Monday, February 19, 2018

Weather Discussion for Monday February 19, 2018

Normal high and low temperatures for Feb 18-Feb 25  (high/low) Redding 61/40, Chico 62/39, Quincy 52/27, Chester 47/23, Susanville 47/25, Grass Valley 55/34, Weaverville 56/30, Mt. Shasta 49/ 29, Yreka 53/28, Alturas 47/22

This blog will be issued every Monday, Wednesday, and Saturday morning and updated if the weather is changing or critical or interesting weather events are occurring.

 The low pressure trough that brought light showers and snow flurries to the foothills and mountains yesterday is now moving eastward.  There will still be a few snow flurries over the mountains today but they will end by afternoon.   The low has brought a very cold airmass over the north state and tonight and Tuesday night will be very cold especially in the wind sheltered valleys.  Some north valley areas will be in the mid 20s.  Strong gusty north winds will occur today. 

Tuesday we will have partly sunny to partly cloudy skies with a snow flurry possible over the higher elevations.  Late Wednesday and Thursday another low pressure area will drop southeastward along the coast and then move into the Great Basin.  Like the last storm this system will not be over the water long enough to pickup much moisture so expect just a few mountain showers.  Snow levels will be low around 2000 feet. Friday and most of Saturday we will have mostly sunny skies with cool temperatures. 

We may finally see a change late Saturday and Sunday.  The past several storms have hugged the Canadian coast and then moved east.  The map below for Saturday shows the jetstream shifting a little westward.  This allows the low pressure area to come off the Alaskan coast and over the ocean before reaching Northern California.  This would mean the Sunday and Monday storm would still be cold but wetter.  

The Old Forecaster

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