Last night's fiasco seems to have shifted Grand into a mode where it will have only one eruption in good daylight, and two in the dark or without sun. But it was a bit of a relief to see that because it erupted about the time I woke up, I wouldn't need to wait for it.
Arrived at the Bijou Cage as it was starting to get light. It was also quite foggy. At times difficult to see if Bijou was actually erupting, so had to go by sound. Waited well over an hour and a half with only some good sized Masfiff surges. Shortly after Rocket had a major eruption we finally got a 3m00s Standard Bathtub, with some water visible in Feather and a bit more splashing that usual from the Southwest Vents.
A Standard Bathtub consists of a large surge from Mastiff's back vent, followed by a pause by Bijou. This pause lasts about three minutes, give or take twenty seconds or so. A different length is notable. Water in front Mastiff rises to about 10 to 20 cm below the rim for most of the pause. The Southwest Vents will spit briefly. After Bijou restarts, Catfish and the B-C Vent will also splash, and then Bijou will have a brief period of roaring. This behavior was fairly consistent before the last eruption, and has been common since.
Returned to Grand with the expectation of an afternoon eruption. After about an hour and a half, there was the first documented Giant Hot Period, with a short eruption of Feather Geyser, but no overflow from Mastiff. At that point I'd rather be down in the Cage, but figured it would be a few hours until the next event there, so I'd have plenty of time to see Grand and then get down that way. Instead, there was a Turban Delay Interval.
And at that point, for the next three hours, Grand showed no signs of trying to erupt. After two hours, we got an eruption of West Triplet, but when it ended and Grand didn't erupt at the next opportunity, I decided that I'd rather be in the Cage and left.
2026-Sep-06 : 11:30:12 11:30:13 d=02m45s 11:48:34 Int: 18m21s d=03m08s 12:08:37 Int: 20m03s d=03m07s 12:28:46 Int: 20m09s d=03m29s 12:46:52 Int: 18m06s d=03m38s 13:18:51 Int: 31m59s d=04m34s D0 13:36:28 Int: 17m37s d=03m31s D1 13:54:41 Int: 18m13s d=03m31s D2 14:14:39 Int: 19m58s d=03m37s D3 14:32:06 Int: 17m27s d=03m45s D4 14:52:20 Int: 20m14s d=03m27s D5 15:10:43 West Triplet 15:11:41 Int: 19m21s d=03m31s D6 15:28:04 Int: 16m23s d=03m00s D7 15:44:26 Int: 16m22s d=03m08s D8 16:02:45 Int: 18m19s D9
Down at the Bijou Cage, there were some Bijou pauses, but no water was visible in Mastiff at any time. After four hours, in the dark we finally got a Standard Bathtub that lasted for 4m44s but didn't have any Southwest Vents spitting. At that point, everyone abandoned the Cage.
On the way back, I did stop briefly to watch an illuminated Castle eruption turning to steam.
(Grand finally erupted on D16 and a 12h20m interval. It also had two bursts.)