Saturday, February 8, 2020

Weather Discussion for Saturday Feb. 8, 2020

Normal high/ low temperatures for Feb 3-Feb 10 (high/low) Redding 60/37, Chico 59/38, Quincy 50/26, Chester 48/23, Susanville 45/22, Grass Valley 55/34, Weaverville 53/29, Mt. Shasta 48/27, Yreka 49/26, Alturas 46/19
  
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

Ref the question about high pressure ridges in yesterday's comment section.   I will answer it later this morning in the comment section of today's blog.

This morning's satellite picture (below) shows a low pressure area over the Pacific Northwest with little or no moisture (clouds) with it.  This low will drop southward over Nevada and end up over Southern California by late Sunday.  The low will bring a few mid and high clouds to Northern California today.  Temperatures will be a few degrees above normal.  Gusty north winds will move into the area later today.  Sunday will be sunny and cooler with the strong and gusty north to northeast winds continuing. 

Monday through Saturday the high will still be off the coast.  Low pressure troughs will ride over the high and through western Canada (see map below).   The north state will be mostly sunny with a few high clouds from the systems moving by to our north.  Temperatures will be 5 to 10 degrees above normal.  Strong and gusty north winds will continue through midday Tuesday with light to moderate north winds the rest of the week.

The Old Forecaster

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control 

CALTRANS is working and their web pages.  Until I get a good URL.  Try this link  you will have to move the page to see our area. l

 Click on images below to enlarge them



1 comment:

  1. In the atmosphere there are semi permanent large scale pressure features....such as the Pacific high, Aleutian low, Hudson bay low, Bermuda high. The jetstream or storm track snakes around the northern hemisphere over the highs and around the bottom of the lows. Low pressure troughs and frontal systems ride along and to the north of the jetstream. These large scale features change in strength during the seasons and shift east and west. Example the high pressure ridge off the coast is now near the coast and strong. The jetstream goes over the top and drops into the western U.S. This brings relatively cold and dry systems into the western U.S. If the high moves back a little to the west the jetstream would drop from Alaska off the coast and across Northern California. This would be a cool but wetter pattern. If the high weakens the jetstream runs across the Pacific...over the high and into the west coast...a wet but not as cold pattern. Hope tihs explains some of you question.

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