Tuesday, January 10, 2012

A Perspective on the Snowpack

The Natural Resources Conservation Service (NRCS) web site has a nice page for snow that includes an analysis of SNOTEL sites with record or near record high and low snowpack snow water equivalents (SWE).  Here's the analysis for today.

Source: NRCS

Stations with more than 20 years of data are plotted.  20 years is not a long time for a true climatological analysis, but this gives us some perspective on the snowpack to date relative to the past two or three decades.  Sites with red dashes are at their lowest snowpack SWE for this date.  Blue means the 2nd lowest.

5 comments:

  1. Just checked Trial lake, I fish a lot in that area and it has all of 5 inches SWE. Could be a dry summer and very short river running if this keeps up.

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  2. Jim, is it looking any better today? In this afternoon's Forecaster Discussion the NWS-SLC wrote:

    "HIGH PRESSURE WILL BUILD OVER THE GREAT BASIN THIS WEEKEND...WITH
    MODELS HINTING AT A PATTERN CHANGE EARLY NEXT WEEK. BOTH THE GFS
    AND THE EC SHOW MOIST WESTERLY FLOW DEVELOPING EARLY NEXT
    WEEK. THE PATTERN DEPICTED IN THE EC IS MORE FAVORABLE FOR THE CWA
    WITH THE JET STREAM CLOSER TO THE FORECAST AREA. HOWEVER...THE 12Z
    GFS MOVED SLIGHTLY TOWARDS THE EC...GIVING SOME HOPE THAT THERE
    WILL BE A SHIFT TO A PATTERN MORE FAVORABLE FOR THE FORECAST AREA."

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  3. The operative phrase here is "giving some hope." I'm waiting to see more consistency in the model forecasts before getting excited for the Wasatch.

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  4. GFS has been looking good for the last 4 runs. I know that's only 24 hrs, but it seems like things are starting to line up. or perhaps i shouldn't say that for fear of jinxing it. never mind. Steve

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  5. This morning's operational model runs show some significant moisture impinging on the Intermountain West in the 7-10 day range. I feel like I haven't seen that since November. Fingers crossed.

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