[Geysers] Satellite Image - mysterious steam of

[Mike Keller]

I have said this for years on here, but here it is again:

 

In the winter months steam clouds are exaggerated to what is normally seen
in the spring/summer/fall.  Having spent around 20 winters at Old Faithful
this looks like any large, cold morning steam cloud you get over Biscuit
Basin or Midway Basin.  It isn't a single geyser erupting-on days when the
outside temp gets to zero or lower, Lion Geyser can have a 500 foot steam
cloud when it is dead calm-Giant, Grand, and Castle are considerably bigger.
I have been in the LGB when Fountain or Great Fountain erupt just before the
sun rises or just after the sun sets, and it goes from clear visibility to
thick geyser fog covering an area of 2+ miles, usually socking in the entire
LGB.  I'm sure any of the winter guides that are on here have experienced
the same phenomenon.

 

More to the point-after the "mystery steam could" appeared, none of the
guides or NPS folks have suddenly found a new geyser, geyser basin, or
hydrothermal explosion area.  This is just normal winter steam/inversion
clouds that appear over thermal areas.

 

MK

 

-----Original Message-----
From: geysers-bounces at lists.wallawalla.edu
[mailto:geysers-bounces at lists.wallawalla.edu] On Behalf Of Wayne Simister
Sent: Tuesday, December 29, 2009 1:09 PM
To: Geyser Observation Reports
Subject: [Geysers] Satellite Image - mysterious steam of 

 

Here's a satellite image showing a yellow line leading from the Old Faithful
web cam to the Midway Geyser basin (Grand Prismatic/Excelsior).  The Midway
geyser group would lie approximately behind Old Faithful's steam.  So the
large steam cloud which lies to the left of  Old Faithful in the web cam
image of Dec. 27th is still a mystery.  



Yellow Line is line of sight from Old Faithful to Midway Geyser Basin's
Excelsior Geyser

Yellow dot is the location of Grotto Geyser.  The magenta dot is Solitary
Geyser.

Wayne Simister
wsimister at q.com








-----------------------------------

Anyone have a guess what the big steam cloud is. I don't know how long it
had been there but it was gone (covered up by the fog) about 5 minutes
later.

 

L C Daugherty

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