[Geysers] Giant geyser report August 30

[TSBryan at aol.com]

GIANT erupted at 1017 this morning and I dedicate this report to Sam  
Martinez. I also wish Theresa and Joe all the best.
 
On tour yesterday I was pretty much out of the loop, but my understanding  is 
that the Giant hot periods were all pretty weak. Longer ones lasted 6 to 7  
minutes and did include some bubbling in Cave Vent, but there was nothing of  
excitement until sometime last evening (I don't have the time). Then there was 
a  hot period that led everybody to believe that there would be an eruption. 
There  wasn't, but that in turn led some gazers to spend the night at the cage.
 
Also encouraging was the fact that Grotto (as of this morning) had had five  
consecutive short eruptions.
 
Anyhow, this morning I didn't get to Old Faithful until just before 0800.  
The sequence was:
 
0807, hot period d = 1m 03s
 
0904, Mastiff bathtub accompanied by zero Feather but a really strong  
eruption by the Southwest Vents (called a SW major by Herb).
 
1008, hot period start. Feather came on well after the SW Vents started,  and 
also after Mastiff started overflow. It was quickly joined by Satellite and  
Rust. Cave was visibly bubbling within a minute or so. All grew progressively  
stronger.
1011, Bijou on in loud steam phase, Mastiff still boiling and overflowing,  
all other vents still going.
1013, Cave suddenly erupting to 2 to 4 feet
1015, Mastiff dropped, Cave stopped but although Feather and Satellite  
almost quit, they didn't quite do so and then quickly came on strongly; Cave did  
not restart, but Posthole, Posthole Satellite and Emerald came on. Only then 
did  Giant begin signifcant surges.
1017 GIANT. Interval 5d 04h 49m. Duration ~104 minutes. Tara and I had  
nearly identical figures, that Giant truly started 9m 36s into the hot period.  
Chart attached.
 
Grotto Fountain started during Giant, at 1049 and Grotto very quickly  
followed at 1050. Grotto Fountain's duration was (for recent times)  extraordinarily 
short at less than 12 minutes.
 
Artemisia 0946ns.
 
Riverside 1130.
 
Daisy 0806 and 1036.
 
Oblong 0018, 0521, 0957.
 
Grand 1002 (T2--).
 
The only two Plume times I wrote down (0803 and 0912 gave an interval  of 69 
minutes.
 
Fountain was 0744ie as I drove in.
 
Scott Bryan



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