Saturday, February 27, 2021

Weather Discussion for Saturday Feb. 27, 2021

 Normal high/ low temperatures for Feb 22 -March 1  (high/low) Redding 61/41, Chico 62/39, Quincy 53/26, Chester 47/25, Susanville 49/27, Grass Valley 56/36, Weaverville 56/30, Mt. Shasta 49/28, Yreka 53/28, Alturas 47/23

  
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. 

The high pressure ridge is still off the coast.  Today and Sunday we will see clear skies with above normal temperatures.  Gusty north winds will occur later today and Sunday.

Monday the high will pull back further to the west as a low pressure area cuts off from the jetstream and becomes a closed low pressure area well off the California coast (see map below).  The low will move slowly across Southern California late Tuesday and Wednesday.  Monday through Wednesday Northern California will be partly to mostly sunny with a few clouds from the low to the south.  Temperatures will be slightly above normal.  Light to moderate south winds will occur in the afternoon.  

Thursday a large scale low pressure trough will deepen off the coast.  This will send a weak frontal system across the north state Friday with light precipitation.   A slightly stronger front will move through Sunday and Monday.

The Old Forecaster

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Wednesday, February 24, 2021

Weather Discussion for Wednesday Feb. 24, 2021

Normal high/ low temperatures for Feb 22 -March 1  (high/low) Redding 61/41, Chico 62/39, Quincy 53/26, Chester 47/25, Susanville 49/27, Grass Valley 56/36, Weaverville 56/30, Mt. Shasta 49/28, Yreka 53/28, Alturas 47/23

  
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. 

High pressure continues off the coast with low pressure areas moving over it and then dropping southeastward in the Great Basin.  Not much change in this weather pattern is expected through Sunday.  The north state will be mostly clear with continue above normal temperatures.  Periods of gusty north winds will occur.  

Sunday evening a low pressure area will move over the ridge.  However, instead of heading toward the Great Basin, it will cutoff or break away from the jetstream and drop southward.  This low will become a closed low pressure area well off the coast (see map below).  While the models don't agree on the forecast position of the low, none of them have it closer than it is shown on the map below.   This is too far west to being an precipitation to Northern California.  Monday through Wednesday of next week will be sunny.  Temperatures will cool a little but still be above normal.  Winds will be relatively light.   

The Old Forecaster

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Monday, February 22, 2021

Weather Discussion for Monday Feb. 22, 2021

  Normal high/ low temperatures for Feb 22 -March 1  (high/low) Redding 61/41, Chico 62/39, Quincy 53/26, Chester 47/25, Susanville 49/27, Grass Valley 56/36, Weaverville 56/30, Mt. Shasta 49/28, Yreka 53/28, Alturas 47/23

  
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. 

Well the high pressure ridge is back and our chances of rain anytime in the next week are pretty much zero.  This time high is off the coast as the satellite picture and forecast map below show.  While the high is further west than is has been, it is still close enough to keep us dry.   Low pressure areas or storms will move over the high and drop across western Canada into the Great Basin.  The north state will be mostly clear with a few clouds at times over the mountains north and east of the valley.   Temperatures will be a few degrees above normal and there will be periods of gusty north winds.

The longer range forecast models show a chance of precipitation next Monday or Tuesday. 

The Old Forecaster

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Saturday, February 20, 2021

Weather Discussion for Saturday Feb. 20, 2021

  Normal high/ low temperatures for Feb 16 -Feb 23  (high/low) Redding 60/41, Chico 62/39, Quincy 52/27, Chester 47/23, Susanville 47/25, Grass Valley 56/34, Weaverville 55/30, Mt. Shasta 48/29, Yreka 52/28, Alturas 47/21

  
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. 

A weak low pressure area moved rapidly through Northern California during the night.  There will still be a few showers trough early afternoon over the higher elevations north and east of the valley.  The valley will be partly to mostly sunny today.

Sunday through next week a high pressure ridge will be just off the coast (see map below).   Low pressure areas will ride over the high and then drop southeastward into the Great Basin.  The north state will be mostly clear with a few clouds at times over the northern eastern mountains from the storms bypassing our area.  Temperatures will be a few degrees above normal and periods of gusty north winds are expected. 

The Old Forecaster

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Wednesday, February 17, 2021

Weather Discussion for Wednesday Feb. 17, 2021

  Normal high/ low temperatures for Feb 16 -Feb 23  (high/low) Redding 60/41, Chico 62/39, Quincy 52/27, Chester 47/23, Susanville 47/25, Grass Valley 56/34, Weaverville 55/30, Mt. Shasta 48/29, Yreka 52/28, Alturas 47/21

  
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. 

This morning's satellite picture (below) shows a weak high pressure ridge off the coast with a low pressure area and frontal system out in the Pacific.  The front is moving eastward and will weakened but should move through our area Thursday afternoon and Friday.  Today will be sunny with above normal temperatures and light to moderate north winds.  Clouds will begin to increase Thursday with light rain over Northern California Thursday afternoon and night.  Snow levels will be near 5000 feet.  There will be scattered showers over the foothills and mountains Friday with isolated showers in the north end of the valley.  Snow levels will remain near 5000 feet.

Skies will be clearing Saturday afternoon as high pressure rebuilds just off the coast (see map below).  The high will stay there through Tuesday and we will see sunny skies with above normal temperatures.  The high will shift back to the west Wednesday and this will allow a cold low pressure area to drop southward from Canada into Nevada.  This will cool our weather down and may trigger a few snow flurries over the mountains north and east of the valley.

The Old Forecaster

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Monday, February 15, 2021

Weather Discussion for Monday Feb. 15, 2021

  Normal high/ low temperatures for Feb 16 -Feb 23  (high/low) Redding 60/41, Chico 62/39, Quincy 52/27, Chester 47/23, Susanville 47/25, Grass Valley 56/34, Weaverville 55/30, Mt. Shasta 48/29, Yreka 52/28, Alturas 47/21

  
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. 

A weak frontal system is now exiting the north state.  The rain will turn to showers this morning and end in the late afternoon.  Snow levels will be 5000 to 6000 feet.   

Tuesday and Wednesday skies will be mostly clear with temperatures near or slightly above normal.  Winds will be light.

Clouds begin to increase Thursday as a low pressure trough develops along the coast (see map below).  This is not a strong trough but will push the jetstream (storm track) over Northern California which will allow weak frontal systems to move through our area.  Expect light rain Thursday afternoon through midday Friday with scattered showers Friday afternoon through midday Saturday.  Snow levels will be 5000 to 6000 feet.   

Skies clear Sunday with partly to mostly sunny skies through at least early next week.

The Old Forecaster

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Saturday, February 13, 2021

Weather Discussion for Saturday Feb. 13, 2021

 Normal high/ low temperatures for Feb 8 -Feb 16  (high/low) Redding 60/40, Chico 61/38, Quincy 51/26, Chester 45/23, Susanville 47/24, Grass Valley 56/34, Weaverville 55/30, Mt. Shasta 48/29, Yreka 51/27, Alturas 46/21

  
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. 

A low pressure trough is moving through the area.  The main band of precipitation has gone through but there will be some showers through this afternoon over the foothills and mountains. Snow levels will be 5000 to 6000 feet.  Clouds increase again Sunday, and late Sunday afternoon the next frontal system reaches the coast.   This is a weak system and will bring light rain and showers to the north state Sunday night through midday Monday. Snow levels will be 5000 to 6000 feet.

Tuesday through Thursday afternoon a high pressure ridge will be along the coast (see map below).  Skies will be clear with above normal temperatures and light to moderate north winds.  

More rain is expected late Thursday and Friday as another weak frontal system moves through.  The showers will end Saturday morning.

The Old Forecaster

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Wednesday, February 10, 2021

Weather Discussion for Wednesday Feb. 10, 2021

  Normal high/ low temperatures for Feb 8 -Feb 16  (high/low) Redding 60/40, Chico 61/38, Quincy 51/26, Chester 45/23, Susanville 47/24, Grass Valley 56/34, Weaverville 55/30, Mt. Shasta 48/29, Yreka 51/27, Alturas 46/21

  
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. 

Mostly sunny today with temperatures near or slightly above normal.  Winds will be light.  There is a frontal system off the coast that will move through Northern California Thursday.  This system will bring rain to the area with the snow levels 5000 to 6000 feet.  Friday looks partly cloudy over the mountains and sunny in the valley.  The next frontal system moves through Saturday (see map below) with more rain.  Snow levels will be 4000 to 5000 feet.  

There will be another break Sunday and then more rain Monday as the next system passes through.  Snow levels with this system will be 5000 to 6000 feet.  

High pressure will be over the area Tuesday through the end of the week for mostly clear skies and normal temperatures. 

The Old Forecaster

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Monday, February 8, 2021

Weather Discussion for Monday Feb. 8, 2021

 Normal high/ low temperatures for Feb 8 -Feb 16  (high/low) Redding 60/40, Chico 61/38, Quincy 51/26, Chester 45/23, Susanville 47/24, Grass Valley 56/34, Weaverville 55/30, Mt. Shasta 48/29, Yreka 51/27, Alturas 46/21

  
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. 

The high pressure ridge is still off the coast.  However, over the next several days the jetstream will begin to split with the southern branch breaking through the ridge and across Northern California.  The map below shows this pattern.  As the southern branch of the jetstream develops low pressure troughs and frontal systems will ride along it and into the north state.   These systems will start off weak but become a little stronger as the southern branch of the jetstream strengthens.  

Clouds will begin to increase today and then Tuesday the first very weak system will move across our area.  Look for mostly cloudy and cooler Tuesday with the chance of isolated light showers over the mountains.  Wednesday will be partly sunny and then the next system, which will be a little stronger, will move into our area Thursday.  This storm will bring light rain to Northern California with the snow level 5000 feet north and 6000 feet south.  

Partly cloudy Friday with scattered showers mainly over the foothills and mountains and then the next storm will bring precipitation tot he area Saturday and early Sunday.

The Old Forecaster

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Saturday, February 6, 2021

Weather Discussion for Saturday Feb. 6, 2021

 Normal high/ low temperatures for Feb 1 -Feb 8  (high/low) Redding 59/37, Chico 59/39, Quincy 49/24, Chester 45/21, Susanville 44/23, Grass Valley 55/33, Weaverville 53/30, Mt. Shasta 46/27, Yreka 49/26, Alturas 46/19

  
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. 

A fairly strong high pressure ridge is along the west coast and while it will weakened next week it will still be along the coast (see map below).  Skies will be mostly clear through midday Monday with above normal temperatures and light winds. Clouds will increase Monday and late Tuesday and Wednesday a very weak low pressure are will break through the high and move across Northern California.  This system will bring a few clouds to north state with isolated light showers over the mountains.  

Skies clear late Wednesday.  However, the models have made a big switch on the last runs and indicate a wetter pattern starting Thursday afternoon and continuing through the weekend.  

The Old Forecaster

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Wednesday, February 3, 2021

Weather Discussion for Wednesday Feb. 3, 2021

Normal high/ low temperatures for Feb 1 -Feb 8  (high/low) Redding 59/37, Chico 59/39, Quincy 49/24, Chester 45/21, Susanville 44/23, Grass Valley 55/33, Weaverville 53/30, Mt. Shasta 46/27, Yreka 49/26, Alturas 46/19

  
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. 

A weak low pressure trough will move rapidly across Northern California today with light rain or showers.  Snow levels will be 2000 to 2500 feet north and 3000 to 4000 feet south.  Thursday a high pressure ridge begins to build along the west coast and will  hold there through the weekend.  Thursday through Sunday the north state will be mostly sunny.  Daytime temperatures will warm and be above normal Friday through Sunday.  Periods of gusty north winds are expected.  

The high will weaken somewhat early next week, but not enough to let the wet weather return.

The Old Forecaster

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Monday, February 1, 2021

Weather Discussion for Monday Feb. 1, 2021

 Normal high/ low temperatures for Feb 1 -Feb 8  (high/low) Redding 59/37, Chico 59/39, Quincy 49/24, Chester 45/21, Susanville 44/23, Grass Valley 55/33, Weaverville 53/30, Mt. Shasta 46/27, Yreka 49/26, Alturas 46/19

  
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.

The last blog I said the low off the coast would move slow...but it has pretty much stopped moving over the past 24 hours.  There has been lots of rain over the northwest section of the state but not much elsewhere.  This system will begin to move eastward later today and it will be east of our area by late Tuesday.  Rain will spread across Northern California today and continue through late Tuesday.  Snow levels will be 4000 to 5000 feet north and higher south.  Gusty south winds are expected today.  Wednesday a weak low pressure trough will move across the north state with mostly light precipitation.  Snow levels will be 3000 to 4000 feet

Thursday through the start of next week a high pressure ridge will be along the west coast (see map below).  Skies will be clear with temperatures warming to above normal by Friday.  Periods of gusty north winds will occur. 

The Old Forecaster

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