Saturday, December 30, 2017

Weather Discussion for Saturday December 30, 2017

Normal high and low temperatures for Dec 25-Jan 1  (high/low) Redding 53/35, Chico 53/34, Quincy 44/24, Chester 41/19, Susanville 40/21, Grass Valley 52/31, Weaverville 45/28, Mt. Shasta 41/28, Yreka 43/24, Alturas 41/16

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.

This morning's satellite picture (below) shows the high pressure area still over California.  You can see the low pressure troughs and frontal systems form in the Pacific, move eastward and then weaken and get shunted northward as they hit the high pressure ridge.  All we see out of these system is some mid and high clouds.  This weather pattern will continue through Tuesday.  During this time the north state will have partly cloudy to partly sunny skies with continued above normal temperatures.  Winds will be light.

The models are in agreement on a change in the weather pattern happening Wednesday as low pressure pressure through develops along the west coast and holds there through next weekend.  The map below is from the GFS or U.S. model and shows the flow across the Pacific weak and not organized.  The European model has a stronger wetter pattern by the end of next week.  At this time I expect partly cloudy to cloudy skies Wednesday through Saturday with periods of rain or showers.  Snow levels will be 6000 feet or higher. 

The Old Forecaster


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