Weather Discussion; The Old Forecaster

Chris Fontana, "The Old Forecaster" 4/16/2014

Normal high and low temperatures for this week April 14-April 20 (high/low)...Redding/Red Bluff 70/47, Chico 73/44, Quincy 64/32, Chester 57/28, Susanville 62/34, Grass Valley 61/39, Weaverville 67/35, Mt. Shasta 59/34, Yreka 64/34 and Alturas 60/30.

High pressure continues along the west coast.    However, it will slowly weaken over the next several days as low pressure troughs and frontal systems ride over the top of it.  
These systems will slowly erode the the high pressure area and push it southward.  This means that each system will be stronger than the previous.  
Today we will be sunny with continued above normal temperatures with gusty north winds in the north valley.  
Thursday afternoon and early Friday a low pressure trough and frontal system will push through the north state.  This system will bring partly cloudy skies to our areas with showers and possible thunderstorms on the north coast and across Siskiyou, northern Trinity, and Modoc counties with isolated showers and thunderstorms over Lassen and Plumas counties.

Friday through the weekend the north state will be mostly sunny with a few  mid and high clouds.   Temperatures will be 3 to 8 degrees above normal.

Monday a stronger low pressure trough moves toward the coast.  This system will push the high pressure area to the east and south and will move across Northern California late Monday and Tuesday.  
Clouds will increase Monday with showers and possible thunderstorms late Monday and Tuesday.  Snow levels in the heavier showers Tuesday will be 4000 to 4500 feet.   Gusty south winds will occur Monday and early Tuesday.




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