Thursday, February 25, 2021

Last Storm of Winter...

Thought that headline might get your attention.

Meteorological winter covers December, January, and February and ends this Sunday, the last day of February.  Thus, the last storm of meteorological winter will be this Friday night and Saturday as a broad trough moves through northern Utah from the northwest.  Below is the GFS forecast for 0600 UTC 27 February (11 PM MST Friday) showing northern Utah in the moist, unstable flow.  

The time-height section for Salt Lake City shows this is a storm cycle that's a bit less organized and less juicy than last week's.  There's a weak trough passage late Thursday night/early Friday Morning and then another late Friday night/Saturday morning, followed by a moist post-frontal period.  

The GFS generates a total of 13.5 inches for Alta between 1 AM MST Friday through 7 PM MST Saturday night, the NAM 7.7 inches.  The SREF mean is around GFS levels, with about 0.75 inches of water and 12 inches of snow.  

Thus, this looks more like a Goldilocks storm than last-week's monster, although it will come in pieces.  

Enjoy this last storm of meteorological winter.  If you haven't noticed, the sun is getting higher and the days longer. 

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