Monday, May 31, 2021

Weather Discussion for Monday May 31, 2021

Normal high/ low temperatures for May31-June 7 (high/low) Redding 86/59, Chico 86/56, Quincy 78/41, Chester 73/39, Susanville 75/44, Grass Valley 76/50, Weaverville 81/44, Mt. Shasta 72/44, Yreka 77/45, Alturas 73/40


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 very strong high pressure area is over the west coast.  Today through Wednesday the inland areas of Northern California will be sunny with temperatures 20 to 25 degrees above normal.  Winds will be light.  

Thursday the high will weaken as a low pressure trough moves into Western Canada (see map below).  While it will be weaker the high will remain along the west coast through the weekend.  Temperatures will cooler but still 8 to 12 degrees above normal.  Gusty north winds are expected late Saturday through Monday.

The Old Forecaster
  
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Saturday, May 29, 2021

Weather Discussion for Saturday May 29, 2021

 Normal high/ low temperatures for May 24-May 31 (high/low) Redding 85/56, Chico 84/53, Quincy 75/40, Chester 71/38, Susanville 73/41, Grass Valley 75/48, Weaverville 79/42, Mt. Shasta 72/43, Yreka 75/42, Alturas 71/38


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 that is over our area will get stronger through Tuesday and then weaken slightly toward the end of the week. The next week looks mostly clear.  Temperatures will warm through midweek.  The hottest days look to be Monday and Tuesday when daytime temperatures will be 18 to 22 degrees above normal. Temperatures will cool slowly the latter part of next week.  However, they still will be above normal.  Winds will be relatively light.

The Old Forecaster
  
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Wednesday, May 26, 2021

Weather Discussion for Wednesday May 26, 2021

Normal high/ low temperatures for May 24-May 31 (high/low) Redding 85/56, Chico 84/53, Quincy 75/40, Chester 71/38, Susanville 73/41, Grass Valley 75/48, Weaverville 79/42, Mt. Shasta 72/43, Yreka 75/42, Alturas 71/38


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 slowly beginning to build along and just off the west coast.  Today will be sunny with temperatures about like yesterday.  Winds will be light.  Thursday we will see a few mid and high clouds from a low pressure area moving through Western Canada.  Temperatures will be a few degrees above normal.  Light to moderate southwest to northwest winds are expected.

Friday the warm up starts as the high pressure pushes northward.  A strong high pressure ridge will be along the west coast by the weekend (see map below).   Temperatures will be warming and by Sunday and early next week the north valley should see their first 100+ degree readings of the year. 

The Old Forecaster
  
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Monday, May 24, 2021

Weather Discussion for Monday May 24, 2021

 Normal high/ low temperatures for May 24-May 31 (high/low) Redding 85/56, Chico 84/53, Quincy 75/40, Chester 71/38, Susanville 73/41, Grass Valley 75/48, Weaverville 79/42, Mt. Shasta 72/43, Yreka 75/42, Alturas 71/38


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 and frontal system is off the coast and moving eastward.  The southern end of this system will bring a few showers to the areas north of Redding later today and early Tuesday.  The showers will end by Tuesday morning with mostly sunny skies over all areas by midday.  Temperatures today and Tuesday will be near normal.  Light to moderate southwest to northwest winds will occur later today and early Tuesday. 

Wednesday high pressure begins slowly rebuild along the coast.  Wednesday will be sunny with temperatures a few degrees above normal and light winds.  Thursday a low pressure trough will pass through Western Canada and the Pacific Northwest.  This system will bring a few mid and high clouds to the north state and cool temperatures back to near normal.

Friday through at least the mid part of next week the high pressure ridge along the coast will be controlling our weather (see map below).  This means clear skies and above normal temperatures. 

The Old Forecaster
  
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Saturday, May 22, 2021

Weather Discussion for Saturday May 22, 2021

 Normal high/ low temperatures for May 17-May 24 (high/low) Redding 82/54, Chico 82/51, Quincy 74/38, Chester 69/35, Susanville 72/40, Grass Valley 73/46, Weaverville 77/40, Mt. Shasta 69/41, Yreka 75/42, Alturas 69/36


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 over Nevada is moving northward.  Sunday the low will begin move eastward as it reaches the Canadian border.  Today the backwash from the low will push some clouds over Northern California, with scattered showers over the higher elevations north and east of the valley.  Temperatures will be below normal.  The gusty north winds will continue today but will end late tonight with light winds Sunday..  Sunday there will still be some isolated showers near the California/Nevada border with sunny and warmer conditions elsewhere.  

Monday a weak low pressure area will move through the Pacific Northwest (see map below).  The southern end of this system will trigger a few showers over the areas north of Redding.  Temperatures will be near normal with gusty southwest to northwest winds.

Tuesday high pressure begins to slowly rebuild over the west coast.  Tuesday through the end of next week look mostly clear.  Temperatures will be above normal.  Gusty north winds will occur Tuesday and Wednesday.

The Old Forecaster
  
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Wednesday, May 19, 2021

Weather Discussion for Wednesday May 19, 2021

 Normal high/ low temperatures for May 17-May 24 (high/low) Redding 82/54, Chico 82/51, Quincy 74/38, Chester 69/35, Susanville 72/40, Grass Valley 73/46, Weaverville 77/40, Mt. Shasta 69/41, Yreka 75/42, Alturas 69/36


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 will move across Northern California later today and Thursday and will end up over Central and Southern Nevada Friday.  This system doesn't have much moisture with it but should trigger a few showers and thunderstorms over the foothills and mountains later today and Thursday.  There is a slight chance of an isolated shower in the north end of the valley.  Friday there will be a few showers over the higher elevations north and east of the valley. Partly to mostly sunny skies will occur elsewhere.  Snow levels will be near 6000 feet on Thursday. Precipitation amounts will be light.  Temperatures today through Friday will be below normal with Thursday being the coolest day.  Gusty northwest winds will occur later today through midday Friday.  

Late Friday  the low will be drawn northward by a low pressure area that will be approaching the Canadian coast.  Saturday there will be isolated showers over the mountains north and east of the valley, with partly sunny skies elsewhere.  Temperatures will warm but still be below normal.  Sunday looks partly mostly sunny with near normal temperatures. 

Monday afternoon and Tuesday a weak low pressure area will move across the north state.  This system could trigger scattered light showers and possible thunderstorms mainly over the higher elevations.  

Wednesday through the end of the week high pressure returns for sunny skies and above normal temperatures. 

The Old Forecaster
  
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Monday, May 17, 2021

Weather Discussion for Monday May 17, 2021

Normal high/ low temperatures for May 17-May 24 (high/low) Redding 82/54, Chico 82/51, Quincy 74/38, Chester 69/35, Susanville 72/40, Grass Valley 73/46, Weaverville 77/40, Mt. Shasta 69/41, Yreka 75/42, Alturas 69/36


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 and most of Tuesday will clear with temperatures a little cooler each day.  Winds will be light in the morning and southerly in the afternoons. 

Late Tuesday a low pressure trough will be approaching the coast.  This low will move slowly across Northern California Wednesday and Thursday and will be over Southern Nevada by Thursday night (see map below).  Wednesday and Thursday look partly cloudy to cloudy with scattered showers and possible thunderstorms.  Temperatures will be below normal and gusty southwest to northwest winds are expected. 

Friday things get a little strange.   The low will begin to move almost straight northward and will merge, on the weekend,  with low pressure area that will be approaching the Canadian coast.  Friday looks partly cloudy with showers over the areas north and east of the valley.  Late Saturday and Sunday a weak frontal system will bring more light showers to the foothills and mountains with isolated showers possible in the north end of the valley.  Temperatures will continue below normal through the weekend. 

Clear skies and slightly above normal temperatures return to the north state early next week. 

The Old Forecaster
  
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Saturday, May 15, 2021

Weather Discussion for Saturday May 15, 2021

Normal high/ low temperatures for May 10-May 17 (high/low) Redding 81/54, Chico 80/51, Quincy 72/38, Chester 67/35, Susanville 70/39, Grass Valley 71/46, Weaverville 76/39, Mt. Shasta 67/40, Yreka 73/41, Alturas 67/33


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 cutoff low pressure area is now over Northern and Central California and is moving southeastward. Scattered showers and thunderstorms will occur again this afternoon and evening over the foothills and mountains with isolated activity possible in the valley.  Temperatures will be cooler today.  Sunday most of the state will be sunny except over the Sierras south of Mt. Lassen, where isolated afternoon thunderstorms will occur.  

Monday and Tuesday look clear with temperatures back above normal.  Winds will be light.

Quite a change in the weather starting Wednesday.  A strong...for this time of year...low pressure area will be nearing the coast late Tuesday (see map below).  This system  will move slowly across the north state Wednesday and Thursday.  The low will trigger showers and thunderstorms.  Temperatures will be below normal.  Snow levels will be 5000 to 6000 feet.  Periods of gusty southwest to northwest winds will occur.  Friday looks partly cloudy over the areas north and east of the valley with a few showers.  Temperatures will continue below normal.  

Late Saturday and Sunday a weak system could bring showers over the areas from Redding northward.  

The Old Forecaster
  
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Wednesday, May 12, 2021

Weather Discussion for Wednesday May 12, 2021

 Normal high/ low temperatures for May 10-May 17 (high/low) Redding 81/54, Chico 80/51, Quincy 72/38, Chester 67/35, Susanville 70/39, Grass Valley 71/46, Weaverville 76/39, Mt. Shasta 67/40, Yreka 73/41, Alturas 67/33


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 along the coast.  Sunny today and Thursday with daytime temperatures 10 to 15 degrees above normal.  Winds will be light.  

In the last blog I said a low pressure trough would pass through Western Canada and the Pacific Northwest Friday and Saturday.   The trough will still reach the Pacific Northwest Friday.  However, it now looks like the southern end of this trough will cutoff from the jetstream and drop southward over California, ending up over Central California by Saturday (see map below).   The low will trigger a few afternoon and evening thunderstorms over the foothills and mountains Friday and Saturday.  There is a slight chance of a thunderstorm in the north end of the valley.  Temperatures will cool but still be above normal.  Moderate north winds will occur in some areas Saturday.  Sunday the low will be moving eastward but still could trigger afternoon thunderstorms over the Sierras.  

Monday through the mid part of next week another low pressure trough will move through Western Canada and the Pacific Northwest.  While this one isn't expected to split and our area should stay dry, it will keep the high pressure ridge from pushing northward.  Look for sunny skies with a few high clouds.  Temperatures will be a few degrees above normal.

The Old Forecaster
  
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Monday, May 10, 2021

Weather Discussion for Monday May 10, 2021

Normal high/ low temperatures for May 10-May 17 (high/low) Redding 81/54, Chico 80/51, Quincy 72/38, Chester 67/35, Susanville 70/39, Grass Valley 71/46, Weaverville 76/39, Mt. Shasta 67/40, Yreka 73/41, Alturas 67/33


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 question for the comments...The wave length of the large scale features in the atmosphere is usually about the width of the U.S. Therefore many times when there is a strong high pressure ridge over the west there will be a trough or cooler weather in the east.  In the summer the large scale flow shifts northward.

High pressure will continue to dominate our weather for at least the next week and probably longer.   The high pressure ridge is currently building over the west coast.  This will keep skies mostly clear and daytime temperatures will warm to 10 to 15 degrees above normal Tuesday through Thursday.  The gusty north winds will continue through midday Tuesday.  

The high will move back just off the coast Friday through the weekend as a low pressure area drops southeastward across Western Canada and the Pacific Northwest (see map below).  The only affect this system will have on the north state is to cool temperatures to just a few degrees above normal and bring more gusty north winds into the area starting late Saturday and Sunday.  

The Old Forecaster
  
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Saturday, May 8, 2021

Weather Discussion for Saturday May 8, 2021

Normal high/ low temperatures for May 3-May 10 (high/low) Redding 79/53, Chico 79/49, Quincy 70/37, Chester 65/33, Susanville 68/38, Grass Valley 68/44, Weaverville 74/39, Mt. Shasta 66/38, Yreka 70/39, Alturas 65/33


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 high pressure ridge will continue over the western U.S. and off the west coast.   The high will get stronger through midweek and the slowly weaken (see map below).  The next week looks like clear skies,  daytime temperatures will warm through Wednesday and then cool a little next weekend. Temperatures Tuesday and Wednesday will be 8 to 12 degrees above normal.  Gusty north to northeast winds will continue through Tuesday.

The Old Forecaster
  
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Wednesday, May 5, 2021

Weather Discussion for Wednesday May 5, 2021

 Normal high/ low temperatures for May 3-May 10 (high/low) Redding 79/53, Chico 79/49, Quincy 70/37, Chester 65/33, Susanville 68/38, Grass Valley 68/44, Weaverville 74/39, Mt. Shasta 66/38, Yreka 70/39, Alturas 65/33


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 question yesterday about why so many high pressure ridges.  Several theories but no conclusions.  

Sunny today with temperatures a little warmer than yesterday.  North winds will be ending this morning.

Thursday and early Friday a low pressure trough will pass through Western Canada and the Pacific Northwest.  This system "dry" and will bring just a few high clouds to the north state.  Temperatures Thursday and Friday will cool back to near normal.  Gusty southwest to northwest winds will occur Thursday and gusty north winds Friday.  

Saturday through at least the mid part of next week we will return to a weak high pressure ridge along and off the coast (see map below).  Sunny skies with above normal temperatures.   Unfortunately....gusty north to northeast winds Sunday through Tuesday.   

The Old Forecaster
  
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Monday, May 3, 2021

Weather Discussion for Monday May 2, 2021

Normal high/ low temperatures for May 3-May 10 (high/low) Redding 79/53, Chico 79/49, Quincy 70/37, Chester 65/33, Susanville 68/38, Grass Valley 68/44, Weaverville 74/39, Mt. Shasta 66/38, Yreka 70/39, Alturas 65/33


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 blocking any weather systems from reaching our area.   Today through Wednesday will be sunny with temperatures above normal.  Gusty north winds will occur today and Tuesday.  

Thursday and early Friday a low pressure trough will pass through Western Canada and the Pacific Northwest (see map below).  This system will be relatively dry but could trigger some mountains showers over the areas north of Redding.  Temperatures will cool to near normal Thursday and Friday.  Gusty southwest to northwest winds are expected.

Saturday through early next week high pressure will be back over the west.  Look for a return of clear skies and above normal temperatures.  Gusty north winds will occur Saturday and Sunday.

The Old Forecaster
  
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Saturday, May 1, 2021

Weather Discussion for Saturday May 1, 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. 

A low pressure trough and frontal system will pass through Western Canada and the Pacific Northwest later today and early Sunday.  This system will bring a few clouds to our area and there could be a light showers near the Oregon Border.  Skies will be clear Sunday.  Temperatures today and Sunday will be a little cooler but still above normal.  Gusty north winds will move into the area this evening and continue through Sunday.

Monday through Wednesday high pressure will be back over the west coast.  Skies will be sunny and daytime temperatures will be 5 to 10 degrees above normal.  Winds will be light.

Thursday afternoon and Friday another low pressure area will pass through the Pacific Northwest (see map below).  This system will bring some clouds to the area with a few showers mainly over the mountains.  Temperatures will cool to slightly below normal by Friday.  Locally gusty south winds will precede this system. 

Saturday through Monday high pressure is back over the west and we will see more sunny skies....above normal temperatures and gusty north winds. 

The Old Forecaster
  
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