Wednesday, February 21, 2018

Weather Discussion for Wednesday February 21, 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.

 A large high pressure ridge continues off the coast with the jetstream running from Northern Canada along the coast and then turning east as it reaches California.  This puts a very cold airmass over the west but the storms riding along the jetstream don't have much time over the water so their precipitation production is minimal.   All of the computer models indicate that the high will move back westward and this will result in low pressure areas spending more time over the ocean before reaching our area.  However, this change is not happening as fast as was indicated a few days ago.  

The next low pressure area is now along the Canadian coast this system will move through the north state Thursday.  This is another cold storm and will bring showers to the foothills and mountains with snow levels around 1000 feet.  Precipitation amounts will be light.  However, some areas around Redding could see a few snow flakes Thursday. 

Friday should be sunny and then Saturday the next cold but relatively dry low pressure trough clips the area with scattered snow flurries over the higher elevations.  Sunday we are back to clear and cool.   Monday and early Tuesday another storm moves through (see map below).  This system may be a little wetter with a few showers possible in the north end of the valley.  Snow levels will be 1000 to 1500 feet.   Wednesday and Thursday next week look sunny and cool. 

Gusty north winds will occur behind each storm system.

The Old Forecaster

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