Saturday, December 3, 2016

Weather Discussion for Saturday December 3, 2016

Normal high and low temperatures for Nov 28-Dec 5 (high/low)...Redding 58/38, Chico 59/37, Quincy 49/26, Chester 45/24, Susanville 46/25, Grass Valley 56/33, Weaverville 50/30, Mt. Shasta 47/27, Yreka 48/27, Alturas 47/20

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 along the coast.   Today we will see sunny skies and near or slightly above normal temperatures.  Gusty north winds will continue in some areas.  Sunday the high will move back a little to the west.  This will allow a couple of weak frontal systems to clip the north end of the state.  The first will move through Sunday afternoon and evening, with another system on Monday afternoon and early Tuesday.  These systems will bring a few light showers to the north coast, mountains north of Redding and Sierra Cascades north of Mt Lassen.   Snow levels Sunday will be 4000 to 5000 feet but drop to 2500 to 3000 feet Tuesday.   The rest of the north state will stay partly to mostly sunny Sunday and Monday.

Monday night and especially Tuesday night we will see cold temperatures with some areas of the north valley dropping below freezing.  

Wednesday will be sunny with slightly above normal temperatures.   Clouds will begin to increase Wednesday night as the high pressure ridge weakens and allows the jetstream to drop southward.  A weak frontal system will bring light precipitation to the north state Thursday and this will be followed by a stronger system to Friday and early Saturday.   This system will bring moderate precipitation to all of Northern California.  Snow levels will be 4000 to 5000 feet but locally lower in some areas north of Redding due to trapped cold air.

The Old Forecaster

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Wednesday, November 30, 2016

Weather Discussion for Wednesday November 30, 2016

Normal high and low temperatures for Nov 28-Dec 5 (high/low)...Redding 58/38, Chico 59/37, Quincy 49/26, Chester 45/24, Susanville 46/25, Grass Valley 56/33, Weaverville 50/30, Mt. Shasta 47/27, Yreka 48/27, Alturas 47/20

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

A weak low pressure trough and frontal system are now moving across Northern California.  Most precipitation has been over the higher elevations with a few light showers in the valley.   Snow levels are around 4000 feet.  Skies will be clearing later today as the low moves into Nevada and drops southward.    Thursday and Friday high pressure will be along the coast with a low pressure area over the southwestern U.S.   The northstate will be mostly sunny with gusty north to northeast winds and normal temperatures.  

The offshore high pressure ridge will move back to the west Saturday.  Sunday through Tuesday we will be under a pattern like the one shown on the map below.   While the jetstream is over or south of our area it is dropping from north to south and storms moving along it won't have a chance to pickup much moisture.   Clouds will increase Saturday with a weak storm late Saturday and Sunday.  Precipitation amounts will be light with snow levels 3000 to 4000 feet.   A slightly stronger system will move through Sunday night and Monday.  This will be a colder storm with snow levels 2000 to 3000 feet.   

There will be a break Tuesday and then a stronger frontal system will move in from the west Wednesday.

The Old Forecaster

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Monday, November 28, 2016

Weather Discussion for Monday November 28, 2016

Normal high and low temperatures for Nov 28-Dec 5 (high/low)...Redding 58/38, Chico 59/37, Quincy 49/26, Chester 45/24, Susanville 46/25, Grass Valley 56/33, Weaverville 50/30, Mt. Shasta 47/27, Yreka 48/27, Alturas 47/20

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 trough continues to move slowly to our east while high pressure builds along the coast.   Clouds will be decreasing during the day but there will be a few light showers over the higher elevations until late afternoon.   Tuesday we will see mostly sunny skies with near normal temperatures and light winds.  '
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Wednesday a low pressure trough will move over the off shore high pressure ridge and drop southward into Nevada and the Southwestern U.S.   Wednesday and early Thursday the north state will be partly cloudy with a few light showers mainly over the coast, and coastal and northern mountains, with the chance of sprinkle elsewhere.

Thursday afternoon through Saturday a strong high pressure ridge will be along the coast with a low pressure area over the southwestern U.S. (see map below).   Northern California will be caught between the two and will have mostly sunny skies with strong gusty north to northeast winds.   Temperatures will be normal or slightly above.

Sunday a low pressure trough will weaken the high and move into the Pacific Northwest.  This system will bring clouds to the north state with a chance of light rain over the higher elevations and the north end of the valley.

The Old Forecaster

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Saturday, November 26, 2016

Weather Discussion for Saturday November 26, 2016

Normal high and low temperatures for Nov 21-Nov 28 (high/low)...Redding 59/38, Chico 61/37, Quincy 52/26, Chester 47/25, Susanville 49/26, Grass Valley 57/33, Weaverville 52/30, Mt. Shasta 47/27, Yreka 49/27, Alturas 48/20

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 trough is now just off the coast and moving slowly eastward.   Today Northern California will have rain with the snow levels lowering to 3000 feet in the north and 4000 feet south.  Gusty south winds will occur in some areas.   Sunday and Monday the precipitation turns to showers and will be mainly over the foothills and mountains, with partly cloudy to partly sunny skies in the valley.  Snow levels will still be near 3000 feet.  

Tuesday and Wednesday the trough will be east of our area and high pressure will begin to rebuild along the coast. (see map below).   Tuesday and most of Wednesday we will see mostly clear skies and temperatures will be normal of a few degrees above.  Late Wednesday and Thursday we will see a few clouds as a low pressure area moves by to our north and drops southward into Nevada.  

Thursday through the weekend high pressure will be along the coast with a low pressure area over Nevada and the Southwest U.S.   The north state will be sunny with gusty north to northeast winds. 

The Old Forecaster

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Wednesday, November 23, 2016

Weather Discussion for Wednesday November 23, 2016

Normal high and low temperatures for Nov 21-Nov 28 (high/low)...Redding 59/38, Chico 61/37, Quincy 52/26, Chester 47/25, Susanville 49/26, Grass Valley 57/33, Weaverville 52/30, Mt. Shasta 47/27, Yreka 49/27, Alturas 48/20

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

Showers will be ending during the day as the low pressure trough over the area moves eastward.   Snow levels are down to 3000 feet north and 4000 feet south.  The next low pressure trough and frontal system will move through the Thursday afternoon and Friday.  This system now looks a little weaker than earlier forecast.   Expect rain to spread over the area late Thursday and Friday.  Snow levels will be around 4000 feet.

A stronger low pressure area will move slowly across Northern California Friday night and Saturday, with periods of rain...snow levels will be 3000 to 3500 feet. (see map below),  Gusty south winds will occur late Friday and Saturday.   The precipitation turns to showers Sunday morning and then ends by afternoon and evening.

There will be a break between systems and then another storm will move into the area late Tuesday and Wednesday.  

The Old Forecaster

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Monday, November 21, 2016

Weather Discussion for Monday November 21, 2016

Normal high and low temperatures for Nov 21-Nov 28 (high/low)...Redding 59/38, Chico 61/37, Quincy 52/26, Chester 47/25, Susanville 49/26, Grass Valley 57/33, Weaverville 52/30, Mt. Shasta 47/27, Yreka 49/27, Alturas 48/20

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 trough that was off the coast is now moving eastward.   Today there will still be isolated showers over the higher elevations with partly sunny to sunny skies over the valley.

We will continue to see low pressure troughs and frontal systems pass across our area ever 2 to 3 days for the next 7 to 10 days.   The next system will move across the north state late Tuesday and early Wednesday.  Precipitation will start Tuesday afternoon and continue through Wednesday afternoon.   This system won't be a major precipitation producer but will drop snow levels to 3500 feet north and 4500 feet south.

There will be a short break between systems late Wednesday and Thursday.   A stronger low pressure trough  will be along the west coast Thursday afternoon through Friday (see map below).  Precipitation will start Thursday afternoon and continue through Friday.   The rain and snow will be moderate to heavy at times late Thursday and early Friday.   Snow levels will be 4500 to 5500 feet.  Gusty south winds will occur Thursday afternoon and Friday.

Another brief break will occur Saturday and then another low pressure trough will move through Saturday night and Sunday. 

The Old Forecaster

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Saturday, November 19, 2016

Weather Discussion for Saturday November 19, 2016

Normal high and low temperatures for Nov 14-Nov 21 (high/low)...Redding 63/40, Chico 64/39, Quincy 53/29, Chester 48/25, Susanville 50/29, Grass Valley 59/36, Weaverville 55/32, Mt. Shasta 49/30, Yreka 52/29, Alturas 50/23

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

A low pressure area is off the coast and will send bands of clouds and precipitation across Northern California today and Sunday.  Today and Sunday we will see periods of rain, heavy at times.   Snow levels this morning are down to 3000 feet in the north and higher as you go southward.   Snow levels will rise to 4500 to 5000 feet later today and Sunday.  Gusty south winds will occur in some areas today.  Monday the low pressure area will move eastward.   The valley will see partly cloudy to partly sunny skies Monday but there will be a few lingering showers over the higher elevations Monday. 

Late Tuesday and Wednesday a weak frontal system will move across the north state with clouds and light rain or showers.  Snow levels will be 5000 to 6000 feet.  Thursday afternoon and Friday a stronger storm system will move through the area with more rain. (see map below).  Snow levels Thursday afternoon will be 4000 feet north and 5500 feet south.   Another storm system will move through the area Saturday afternoon and Sunday. 

The Old Forecaster

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