It appears that overnight there was at least one long Grand eruption interval, since it was a double interval of sixteen hours. Otherwise the One Burst Grand was the common variety where it lasts less than 10-1/2 minutes. Vent & Turban seemed like they tried to quit, but then the activity picked up considerably, with Vent roaring as if something else could happen.
2024-Sep-04:11:03:11 T1C 11:03:03 Vent Ovfl -0m08s 11:03:06 Boop -0m05s 11:03:10 Turban -0m01s 11:03:11 B1 --- d=10m17s 11:06:03 Vent 2m52s 11:13:28 P1 10m17s Vent & Turban continue ΣD=10m17s * * * * * 10:05:09 d=04m26s 10:23:17 Int: 18m08s d=04m02s 10:43:31 Int: 20m14s d=04m17s Turban: 19m39s
Spent some time in the Sawmill Group recording videos and doing some field testing. Nothing much interesting happened.
Sawmill Group 3_2024-Sep-04_1159 --------------- 2024-Sep-04 11:59:40 Quiet, near ovfl Sawmill 12:06:53ie >>>Eruption Daisy 12:16:15 Peak, dropping Sawmill 12:16:49 Quiet, dropping Spasmodic 12:18:10 Splashes Bulger 12:27:17 Water not visible Sawmill 12:37:52 >>>Eruption : d=41s,min Bulger 12:52:40 >>>Eruption : min Bulger 12:54:44 End Observations Other Event
In the evening there was another long series of Turban eruptions without there being a Turban Delay interval. During that time we saw a couple of Daisy eruptions and a nice tall and wide Oblong eruption. Two Turban intervals before the Grand eruption, we had what appeared to be an attempt at an eruption. That eruption was also short and weak. The next Turban interval after that was one where Grand had little to no overflow.
The Grand eruption started at about the last possible moment. It was two bursts, with the second burst starting with Grand's pool in the shadows. A faint rainbow was visible near the top of the water column, which shows how low the sun was. That burst also lasted almost 2-1/2 minutes, with much of that time taken up with Big Sawmill mode.
2024-Sep-04:19:16:01 T2*Q 19:15:31 Vent Ovfl -0m30s 19:15:35 Turban -0m26s 19:15:54 Boop -0m07s 19:16:01 B1 --- d=08m12s 19:18:31 Vent 2m29s 19:24:14 P1 8m12s d=37s 19:24:52 B2 8m50s d=02m24s 19:27:17 P2 11m15s 19:28:12 V&T Quit 12m10s ΣB=10m37s ΣD=11m15s * * * * * 16:12:24 d=03m23s 16:29:42 Int: 17m18s d=04m11s 16:49:41 Int: 19m59s d=04m22s 17:09:49 Int: 20m08s d=04m06s 17:28:50 Int: 19m01s d=04m11s 17:47:29 Int: 18m39s d=03m57s 18:06:59 Int: 19m30s d=03m52s 18:25:21 Int: 18m22s d=04m09s 18:42:44 Int: 17m22s d=03m16s 18:58:05 Int: 15m20s d=02m58s Turban: 17m30s