Wednesday, September 28, 2016

Weather Discussion for Wednesday September 28, 2016

Normal high and low temperatures for Sept 26-Oct 3 (high/low)...Redding 85/55, Chico 87/52, Quincy 77/35, Chester 75/36, Susanville 74/40, Grass Valley 80/49, Weaverville 83/39, Mt. Shasta 73/42, Yreka 77/40, Alturas 75/33

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

Cooling trend to start today as the high pressure ridge that has been over our area begins to weaken. The low pressure trough, off the Canadian  Coast, shown on this morning's satellite picture (below) will slowly deepen, or push southward, along the west coast.   This low will be along the coast Saturday through Monday (see map below).

Thursday and Friday we will see mostly sunny skies with a few clouds Friday afternoon.  Temperatures will continue to cool.  Gusty south to southwest winds will occur Thursday and Friday afternoons.

Saturday the low will send a weak frontal system across the the north end of the state.   This system will trigger a few showers on the coastal and northern mountains.  Sunday the main portion of the low pressure area will be over Northern California and will bring periods of rain and showers over all of the north state.  Snow is possible above 7000 feet.  Monday the low will be moving eastward.   The showers will be decreasing and by afternoon will be confined to the foothills and mountains.  Tuesday the north state will be partly cloudy to partly sunny with a few showers possible over the northern mountains.   Wednesday a weak high pressure area will be back over the area with mostly sunny skies and near normal temperatures. 
  
The Old Forecaster

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Monday, September 26, 2016

Weather Discussion for Monday September 26, 2016

Normal high and low temperatures for Sept 26-Oct 3 (high/low)...Redding 85/55, Chico 87/52, Quincy 77/35, Chester 75/36, Susanville 74/40, Grass Valley 80/49, Weaverville 83/39, Mt. Shasta 73/42, Yreka 77/40, Alturas 75/33

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

Another hot day for Northern California as a strong high pressure area continues along and over the west coast.  Temperatures will be 10 to 15 degrees above normal with light winds.  Tuesday the high pressure ridge will begin to weaken.  Tuesday through Thursday we will see a cooling trend with temperatures back to near normal by Thursday.  Winds will be light Tuesday and Wednesday with increasing south winds Thursday afternoon.

Friday and Saturday a low pressure trough will be along the west coast. (see map below).  Like the last systems this trough will bring cooler air and gusty winds to the north state.  However, it looks like it will be a little further west than last weeks trough.   This means it will probably have a little more moisture associated with it.  There will be scattered showers over the higher elevations Friday afternoon and Saturday, with a slight chance of showers in the north end of the valley.  Gusty southwest winds will occur Friday and gusty southwest to northwest winds on Friday.  Sunday the low will be moving eastward there could still be a few showers over the northern and eastern mountains Sunday morning but they will end by afternoon.

High pressure will be back along the coast early next week.
  
The Old Forecaster

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Saturday, September 24, 2016

Weather Discussion for Saturday September 24, 2016

Normal high and low temperatures for Sept 19-Sept 26 (high/low)...Redding 90/55, Chico 88/52, Quincy 80/36, Chester 75/37, Susanville 76/41, Grass Valley 80/49, Weaverville 84/40, Mt. Shasta 76/42, Yreka 80/41, Alturas 77/35

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 rebuilding along the west coast.   Today the inland areas of Northern California will be mostly sunny with warmer temperatures and light to moderate northerly winds.  Sunday through Tuesday the high pressure area will be over the west coast.   Skies will be mostly clear with temperatures 10 to 15 degrees above normal.  Gusty northeast winds will occur in some areas Sunday.   

Wednesday temperatures will begin to cool as the high weakens.   Thursday a low pressure trough will be approaching the Pacific Northwest (see map below).  This system will move inland late Thursday and Friday with the southern end brushing across the north end of the state.  We will see a few clouds from this system with showers possible in the far north.   Temperatures will drop to below normal by Friday.  Gusty southwest winds will precede this system.   The trough will be east of our area by Saturday afternoon.   Sunday and early next week high pressure will be back along the west coast and we will be back to clear skies and normal or slightly above temperatures.
  
The Old Forecaster

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Wednesday, September 21, 2016

Weather Discussion for Wednesday September 21, 2016

Normal high and low temperatures for Sept 19-Sept 26 (high/low)...Redding 90/55, Chico 88/52, Quincy 80/36, Chester 75/37, Susanville 76/41, Grass Valley 80/49, Weaverville 84/40, Mt. Shasta 76/42, Yreka 80/41, Alturas 77/35

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

The low pressure area is now off the coast and will move across Northern California later today and early Thursday.  This system will bring cooler air into the north state, but doesn't have a lot of moisture associated with it.  Today through midday Thursday the areas north and east of the valley (Siskiyou, Modoc, higher elevations of Shasta, Lassen, Plumas, and Nevada) will be party cloudy with a few light showers and possible thunderstorms.  There is a slight chance one of these showers moving over the valley north of Chico.   The rest of the north state will be partly to mostly sunny.   Gusty west to northwest will occur today and Thursday.  

The low will be east of our area by late Thursday.   Friday high pressure will begin to rebuild along the coast.  However, there will be a frontal system moving into the Pacific Northwest.   Friday the areas north of Redding will be partly cloudy to cloudy with a chance of showers on the north coast and near the Oregon border.   The rest of the area will be sunny and warmer. 

Saturday through early next week a strong high pressure area will be over the west coast. (see map below).   The north state will be sunny with temperatures 10 to 15 degrees above normal Monday and Tuesday.  Gusty north winds are expected late Friday through Sunday afternoon.  

Late next week the high will weaken as another low pressure trough moves into the Pacific Northwest.  This will allow temperatures to drop back to near normal.
  
The Old Forecaster

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Monday, September 19, 2016

Weather Discussion for Monday September 19, 2016

Normal high and low temperatures for Sept 19-Sept 26 (high/low)...Redding 90/55, Chico 88/52, Quincy 80/36, Chester 75/37, Susanville 76/41, Grass Valley 80/49, Weaverville 84/40, Mt. Shasta 76/42, Yreka 80/41, Alturas 77/35

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 off the coast and today will be mostly sunny with above normal temperatures.  Light to moderate south to southwest winds will occur this afternoon.

Starting Tuesday things begin to change.  The low pressure area shown on this morning's satellite picture (below) will continue dropping slowly southward.  Tuesday we will still be sunny but temperatures will begin to cool and the southwest winds will increase in the afternoon.

Wednesday afternoon and Thursday the low will be over Northern California. (see map below).  The north state will be partly cloudy with scattered showers over Siskiyou, higher elevations of Shasta, Modoc, Lassen, Plumas, and Nevada counties, with a slight chance of showers moving down into valley north of Chico.  Temperatures will be much cooler with snow levels 6500 to 7000 feet.  Gusty southwest to northwest winds are expected.  The thing that could make this a wetter storm is what is occurring over the far south end of the state.  There is a low pressure area this morning off the Southern California coast and it is pulling moisture northward from Hurricane Paine.   This increased moisture will bring showers and thunderstorms to southern California.  The moisture will move northward but the southwest flow associated with the Northern California low is expected to push it eastward before it reaches Tahoe.  If the Northern California low moves a little slower or is a little further to the west then we could see some of this moisture make it to the north state.

Friday the low will be to our east.   There will still be a few clouds over the far north end of the state, but the rest of the area will be sunny.   Saturday through much of next week high pressure is back over the area.  Temperatures will be back above normal by the weekend and stay there through most of next week.  Gusty north winds are expected Saturday and Sunday.
  
The Old Forecaster

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Saturday, September 17, 2016

Weather Discussion for Saturday September 17, 2016

Normal high and low temperatures for Sept 12-Sept 19 (high/low)...Redding 90/58, Chico 89/54, Quincy 81/37, Chester 76/38, Susanville 77/43, Grass Valley 80/50, Weaverville 84/42, Mt. Shasta 77/43, Yreka 82/44, Alturas 79/35

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 off the coast.  However, the satellite picture below shows that a series of frontal systems are riding over the high and into the Pacific Northwest.  Today and Sunday Northern California will see a few mid and high clouds from the systems to the north.  Temperatures will continue above normal and winds will be light.  Monday and Tuesday the northstate will be sunny with slightly cooler temperatures.  Increasing south winds are expected Tuesday afternoon. 

Wednesday another low pressure area will break off and drop over the Pacific Northwest and linger there through Thursday.  (see map below).  Like the last one this system will have limited moisture but will bring cooler air into the north state.  Wednesday and early Thursday we will see partly cloudy to partly sunny skies with a few showers over the higher elevations north and east of the valley.   Temperatures will cool to a few degrees below normal.   Gusty southwest to northwest wind are expected Wednesday with strong gusty north winds Thursday.  

Friday through the weekend the low will be to our east and high pressure will be along the coast.   Skies will be mostly clear with temperatures back to above normal by the weekend.   The gusty north winds will continue through early Saturday.  
  
The Old Forecaster

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Wednesday, September 14, 2016

Weather Discussion for Wednesday September 14, 2016

Normal high and low temperatures for Sept 12-Sept 19 (high/low)...Redding 90/58, Chico 89/54, Quincy 81/37, Chester 76/38, Susanville 77/43, Grass Valley 80/50, Weaverville 84/42, Mt. Shasta 77/43, Yreka 82/44, Alturas 79/35

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

The low pressure area is now well to our east and high pressure is back along the west coast.   Today through Saturday the inland areas of the north state will be mostly clear with temperatures warming to 5 to 10 degrees above normal by Saturday.  Winds will be light.  

Late Sunday the high pressure area will weaken as a low pressure trough approaches the Pacific Northwest. (see map below).  This southern end of this system will bring some clouds to the north state, late Sunday and Monday, with a few light showers on the north coast and across Siskiyou and Modoc counties.  Gusty south winds will precede this system. 

The trough is east of our area by Tuesday and high pressure will be back along the coast.   Tuesday through Thursday we will have sunny skies with temperatures back to normal or slightly above.  Gusty north winds will occur Tuesday and Wednesday.
  
The Old Forecaster

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