Of course I spoke too soon and Grand had a 6-1/2 hr with West Triplet and Rift following. But the mid-day did fit the pattern. I didn't stick around to see if Rift started as I'd had enough of Mr. Look-At-Me-I'm-Standing-On-The-Bench-For-Two-Hours when he yelled out, over a minute after the end of the first burst, "the pool's refilling" when it obviously wasn't. (I realize now that I prefer tourons over geyser groupies.) The evening wasn't much better, because West Triplet and Rift erupted too early for Grand to join in, but at least Percolator never stopped. Oh, well. So much for speculating.
Finally got to see both Uncertain and Penta up close, although didn't see the start of the latter, and it was getting dark.
Observed several Giant hot periods up close, all short and weak. But one interval was less than 50 minutes. I don't know exactly because I was returning to wait for it only to find it in progress.
Castle seems to be having a number of "split major" eruptions, where there's a significant pause (up to 15 minutes) during the water phase, and it's confusing all the geyser groupies and NPS types who've never encountered it before.
Other Geyser Times
09 Jun 2007
- Grotto Ftn. 09:00ie, 12:46ie, 18:43ns
- Grotto 09:02, 12:46, 16:45
- Uncertain 11:32
- Rift 18:59 d=51m33s