Got up at dawn expecting to confirm that Grand had erupted recently, and that was the case. Based on the empty vents and lack of activity, I put the eruption around 05:00. I also noticed that Castle was having a deep, rumbling steam phase, also indicating that there had been a major eruption much earlier. Sawmill was also in eruption, but Spasmodic had a wet runoff channel, and looked it was near overflow again, but I didn't stay to see if that would happen.
The wait for the midday Grand eruption was relatively short. Saw Turban in eruption, and the next eruption was about 33 minutes later, so definitely a Turban Delay interval. Shortly after, a bison wandered across Grand's runoff channels, headed toward Economic. The One Burst Grand eruption came four Turban eruption intervals later.
2024-Aug-30:12:39:31 D4/G1C 12:39:29 Boop -0m02s 12:39:31 B1 --- d=10m08s 12:40:22 Turban 0m51s 12:41:22 Vent Ovfl 1m51s 12:43:05 Vent 3m34s 12:49:39 P1 10m08s Vent & Turban continue ΣD=10m08s * * * * * 11:24:56 d=05m20s D0 11:43:29 Int: 18m33s d=04m08s D1 12:02:31 Int: 19m02s d=04m02s D2 12:21:03 Int: 18m32s d=03m54s D3 Grand: 18m28s
Afterwards, noticed that Uncertain was having occasional splashes while Sawmill was low. The latter slowly rose over the next half hour, and the splashing in Uncertain decreased, until Sawmill finally did erupt.
Once again, arrived to a Turban Delay Interval. This time saw the preceeding eruption from the bike rack, and there was a small boop that resulted in and immediate drop in Grand's pool level. On the third Turban eruption there was strong overflow, and the subsequent Turban eruption had no overflow, but it lasted far too short to be a true Delay. Then on the fifth interval, Grand had another Turban Delay, just over the limit. The One Burst Grand eruption was just visible in the twilight. Toward the end of the eruption, there were several slowdowns that behaved like Grand was trying to pause.
2024-Aug-30:20:34:29 D5/D0/G1Q 20:34:24 Boop -0m05s 20:34:29 B1 --- d=10m00s 20:35:13 Turban 0m44s 20:37:37 Vent 3m08s 20:42:59 FP 8m30s 20:44:00 FP 9m31s 20:44:29 P1 10m00s 20:46:08 V&T Quit 11m39s ΣD=10m00s * * * * * 19:00:18 d=04m16s D0 Boop: 18:56:13 19:16:22 Int: 16m04s d=04m29s D1 19:34:31 Int: 18m09s d=03m56s D2 19:53:45 Int: 19m14s d=03m15s D3 20:09:21 Int: 15m36s d=03m50s D4 Grand: 25m08s