[Geysers] Geysers Digest, Vol 2672, Issue 1

[Denise Herman]

The July 31 eruption of Steamboat was estimated at 200-300 feet high and
the water phase lasted for approximately 9 minutes

Denise Herman

On Sun, Aug 18, 2013 at 1:00 PM, <geysers-request at lists.wallawalla.edu>wrote:

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> Today's Topics:
>
>    1. Re: Norris & Steamboat datastream... (Michael Goldberg)
>    2. Re: Steamboat 7/31/13 @ 1940 (hi-plains at juno.com)
>    3. Re: Norris & Steamboat datastream... (Ralph Taylor)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 15 Aug 2013 20:55:37 -0400 (EDT)
> From: Michael Goldberg <goldbeml at ucmail.uc.edu>
> To: Geyser Observation Reports <geysers at lists.wallawalla.edu>
> Subject: Re: [Geysers] Norris & Steamboat datastream...
> Message-ID:
>         <alpine.OSX.2.00.1308152041380.68191 at ucfsb.ucfilespace.uc.edu>
> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
>
> I was curious about that temparature drop too.
>
> The cloudburst explanation makes the most sense to me; also it fits in
> with the prounounced spike in water flow at the Tantalus Creek stream
> gage: http://waterdata.usgs.gov/mt/nwis/uv?site_no=06036940
>
> As for Steamboat's long-period cycles of minor activity, I couldn't agree
> more with your assessment!
>
> Michael Goldberg
> Michael.Goldberg at uc.edu
>
> On Thu, 15 Aug 2013, Davis, Brian L. wrote:
>
> >
> >> The major eruption does not stick out as dramatically as one might
> expect.
> >
> > It doesn't... but there's some interesting things there anyway. A while
> > back I posted that Steamboat had a long-period (weakfish, more like 5
> > days currently I think) "envelope", with a resting or quiescent phase
> > every so often based on the stream temperatures. The major occurred on
> > the first active period just after one of these quiescent phases, which
> > may be significant, or a complete coincidence. If Steamboat would only
> > be kind enough to erupt in majors perhaps 10 more times, so that we
> > could determine the correlation, that would be fine, thank you :).
> >
> > I've been watching the graphs to see when it might start minor behavior
> > again (it hasn't apparently), an noticed something else odd - not at
> > Steamboat, but at nearly every other instrumented Norris spot, there was
> > a sudden temperature drop on the evening of 9 Aug. Porkchop, Opalescent
> > Spring, Constant, Echinus, all show this - but when I look at the Nuphar
> > Lake air temperature, there is *not* a huge drop (but there *is* a
> > drop... and there's a drop in the Vixen ground temperature, but later in
> > time than for the geyser runoff channels). Even things like the Gray
> > Lakes show this downward spike very clearly. So a question for those who
> > might know... was there one *heck* of a sudden downburst out there that
> > flooded everything with cold rainwater for a very brief time? And if so,
> > does it surprise anyone else that it shows up almost not at all at
> > Steamboat (where the channel sensor presumably has been dry or sitting
> > in a stagnant pool, and so I'd expect to see a strong response to a
> > sudden downburst of cold rain)?
> >
> > --
> > Brian Davis
> > _______________________________________________
> > Geysers mailing list
> > Geysers at lists.wallawalla.edu
> > 
> >
>
>
> ------------------------------
>
> Message: 2
> Date: Sat, 17 Aug 2013 16:00:03 GMT
> From: "hi-plains at juno.com" <hi-plains at juno.com>
> To: geysers at lists.wallawalla.edu
> Subject: Re: [Geysers] Steamboat 7/31/13 @ 1940
> Message-ID: <20130817.110003.28724.2 at webmail15.vgs.untd.com>
> Content-Type: text/plain; charset=windows-1252
>
> >> On Wed, 31 Jul 2013, David Monteith wrote:
> >> Not much info yet but Steamboat was seen by Rosa Prasser at 1940 on
> July 31, 2013
>
> Any info concerning height/duration, et al??
> ____________________________________________________________
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>
> ------------------------------
>
> Message: 3
> Date: Sat, 17 Aug 2013 01:47:07 -0400
> From: "Ralph Taylor" <ralpht at fuse.net>
> To: "'Geyser Observation Reports'" <geysers at lists.wallawalla.edu>
> Subject: Re: [Geysers] Norris & Steamboat datastream...
> Message-ID: <009401ce9b0d$35ff7fa0$a1fe7ee0$@fuse.net>
> Content-Type: text/plain;       charset="us-ascii"
>
> If the sensor is uncovered and exposed to the sun a pronounced diurnal
> cycle
> will be evident also.
>
> Ralph Taylor
>
> -----Original Message-----
> From: geysers-bounces at lists.wallawalla.edu
> [mailto:geysers-bounces at lists.wallawalla.edu] On Behalf Of Gordon Bower
> Sent: Thursday, August 15, 2013 6:34 PM
> To: Geyser Observation Reports
> Subject: Re: [Geysers] Norris & Steamboat datastream...
>
> Brian Davis wrote:
>
> > noticed something else odd - not at Steamboat, but at nearly every other
> instrumented Norris spot, there was a sudden temperature drop on the
> evening
> of 9 Aug. Porkchop, Opalescent Spring, Constant, Echinus, all show this -
> but when I look at the Nuphar Lake air temperature, there is *not* a huge
> drop (but there *is* a drop... and there's a drop in the Vixen ground
> temperature, but later in time than for the geyser runoff channels). Even
> things like the Gray Lakes show this downward spike very clearly. So a
> question for those who might know... was there one *heck* of a sudden
> downburst out there that flooded everything with cold rainwater for a very
> brief time?
>
> I was camping just outside the park, and there were several thunderstorms
> the afternoon and evening of the 9th. It is possible.
>
> >And if so, does it surprise anyone else that it shows up almost not at
> >all at Steamboat (where the channel sensor presumably has been dry or
> sitting in a stagnant pool, and so I'd expect to see a strong response to
>  a
> sudden downburst of cold rain)?
>
> The afternoon of the 10th, Steamboat's runoff channel was indeed dry, with
> rain puddles lingering in some of the deeper holes. It wasn't having minors
> yet, and Cistern Spring was still out of sight, boiling and sloshing.
>
> If the sensor is high and dry, it's only going to see a similar sized drop
> as the Nuphar Lake sensor as the air cools; if it's in a stagnant pool, the
> pool is already near air temperature, and perhaps already full of rainwater
> from an earlier shower. It doesn't have as far to drop as a sensor in a hot
> place does.
>
> Without knowing exactly where the sensor is, all we can do is speculate.
>
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> ------------------------------
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> End of Geysers Digest, Vol 2672, Issue 1
> ****************************************
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