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Observations for 2025 June 04


At first I thought the overnight Grand interval was ten hours, and I had no reason to head out. Then I woke up and redid the math, and decided a twelve hour interval was worth investigating.

I expected to walk up to a full pool, and I did. So much for seeing fog rising above the fog on the webcam. In any case, it was a Turban eruption interval later that we got a Delay that lasted over 33 minutes.

A quick check of Economic showed it to be well below overflow, at the level of the inner rim. There also weren't many puddles in the runoff, and the area beyond the boardwalk was dry.

But like last night, there was only a two Turban eruption interval delay, with the explosive Grand start actually visible due to a slight breeze from the north. Grand ended at exactly eight minutes, followed by a half-minute long pause before the second burst. At 1m07s, that burst wasn't long enough to constitute a Long Burst. About 45 seconds after the end of the second burst, it appears through the steam that Grand was full and starting to push out water. That's when the activty of Turban and Vent picked up, with Vent blasting away. No third burst, and a less than ten minute long Grand eruption ended with Vent & Turban quitting.

2025-Jun-04 : 07:37:21 D2/G2Q

 07:37:21	B1	--- d=08m00s
 07:37:51	Vent Ovfl	0m30s
 07:38:09	Turban	0m48s
 07:40:50	Vent	3m29s
 07:45:21	P1	8m00s d=34s
 07:45:55	B2	8m34s d=01m07s
 07:47:02	P2	9m41s
 07:48:40	V&T Quit	11m19s

				     ΣB=09m07s	ΣD=09m41s
	* * * * *
 06:23:55			d=04m15s 	
 06:58:18	Int: 34m23s	d=05m25s  D0	
 07:15:26	Int: 17m08s	d=04m21s  D1	
		      Grand: 21m55s

Decided that since there wasn't much going on, and it was early, that this might be a good time to go to Fountain Paint Pots and maybe seen an eruption, or at least take a look at the vista enhanced overlook.

There were some periodic Jet eruptions after our arrival, and a half hour later Morning's Thief erupted. I always remembered it as being tall and narrow. This eruption was tall and wide, with much overlap of Morning's pool.

Fourteen minutes later Fountain finally erupted, with two more of the wide and tall Morning's Thief eruptions. Fountain lasted only 28-1/2 minutes. I tried to take video of the whole eruption from the first Morning's Thief, but the wind was directly toward the overlook. And it was cold so there was plenty of steam. Now that it actually is an overlook, will have to try again under better conditions.

In the afternoon we watch ten eruptions of Turban before we finally got a One Burst Grand Eruption. Every one of those was similar to the preceeding, the only change was that the intervals between Turban eruptions got shorter. After the sixth Turban eruption, West Triplet started to erupt. This is the first time I've seen West Triplet have a normal erupion lasting about 1/2 hour that wasn't associated with eruptions of Grand or Rift. At least the One Burst Grand eruption lasted over 11 minutes.

2025-Jun-04 : 16:21:22 G1Q

 16:21:14	Vent Ovfl	-0m08s
 16:21:20	Boop	-0m02s
 16:21:22	B1	--- d=11m19s
 16:21:23	Turban	0m01s
 16:24:05	Vent	2m43s
 16:32:41	P1	11m19s
 16:33:41	V&T Quit	12m19s

				     	ΣD=11m19s
	* * * * *
 13:20:11			d=04m28s 	
 13:40:25	Int: 20m14s	d=04m15s 	
 13:59:16	Int: 18m51s	d=04m00s 	
 14:18:28	Int: 19m12s	d=04m06s 	
 14:37:37	Int: 19m09s	d=03m44s 	
 14:55:52	Int: 18m15s	d=03m22s 	
 14:56:09	West Triplet d=27m03s 
 15:11:56	Int: 16m04s	d=03m29s 	
 15:30:04	Int: 18m08s	d=03m43s 	
 15:48:02	Int: 17m58s	d=03m39s 	
 16:05:14	Int: 17m12s	d=03m26s 	
		      Grand: 16m08s

After that, it was time to have dinner. And after dinner, Beehive erupted. The wind cooperated and no one on the walkway got wet.

The sky was clear and the moon was beyond the first quarter, with the temperature already in the upper 30s. But only had to wait a couple of Turban eruption intervals before the Grand One Burst Eruption started. Once again, it was a short eruption, at 8m41s, and there was no attempt at a second burst.

2025-Jun-04 : 23:05:10 G1C

 23:05:10	B1	--- d=08m41s
 22:06:05	Turban	0m55s
 23:08:55	Vent	3m45s
 23:13:51	P1	8m41s
Vent & Turban continue

				     	ΣD=08m41s
	* * * * *
 22:23:14			d=04m26s 	
 22:43:40	Int: 20m26s	d=04m14s 	
		     Grand: 21m30s