Wednesday, July 31, 2019

Weather Discussion for Wednesday July 31, 2019

Normal high/ low temperatures for July 29-Aug 5  (high/low) Redding 99/65,  Chico 97/59, Quincy 90/44, Chester 87/47, Susanville 89/51, Grass Valley 89/57, Weaverville 96/49, Mt. Shasta 87/50, Yreka 93/54, Alturas 90/44
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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

We are now through July and while we have had some hot weather...19 days 100 or higher...we have not had the really hot weather Redding is known for.  The hottest day has been 107.   The main reason is that the southwest high pressure area has not been able to backup to the west and push northward.  It is being kept to our east by a series of weak low pressure areas and associated southwest flow that are moving across Canadian (see map below).  The reason, I am not sure, but it could be the weak El Nino that is occurring.  This pattern is not going to change for the next week.

The inland areas of Northern California will be sunny.  Temperatures today and and Friday will be near normal and then warm up on the weekend and then drop back to normal early next week.  Winds will be light. Click here for latest infrared satellite picture
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Monday, July 29, 2019

Weather Discssion for Monday July 29, 2019

Normal high/ low temperatures for July 29-Aug 5  (high/low) Redding 99/65,  Chico 97/59, Quincy 90/44, Chester 87/47, Susanville 89/51, Grass Valley 89/57, Weaverville 96/49, Mt. Shasta 87/50, Yreka 93/54, Alturas 90/44
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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

Before I write another discussion that says little  change, a note of interest.   Every Monday I  update the normals at the top of the blog.  This week the temperatures are slightly cooler than last.  Climatologically we have past the hottest time of the year.

The high pressure ridge is still just to our east and as the map below shows it will continue in place for the at least the next 7 to 10 days.  Temperatures will start to cool today and then Tuesday through Friday be near normal or a little above.  Temperatures will warm a little on the weekend.  Winds will be light.

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Saturday, July 27, 2019

Weather Discussion for Saturday July 27, 2019

Normal high/ low temperatures for July 22-July 29  (high/low) Redding 100/67,  Chico 97/61, Quincy 91/45, Chester 88/47, Susanville 90/52, Grass Valley 90/58, Weaverville 96/51, Mt. Shasta 88/51, Yreka 94/54, Alturas 90/45
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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

As the map  below shows not much change from our summer weather pattern for the next week.   The high pressure ridge will be over the western U.S.....just to our east.   The inland areas of Northern California will continue mostly sunny.   Temperatures will be a few degrees above normal today through  Monday then cool to near normal and then warm back up by the weekend.  Winds will be light.

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Wednesday, July 24, 2019

Weather Discussion for Wednesday July 24, 2019

Normal high/ low temperatures for July 22-July 29  (high/low) Redding 100/67,  Chico 97/61, Quincy 91/45, Chester 88/47, Susanville 90/52, Grass Valley 90/58, Weaverville 96/51, Mt. Shasta 88/51, Yreka 94/54, Alturas 90/45
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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 hot weather will continue.   A strong high pressure ridge is over the western U.S. and will hold there for the next week (see map below).  This is our normal late July weather pattern.   The inland areas of Northern California will be sunny and hot with high temperatures 5 to 10 degrees above normal.  Winds will be light.  

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Monday, July 22, 2019

Weather Discussion for Monday July 22, 2019

Normal high/ low temperatures for July 22-July 29  (high/low) Redding 100/67,  Chico 97/61, Quincy 91/45, Chester 88/47, Susanville 90/52, Grass Valley 90/58, Weaverville 96/51, Mt. Shasta 88/51, Yreka 94/54, Alturas 90/45
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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

Hot week ahead.   High pressure is over the west and as the map below shows will hold for at least the next week.   The inland areas of Northern California will be mostly sunny.   Temperatures today and Tuesday will be a few degrees above normal and then Wednesday and Thursday temperatures will be 8 to 12 degrees above normal.  Temperatures will cool a little by the weekend.  Winds will be light. 
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Saturday, July 20, 2019

Weather Discussion for Saturday July 20, 2019

Normal high/ low temperatures for July 15-July 22  (high/low) Redding 99/68 Chico 97/61, Quincy 91/45, Chester 85/46, Susanville 90/51, Grass Valley 88/57, Weaverville 95/50, Mt. Shasta 86/51, Yreka 92/53, Alturas 89/45
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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 southwest summertime heat high pressure area has finally begin it's late July push northward.   Currently the high is over the central and eastern U.S.    However, as the map below shows during the next several days it will begin to move back tot he west.

The inland areas of Northern California will be sunny for the next week.  Temperatures will be slowly rising and by mid to late week be 4 to 8 degrees above normal.  Winds will be light.

Click here for latest infrared satellite picture
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Wednesday, July 17, 2019

Weather Discussion for Wednesday July 17, 2019

Normal high/ low temperatures for July 15-July 22  (high/low) Redding 99/68 Chico 97/61, Quincy 91/45, Chester 85/46, Susanville 90/51, Grass Valley 88/57, Weaverville 95/50, Mt. Shasta 86/51, Yreka 92/53, Alturas 89/45
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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

There will be some subtle changes in the weather over the next week.   The map below shows the high pressure ridge that has been over the Southwestern U.S. will push northward.   While the high will still be to our east it will allow a little warmer airmass to move over Northern California.  It will also push the low pressure area that has been over western Canada back to the west.

The next week the north state will be mostly clear.   Daytime temperatures will be near normal to a few degrees above normal and winds will be light.

Click here for latest infrared satellite picture
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Monday, July 15, 2019

Weather Discussion for Monday July 15, 2019

Normal high/ low temperatures for July 15-July 22  (high/low) Redding 99/68 Chico 97/61, Quincy 91/45, Chester 85/46, Susanville 90/51, Grass Valley 88/57, Weaverville 95/50, Mt. Shasta 86/51, Yreka 92/53, Alturas 89/45
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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 map below shows not much change expected.   The normal summertime high pressure area is over the Southwestern U.S.  However, the persistent low pressure area over western Canada has stopped it from pushing northward.   When this high pushes north during the summer is when we get our really hot weather.  

The next 7 days the inland areas of Northern California will be mostly sunny.   Temperatures will start off near normal and then rise to above normal by midweek and then cool to near normal by the weekend.  Winds will be light.

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control Information

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Saturday, July 13, 2019

Weather Discussion for Saturday July 13, 2019

Normal high/ low temperatures for July 8-July 15  (high/low) Redding 99/67 Chico 97/61, Quincy 88/43, Chester 85/44, Susanville 89/51, Grass Valley 88/57, Weaverville 94/50, Mt. Shasta 85/51, Yreka 91/53, Alturas 88/45
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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

Summertime weather pattern to continue over the west.   High pressure will be over the southwestern U.S. and the northern edge of it will keep the north state warm.   The next 7 to 10 days the inland areas of Northern California will continue sunny with temperatures normal to a few degrees above normal.  Winds will be light.
Click here for latest infrared satellite picture
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Wednesday, July 10, 2019

Weather Discussion for Wednesday July 10, 2019

Normal high/ low temperatures for July 8-July 15  (high/low) Redding 99/67 Chico 97/61, Quincy 88/43, Chester 85/44, Susanville 89/51, Grass Valley 88/57, Weaverville 94/50, Mt. Shasta 85/51, Yreka 91/53, Alturas 88/45
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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 overall weather pattern won't change much as the map below shows.   However, the high pressure over the southwestern U.S. will push a little northward which should bring temperatures back to normal or above the weekend.  Temperatures will cool a little early next week.  The next 7 to 10 days the inland areas of Northern California will be sunny with a few mid and high clouds at times.  Winds will be light.

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control Information

 Click on images below to enlarge them....



Monday, July 8, 2019

Weather Discussion for Monday July 8, 2019

Normal high/ low temperatures for July 8-July 15  (high/low) Redding 99/67 Chico 97/61, Quincy 88/43, Chester 85/44, Susanville 89/51, Grass Valley 88/57, Weaverville 94/50, Mt. Shasta 85/51, Yreka 91/53, Alturas 88/45
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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

Not a lot of change over the next week to 10 days.   The high pressure ridge is still over the southwestern and western U.S. with southwest flow over the Pacific and into Canada.   The next week Northern California will be mostly clear with a few mid and high clouds at times.  Temperatures today and Tuesday will be a little below normal and then warm to slightly above normal by the end of the week.  Winds will be light.

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control Information
 Click on images below to enlarge them....



Saturday, July 6, 2019

Weather Discussion for Saturday July 6, 2019

Normal high/ low temperatures for July 1-July 8  (high/low) Redding 97/66 Chico 95/60, Quincy 88/43, Chester 84/44, Susanville 86/49, Grass Valley 85/55, Weaverville 92/48, Mt. Shasta 83/49, Yreka 88/50, Alturas 86/42
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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 weather pattern we have been under and will be under for the next week is shown on the maps below.   High pressure is over the southwestern U.S. and is trying to push northward and link up with the high pressure area over Alaska.  This would form a fairly strong high pressure ridge along the west coast.  However, weak southwest to west flow across the Pacific is tending to split the ridge and suppress the southwestern high pressure area.  

This slightly increased southwest to west flow is common when we are in an El Nino pattern and we are currently in a weak El Nino.  

Bottom line the next week to 10 days we will have mostly clear skies with some afternoon cumulus over the mountains.  Temperatures today and Sunday will little above normal and then drop to a little below normal early next week and then warm up again by the end of the week.  

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control Information
 Click on images below to enlarge them....



Wednesday, July 3, 2019

Weather Discussion for Wednesday July 3, 2019

Normal high/ low temperatures for July 1-July 8  (high/low) Redding 97/66 Chico 95/60, Quincy 88/43, Chester 84/44, Susanville 86/49, Grass Valley 85/55, Weaverville 92/48, Mt. Shasta 83/49, Yreka 88/50, Alturas 86/42
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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 to try and build northward along the the west coast.   However, the very weak cutoff low that is over Western Canada is holding it down.   This will slowly change and by this weekend the high will be along the coast (see map below). 

Today and Thursday the inland areas of Northern California will be mostly sunny with some afternoon cumulus clouds over the far north end of the state. Temperatures will be a few degrees below normal and winds will be light.  Saturday through most of next week we will have sunny skies with temperatures slightly above normal and light winds.  

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control Information

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Monday, July 1, 2019

Weather Discussion for Monday July 1, 2019

Normal high/ low temperatures for July 1-July 8  (high/low) Redding 97/66 Chico 95/60, Quincy 88/43, Chester 84/44, Susanville 86/49, Grass Valley 85/55, Weaverville 92/48, Mt. Shasta 83/49, Yreka 88/50, Alturas 86/42
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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 the very weak cutoff low is is off the Pacific Northwest and Canadian coasts.   Since this system is cutoff from the jetstream it's movement will be very slow.  The main this this low does is keep  the high pressure area off the coast from pushing northward and heating things up.

Today through Thursday most of the inland areas of the north state will be sunny with a few afternoon clouds over the northern mountains.  Temperatures will continue a few degrees below normal and winds will be light.

Friday through early next week the high will push northward and we will see sunny skies and above normal temperatures (sde map below).

Click here for latest infrared satellite picture
Click here for latest Cal Trans Chain Control Information

Click on images below to enlarge them....