Month: September 2024

Before sunrise I was over by Castle and started to feel droplets. Despite the weather forecast of clear, the clouds overhead were more than just keeping it dark. Didn't have a long wait for the Grand eruption, and once again it was a short two burst eruption that seems to have made no attempt at a third burst. At least Vent & Turban didn't quit.

2024-Sep-09:07:00:29 T2C

 06:59:58	Turban	-0m15s
 07:00:08	Boop	-0m05s
 07:00:13	B1	--- d=08m37s
 07:02:53	Vent	2m40s
 07:08:50	P1	8m37s d=22s
 07:09:12	B2	8m59s d=43s
 07:09:55	P2	9m39s
Vent & Turban continue

				     ΣB=09m20s	ΣD=09m42s
	* * * * *
 06:23:12			d=03m59s 	
 06:41:45	Int: 18m33s	d=04m11s 	
		     Turban: 18m13s

With time to kill, went over to Geyser Hill as it had been sixteen hours since the previous Beehive eruption. Didn't have a chance to start reading a book when the Indicator started. This was also a relatively short Indicator, with a duration under 20 minutes.

It was also windy up there, and I thought at times I could smell the breakfast odors coming from the Lower Store, as it would have been directly upwind. With is more interesting as during the Beehive eruption they had a fire alarm over there go off.

Later it was another short wait for another One Burst Grand Eruption. The wind had not improved and the smoke seemed stronger by then. After the eruption West Triplet came up to overflow. It had some heavy convection but no thumps or splashes.

2024-Sep-09:13:20:34 T1Q

 13:19:48	Turban	-0m46s
 13:20:10	Vent Ovfl	-0m24s
 13:20:27	Boop	-0m07s
 13:20:34	B1	--- d=10m35s
 13:23:11	Vent	2m37s
 13:31:09	P1	10m35s
 13:32:12	V&T Quit	11m38s

				     	ΣD=10m35s
	* * * * *
 13:00:43			d=04m24s 	
		     Turban: 19m05s

Mid-afternoon was the time to check out Fountain, based on its earlier activity. Arrived just in time to see the start, a 4-1/2 hour interval, along with a couple of Morning's Thief eruptions.

At sunset walked up to a Turban Delay Interval, but fortunately, we got the One Burst Eruption instead of a couple of hours of a delay. The eruption itself lasted 12-1/2 minutes, with Vent & Turban quitting within seconds of Grand's end.

2024-Sep-09:19:41:56 D0/G1Q

 19:41:56	B1	--- d=12m31s
 19:42:20	Turban	0m23s
 19:45:08	Vent	3m11s
 19:54:04	FP	12m07s
 19:54:27	P1	12m31s
 19:54:39	V&T Quit	12m42s

				     	ΣD=12m31s

Shortly after that, several of us sitting on the benches felt a sharp thump, much like the ones you get at Oblong or Artemisia. Have no idea what caused it, as there wasn't anyone near us on the boardwalk. As we left, we saw West Triplet overflow, but it didn't have any convection or thumping.

From there, went directly out to Fountain Group, on the off chance that we might get another Morning eruption. After about two hours of waiting, we got an eruption of Morning's Thief. That was followed within a minute or so of the start of Fountain.

For a double interval, the wait for the One Burst Grand eruption wasn't too long or cold. The eruption itself was nicely backlit but otherwise undistinguished.

2024-Sep-08:09:24:27 G1C

 09:24:23	Boop	-0m04s
 09:24:27	B1	--- d=10m08s
 09:24:52	Vent Ovfl	0m25s
 09:25:12	Turban	0m45s
 09:27:58	Vent	3m31s
 09:34:35	P1	10m08s
Vent & Turban continue

				     	ΣD=10m08s
	* * * * *
 08:05:01			d=04m05s 	
 08:26:22	Int: 21m21s	d=04m25s 	
 08:46:00	Int: 19m38s	d=04m00s 	
 09:04:15	Int: 18m15s	d=03m48s 	
		      Grand: 20m12s

Decided to ride the bike over to Biscuit Basin for some photos. There were a fair number of people pulling up to the close entrance road while I was there. None of them actually got out of their vehicles or even turned off the engine.

Sawmill was in eruption when I went out to see Grand, and was still in eruption over five hours later. With a deep drain in progress, I started taking some videos of the area. Got Oval Spring having constant low pool surging, some Spasmodic northwest vent activity, and a Penta steamphase minor. By that time Sawmill finally stopped, so it was time to transfer attention to Uncertain, which started looking good during the Penta activity. Fortunately, it took its time. During the wait, I managed to record a couple of low pool, no overflow eruptions of Sawmill, and finally got Uncertain erupting.

By the time Uncertain had finished, it was time to move over to Grand. We were over 7-1/2 hours into the interval when Beehive's Indicator was noticed by the NPS. So once again, the benches at Grand emptied. The Grand eruption started right after the end of Beehive's eruption, but it was a nice but short two burst eruption, so most who had went to Beehive made it back. The eruption lasted less than ten minutes, and there was no attempt at a third burst.

2024-Sep-08:17:31:25 T2C

 17:31:02	Turban	-0m23s
 17:31:05	Vent Ovfl	-0m20s
 17:31:19	Boop	-0m06s
 17:31:25	B1	--- d=08m02s
 17:33:25	Vent	2m00s
 17:39:27	P1	8m02s d=38s
 17:40:06	B2	8m41s d=55s
 17:41:01	P2	9m36s
Vent & Turban continue

				     ΣB=08m57s	ΣD=09m36s
	* * * * *
 15:40:28			d=01m37s 	
 15:56:55	Int: 16m27s	d=03m39s 	
 16:15:19	Int: 18m24s	d=04m05s 	
 16:33:52	Int: 18m33s	d=03m25s 	
 16:51:10	Int: 17m18s	d=03m58s 	
 17:09:42	Int: 18m32s	d=03m36s 	
		     Turban: 21m20s

When we arrived at the Fountain Paint Pots parking lot, there weren't any lights in the distance. We quickly got our gear together, and were about to leave when sudden there were lights and the sounds of people yelling. We hurried over and caught about two-thirds of the second Morning eruption of the year. It was nicely illuminated by several torches, and there was no wind, so Morning was not hidden behind Fountain and Clepsydra steam clouds. After Morning ended we stuck around for the Fountain eruption, which lasted about three quarters of an hour.

When we returned to the cabin, it was time for Grand. We had just arrived when Castle started to erupt. A few minutes later I heard some booping, and we got the One Burst Grand eruption. There was a slight breeze which helped move the steam away from our view. Unfortunately, it was another short eruption with no attempt at a second burst.

2024-Sep-08:23:48:03 G1C

23:47:55	Boop	-0m07s
23:48:03	B1	--- d=09m04s
23:57:07	P1	9m04s
Vent & Turban continue

				     	ΣD=09m04s

By this time Castle was in full steam phase, so we spent a little time watching it slowly die down.

The call for Beehive's Indicator went out around 23:00. With all the long durations, that meant plenty of time to get properly dressed and prepared for a calm, well lighted eruption. Little Squirt was also active at that time.

I missed it, but it turns out that at the same time, Rift was erupting. Not sure when it started, or for how long it erupted, but the next morning at dawn I found Grand an empty crater, and Turban had what appeared to be a normal eruption, so the previous interval wasn't excessively long.

Came back out about 2-1/2 hours later and Grand was well into overflow. Then proceeded to wait for nearly four hours for the mid-day One Burst Grand Eruption. As with many recent eruptions, this one started with a series of boops over a period of about ten seconds.

2024-Sep-07:13:15:38 T1Q

 13:15:25	Vent Ovfl	-0m13s
 13:15:29	Boop	-0m09s
 13:15:37	Turban	-0m01s
 13:15:38	B1	--- d=10m49s
 13:18:19	Vent	2m40s
 13:26:28	P1	10m49s
 13:27:16	V&T Quit	11m37s

				     	ΣD=10m49s
	* * * * *
 09:48:59			d=04m13s 	
 10:07:05	Int: 18m06s	d=04m14s 	
 10:26:14	Int: 19m09s	d=03m58s 	
 10:47:54	Int: 21m40s	d=04m11s 	
 11:08:00	Int: 20m06s	d=04m22s 	
 11:26:54	Int: 18m54s	d=03m48s 	
 11:45:19	Int: 18m25s	d=04m17s 	
 12:04:43	Int: 19m24s	d=04m02s 	
 12:22:37	Int: 17m54s	d=03m56s 	
 12:39:59	Int: 17m22s	d=03m55s 	
 12:58:22	Int: 18m23s	d=03m41s 	
		     Turban: 17m14s

After lunch, caught the mid-day Beehive eruption. For some reason, the boardwalk was nearly empty, despite (or because) an Old Faithful eruption being due. Old Faithful had a large preplay midway during the eruption of the Indicator, which ended up causing both geysers to start erupting within moments of each other.

The Sawmill eruption I saw start in the morning finally ended shortly after Grand, so after about 2-1/2 hours, I went out to wait for Uncertain. Sawmill was first rising, then started to drop. About this time Uncertain began to splash up, and we could see the water level in the vent. This level kept getting higher as Sawmill dropped. Finally Uncertain started to overflow. This lasted about 15 seconds, at which point the eruption finally began.

The next interval for the One Burst Grand eruption was surprisingly short. I expected it in the dark, but it was light enough to record video of the eruption, which once again started with a prolonged series of boops.

2024-Sep-07:19:37:29 G1Q

 19:37:19	Boop	-0m10s
 19:37:29	B1	--- d=10m20s
 19:38:02	Vent Ovfl	0m32s
 19:38:06	Turban	0m36s
 19:40:53	Vent	3m23s
 19:47:49	P1	10m20s
 19:48:50	V&T Quit	11m20s

				     	ΣD=10m20s
	* * * * *
 19:18:02			d=04m24s 	
		      Grand: 19m27s

As I was leaving Uncertain earlier in the day, I heard the radio call announcing that Morning Geyser had erupted. With Grand erupting sooner than expected, we decided that it made sense to at least head out there and see what might be happening. There was a small group of people who had heard of the eruption and were hanging around there. Waited for the crescent moon to set, about 45 minutes, during which time nothing happened. Water level was out of sight in Fountain.

As we were leaving, we saw a light approach from the Paint Pots. Suddenly the light veered off the boardwalk at the Volcanic Tablelands sign and headed north toward the trees. I had the powerful flashlight and lit the person up. He immediately and quickly headed back to the walkway, then continued toward us. For the next half hour, he wandered around the area as if wanted us to ignore him. In any case, he finally drove off.

It's true that we harassed him, but I would have ignored him completely if he had stayed on the walkway. As it was, I wonder if he had a campsite over behind that sign. Too bad for him Morning erupted.

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

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

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

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.

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

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.

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.