Wednesday, November 28, 2018

Weather Discussion for Wednesday November 28, 2018

Normal high/ low temperatures for Nov 26-Dec 3  (high/low) Redding 58/39, Chico 59/38, Quincy 49/26, Chester 46/24, Susanville 47/25, Grass Valley 56/34, Weaverville 51/31, Mt. Shasta 47/27, Yreka 48/27, 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.

The storm that brought rain to the area yesterday is moving eastward, while off the coast another low pressure area has formed and is headed toward Northern and Central California.  Expected scattered showers this morning and then rain over the area this afternoon through midday Thursday.  Locally heavy precipitation is expected south of Redding.  The snow levels will be 5000 to 6000 feet.  

The precipitation will turn to showers late Thursday morning and then taper off during the afternoon.  A colder low pressure area will move into the area late Friday and Saturday (see map below).  This system  will bring rain to all of the north state with snow levels 3000 feet north and 4500 feet south. 

The rain will end by Saturday afternoon and evening and skies will be partly sunny to partly cloudy Sunday and Monday.  Another low pressure area will move into our area Tuesday and Wednesday for more rain.

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Monday, November 26, 2018

Weather Discussion for Monday November 26, 2018

Normal high/ low temperatures for Nov 26-Dec 3  (high/low) Redding 58/39, Chico 59/38, Quincy 49/26, Chester 46/24, Susanville 47/25, Grass Valley 56/34, Weaverville 51/31, Mt. Shasta 47/27, Yreka 48/27, 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 low pressure trough has developed in the Gulf of Alaska and is moving eastward.   The trough has generated several frontal systems which will pass through Northern California Tuesday through Thursday.   The first of these systems will move through Tuesday with rain and gusty south winds.  Snow levels will be 5000 to 6000 feet.  The precipitation will turn to showers Tuesday night.  The next system moves through Wednesday and early Thursday with more rain and gusty south winds.  The snow level will be a little lower...4000 feet in the north and 5000 feet south.  Thursday afternoon the rain turns to scattered showers. 

Friday there will be a break between storms and the north state will be partly cloudy to  partly sunny.  A colder low pressure area will move through our area Saturday (see map below).  This system will bring more rain and gusty winds.  Snow levels will be 3000 feet north and 4000 feet south.  Sunday and Monday a weak high pressure ridge will bring drying to the north state.

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Saturday, November 24, 2018

Weather Discussion for Saturday November 24, 2018

Normal high/ low temperatures for Nov 19-Nov 26  (high/low) Redding 61/39, Chico 62/38, Quincy 52/26, Chester 47/25, Susanville 49/25, Grass Valley 57/34, Weaverville 53/31, Mt. Shasta 49/30, Yreka 50/27, Alturas 49/21

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.

Today through Monday the jetstream will be north of our area and we will see partly sunny to partly cloudy skies with near normal temperatures and light winds.  

Tuesday the jetstream drops back southward over Northern California and will hold there through Friday (see map below).  The first frontal system will move through the area Tuesday with light to moderate rain and gusty south winds.  Snow levels will be 5000 to 6000 feet north and 6000 to 7000 feet south.  Tuesday night and early Wednesday will be partly cloudy with a few showers.  Wednesday night and Thursday a stronger system will bring moderate to locally heavy precipitation to the north state with gusty south to southwest winds.  Snow levels will remain high.  Friday a weaker system will bring showers tot he area and then on the weekend we will return to partly sunny skies. 

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Wednesday, November 21, 2018

Weather Discussion for Wednesday November 21, 2018


Normal high/ low temperatures for Nov 19-Nov 26  (high/low) Redding 61/39, Chico 62/38, Quincy 52/26, Chester 47/25, Susanville 49/25, Grass Valley 57/34, Weaverville 53/31, Mt. Shasta 49/30, Yreka 50/27, Alturas 49/21

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 first storm or frontal system is now spreading  rain across the state.  Rain is expected over the area today with showers tonight.   Snow levels will start high but will drop to 4500 to 5500 feet north and 6000 feet south by late this afternoon.  Gusty south winds will occur in some areas.  Thursday we will have partly cloudy to cloudy skies with showers mainly over the foothills and mountains.  Snow levels will remain around 5000 feet.

Thursday night and Friday the next system moves into the area.  This storm will bring moderate to locally heavy precipitation to the north state.  Snow levels will rise to above 6000 feet and gusty south to southwest winds are expected.  The storm will be east of our area Saturday.  Saturday skies will be partly cloudy with some lingering mountain showers in the morning.  

Sunday and Monday skies will be partly to mostly sunny with light winds.

Things could get interesting next week.  The map below is the current forecast.   The jetstream is running across the Pacific and right over Northern California.  If this pattern verifies we will see very wet weather Tuesday through Friday. 

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Monday, November 19, 2018

Weather Discussion for Monday November 19, 2018

***RAIN***


Normal high/ low temperatures for Nov 19-Nov 26  (high/low) Redding 61/39, Chico 62/38, Quincy 52/26, Chester 47/25, Susanville 49/25, Grass Valley 57/34, Weaverville 53/31, Mt. Shasta 49/30, Yreka 50/27, Alturas 49/21

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 that has been over the west coast is weakening.   Today and Tuesday Northern California will be partly sunny and smoky with increasing clouds  late Tuesday.   Temperatures will be a few degrees above normal.  Southerly winds will increase Tuesday afternoon.

Wednesday through Saturday a low pressure trough will be along the west coast (see map below).  This will send several storm system across the north state.   Rain will spread over the area Wednesday turning to showers Wednesday night.  Snow levels will start out high but drop to 4000 to 5000 feet by Wednesday afternoon.  This system will bring moderate precipitation to the area along with gusty south to southwest winds. Thursday morning there will be scattered showers.   The next storm system will move through Thursday afternoon and Friday with moderate to locally heavy rain.   Snow levels will rise to above 6000 feet.  Gusty south winds are expected.  Saturday we will have partly cloudy to cloudy skies with scattered showers.  Snow levels will be around 5000 feet.  Sunday and Monday look partly cloudy to partly sunny. 

It looks like more storms could move through the mid part of next week. 

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Saturday, November 17, 2018

Weather Discussion for Saturday November 17, 2018

***RAIN COMING***


Normal high/ low temperatures for Nov 12-Nov 19  (high/low) Redding 64/41, Chico 64/39, Quincy 54/29, Chester 50/26, Susanville 51/28, Grass Valley 58/38, Weaverville 55/32, Mt. Shasta 52/31, Yreka 52/29, Alturas 51/23

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 over the west coast but will start to rapidly weaken Monday.  Today and Sunday we will have partly sunny (smoky) skies with above normal temperatures and light winds.   Monday we will see more clouds and cooler temperatures. 

Tuesday through next weekend there will be a low pressure trough along the coast (see map below).  During this time several frontal systems will move across the north state.  The first will bring rain to the area Tuesday night and Wednesday.  Thursday we see showers with another storm system Thursday night and Friday.  The weekend looks like periods of rain or showers.  Snow levels will start off at 5500 to 6500 feet but will drop to 4000 to 5000 feet by late Wednesday and will remain around that level  through the weekend.  Gusty south to southwest winds will precede each storm system.

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Wednesday, November 14, 2018

Weather Discussion for Wednesday November 14, 2018

Normal high/ low temperatures for Nov 12-Nov 19  (high/low) Redding 64/41, Chico 64/39, Quincy 54/29, Chester 50/26, Susanville 51/28, Grass Valley 58/38, Weaverville 55/32, Mt. Shasta 52/31, Yreka 52/29, Alturas 51/23

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 is still along and over the west coast.  However, it continues to slowly weaken.  Through the weekend Northern California will be partly sunny with some mid and high cloudiness (smoky near the Camp Fire).  Temperatures will continue a few degrees above normal and winds will be light.

Next week it looks like a low pressure trough will be approaching the coast (see map below).  If it holds together it could bring  rain to the north state around Tuesday and Wednesday.   I say "if" because sometimes these first troughs after a ridge tend to split as they approach the coast....

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Monday, November 12, 2018

Weather Discussion for Monday November 12, 2018

Normal high/ low temperatures for Nov 12-Nov 19  (high/low) Redding 64/41, Chico 64/39, Quincy 54/29, Chester 50/26, Susanville 51/28, Grass Valley 58/38, Weaverville 55/32, Mt. Shasta 52/31, Yreka 52/29, Alturas 51/23

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.

Not much change in the weather for the next 5 days.   The high pressure ridge will remain over and along the west coast.   We will have mostly clear skies with above normal temperatures and relatively light winds.  The models shows the ridge weakening this weekend (see map below).   The pattern shown on that map would not be a really wet pattern but could bring showers to the north end of the state early next week.   Longer range models show the jetstream sinking further south later next week.

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Saturday, November 10, 2018

Weather Discussion for Saturday November 10, 2018

Normal high/ low temperatures for Nov 5-Nov 12  (high/low) Redding 66/42, Chico 68/42, Quincy 59/29, Chester 54/27, Susanville 55/29, Grass Valley 63/39, Weaverville 60/33, Mt. Shasta 53/31, Yreka 57/31, Alturas 55/24

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 strong high pressure ridge is still along the west coast.   Sunny today with another round of gusty north and northeast winds tonight and Sunday.   During the next week it looks like the ridge will weaken.   However, the map below shows that the jetstream will still be north of California.  At this time look for a little cooling Wednesday through the weekend with  few mid and high clouds at times. 

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Wednesday, November 7, 2018

Weather Discussion for Wednesday November 7, 2018

Normal high/ low temperatures for Nov 5-Nov 12  (high/low) Redding 66/42, Chico 68/42, Quincy 59/29, Chester 54/27, Susanville 55/29, Grass Valley 63/39, Weaverville 60/33, Mt. Shasta 53/31, Yreka 57/31, Alturas 55/24

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 persistent high pressure ridge continues along the coast.  This means continued mostly clear skies for the next week with a few high clouds at times.   Temperatures will continue above normal and there will be locally gusty north winds.  

The only thing of interest is the difference in the models.  The map below is from the GFS (US) model.   The European model shows a much flatter or weaker ridge with the jetstream entering the coast over Oregon.

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Monday, November 5, 2018

Weather Discussion for Monday November 5, 2018

Normal high/ low temperatures for Nov 5-Nov 12  (high/low) Redding 66/42, Chico 68/42, Quincy 59/29, Chester 54/27, Susanville 55/29, Grass Valley 63/39, Weaverville 60/33, Mt. Shasta 53/31, Yreka 57/31, Alturas 55/24

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 change....High pressure is along and off the coast and will hold there for the next 7 to 10 days (see map below).  We will continue to have mostly clear skies with high clouds at times from systems moving by to our north.   There will continue to be periods of gusty north winds.  

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Saturday, November 3, 2018

Weather Discussion for Saturday November 3, 2018

Normal high/ low temperatures for Oct 29-Nov 5  (high/low) Redding 70/44, Chico 72/43, Quincy 62/30, Chester 58/2 8, Susanville 59/31, Grass Valley 65/39, Weaverville 64/33, Mt. Shasta 56/32, Yreka 60/32, Alturas 58/25

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 parked along and just off the California coast.   The map below shows that while the high will weaken a little it isn't moving.   Next 7 to 10 days look sunny with a few high clouds and above normal temperatures.  Periods of gusty north to northeast winds are expected during the next week.  

Now the bad news.   The GFS (US) forecast model doesn't show any change in pattern through the 21st.   The European breaks the high pressure ridge down after the 11th or 12th. 

The longer range models still show the ridge weakening somewhat after the 7th.
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