Saturday, September 30, 2017

Weather Discussion for Saturday September 30, 2017

Normal high and low temperatures for Sept 25-Oct 2  (high/low)...Redding 88/55, Chico 86/52, Quincy 78/34, Chester 75/35, Susanville 74/40, Grass Valley 79/48, Weaverville 83/38, Mt. Shasta 75/44, Yreka 78/41, Alturas 76/32

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.

When I wrote the Wednesday blog it looked like we would see a couple of low pressure troughs drop southward along the coast and then over Northern California.  It now looks like that storm track will be a couple of hundred miles to the east.  This will make a big difference.   Instead of clouds a maybe a few showers we will now have partly to mostly sunny skies and strong northeast to east winds. 

This morning's satellite picture (below) shows a low pressure trough just off the Canadian Coast.  This low will drop southeastward and into Nevada Sunday afternoon and early Monday.  It will be followed by another system Tuesday and early Wednesday, which will also end up over Nevada (see map below).  Each of these systems will bring a few clouds and a chance of an isolated shower to the higher elevations north and east of the valley, with mostly clear skies elsewhere.  Temperatures today will be near normal and will cool to 3 to 7 degrees below normal early next week.  The main feature of these systems will be periods of very strong and gusty northeast to east winds Sunday through Wednesday.  

Thursday through next weekend high pressure will be back along the coast for mostly clear skies...above normal temperatures...and light wind.

The Old Forecaster.

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