Observations for 2025 May 24


The days started the way many do-- with a call of "water in Beehive's Indicator". Got out in plenty of time. There was a breeze blowing the spray across the river and onto the overlook. This meant we had a strong half double rainbow most of the eruption.

A few hours later, it was time again to go out to Grand. Sawmill was in eruption, while Belgian was full and West Triplet was in overflow. A quick check on Economic showed that it was unchanged from yesterday, overflowing in several directions with a hint of convection over the vent.

Only had to wait for two Turban eruption intervals before we got our Grand eruption. This was my first two burst eruption of the trip, lasting just under 10-1/2 minutes, with Vent & Turban continuing after. During the wait for Grand I noticed that West Triplet was in overflow at least once, and overflow started during this Grand eruption.

2025-May-24 : 11:46:42 G2C

 11:46:37	Vent Ovfl	-0m04s
 11:46:40	Boop	-0m01s
 11:46:42	B1	--- d=08m57s
 11:46:54	Turban	0m11s
 11:49:50	Vent	3m07s
 11:55:40	P1	8m57s d=39s
 11:56:18	B2	9m36s d=37s
 11:56:56	P2	10m13s
Vent & Turban continue

				     ΣB=09m34s	ΣD=10m13s
	* * * * *
 10:48:41			d=04m26s 	
 11:09:21	Int: 20m40s	d=04m31s 	
 11:27:38	Int: 18m17s	d=04m03s 	
		      Grand: 19m04s

After lunch it was time to visit more of the basin beside the walkway from Castle to Grand. I caught a Rocket eruption as I stopped a the bike rack by Grotto. I then discovered that the Bijou Monkey Cage was no longer there, but under reconstruction. At least it appears they are going to rebuild it as it was before.

Bijou Monkey Cage construction
Bijou Monkey Cage construction

Did a quick check on Fan & Mortar just to see that nothing has happened there in the last few days. Then headed over to Daisy.

I found that Splendid was full. There was water being pushed into the northern (left) lobe where Splendid's runoff channels begin. Large ripples on the pool, but I never saw any boiling during the lead-up to the Daisy eruption. About ten minutes before Daisy, Splendid began to drop such that when Daisy started, the lobe was empty of water. Despite a strong wind, Daisy had an interval just over 100 minutes.

After Daisy, the refill of Splendid didn't look much different from previous visits. Most of the boiling during the fifteen minutes of observation was from the Side Boiler, with single, infrequent bursts from the Main Vent.

The Sawmill eruption I'd seen while headed to Grand earlier resulted in a deep drain at the Sawmill Group. Sawmill and Uncertain were both quiet when I arrived, but a few minutes later Sawmill had an eruption lasting about 25 seconds. That seemed to help stimulate Uncertain. Just as it was starting to look promising, Sawmill started, and proceeded to erupt for about 26 minutes. The activity from Uncertain died down during the first few minutes of the eruption, and it did nothing for about 15 minutes. Then splashing started up, and it appeared we might even get a dual eruption with Sawmill.

When Sawmill did quit, the activity in Uncertain increased. It seemed to stall during a short Tardy eruption a couple of minutes after the end of Sawmill's eruption. But five minutes later, the surging and bubbling built into another nice Uncertain eruption.

Back out for the evening Grand. Saw Turban in eruption as I locked up my bike. Noted that Belgian had dropped a little, but was still mostly full, while West Triplet had just ended overflow. Was finishing setting up my camera when Grand suddenly started booping, catching me off guard. So I failed to get a video of another One Burst Grand eruption. The wind direction was toward the walkway, soaking the benches between the prediction sign and West Triplet.

2025-May-24 : 17:58:33 G1C

 17:58:33	B1	--- d=09m52s
 17:59:17	Turban	0m44s
 18:00:33	Vent Ovfl	2m00s
 18:02:02	Vent	3m29s
 18:08:25	P1	9m52s
Vent & Turban continue

				     	ΣD=09m52s

West Triplet was back in overflow, and Sawmill was erupting, as we left the area. Have not seen any activity in Bulger since the activity of Bulger's Hole.