Observations for 2026 May 28


When I awoke at 05:00 surprised to see an entry for Turban around 04:30. That meant that Grand probably hadn't erupted, and worth going out. It was just getting light and a bit foggy, but I arrived to find Grand still full at 9-1/2 hours. There didn't seem to be any indication of a recent Rift eruption.

I then got to wait through an hour's worth of short Turban intervals and durations before West Triplet started to erupt. A half hour later Grand finally got around to erupting, nearly an eleven hour interval. This time the Turban to Grand interval was more normal, and I was even able to see Vent overflow beforehand.

Rift started erupting during the first burst. The Grand burst ended abruptly with a short duration well under eight minutes, but the second burst lasted over 2-1/2 minutes. West Triplet was still in eruption as I left.

2026-May-28 : 06:49:50 T2*Q

 06:49:16	Turban	-0m34s
 06:49:32	Vent Ovfl	-0m18s
 06:49:50	B1	--- d=07m39s
 06:52:01	Vent	2m11s
 06:57:29	P1	7m39s d=41s
 06:58:10	B2	8m20s d=02m34s
 07:00:44	P2	10m54s
 07:01:32	V&T Quit	11m42s

				     ΣB=10m13s	ΣD=10m54s
	* * * * *
 05:23:56			d=03m18s 	
 05:39:55	Int: 15m59s	d=02m45s 	
 05:56:22	Int: 16m27s	d=03m30s 	
 06:14:27	Int: 18m05s	d=03m13s 	
 06:20:39	West Triplet
 06:33:21	Int: 18m54s	d=03m17s 	
 06:56:00	Rift
		     Turban: 15m55s

After breakfast went over to Daisy. The wind was uncooperative, and the duration of the eruption was only 3-1/2 minutes.

Then it was down to Fan & Mortar, where there was more activity that can look really good, until you realize that it does it alot. In this case, after being mostly quiet with just Angle erupting for about 40 minutes, High and Gold started. They quickly increased in height until High was going about 3-4 meters. This lasted about ten minutes, then quickly died down. After another ten minutes of just Angle splashing, I left the area.

Got out to Grand at the six hour mark. Got to see a normal Turban eruptions and then a Delay Interval eruption. When I went out, I was hoping Grand would hold off a bit, having an eruptions between 14:00 and 15:00. That would set the next eruption up to be just after dark by a nearly full moon. As it turned out, the delay lasted for eight Turban eruption intervals, and it was nearly 16:00 before we got the One Burst Grand eruption. Once again, there were a couple of periods during the eruption where the jetting quieted down, and in decades past that would have resulted in the end of the burst. This time it seemed that Turban quit as Grand quit.

2026-May-28 : 15:46:45 D8/T1Q

 15:46:05	Turban	-0m40s
 15:46:08	Vent Ovfl	-0m37s
 15:46:35	Boop	-0m10s
 15:46:45	B1	--- d=11m30s
 15:49:23	Vent	2m38s
 15:58:15	P1	11m30s
 15:58:21	V&T Quit	11m36s

				     	ΣD=11m30s
	* * * * *
 12:40:40			d=03m40s 	
 13:14:41	Int: 34m01s	d=05m11s  D0	
 13:34:17	Int: 19m36s	d=04m03s  D1	
 13:53:59	Int: 19m42s	d=03m28s  D2	
 14:15:06	Int: 21m07s	d=03m59s  D3	
 14:34:43	Int: 19m37s	d=03m57s  D4	
 14:52:08	Int: 17m25s	d=02m55s  D5	
 15:10:18	Int: 18m10s	d=03m41s  D6	
 15:28:35	Int: 18m17s	d=03m33s  D7	
		     Turban: 17m30s

West Triplet started to erupt just after Grand.

Afterwards, went back to Fan & Mortar where there was another series of tall activity from the Fan vents. The first time it was just High and Gold, the second time Angle joined in, and they activity wasn't quite as high.

Beehive's Indicator got called just before sunset, and the sun sat during the Beehive eruption. Unfortunately, the wind was in the wrong direction for rainbows. Instead the view was into the sun, but it was still interesting lighting.

It was still a bit light when it was time to head out for Grand again, and wait for a moonlight eruption. On the way out had to dodge a bison near cabin 200 and a second one below the lift station. Arrived in time to catch the start of a West Triplet eruption.

Unfortunately, that meant we got to wait for the next West Triplet eruption opportunity. Three hours later, after midnight, Grand finally did erupt, with West Triplet following within a few minutes. The first burst seemed too short for it to be the only one, and after a relatively short pause, we got another burst. About 30 seconds in, it seemed like the burst was stopping, but then it continued on for a total of nearly a minute.

2026-May-29 : 00:36:15 T2C

 00:35:31	Turban	-0m44s
 00:36:15	B1	--- d=08m17s
 00:44:32	P1	8m17s d=35s
 00:45:07	B2	8m52s d=57s
 00:46:04	P2	9m49s
Vent & Turban continue

				     ΣB=09m14s	ΣD=09m49s
	* * * * *
 21:35:03			d=05m20s 	
 21:40:28	West Triplet
 21:53:18	Int: 18m15s	d=04m25s 	
 22:13:21	Int: 20m03s	d=03m44s 	
 22:33:12	Int: 19m51s	d=03m52s 	
 22:51:44	Int: 18m32s	d=04m12s 	
 23:09:41	Int: 17m57s	d=03m27s 	
 23:27:14	Int: 17m33s	d=03m24s 	
 23:43:35	Int: 16m21s	d=03m38s 	
 00:01:25	Int: 17m50s	d=03m48s 	
 00:18:31	Int: 17m06s	d=03m50s 	
 00:39:55	West Triplet
		     Turban: 17m00s