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Observations for 2025 August 18


Did not expect to arrive in the Old Faithful area and find that Grand had not erupted since before we left home. Was pleasantly surprised to get checked in and partially unload the truck and see that a half hour later it still had not erupted, and interval approaching twelve hours. So suspended getting the cabin set up for a wait out at Grand. Didn't bring the light, as it needed to be unpacked first.

Only waited one Turban eruption interval of just over fourteen minutes. The pool filled nicely with Vent starting to overflow before the start of Turban's eruption. Then Grand took its time getting started with a series of large boops before the surging turned into jetting.

At just over 7-1/2 minutes, the burst was so short we pretty much had to get a second burst, which we did. The total eruption duration was just over nine minutes, and Grand didn't really make an effort for a third burst. Vent and Turban slowed down as if they were stopping, then resumed normal post eruption activity.

2025-Aug-18 : 18:06:43 T2C

 18:05:32	Vent Ovfl	-1m11s
 18:05:36	Turban	-1m07s
 18:06:34	Boop	-0m09s
 18:06:43	B1	--- d=07m39s
 18:08:23	Vent	1m40s
 18:14:22	P1	7m39s d=42s
 18:15:04	B2	8m21s d=45s
 18:15:49	P2	9m06s
Vent & Turban continue

				     ΣB=08m24s	ΣD=09m06s
	* * * * *
 17:51:19			d=03m23s 	
		     Turban: 14m17s