[Geysers] Geyser report for August 13

[TSBryan at aol.com]

>From Scott Bryan August 14

By a combination of things, I didn't get around to posting yesterday's obs 
until today. Not that this is a big deal.

Following the four consecutive intervals of less than 4 days, Fan and Mortar 
guaranteed at 5+ day interval. After two very minor episodes of some Main Vent 
splashing during the morning hours, F&M finally had a good event cycle 
starting at about 13:00. But I'll leave out the details this time. There was no 
eruption. Overall, the cycle was shorter in duration than those of the past few 
days and from the start the water level in Fan's vents was poor.

Giant had two hot periods during the day. At about 6:45, lasting roughly 8 
minutes, was a post-marathon hot period. At 13:36 (during F&M's event cycle) was 
another hot period, unexpected, that lasted perhaps 4 minutes.

Grand had an interval of 6h 32m, 2 bursts (I was at Daisy)

I was at Daisy because up there I saw by far the strongest boiling and 
surging in Splendid that I've seen in a _long_ time. This was from the main vent, 
not the side boiler, and some surges were at least 3 feet high with heavy 
overflow. And they were sustained, lasting as long as 12 or 15 seconds. As I 
watched, I realized that Daisy was repeatedly trying to start, then stopped AND that 
each time that happened, the water level in Brilliant Pool obviously 
fluctuated, dropping maybe 2 inches when Daisy had a "false start." Daisy's interval 
was 2h 58m, and there was essentially no wind at all. So I wish I'd been up 
there for the next eruption. Did Brilliant-Splendid do anything? Did Daisy have 
false starts? Mind you, this is the very next interval under identical (except 
hotter air temperature) conditions, and the interval was just 2h 04m.

It is now confirmed that Plume quit, with the last observed eruption at 20:xx 
on the evening of Monday, August 9.

I apologize. My report the other day of Beehive at 15h 15m was incorrect; it 
was 13h 15m. Overnight 8/12-13, the interval was 16h 53m, Indicator of 19m.

Sometime between the morning of Wednesday, 8/11 and 08:00 on this day 8/13, 
the boiling action in (East) Sentinel Geyser shifted from the riverside vent to 
the hillside vent AND the marker was washed away.

Scott
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