Saturday, September 2, 2017

Weather Discussion for Saturday September 2, 2017

Normal high and low temperatures for Aug 28-Sept 4 (high/low)...Redding 95/61, Chico 93/57, Quincy 86/40, Chester 82/41, Susanville 84/46, Grass Valley 85/53, Weaverville 90/45, Mt. Shasta 82/46, Yreka 87/48, Alturas 84/39

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.

Sunny...smoky skies and hot temperatures again today with record or near record high temperatures.  The strong high pressure area continues over the western U.S. but some changes are coming.   Tropical storm Lidia is weakening over Baja. (see satellite picture below).  The remnants and moisture from this storm will be draw into the low pressure area that is currently west and north of Lidia.   This low will then be drawn slowly northward and will merge with a low pressure trough in the Gulf of Alaska about mid week (see map below).  This means cooler weather and increased chance of thunderstorms.  Sunday will be a couple of degrees cooler than today (still darn hot) with a chance of afternoon and evening thunderstorms over the Sierras south of Mt Lassen.  The cooling continues through Wednesday with temperatures by Wednesday 3 to 6 degrees above normal.  The thunderstorms will become more widespread with a chance of isolated thunderstorms in the valley Tuesday and Wednesday.

Thursday the temperatures will be normal to a few degrees above.  There will be a continue threat of afternoon and evening thunderstorms over the higher elevations.   Another weak upper level low pressure area is forecast off the north coast by Friday and next weekend.  This will keep temperatures near normal and increase the shower and thunderstorm activity. 

The Old Forecaster.

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