Wednesday, April 28, 2021

Weather Discussion for Wednesday April 28, 2021

 Normal high/ low temperatures for April 26-May 3 (high/low) Redding 77/50, Chico 76/48, Quincy 68/34, Chester 62/31, Susanville 65/35, Grass Valley 66/42, Weaverville 71/36, Mt. Shasta 64/36, Yreka 68/36, Alturas 63/31


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. 

Ref the question in yesterdays comments...The last 2 year period is the second driest in the past 100 years.  The only drier was 1976-1977, and those of us that were around here remember that.  Any rain now won't help much.  In 1977 we had a wet May and still had a bad fire season and water shortages.  Not sure what the long...long...term weather will be but we should be prepared for a new normal.  From what little I have read I think we will find that the changes in the Arctic ice are more of an influence than we realize.  

The strong high pressure ridge will continue over the west coast through midday Saturday.  Skies will be mostly sunny with a few mid and high clouds at times.  Temperatures will be 12 to 18 degrees above normal and winds will be light.

Last Saturday and Sunday the high pressure ridge will be weakened (see map below) as a low pressure trough rides over it and across Canada and the Pacific Northwest.  Look for a few mid and high clouds Sunday and them mostly sunny through at least the middle of next week.  Gusty north winds will occur late Sunday through midday Wednesday.

There is some indication in the longer range models of a chance of rain late next week.

The Old Forecaster
  
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Monday, April 26, 2021

Weather Discussion for Monday April 26, 2021

Normal high/ low temperatures for April 26-May 3 (high/low) Redding 77/50, Chico 76/48, Quincy 68/34, Chester 62/31, Susanville 65/35, Grass Valley 66/42, Weaverville 71/36, Mt. Shasta 64/36, Yreka 68/36, Alturas 63/31

  
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 low pressure area that brought colder and wet weather to Northern California over the weekend is now moving out of our area.  There will be some lingering showers through this afternoon over the foothills and mountains.

Tuesday looks mostly sunny as a high pressure ridge begins to rebuild over the west coast.  Temperatures will warm but still be a few degrees below normal.  Light to moderate north winds will occur.

Wednesday through Friday a strong high pressure ridge will be over the west coast. (see map below).  Skies will be clear and daytime temperatures will be 10 to 15 degrees above normal.  Winds will be light.  

The high will weaken a little over the weekend.  The only change this will have on the weather is lowering the temperatures a few degrees.   

It looks like the dry weather will continue through at least the mid part of next week.

The Old Forecaster
  
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Saturday, April 24, 2021

Weather Discussion for Saturday April 24, 2021

 Normal high/ low temperatures for April 19-April 26 (high/low) Redding 74/48, Chico 74/45, Quincy 66/33, Chester 58/30, Susanville 63/35, Grass Valley 63/41, Weaverville 69/36, Mt. Shasta 62/35, Yreka 66/36, Alturas 61/30

  
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. 

Finally we have a low pressure area off the coast.  This system will move slowly eastward across Northern California Sunday and then into Nevada on Monday.  Today we will see partly cloudy to cloudy skies with periods of light rain or showers mainly over the higher elevations with only a slight chance in the valley.   Sunday the precipitation will be more widespread and heavier, with possible thunderstorms.  Snow levels will lower to around 4000 feet Sunday.  The precipitation will turn to showers late Sunday and Monday, ending by afternoon.

Tuesday high pressure will begin to build over the west coast and by Thursday we will have a strong high pressure ridge over California (see map below).  Temperatures Wednesday through Saturday will be 12 to 18 degrees above normal.

The high will weaken a little Sunday and Monday but we will still stay dry.

The Old Forecaster
  
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Wednesday, April 21, 2021

Weather Discussion for Wednesday April 21, 2021

Normal high/ low temperatures for April 19-April 26 (high/low) Redding 74/48, Chico 74/45, Quincy 66/33, Chester 58/30, Susanville 63/35, Grass Valley 63/41, Weaverville 69/36, Mt. Shasta 62/35, Yreka 66/36, Alturas 61/30

  
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 low pressure area that brought a few showers to the north state yesterday has moved east of our area.  Today through Friday we will have mostly sunny skies.  Temperatures will be above normal and light to moderate north winds will occur today and Thursday.  

Late Friday the jetstream will undercut the high pressure ridge that is to  our west.  This will allow a low pressure trough to form along the west coast (see map below).  This trough will send bands of clouds and rain across Northern California Saturday and Sunday with a few lingering showers over the Sierras early Monday.  Snow levels start out high but will lower to around 5000 feet Sunday.

Skies clear out Monday afternoon.  Tuesday and Wednesday look mostly clear with temperatures a few degrees below normal.  Another chance of rain will occur late Wednesday and Thursday.

The Old Forecaster
  
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Monday, April 19, 2021

Weather Discussion for Monday April 19, 2021

Normal high/ low temperatures for April 19-April 26 (high/low) Redding 74/48, Chico 74/45, Quincy 66/33, Chester 58/30, Susanville 63/35, Grass Valley 63/41, Weaverville 69/36, Mt. Shasta 62/35, Yreka 66/36, Alturas 61/30

  
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 is off the coast.  Today will be about like yesterday.  Temperatures will be above normal with the north end of the valley back near the 90 degree mark.  Winds will be light northerly.  

Tuesday and early Wednesday a weak upper level low pressure area will drop southward across Northern California.  This system will bring clouds to our area with a few light showers mainly over the foothills and mountains.  Temperatures will cool a few degrees but will still be above normal. Gusty north winds will occur Tuesday and Wednesday. 

Thursday and Friday we will be back to sunny skies and above normal temperatures.  

Saturday a major change in the weather is forecast to begin to develop.   The jetstream will undercut the high pressure ridge that is to our west.   This will allow a low pressure trough to form along the west coast (see map below).  This low will generate frontal systems and send them inland.  The question is whether the the storms will go inland over the Pacific Northwest or over Northern California.  At this time it looks like periods of rain or showers Saturday afternoon through Monday and more precipitation late Wednesday and Thursday.

The Old Forecaster
  
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Saturday, April 17, 2021

Weather Discussion for Saturday April 17, 2021

 Normal high/ low temperatures for April 12-April 19 (high/low) Redding 72/47, Chico 73/44, Quincy 65/32, Chester 57/28, Susanville 63/34, Grass Valley 62/39, Weaverville 67/35, Mt. Shasta 59/35, Yreka 64/35, Alturas 60/29

  
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 just off the west coast.  Today through Monday Northern California will be mostly sunny with above normal temperatures.  Some areas in the north end of the valley will reach the upper 80s to 90 degrees.  Moderate north winds will occur today and Sunday.  

Late Monday a weak upper level low pressure area will drop southward out of Western Canada.  The low will be over Northern California Tuesday afternoon and Wednesday (see map below).  This system will bring a few clouds to the north state with isolated light showers over the foothills and mountains. 

Thursday through the weekend high pressure is back along and over the west coast.  We will see a return of sunny skies and above normal temperatures.  Gusty north winds will occur late Wednesday through midday Friday.  

One ray of hope is that the models are now showing at least light precipitation around the 25th to the 27th.

The Old Forecaster
  
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Wednesday, April 14, 2021

Weather Discussion for Wednesday April 14, 2021

Normal high/ low temperatures for April 12-April 19 (high/low) Redding 72/47, Chico 73/44, Quincy 65/32, Chester 57/28, Susanville 63/34, Grass Valley 62/39, Weaverville 67/35, Mt. Shasta 59/35, Yreka 64/35, Alturas 60/29

  
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 low pressure area is over Nevada.  Today the areas along and east of the Sierra Nevada Crest will be partly cloudy to cloudy with isolated showers.  Temperatures will be below normal and gusty northeast to east winds will occur.  The areas west of the crest will see mostly sunny skies with a few clouds.  Temperatures will be near or a little above normal and gusty northeast winds are expected.

Thursday the low will begin to move eastward and a high pressure ridge reforms over the coast.  This ridge will continue to get stronger through the weekend (see map below).  The north state will see clear skies and warmer temperatures.  The Redding and Red Bluff areas could reach the 90 degree mark by Sunday and Monday.  The northeast winds will decrease early Thursday with a return of moderate north winds Friday and Saturday.

The high will weaken little next week.  This will allow some cooling but we will still be dry. 

The Old Forecaster
  
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Monday, April 12, 2021

Weather Discussion for Monday April 12, 2021

Normal high/ low temperatures for April 12-April 19 (high/low) Redding 72/47, Chico 73/44, Quincy 65/32, Chester 57/28, Susanville 63/34, Grass Valley 62/39, Weaverville 67/35, Mt. Shasta 59/35, Yreka 64/35, Alturas 60/29

  
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. 

Today will start out mostly sunny but the Northern and  Eastern sections of the north state will see a few clouds in the late afternoon and evening as a low pressure area drops from Canada toward Nevada.  Temperatures today will be slightly cooler.  Gusty northwest winds are expected.

Tuesday through Wednesday the low will be over Nevada (see map below).  This system doesn't have much moisture since it formed over the inland areas of Canada.  However, the weather along and east of the Sierra Cascade Crest will be totally differed than the weather west of the crest.  Tuesday and Wednesday along and east of the crest skies will be partly cloudy to cloudy with isolated light showers.  Temperatures will be below normal.  Gusty northeast to east winds are expected.  West of the crest will be mostly sunny with scattered clouds.  Temperatures will be near normal.  Strong and gusty northeast winds are expected.

Thursday the low will be moving eastward.  Skies will be mostly sunny and warming will occur both east and west of the crest.  Gusty northeast to east winds will continue.

Friday through at least the mid part of next week high pressure will be back over the coast.  Clear skies and above normal temperatures.  Winds will be decreasing Friday and light by Saturday and weekend. 

The Old Forecaster
  
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Saturday, April 10, 2021

Weather Discussion for Saturday April 10, 2021

Normal high/ low temperatures for April 5-April 12 (high/low) Redding 70/46, Chico 72/44, Quincy 62/31, Chester 57/28, Susanville 61/32, Grass Valley 62/38, Weaverville 65/33, Mt. Shasta 58/33, Yreka 63/33, Alturas 59/28

  
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.  Today through midday Monday we will have mostly clear skies.  Temperatures will continue above normal.  Light to moderate north winds will occur today and Sunday.  

Monday a low pressure area will drop southward from Western Canada and end up over the Great Basin (see map below).  The low will remain there through Thursday.  This system has limited moisture.  Monday night through Wednesday there will be partly cloudy skies east of the Sierra Cascade Crest with isolated light showers.  The areas east of the Crest will see mostly sunny skies with a few clouds in the afternoons.  Temperatures will cool but still be above normal west of the crest.  Gusty north to northeast winds will occur late Monday through Wednesday.  

Thursday through the weekend look clear with warmer temperatures and light winds. 

The Old Forecaster
  
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Wednesday, April 7, 2021

Weather Discussion for Wednesday April 7, 2021

Normal high/ low temperatures for April 5-April 12 (high/low) Redding 70/46, Chico 72/44, Quincy 62/31, Chester 57/28, Susanville 61/32, Grass Valley 62/38, Weaverville 65/33, Mt. Shasta 58/33, Yreka 63/33, Alturas 59/28

  
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. 

No rain in sight.  The map below shows that high pressure will remain along or just off the west coast.  This will keep the jetstream to our north.  Expect mostly clear skies with a few mid and high clouds from systems passing by to our north.  Temperatures will be above normal and will be light.

The Old Forecaster
  
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Monday, April 5, 2021

Weather Discussion for Monday April 5, 2021

Normal high/ low temperatures for April 5-April 12 (high/low) Redding 70/46, Chico 72/44, Quincy 62/31, Chester 57/28, Susanville 61/32, Grass Valley 62/38, Weaverville 65/33, Mt. Shasta 58/33, Yreka 63/33, Alturas 59/28

  
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 area is passing through the Pacific Northwest.  This system will bring a few clouds to Northern California today with isolated light showers possible this morning over the higher elevations east of the valley.

Tuesday through at least early next week we will be under a weather pattern like the one shown on the map below.  This is a normal spring pattern.  A weak high pressure ridge is over the west with jetstream (storm track) to our north.  This will bring mostly sunny skies to the north state with above normal temperatures and relatively light winds. 

The Old Forecaster
  
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Saturday, April 3, 2021

Weather Discussion for Saturday April 3, 2021

 Normal high/ low temperatures for March 29-April 5 (high/low) Redding 69/45, Chico 70/43, Quincy 60/31, Chester 55/27, Susanville 57/30, Grass Valley 60/37, Weaverville 64/33, Mt. Shasta 58/31, Yreka 61/32, Alturas 57/27

  
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. 

Another chance of rain bites the dust.   As expected the frontal system approaching the coast is splitting apart.   A few days ago it was thought that the southern portion would get pulled eastward Sunday and Monday as a low pressure trough moves through the Pacific Northwest.  The forecast map below shows that this is not expected to happen.  The southern low will stay well off the coast.  

Partly to mostly sunny and mild today and Sunday with continued above normal temperatures and light winds.   There will be a few clouds late Sunday and early Monday with isolated showers on the north coast and near the Oregon border.  

Tuesday through next weekend look mostly sunny with above normal temperatures and light winds.  

The Old Forecaster
  
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