Monday, September 30, 2019

Weather Discussion for Monday Sept. 30, 2019

Normal high/ low temperatures for Sept 30-Oct 7  (high/low) Redding 87/54  Chico 84/50, Quincy 76/35, Chester 73/34, Susanville 73/38, Grass Valley 77/46, Weaverville 81/38, Mt. Shasta 73/37, Yreka 76/38, Alturas 74/31.
  
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 is now over Oregon and is moving eastward.  There will be some residual showers over the areas north and east of the valley this morning but they will end by afternoon.  Temperatures today will be below normal. 

Tuesday and Wednesday we will see mostly clear skies with temperatures warming to near normal by Wednesday.  Winds will be light.  Late Wednesday and Thursday a low pressure trough will pass by to our north (see map below).  This system will bring a few clouds to the north state with isolated showers possible near the Oregon border. 

Friday through the weekend a weak high pressure ridge will be over the western U.S.   The north state will be clear with temperatures a few degrees above normal.  Winds will be light.

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Saturday, September 28, 2019

Forecast Discussion for Saturday Sept. 28, 2019

Normal high/ low temperatures for Sept 23-Sept 29  (high/low) Redding 89/55  Chico 88/52, Quincy 79/35, Chester 76/36, Susanville 75/41, Grass Valley 79/49, Weaverville 84/40, Mt. Shasta 76/42, Yreka 79/42, Alturas 77/33.
  
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 satellite picture below shows the low pressure area is now over the Pacific Northwest.  The first band of clouds moved through much of the area early this morning and is now over the areas east of the valley.  Today will be partly sunny to partly cloudy with a few showers over the mountains.  Temperatures will be 10 to 15 degrees below normal and winds will be southwest to northwest.  

The low will be over Oregon Sunday and then move east of our area early Monday.   During this time the north state will be partly cloudy to partly sunny with showers over the higher elevations and a chance of a light shower in the north end of the valley.  Snow levels will be around 5000 feet. Temperature will be cooler than today and winds will be southwest to northwest.

Skies will clear by midday Monday.  Tuesday we will see sunny skies with temperatures still below normal.  Gusty north winds will occur late Monday and Tuesday.

Sunny and a little warmer Wednesday and then we will see a few clouds Thursday as a low pressure trough passes by to our north (see map below).  There could a few light showers near the Oregon border.  Friday through the weekend looks sunny with temperatures near normal and light wind. 
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Wednesday, September 25, 2019

Weather Discussion for Wednesday Sept. 25, 2019

Normal high/ low temperatures for Sept 23-Sept 29  (high/low) Redding 89/55  Chico 88/52, Quincy 79/35, Chester 76/36, Susanville 75/41, Grass Valley 79/49, Weaverville 84/40, Mt. Shasta 76/42, Yreka 79/42, Alturas 77/33.
  
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 over the west.   Today and Thursday Northern California will be sunny with daytime temperatures  10 to 15 degrees above normal.  Gusty northeast winds continue in some areas but will end early Thursday.  

Friday a low pressure area will drop southward over the Pacific Northwest.  The low will continue southward and will be over Oregon by Monday (see map below).  The track of the low will still be the issue.   At this time it looks like it will remain close to the coast over over land.  This will limit the moisture available to generate precipitation.   There could be isolated showers over the higher elevations north of Redding on Friday with partly to mostly clear skies elsewhere.  Saturday through Monday the north state will be partly cloudy to partly sunny with a few showers over the higher elevations with the chance of a light shower in the valley.   Temperatures will start cooling Friday and will be 10 to 20 degrees below normal by the weekend.  Gusty southwest to northwest winds will occur at times Friday through the weekend. 

Tuesday and Wednesday the low will be moving east.  We will have clear skies with temperatures returning to normal.

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Monday, September 23, 2019

Weather Discussion for Monday Sept. 23, 2019

Normal high/ low temperatures for Sept 23-Sept 29  (high/low) Redding 89/55  Chico 88/52, Quincy 79/35, Chester 76/36, Susanville 75/41, Grass Valley 79/49, Weaverville 84/40, Mt. Shasta 76/42, Yreka 79/42, Alturas 77/33.
  
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 is along the coast and will hold there through Thursday.  Today through Wednesday we will have sunny skies.  Temperatures will be warming to 10 to 15 degrees above normal by Wednesday.  Gusty north to northeast winds are expected.

Thursday the north state will continue mostly clear.  The north winds will end and temperatures will cool..

Friday a low pressure trough will drop over the area and hold there through the weekend.  This is a hard feature to forecast as the models are varying from inland as shown below to more along and off the coast as forecast by the European model.  Friday afternoon through the weekend look partly cloudy at times with scattered showers over the higher elevations and a chance of a light shower in the valley.  One thing the models agree on is temperatures will cool to at least 10 degrees below normal.  Gusty southwest to northwest winds will occur at times.

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Saturday, September 21, 2019

Weather Discusslon for Saturday Sept. 21, 2019

Normal high/ low temperatures for Sept 16-Sept 23  (high/low) Redding 89/58  Chico 89/54, Quincy 81/37, Chester 77/36, Susanville 76/41, Grass Valley 80/49, Weaverville 85/40, Mt. Shasta 76/42, Yreka 80/42, Alturas 78/33.
  
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

Sunny today with temperatures near normal.  North winds this morning and then southwest winds this afternoon.  Sunday the frontal system shown on the satellite picture below will move through the area.  We will see some clouds and cooler temperatures with a few showers over Siskiyou and Modoc counties.  Gusty north winds will move into the area late Sunday.

Monday through Wednesday high pressure will dominate our weather.  We will have sunny skies with temperatures 8 to 10 degrees above normal   Gusty north winds will continue through Wednesday afternoon.

We are beginning to see a more fall like weather pattern.   Thursday a low pressure area will begin to develop along and over the west coast.  Thursday we will still be sunny but temperatures will cool back to just above normal.   The low will be over the area Friday through the weekend  (see map below).  This system will bring partly cloudy to cloudy skies to the north state with a few showers.  Temperatures will drop to 10 to 15 degrees below normal.  Gusty southwest winds will occur.

Now the thing to watch.   The European model has consistently shown this low off the coast and more south.   If this occurred we would see a lot more precipitation.  

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Wednesday, September 18, 2019

Weather Discussion for Wednesday September 18, 2019

Normal high/ low temperatures for Sept 16-Sept 23  (high/low) Redding 89/58  Chico 89/54, Quincy 81/37, Chester 77/36, Susanville 76/41, Grass Valley 80/49, Weaverville 85/40, Mt. Shasta 76/42, Yreka 80/42, Alturas 78/33.
  
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 weak low pressure trough will move across Northern California today.  This system will bring cooler weather with showers and possible thunderstorms over the foothills and mountains and a few light showers possible in the valley.

Thursday afternoon high pressure will rebuild along and over the west coast.  Thursday through Saturday we will see mostly sunny skies with near normal temperatures and light wind.   Sunday a low pressure trough will pass by to our north with the southern end brushing the north end of California (see map below).  This system could trigger a few showers north of Redding.  Monday through most of next week looks sunny with above normal temperatures.
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Monday, September 16, 2019

Weather Discussion for Monday September 16, 2019

Normal high/ low temperatures for Sept 16-Sept 23  (high/low) Redding 89/58  Chico 89/54, Quincy 81/37, Chester 77/36, Susanville 76/41, Grass Valley 80/49, Weaverville 85/40, Mt. Shasta 76/42, Yreka 80/42, Alturas 78/33.
  
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 low pressure trough and frontal system are now moving across Northern California.  The heaviest precipitation has moved east of the valley, but there will be isolated showers and possible thunderstorms through this evening.   Tuesday will be partly sunny to partly cloudy.   Another weak low pressure trough will move through the area late Tuesday and Wednesday with scattered showers and thunderstorms mainly over the foothills and mountains. 

Thursday through the weekend high pressure will be back along the west coast (see map below).  The north state will be mostly sunny with temperatures back to normal or slightly above.  Gusty north winds will occur at times.

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Saturday, September 14, 2019

Weather Discussion for Saturday September 14, 2019

Normal high/ low temperatures for Sept 9-Sept 16  (high/low) Redding 90/60  Chico 90/54, Quincy 83/38, Chester 80/40, Susanville 79/43, Grass Valley 83/51, Weaverville 88/42, Mt. Shasta 78/43, Yreka 83/45, Alturas 79/36.
  
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

This morning's satellite picture (below) shows a low pressure area and frontal system entering the Pacific Northwest.  This system will split apart with the southern portion moving across Northern California late Sunday and Monday.  Today will be sunny with above normal temperatures and south winds in the afternoon.  Clouds begin to increase Sunday afternoon and then Monday will be partly cloudy to cloudy with showers and possible thunderstorms.  Temperatures will be below normal and gusty south winds will occur Sunday and Monday.  

Tuesday the north state will be partly sunny to partly cloudy with temperatures remaining below normal.  Late Wednesday another low pressure trough will approach the coast and split apart with the southern end moving across our area late Wednesday and Thursday (see map below).  Look for more showers and thunderstorms late Wednesday and Thursday.  Temperatures will continue below normal with gusty south to southwest winds at times.

Friday and Saturday look to be partly to mostly sunny with temperatures near normal.  Another splitting low pressure trough could more through the area late Sunday and Monday.

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Wednesday, September 11, 2019

Weather Discussion for Wednesday September 11, 2019

Normal high/ low temperatures for Sept 9-Sept 16  (high/low) Redding 90/60  Chico 90/54, Quincy 83/38, Chester 80/40, Susanville 79/43, Grass Valley 83/51, Weaverville 88/42, Mt. Shasta 78/43, Yreka 83/45, Alturas 79/36.
  
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 through Saturday a weak high pressure ridge will continue over the western U.S.   Northern California will see mostly clear skies with daytime temperatures a few degrees above normal.  Winds will be light.  

Late Saturday a low pressure trough will deepen along the coast.  This trough will move across Northern California late Sunday and Monday (see map below).  Clouds will be increase late Saturday, and Sunday through Monday afternoon we will have partly cloudy skies with showers and possible thunderstorms late Sunday and Monday.  Temperatures will be below normal and gusty south to southwest winds will occur Saturday and Sunday with gusty northwest winds Monday afternoon.

Tuesday through the end of next week.  High pressure will be along and over the west coast.  This means a return to sunny skies and above normal temperatures.

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Monday, September 9, 2019

Weather Discussion for Monday September 9, 2019

Normal high/ low temperatures for Sept 9-Sept 16  (high/low) Redding 90/60  Chico 90/54, Quincy 83/38, Chester 80/40, Susanville 79/43, Grass Valley 83/51, Weaverville 88/42, Mt. Shasta 78/43, Yreka 83/45, Alturas 79/36.
  
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 weak upper level low pressure trough is moving into the Pacific Northwest.  This system will bring clouds to Northern California today and could fire off a few thunderstorms over the northern mountains late today and Tuesday.  Temperatures today will be below normal with south to southwest winds in the afternoon.

Wednesday through the weekend a weak high pressure ridge will be over the western U.S. (see map below).  The northstate will be mostly clear except for a few high clouds at times from systems moving by to our north.  Temperatures will be 3 to 6 degrees above normal and winds will be light.

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Saturday, September 7, 2019

Weather Discussion for Saturday September 7, 2019

Normal high/ low temperatures for Sept 2-Sept 9  (high/low) Redding 94/60  Chico 93/57, Quincy 85/39, Chester 81/40, Susanville 82/45, Grass Valley 85/53, Weaverville 89/44, Mt. Shasta 81/45, Yreka 84/46, Alturas 82/39.
  
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 clouds over Northern California this morning are from the weak low pressure trough that is moving into western Canada and the Pacific Northwest (see satellite picture below).  This system could trigger an isolated shower or thunderstorm in the far north end of the state later today.   A slightly stronger low pressure trough or frontal system will move through the Pacific Northwest late Sunday and Monday (see map below).  This trough will bring a few clouds to the area and could trigger some showers or thunderstorms over the areas north of Redding, Monday and early Tuesday.  Gusty south winds will precede this trough.  Temperatures today through Tuesday will be a few degrees below normal.  

Wednesday through next weekend a weak high pressure ridge will push over our area.  We will mostly sunny skies with temperatures back to near or a few degrees above normal.  Winds will be light.  

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Wednesday, September 4, 2019

Weather Discussion for Wednesday September 4, 2019

Normal high/ low temperatures for Sept 2-Sept 9  (high/low) Redding 94/60  Chico 93/57, Quincy 85/39, Chester 81/40, Susanville 82/45, Grass Valley 85/53, Weaverville 89/44, Mt. Shasta 81/45, Yreka 84/46, Alturas 82/39.
  
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 shows a weak upper level low pressure area off the coast.  This low is moving slowly eastward and will pass across Northern California late tonight and Thursday.  The low will trigger a few thunderstom over the higher elevations of the north state later today and Thursday.  These is a chance of a thunderstorm in the valley north or Red Bluff.  Temperatures today will be a few degrees above normal.  Gusty south to southwest winds will occur in some areas this afternoon.

Friday we will have sunny skies with above normal temperatures.  Saturday and Sunday another weak low pressure area will be off the coast (see map below).  This system won't have much moisture but could cause isolated thunderstorms over the higher elevations. Temperatures Friday through the weekend will be normal to a few degrees below normal.  Winds will south to southwest in the afternoon.

Models indicate another weak upper level low pressure trough brushing the north state Monday and Tuesday.  This system could trigger isolated thunderstorms north of Redding.

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Monday, September 2, 2019

Weather Discussion for Monday Sept. 2, 2019

Normal high/ low temperatures for Sept 2-Sept 9  (high/low) Redding 94/60  Chico 93/57, Quincy 85/39, Chester 81/40, Susanville 82/45, Grass Valley 85/53, Weaverville 89/44, Mt. Shasta 81/45, Yreka 84/46, Alturas 82/39.
  
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 holding over the western U.S.  Today and Tuesday will be about like yesterday with sunny skies, temperatures 4 to 8 degrees above normal and light winds.

Wednesday a weak upper level low pressure area will form off the coast (see map below).  This low will trigger showers and thunderstorms over the higher elevations of the north state.  Temperatures will be near normal and winds will be south to southwest during the afternoon and gusty near thunderstorms.

Thursday the low will have moved east and high pressure will be over the area.  Thursday through Saturday looks sunny with above normal temperatures.  Another weak upper level low will try to form off the coast Sunday and Monday.

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