Monday, August 17, 2020

Weather Discussion for Monday Aug. 16, 2020

Normal high/ low temperatures for Aug 17-Aug 24  (high/low) Redding 97/62, Chico 94/57, Quincy 87/41, Chester 83/43, Susanville 85/47, Grass Valley 86/54, Weaverville 92/47, Mt. Shasta 83/48, Yreka 89/51, Alturas 86/41

  
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 strong high pressure area is still over the western U.S.  The southerly flow around the westside of the high has tapped a good source of subtropical moisture and is pulling it northward over California.  The moisture mixed with the hot and unstable airmass over our area is triggering widespread thunderstorms.  The thunderstorms will continue today.  Tuesday the storms will be along and east of the Sierra Cascade Crest.  Gusty west to northwest winds will occur in some areas today and Tuesday.

The high looks like it will remain over the western U.S. for the next 7 to 10 days (see map below).  Wednesday and Thursday temperatures will be slightly above normal.  However, by the weekend and early next week we will see temperatures back to 5 to 10 degrees above normal.  It looks like another surge of subtropical moisture could be pulled northward late in the weekend or early next week.  

The Old Forecaster

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