Observations for 2025 August 20


It seemed to be calm for the pre-dawn eruption of Beehive, but there was just enough air movement to cause the spray to thoroughly wet down the walkway along the railing.

Decided the night before that there was no reason to get out to Grand before it got light. Didn't set an alarm, expecting to get out when I did wake up. Arrived out there at the 8-1/2 hour mark and found a full pool. Two Turban eruption intervals later, there was heavy overflow signaling that the eruption was about to start. The One Burst eruption at least lasted well over eleven minutes. By the end the tops of the highest jet were illuminated by the sunlight coming over the trees.

2025-Aug-20 : 07:03:57 G1Q

 07:03:57	B1	--- d=11m31s
 07:05:03	Turban	1m06s
 07:07:15	Vent	3m18s
 07:15:28	P1	11m31s
 07:15:49	V&T Quit	11m52s
 07:23:07	V&T Restart	19m10s

				     	ΣD=11m31s
	* * * * *
 06:31:23			d=03m25s 	
 06:48:24	Int: 17m01s	d=03m13s 	
		      Grand: 15m33s

Percolator was quiet the short time we were waiting out there, and during the Grand eruption West Triplet went from empty to starting to erupt shortly after Grand ended.

Went out again for Grand's first overflow. This time it took place at 4h35m, which is a bit more like what I'm used to seeing. But it also took place during a Turban Delay interval of nearly 32 minutes. Just after the previous Turban eruption the pool was extremely low, and by the 15 minute mark it appeared that first overflow was not going to happen that Turban interval. But because of the Delay, the pool kept on filling instead of the expected drop, and the overflow started a the 24 minute mark.

At that point the clouds to the west looked like rain, and I headed back in, just in case.

Went back out to Grand around the seven hour mark, with the weather radar map showing most of the showers were streaming past to the south and east. The Turban durations were short, between 3m15s and 2m30s. After an hour, West Triplet began to erupt. Twenty-four minutes in, Rift also began to erupt. West Triplet continued to erupt, finally ending with a duration of 54 minutes.

At about an 1-1/2 hours into the Rift eruption, Grand had a Turban Delay interval. Shortly after Turban ended, so did Rift.

The Delay ended up being only two Turban eruption intervals, and we got a One Burst Eruption which started after about 8-10 seconds of booping.

2025-Aug-20 : 17:25:19 D2/G1C

 17:25:11	Boop	-0m08s
 17:25:19	B1	--- d=10m39s
 17:25:46	Vent Ovfl	0m27s
 17:25:54	Turban	0m35s
 17:28:24	Vent	3m05s
 17:35:58	P1	10m39s
Vent & Turban continue

				     	ΣD=10m39s
	* * * * *
 10:52:26ie
 11:07:53	Int: 15m27s	d=3m51s
 11:31:53	Grand 1st ovfl		4h35m
 11:39:35	Int: 31m42s		Delay
	* * * * *
 14:10:07			d=03m12s 	
 14:27:49	Int: 17m42s	d=03m05s 	
 14:48:03	Int: 20m14s	d=02m53s 	
 14:56:51	West Triplet d=54m03s 
 15:07:16	Int: 19m13s	d=02m46s 	
 15:25:09	Int: 17m53s	d=03m10s 	
 15:31:11	Rift d=1h34m04s
 15:43:35	Int: 18m26s	d=03m21s 	
 16:03:12	Int: 19m37s	d=02m27s 	
 16:20:03	Int: 16m51s	d=02m42s 	
 16:51:16	Int: 31m13s	d=02m36s  D0	
 17:07:45	Int: 16m29s	d=02m33s  D1	
		      Grand: 17m34s

Went out later around sunset to Geyser Hill intending to record some videos, but Slot erupted just as I got to Giantess. That video will have to wait.