Monday, August 29, 2016

Weather Discussion for Monday August 29, 2016

Normal high and low temperatures for Aug 29-Sept 5 (high/low)...Redding 95/61, Chico 93/57, Quincy 86/39, Chester 82/41, Susanville 84/47, Grass Valley 85/53, Weaverville 91/45, Mt. Shasta 82/46, Yreka 87/48, Alturas 84/39

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.
   
This morning's satellite picture (below) shows the low pressure trough off the Canadian coast developing.  It also shows moisture from Hurricane Madeline is being pulled northeastward over Northern California.  The low pressure trough will continue to deepen southward and will be along the coast through Thursday (see map below).  However, we still have a very dry airmass over the north state...so while the sat picture and map look promising I am not expecting a lot of rain.  

Today will be partly cloudy to partly sunny with temperatures a little cooler.  Gusty south winds will occur this afternoon.  Tuesday we see partly cloudy skies with a few showers and thunderstorms over Trinity, Siskiyou, Shasta, Modoc, and Lassen counties.  There is a slight chance of showers in the valley north of Red Bluff.  Temperatures will cool and gusty south winds will occur in the afternoon.

Wednesday and Thursday there will still be few clouds over the higher elevations north of Redding with isolated light showers possible.   The rest of the north state will be partly to mostly sunny with temperatures 5 to 10 degrees below normal.  Light to moderate south to southwest winds will occur in the afternoons.

Friday the trough shifts eastward.   Friday through the weekend we will be sunny with temperatures back to near normal by Sunday.   Gusty north winds are expected. 
  
The Old Forecaster

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Saturday, August 27, 2016

Weather Discussion for Saturday August 27, 3016

Normal high and low temperatures for Aug 22-Aug 29 (high/low)...Redding 96/62, Chico 93/58, Quincy 86/41, Chester 82/41, Susanville 85/48, Grass Valley 85/53, Weaverville 91/46, Mt. Shasta 82/46, Yreka 88/49, Alturas 86/41

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

Well finally some changes in the weather to talk about.   High pressure is still along the coast and today and Sunday the inland areas of Northern California will be sunny with temperatures near to slightly above normal.  Winds will be light.   

Monday the high will shift westward as a low pressure trough begins to deepen along the west coast.  This trough will be along the coast through Wednesday (see map below).   Clouds will begin to increase Monday...Tuesday and Wednesday the north state will be partly cloudy to partly sunny with scattered showers and thunderstorms over the coastal mountains north of Clear Lake, the areas north of Redding, and the Sierra/Cascades from Plumas county northward.   There is a chance of showers and thunderstorms in the valley from Chio northward. Temperatures will cool to 10 to 15 degrees below normal by Wednesday.  Gusty south winds will occur Monday and Tuesday afternoons with gusty southwest to northwest winds Wednesday,

The trough will be just to our east Friday and Saturday.  Skies will be mostly sunny except for lingering clouds over the northern mountains. Temperatures will be below normal with gusty north to northwest winds.   
  
The Old Forecaster

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Wednesday, August 24, 2016

Weather Discussion for Wednesday August 24, 2016

Normal high and low temperatures for Aug 22-Aug 29 (high/low)...Redding 96/62, Chico 93/58, Quincy 86/41, Chester 82/41, Susanville 85/48, Grass Valley 85/53, Weaverville 91/46, Mt. Shasta 82/46, Yreka 88/49, Alturas 86/41

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

The dog days of summer continue.   High pressure is just off the coast.   The inland areas of Northern California will continue to see sunny skies with temperatures normal to 5 degrees above normal through Saturday.   Winds will be light nights and mornings and south to southwest in the afternoon. 

The high will weaken a little this weekend as a low pressure area moves into western Canada. (see map below).  We will continue to see mostly clear skies but temperatures will cool a few degrees Sunday and Monday. 
  
The Old Forecaster

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Monday, August 22, 2016

Weather Discussion for Monday August 22, 2016

Normal high and low temperatures for Aug 22-Aug 29 (high/low)...Redding 96/62, Chico 93/58, Quincy 86/41, Chester 82/41, Susanville 85/48, Grass Valley 85/53, Weaverville 91/46, Mt. Shasta 82/46, Yreka 88/49, Alturas 86/41

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

High pressure continues just off the the coast.  The morning's satellite picture shows a low pressure area moving through western Canada.   This low is well to our north but will turn the winds aloft more westerly.  This will push the sub tropical moisture that has trigger afternoon thunderstorms over the Sierras eastward.  Today will be mostly sunny with a few clouds, and isolated thunderstorms, along the Sierras south of Mt. Lassen.  Temperatures will be about like yesterday or a couple of degrees cooler.

Tuesday through the weekend high pressure will continue just off the coast.  (see map below).   The northstate will be mostly sunny with temperatures 2 to 5 degrees above normal.  Winds will be light.
  
The Old Forecaster

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Saturday, August 20, 2016

Weather Discussion for Saturday August 20, 2016

Normal high and low temperatures for Aug 15-Aug 22 (high/low)...Redding 96/62, Chico 94/58, Quincy 88/42, Chester 84/43, Susanville 86/48, Grass Valley 85/54, Weaverville 93/47, Mt. Shasta 84/48, Yreka 89/50, Alturas 86/41

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

High pressure is just off the coast.   The weak upper level low pressure area is to our south and has split apart the main portion is over Arizona and moving east.   However, a weaker portion is off the Southern California coast and will push some sub tropical moisture northward through Monday.   Today the north will be mostly sunny with some afternoon cumulus over the mountains, with a chance of isolated thunderstorms along the Sierra crest from Plumas county southward.  Temperatures will be a little hotter than yesterday with light to moderate south winds winds in the afternoon.  Sunday and Monday the north state will see a few more clouds with the chance of thunderstorms over the higher elevations east of the valley and also Siskiyou and Trinity counties.  Temperatures will cool a few degrees each day.  Afternoon south winds will continue.

Tuesday high pressure begins to rebuild along the coast.  Tuesday through the weekend the inland areas of the north state will be mostly sunny.  Temperatures Tuesday will be just above normal but will be hotter Wednesday through the end of the week. (see map below)
  
The Old Forecaster

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Wednesday, August 17, 2016

Weather Discussion for Wednesday August 17, 2016

Normal high and low temperatures for Aug 15-Aug 22 (high/low)...Redding 96/62, Chico 94/58, Quincy 88/42, Chester 84/43, Susanville 86/48, Grass Valley 85/54, Weaverville 93/47, Mt. Shasta 84/48, Yreka 89/50, Alturas 86/41

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

High pressure is still just off the coast and should stay there for the next week.   There is a weak upper level low pressure system over Northern California.  A portion of this system will move slowly southward and be over Southern California by Friday and then move eastward over the weekend. Overall the north state will be sunny but the low will trigger afternoon cumulus clouds and a few thunderstorms over the higher elevations through Friday.  Daytime temperatures over the inland areas will continue 5 to 10 degrees above normal.  Sunday and Monday we might cool a few degrees but temperatures will still be above normal.   Winds will be light except gusty near the thunderstorms.  

The short version continued hot with some afternoon and evening thunderstorms over the mountains.   Those of us in the north end of the valley could see another week of over 100 degree readings.

The Old Forecaster

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Monday, August 15, 2016

Weather Discussion for Monday August 15, 2016

Normal high and low temperatures for Aug 15-Aug 22 (high/low)...Redding 96/62, Chico 94/58, Quincy 88/42, Chester 84/43, Susanville 86/48, Grass Valley 85/54, Weaverville 93/47, Mt. Shasta 84/48, Yreka 89/50, Alturas 86/41

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

A strong high pressure ridge is along and just off the west coast.   We will continue to see temperatures 5 to 10 degrees above normal for the next week.  However, "the fly in the ointment" is the weak upper level low that is shown on this morning's satellite picture (below) out to our west.   This weak low will move slowly eastward and be over Northern California Tuesday and then drop southward and end up off the Southern California coast by the end of the week (see map below).  The exact track and timing of this low will determine how much if any sub tropical moisture it will pull northward.  At this time expect to see mostly sunny skies continue through the week with afternoon cumulus clouds over the mountains and a chance of isolated thunderstorms Tuesday through Friday.   Winds will be light except gusty near the thunderstorms. 

The Old Forecaster

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