Saturday, July 21, 2018

Weather Discussion for Saturday July 21, 2018

Normal high and low temperatures for July 16-July 23  (high/low) Redding 99/67, Chico 975/61, Quincy 91/45, Chester 87/46, Susanville 90/52, Grass Valley 89/57, Weaverville 96/51, Mt. Shasta 86/52, Yreka 93/54, Alturas 90/46

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 satellite picture and forecast map below show 2 things.   First, a strong high pressure is over the western U.S. and will stay there for at least the next week.  Second, subtropical or monsoonal moisture is being pulled northward over California.  This moisture will cause isolated afternoon and evening thunderstorms over the mountains today.  The thunderstorms will be a little more widespread Sunday and Monday but still over the foothills and mountains.  The thunderstorms taper off Tuesday as the moisture is pushed eastward.  

Daytime temperatures will be a few degrees above normal today through Monday and then heat backup to 5 to 10 degrees above normal for the rest of next week. 

The Old Forecaster

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