calm winds and a double rainbow.

Early afternoon I arrived at Grand to what was probably a Turban Delay interval. I didn't see enough of that interval to be sure, but all the other indications (long Turban eruption, no overflow from Grand on the next Turban eruption) were there. The Grand eruption may then have been the fourth after a Turban Delay. Turned out to be the first observed two burst eruption since the three burst eruption. The duration was less than ten minutes, and Grand made no attempt to have a third burst.

2024-Sep-01:14:36:14 G2C

 14:36:14	B1	--- d=08m36s
 14:36:56	Turban	0m42s
 14:37:59	Vent Ovfl	1m45s
 14:39:34	Vent	3m20s
 14:44:50	P1	8m36s d=19s
 14:45:10	B2	8m56s d=46s
 14:45:56	P2	9m42s
Vent & Turban continue

				     ΣB=09m23s	ΣD=09m42s
	* * * * *
 13:19:12			d=05m43s 	
 13:37:17	Int: 18m05s	d=04m17s 	
 13:57:06	Int: 19m49s	d=04m15s 	
 14:16:51	Int: 19m45s	d=03m40s 	
		      Grand: 19m23s

With Rift erupting, decided there was no point in going out for the next Grand eruption early. I finally arrived at about the eight hour mark, just after the end of the Rift eruption. The Turban intervals and durations were both short. Ten minutes before midnight, Grand suddenly erupted. The eruption was over before midnight. It appeared that there was no attempt at refilling and having a third burst.

2024-Sep-01:23:50:05 G2C

 23:50:05	B1	--- d=08m00s
 23:50:16	Turban	0m10s
 23:52:46	Vent	2m40s
 23:58:05	P1	8m00s d=43s
 23:58:49	B2	8m43s d=38s
 23:59:27	P2	9m21s
Vent & Turban continue

				     ΣB=08m38s	ΣD=09m21s
	* * * * *
 22:42:05			d=03m07s 	
 22:58:36	Int: 16m31s	d=03m30s 
 23:16:59	Int: 18m22s	d=03m32s 
 23:34:26	Int: 17m27s	d=03m31s 
		      Grand: 15m39s

On the way out to Grand, in the trees across from the signs near the store, was a bison. I didn't see it until I passed it on my bike. The bison never looked up, as far as I could tell.


Posted on

Observations for 2024 August 31


Figured the double Grand eruption interval would put the eruption well into the morning, so didn't head out early. A report of Grand not overflowing with a Turban eruption helped narrow down the time, too.

After 45 minutes, we got a long Turban Delay interval, which fixed the prediction quite a bit. The One Burst Grand eruption was four Turban eruption intervals later. The duration was a disappointing 9-1/3 minutes, with Grand making no attempt at a second burst.

2024-Aug-31:10:41:48 D4/T1C

 10:41:11	Turban	-0m37s
 10:41:17	Vent Ovfl	-0m30s
 10:41:42	Boop	-0m05s
 10:41:48	B1	--- d=09m19s
 10:44:25	Vent	2m36s
 10:51:08	P1	9m19s
Vent & Turban continue

				     	ΣD=09m19s
	* * * * *
 08:50:43			d=04m17s 	
 09:27:37	Int: 36m54s	d=05m36s  D0	
 09:46:22	Int: 18m45s	d=04m38s  D1	
 10:05:37	Int: 19m15s	d=04m11s  D2	
 10:22:34	Int: 16m57s	d=03m35s  D3	
		     Turban: 18m37s

Afterwards it was pointed out that an Artemisia eruption hadn't been seen since yesterday. It being a nice warm day with only a slight breeze, I decided that here was the opportunity to make a video of an eruption. Only had to wait about 1-1/2 hours, and suddenly heard and felt some thumps. The wind was away for most of the eruption, so had an excellent view.

Then on the way back, just as I approached the Lodge, came the call that Beehive's Indicator was starting. So went on over for that eruption. The wind was still a bit variable, and I had to get out the umbrella even though I thought I was in the safe zone at the eruption start.

Finally got a late evening eruption of Grand. No Turban Delay intervals, and the interval was only about 7-1/2 hours. The One Burst Grand eruption lasted just over ten minutes, and once again, there was no attempt at a second burst.

2024-Aug-31:18:13:16 G1C

 18:13:16	B1	--- d=10m07s
 18:14:07	Turban	0m51s
 18:14:17	Vent Ovfl	1m01s
 18:16:40	Vent	3m24s
 18:23:23	P1	10m07s
Vent & Turban continue

				     	ΣD=10m07s
	* * * * *
 16:42:37			
 17:01:35	Int: 18m58s	d=04m00s 	
 17:19:16	Int: 17m41s	d=03m51s 	
 17:37:30	Int: 18m14s	d=03m35s 	
 17:53:47	Int: 16m17s	d=03m51s 	
		      Grand: 19m29s

While leaving, noticed that Spasmodic was just starting overflow. Uncertain wasn't making much noise, but Sawmill was high. A few minutes later Sawmill started. Penta, meanwhile, was showing water splashing in the Top and Bottom Vents. This activity continued for about 1/2 hour, during which time Spasmodic dropped below overflow. Penta was still splashing around as I left.

Coming back from dinner in the Bear Pit, I was riding my bike when I encountered an animal just after I entered the cabin area. At first I thought it was a small coyote, but when I shined a light on it, it turned out to be a large fox. I ran past me and disappeared between some of the cabins nearer the Lodge. Now, if only it would harvest a few of the squirrels that insist upon coming in the cabin when the door is open.


Posted on

Observations for 2024 August 30


Got up at dawn expecting to confirm that Grand had erupted recently, and that was the case. Based on the empty vents and lack of activity, I put the eruption around 05:00. I also noticed that Castle was having a deep, rumbling steam phase, also indicating that there had been a major eruption much earlier. Sawmill was also in eruption, but Spasmodic had a wet runoff channel, and looked it was near overflow again, but I didn't stay to see if that would happen.

The wait for the midday Grand eruption was relatively short. Saw Turban in eruption, and the next eruption was about 33 minutes later, so definitely a Turban Delay interval. Shortly after, a bison wandered across Grand's runoff channels, headed toward Economic. The One Burst Grand eruption came four Turban eruption intervals later.

2024-Aug-30:12:39:31 D4/G1C

 12:39:29	Boop	-0m02s
 12:39:31	B1	--- d=10m08s
 12:40:22	Turban	0m51s
 12:41:22	Vent Ovfl	1m51s
 12:43:05	Vent	3m34s
 12:49:39	P1	10m08s
Vent & Turban continue

				     	ΣD=10m08s
	* * * * *
 11:24:56			d=05m20s  D0	
 11:43:29	Int: 18m33s	d=04m08s  D1	
 12:02:31	Int: 19m02s	d=04m02s  D2	
 12:21:03	Int: 18m32s	d=03m54s  D3	
		      Grand: 18m28s

Afterwards, noticed that Uncertain was having occasional splashes while Sawmill was low. The latter slowly rose over the next half hour, and the splashing in Uncertain decreased, until Sawmill finally did erupt.

Once again, arrived to a Turban Delay Interval. This time saw the preceeding eruption from the bike rack, and there was a small boop that resulted in and immediate drop in Grand's pool level. On the third Turban eruption there was strong overflow, and the subsequent Turban eruption had no overflow, but it lasted far too short to be a true Delay. Then on the fifth interval, Grand had another Turban Delay, just over the limit. The One Burst Grand eruption was just visible in the twilight. Toward the end of the eruption, there were several slowdowns that behaved like Grand was trying to pause.

2024-Aug-30:20:34:29 D5/D0/G1Q

 20:34:24	Boop	-0m05s
 20:34:29	B1	--- d=10m00s
 20:35:13	Turban	0m44s
 20:37:37	Vent	3m08s
 20:42:59	FP	8m30s
 20:44:00	FP	9m31s
 20:44:29	P1	10m00s
 20:46:08	V&T Quit	11m39s

				     	ΣD=10m00s
	* * * * *
 19:00:18			d=04m16s  D0 Boop: 18:56:13	
 19:16:22	Int: 16m04s	d=04m29s  D1	
 19:34:31	Int: 18m09s	d=03m56s  D2	
 19:53:45	Int: 19m14s	d=03m15s  D3	
 20:09:21	Int: 15m36s	d=03m50s  D4	
		      Grand: 25m08s

Posted on

Observations for 2024 August 29


Another day of Grand erupting in the morning at about the same time I my alarm went off so I could head out to see an eruption. Then again, correlation isn't always causation.

And Beehive erupted a few hours later. Once again, it was calm until shortly before the eruption when the wind started shifting about. Had to use the umbrella.

Before the next Grand eruption Uncertain looked promising, with Sawmill low, but slowly rising. Then Sawmill had two bursts, as if an eruption was starting, neither of which got much higher than the crater rim. That seemed to kill any chance of Uncertain, and the acual stort of Sawmill a few minutes later meant it was time to head over to Grand.

Also had to use the umbrella at Grand. After another series of non-descript Turban eruptions and intervals, Grand had a One Burst Eruption in what seemed like calm conditions. So much so that the people down by West Triplet and Rift got wet. Then the wind started swirling around, and the benches at the main runoff channel got soaked too. Then back to the south.

2024-Aug-29:14:08:20 G1C

 14:08:16	Boop	-0m04s
 14:08:20	B1	--- d=09m41s
 14:08:23	Vent Ovfl	0m03s
 14:08:37	Turban	0m16s
 14:11:19	Vent	2m59s
 14:18:02	P1	9m41s
Vent & Turban continue

				     	ΣD=09m41s
	* * * * *
 12:18:16			
 12:37:05	Int: 18m49s	d=03m52s 	
 12:55:36	Int: 18m31s	d=03m49s 	
 13:15:00	Int: 19m24s	d=03m38s 	
 13:32:59	Int: 17m59s	d=03m34s 	
 13:50:23	Int: 17m24s	d=03m21s 
		      Grand: 17m56s

The next Grand wait started at sunset. For once the interval was not atrocious, and the conditions were much better than last night. The One Burst Grand eruption was well illuminated, and the rain fell in the usual location to the northwest.

2024-Aug-29:21:35:57 G1C

 21:35:57	B1	--- d=10m17s
 21:36:51	Turban	0m54s
 21:39:33	Vent	3m36s
 21:46:15	P1	10m17s
Vent & Turban continue

				     	ΣD=10m17s
	* * * * *
 20:00:26			d=04m01s 	
 20:19:28	Int: 19m02s	d=04m13s 	
 20:39:57	Int: 20m29s	d=03m48s 	
 20:57:50	Int: 17m53s	d=04m08s 	
 21:15:04	Int: 17m14s	d=03m40s 	
		      Grand: 20m53s

Posted on

Observations for 2024 August 28


It was a windy, cool morning. The temperature was only 50F, but the wind made up for it. The wind also blew the water column from Beehive right at most of the railing.

Once again, just missed a Grand eruption at dawn. I was a bit surprised that there would be two short intervals following yesterday's long wait. The wait for the mid-day Grand eruption wasn't so bad, just under 7-1/2 hours.

That eruption started out fairly normal, but with a lot happening in a short period of time. From Vent Overflow to Boops to Turban Start to Grand Start took twelve seconds. That first burst lasted only 7m18s, which either meant we got to see the shorted Grand in years, or were going to get a second burst. That second burst lasted exactly 75 seconds, just enough to qualify for a "*" marker. The last 30 seconds consisted of Grand trying to stop, but instead boiling up in Big Sawmill Mode. With the total duration at that point under nine minutes, again not surprised when we got a third burst. There was no attempt at a fourth, and Vent & Turban shut off within half a minute.

While waiting for Grand, I noticed a small sput to the south/right of Sput D. At first I thought it was activity from Sputnik, but after getting closer, determined that it was Sput G, which I first noticed about this time last year.

2024-Aug-28:12:58:10 T3*Q

 12:57:58	Vent Ovfl	-0m11s
 12:58:03	Boop	-0m07s
 12:58:07	Turban	-0m02s
 12:58:10	B1	--- d=07m17s
 13:01:02	Vent	2m51s
 13:05:28	P1	7m17s d=23s
 13:05:51	B2	7m40s d=01m15s
 13:07:06	P2	8m56s d=37s
 13:07:44	B3	9m33s d=46s
 13:08:30	P3	10m20s
 13:09:08	V&T Quit	10m57s
 13:27:38	V&T Restart	29m27s

				     ΣB=09m19s	ΣD=10m20s
	* * * * *
 11:48:24			d=04m26s 	
 12:06:15	Int: 17m51s	d=03m59s 	
 12:24:18	Int: 18m03s	d=03m36s 	
 12:40:27	Int: 16m09s	d=03m17s 	
		     Turban: 17m40s

After Grand I noticed that West Triplet was full. About nine minutes after Vent & Turban quit it started to overflow. After about two minutes, with water pouring out, thumps started, and collapsing bubbles could be seen down in the vent. This lasted for about a minute and a half, with overflow stopping shortly after.


Posted on

Observations for 2024 August 27


Woke up to find that Grand had erupted about a half hour earlier. Not too disappointed, as it was cold and foggy out even after sunrise. Then we got the morning Beehive Indicator call. Went out with the intention of getting a video. The fog pretty much lifted during the wait for Beehive.

Little Squirt was in eruption, so after Beehive's eruption I got a few minutes of it. During that time it slowed down and almost quit. Since it was calm and Geyser Hill was empty, I stayed on to get about a half hour of Anemone erupting. During that time Little Squirt finally did quit. As for Anemone, I got some short South eruptions, and a long one, as well as several North eruptions. It was interesting how North Anemone would wait until noisy people were nearby before finally erupting.

Back in the cabin, I heard over the NPS radio that the Great Fountain prediction was for 11:15, but it was in overflow. This was around 08:45. I guess that this person didn't understand that a prediction based on overflow superseded the one based on the previous eruption. In any case, made the immediate decision to head out and try to see Great Fountain. It was my first visit to the Lower Basin this trip.

We arrived and had maybe a five minute wait. The first series had several nice bursts, which I got on video, so it was a slightly better than Adequate Fountain. Then went over to Fountain Paint Pots on the off chance that Fountain might also erupt. After an hour, we gave up and returned. Fountain didn't erupt until several hours later.

About an hour after the morning Grand eruption, Rift was reported to be in eruption. Went out to Grand at about the 6-1/2 hour mark, and Rift was still in eruption. We just missed a Turban Delay Interval, and proceeded to wait several hours until Grand finally had its One Burst Eruption. Toward the end of that time, Turban was having eruption durations less than three minutes long, and intervals under 16 minutes long. It also had a pseudo-delay, where the Turban interval suddenly jumped by about six minutes, and was followed by a Turban interval with no overflow. During the wait we also saw a nice Oblong eruption, one much larger than the ones I've seen earlier this trip.

2024-Aug-27:16:40:36 T1C

 16:39:45	Turban	-0m51s
 16:39:59	Vent Ovfl	-0m37s
 16:40:29	Boop	-0m07s
 16:40:36	B1	--- d=10m29s
 16:43:05	Vent	2m29s
 16:51:05	P1	10m29s
Vent & Turban continue

				     	ΣD=10m29s
	* * * * *
 13:22:57			d=03m35s 	
 13:40:24	Int: 17m27s	d=03m19s 	
 13:58:35	Int: 18m11s	d=03m29s 	
 14:18:48	Int: 20m13s	d=03m49s 	
 14:37:27	Int: 18m39s	d=03m42s 	
 14:55:34	Int: 18m07s	d=03m06s 	
 15:11:44	Int: 16m10s	d=03m10s 	
 15:28:24	Int: 16m40s	d=02m54s 	
 15:44:19	Int: 15m55s	d=02m57s 	
 16:06:31	Int: 22m12s	d=03m30s 	
 16:23:23	Int: 16m52s	d=03m10s 	
		     Turban: 16m22s

Posted on

Observations for 2024 August 26


It rained overnight, so not going out for the middle of the night Grand eruption was the proper decision. Woke up around the 14 hour mark, so a good time to see what was going on. It was still heavy overcast, and rain seemed likely. As it turned out, I got there in time for a Turban Delay interval. Rumor has it that the NPS recorded an eruption time of around 02:00, so that meant it was the early Delay interval.

For the third Turban interval later, there was again heavy overflow that looked like it was leading up to a Turban Delay. The expected rain never materialized, it was mostly clear and warming. Grand had an explosive start, nicely backlit by the sun. The total duration of the two burst eruption was just over ten minutes, and Vent & Turban quit suddenly, as if the eruption had been a lot longer. It was hard to tell, because the runoff was wet by the rains, but it appears West Triplet never came close to overflowing.

2024-Aug-26:08:37:32 D3/D0/G2Q

 08:37:32	B1	--- d=08m49s
 08:38:20	Turban	0m48s
 08:40:40	Vent	3m08s
 08:46:22	P1	8m49s d=39s
 08:47:02	B2	9m29s d=31s
 08:47:34	P2	10m01s
 08:48:20	V&T Quit	10m47s
 08:58:23	V&T Restart	20m50s

				     ΣB=09m21s	ΣD=10m01s
	* * * * *
 07:33:48			d=05m30s  D0	
 07:52:10	Int: 18m22s	d=04m21s  D1	
 08:11:13	Int: 19m03s	d=04m24s  D2	
		      Grand: 26m19s

Spent some time in the Sawmill Group field testing an update to my iPhone app. Not much happened during that time.

Sawmill Test_2024-Aug-26_1041
---------------
2024-Aug-26
10:41      In eruption                               Sawmill
10:47:55   >>>Eruption : d=03m49s                      Tardy
11:14:07   >>>Eruption : d=02m38s                      Tardy
11:16:45   End eruption                                Tardy
11:17:04   End eruption                              Sawmill
11:23:13   Splashing                                  Bulger
11:33:28   >>>Eruption : min                          Bulger
11:49:48   End Observations                      Other Event

Later it was again time for Grand. Castle erupted just before I left the cabin, and was going into a nice steam phase by the time I got out there. The wait for the One Burst Grand was short, as was the eruption itself.

2024-Aug-26:15:02:43 D0/T1C

 15:01:50	Turban	-0m53s
 15:02:43	B1	--- d=08m43s
 15:04:27	Vent Ovfl	1m44s
 15:05:22	Vent	2m39s
 15:11:26	P1	8m43s
Vent & Turban continue

				     	ΣD=08m43s
	* * * * *
 14:35:17			d=04m12s 	
		     Turban: 26m33s

After sunset it was cold and a bit windy. Arrived at Grand at the six hour mark with the expectation that the string of short intervals wouldn't last. The interval for the next One Burst Grand eruption was just over eight hours, and the duration was under ten minutes.

2024-Aug-26:23:03:15 G1C

 23:03:15	B1	--- d=09m44s
 23:12:59	P1	9m44s
Vent & Turban continue

				     	ΣD=09m44s
	* * * * *
 21:15:23			d=04m12s 	
 21:34:11	Int: 18m48s	d=03m21s 	
 21:50:25	Int: 16m14s	d=03m38s 	
 22:08:26	Int: 18m01s	d=04m01s 	
 22:28:04	Int: 19m38s	d=03m45s 	
 22:45:46	Int: 17m42s	d=03m36s 	
		      Grand: 17m29s

Posted on

Observations for 2024 August 25


Grand was not observed during the night, and at twelve hours since the last known eruption, it was time to head back. Once again, I was passing Sawmill when the eruption started. When the first burst ended at less than eight minutes, I was assuming at least another burst. And there was just that one burst, with the total eruption duration just over nine minutes.

2024-Aug-25:08:29:32 2C

 08:29:27	B1	--- d=07m42s
 08:31:48	Vent	2m21s
 08:37:09	P1	7m42s d=35s
 08:37:44	B2	8m17s d=50s
 08:38:34	P2	9m07s
Vent & Turban continue

				     ΣB=08m32s	ΣD=09m07s

Beehive also did not erupt overnight, so went to Geyser Hill for a wait. At first it was cool and overcast, then the clouds disappeared and it became windy. When the Indicator did start, it was time to move to avoid the potential downpour. Based on the top of the Inn flags, it was going to be safe along the southern end of the railing, and it was. The eruption started with an explosive burst, then quit for a moment, only to rocket back up. The duration was a bit short, perhaps due to all that preliminary slopping around.

Went back out to Grand at the six hour mark, expecting this to be the longer interval. And it was, just under eight hours long. The Turban eruption prior to the Grand eruption was unusually short, just over 2-1/2 minutes. At the eight minute mark, Grand's pool looked full, and it slowly kept looking better until the eruption.

This time we had a first burst that lasted longer than the morning eruption, followed by a minute long pause and another minute long second burst. By the end of that burst, Vent was roaring away, but Grand's vent did have water in it for about 15 seconds. During the eruption West Triplet overflowed enough that the wet runoff channel extended all the way to the boardwalk and joined up with the Grand runoff.

2024-Aug-25:16:19:39 G2Q

 16:19:30	Boop	-0m08s
 16:19:39	B1	--- d=09m31s
 16:21:02	Turban	1m23s
 16:22:53	Vent	3m14s
 16:29:10	P1	9m31s d=01m04s
 16:30:14	B2	10m35s d=01m03s
 16:31:18	P2	11m39s
 16:32:12	V&T Quit	12m33s
 16:39:08	V&T Restart	19m29s

				     ΣB=10m35s	ΣD=11m39s
	* * * * *
 14:26:51			d=04m18s 	
 14:47:44	Int: 20m53s	d=04m17s	
 15:06:52	Int: 18m08s	d=04m04s
 15:25:43	Int: 18m51s	d=04m05s
 15:44:35	Int: 18m52s	d=03m42s
 16:01:44	Int: 16m09s	d=02m36s 	
		      Grand: 17m55s

As I was leaving, I saw that water in the vent of Uncertain was visible, gently rising and falling. It was drop out of sight for a while, then come back. Occasionally there was a blip, but it was mostly quiet. Finally after about twelve minutes, the water rose to overflow, and an eruption commenced.


Posted on

Observations for 2024 August 24


Since the interval for Beehive was already over 14 hours, decided to spend an hour on Geyser Hill just in case it decided to erupt. Left after an hour.

After last night, decided that I needed to continue to try to be out for a Grand eruption at six hours into the interval. Didn't need to do that, as the One Burst Grand eruption came just under the nine hour mark for the interval.

2024-Aug-24:12:58:18 T1C

 12:57:43	Vent Ovfl	-0m35s
 12:57:47	Turban	-0m31s
 12:58:14	Boop	-0m04s
 12:58:18	B1	--- d=09m23s
 13:00:50	Vent	2m32s
 13:07:41	P1	9m23s
Vent & Turban continue

				     	ΣD=09m23s
	* * * * *
 10:07:18			d=04m01s 	
 10:28:49	Int: 21m31s	d=03m00s 	
 10:47:58	Int: 19m09s	d=03m16s 	
 11:07:42	Int: 19m44s	d=03m49s 	
 11:27:41	Int: 19m59s	d=03m16s 	
 11:46:30	Int: 18m49s	d=03m10s 	
 12:04:27	Int: 17m57s	d=02m27s 	
 12:23:07	Int: 18m40s	d=03m06s 	
 12:39:56	Int: 16m49s	d=02m55s 	
		     Turban: 17m51s

Had just left the cabin for the Snowlodge to do some laundry and hadn't left the cabin area when I heard the "five minute" call for Beehive's Indicator. I'd have heard the call for the start if I'd taken the radio with me to the indoor plumbing. With the Beehive interval already approaching 22 hours, I was thinking that it might be a short indicator, but instead it was well over 25 minutes long.

In the evening the weather was not particularly pleasant. It was gray and overcast with a strong wind. At one point everyone waiting dug out their raingear as there were some droplets and the sky looked like it could get much wetter, but the rain didn't ever come. Fortunately only had to wait an hour for the One Burst Grand eruption. The start was explosive, with the first jet of water about 10 meters high, with no preliminary warning. The eruption itself lasted under 8-1/2 minutes, one of the shortest eruptions of Grand I've seen. There was no attempt at Grand's vent even trying to refill.

2024-Aug-24:19:56:30 G1C

 19:56:30	B1	--- d=08m24s
 19:56:57	Turban	0m27s
 19:58:13	Vent Ovfl	1m42s
 19:59:40	Vent	3m09s
 20:04:55	P1	8m24s
Vent & Turban continue

				     	ΣD=08m24s
	* * * * *
 18:57:42			d=04m42s 	
 19:14:47	Int: 17m05s	d=04m13s 	
 19:33:14	Int: 18m27s	d=03m17s 	
		      Grand: 23m16s

Posted on

Observations for 2024 August 23


Opened the cabin door to rain. Was expecting rain in the afternoon, but not at dawn. A check of the weather maps showed there would be a lull in which I could head out to Grand and not get wet until after I arrived, and would still get out early. As it was, I was looking over at Uncertain as I was walking by when I heard the start of the One Burst Grand eruption. Once I got past the steam from the southerly wind, I could see the activity clearly. During the eruption the sprinkling started up, so I spent a little time getting out the raincoat.

The eruption lasted 12-1/4 minutes, and I immediately left although it appeared that the threatened rain wasn't going to happen. I even considered staying around at Uncertain. Fortunately I didn't as it started pouring again just after I arrived at the cabin.

2024-Aug-23:06:50:54 1Q

 06:50:54	B1	--- d=12m15s
 06:54:17	Vent	3m22s
 07:03:09	P1	12m15s
 07:03:50	V&T Quit	12m55s

				     	ΣD=12m15s

The showers hadn't returned by the time I went out for the afternoon Grand eruption, but it was windy and cloudy, and it looked like there were showers off in the distance. For no apparent reason (unless there was a Turban Delay interval before I arrived), Grand just did not want to erupt. After several false starts, we finally got a rain shower that lasted about 15 minutes. That ended and suddenly it was clear and sunny. Then there was an attempt at a Turban Delay, but we got the One Burst Grand well before the cutoff point.

This time the single burst lasted about ten minutes, and Grand's vent did have water sloshing about for about 20 to 30 seconds before draining. At that point Turban and Vent became even more vigorous, then suddenly quit erupting.

2024-Aug-23:15:45:33 G1Q

 15:45:33	B1	--- d=09m54s
 15:46:27	Turban	0m54s
 15:48:14	Vent	2m40s
 15:55:28	P1	9m54s
 15:57:19	V&T Quit	11m45s
 16:04:38	V&T Restart	19m04s

				     	ΣD=09m54s
	* * * * *
 12:55:56			d=04m17s 	
 13:16:57	Int: 21m01s	d=04m29s 	
 13:35:35	Int: 18m38s	d=03m59s 	
 13:54:39	Int: 19m04s	d=03m03s 	
 14:11:35	Int: 16m56s	d=03m33s 	
 14:29:08	Int: 17m33s	d=02m59s 	
 14:45:39	Int: 16m31s	d=03m07s 	
 15:03:40	Int: 18m01s	d=03m12s 	
 15:22:10	Int: 18m30s	d=03m25s 	
		      Grand: 23m23s

Heard the One Burst Grand eruption in the dark as I was riding my bike up toward Castle. Too loud to be Sawmill. Moon was just a bright spot below the eastern horizon. Based on the end time, that interval was about 6h18m. So much for being able to start the wait a bit later. (Another four Grand eruptions day, too.)


Posted on

Observations for 2024 August 22


It was just starting to get light at 06:00 as I tied my bike up over by Castle. Across the way there was a steaming area that looked suspiciously like Rift erupting. And it was.

The Rift eruption continued for almost another 1-1/2 hours, finally ending at 07:23. There was no evidence of even runoff from West Triplet, no pools of wet in the runoff channel. During that time I saw a number of Bulger minor eruptions. Also spent time at Sawmill as Uncertain was strongly gurgling. Once it appeared as if it was starting to erupt, but then Sawmill's pool starting to boil and erupt.

If the Turban interval before the Grand eruption had lasted another 30 seconds, it would've been a Turban Delay interval. The eruption was nicely backlit, but extremely steamy. Fortunately, the rain on the north side was light so it was possible to see Turban and Vent start.

When the first burst ended at 10m18s, I figured the eruption was over and started head over to turn off my camera, when I was surprised by a second burst. The pause was extremely short, and steamy, but well above the steam over Grand .

2024-Aug-22:07:51:19 G2Q

 07:51:19	B1	--- d=10m18s
 07:51:24	Turban	0m05s
 07:53:45	Vent	2m26s
 08:01:37	P1	10m18s d=21s
 08:01:58	B2	10m39s d=26s
 08:02:25	P2	11m06s
 08:03:11	V&T Quit	11m51s

				     ΣB=10m45s	ΣD=11m06s
	* * * * *
 06:13:40			d=03m50s 	
 06:32:10	Int: 18m30s	d=03m12s 	
 06:50:11	Int: 18m01s	d=03m16s 	
 07:08:59	Int: 18m48s	d=03m24s 
 07:27:04	Int: 18m04s	d=03m25s 	
		      Grand: 24m14s

As I left, the Bulger minor eruptions continued, and Belgian Pool was full to the rim. Crystal Spring had overflowed enough that the water in the runoff had reached the boardwalk.

Went out in the afternoon with the expectation that it might be a long wait. Not surprised to see Crystal Spring and Belgian Pool way down, about 15cm with the shelf in Crystal partly exposed.

Also not surprised when the second Turban eruption I saw came after a 32 minute interval, and include a couple of Grand boops. It took seven more Turban eruption intervals before Grand finally had the One Burst Erutpion. During the wait I saw some splashing from Sput A, and Sput D (Delta) erupted for the first time shortly before Grand.

2024-Aug-22:16:25:32 D7/G1C

 16:25:28	Vent Ovfl	-0m03s
 16:25:32	B1	--- d=10m59s
 16:25:40	Turban	0m07s
 16:28:30	Vent	2m58s
 16:36:31	P1	10m59s
Vent & Turban continue

				     	ΣD=10m59s
	* * * * *
 13:51:48			d=03m50s 	
 14:23:58	Int: 32m10s	d=03m53s  D0 Boop: 14:20:57	
 14:39:22	Int: 15m24s	d=03m47s  D1	
 14:56:56	Int: 17m34s	d=03m09s  D2	
 15:15:13	Int: 18m17s	d=02m57s  D3	
 15:32:26	Int: 17m13s	d=03m37s  D4
 15:50:37	Int: 18m11s	d=03m22s  D5
 16:08:39	Int: 18m01s	d=03m25s  D6	
		      Grand: 16m52s

When I left, Crystal and Belgian were even lower than what I saw earlier, maybe down 20cm. Oval was low, and the north vent was occasionally jetting water onto the outer rim.

The clouds were clearing as the moon was rising. During the wait for the next Grand, saw a couple of Daisy eruptions and what appeared to be a weak Oblong eruption. At least I didn't hear any activity, and the steam cloud wasn't all that big. The Grand eruption had two bursts, and since it lasted less than ten minutes, it could have had a third.

2024-Aug-23:00:19:45 T2C

 00:19:24	Turban	-0m21s
 00:19:45	B1	--- d=08m16s
 00:22:15	Vent	2m30s
 00:28:01	P1	8m16s d=31s
 00:28:32	B2	8m47s d=58s
 00:29:31	P2	9m46s
Vent & Turban continue

				     ΣB=09m15s	ΣD=09m46s
	* * * * *
 22:30:12			d=04m03s 	
 22:49:11	Int: 18m59s	d=04m09s 	
 23:06:57	Int: 17m46s	d=04m18s 	
 23:26:31	Int: 19m34s	d=04m01s 	
 23:44:50	Int: 18m19s	d=03m45s 	
 00:02:59	Int: 18m09s	d=03m44s 	
		     Turban: 16m25s