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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Wednesday, October 31, 2018

Weather Discussion for Wednesday October 31, 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.

Well this is not what I wanted to see.   High pressure continues along the coast and will hold there for the next week (see map below).  The jetstream will remain just to our north with frontal systems moving through the Pacific northwest.  Northern California will remain mostly clear with a few clouds at times from the systems moving by to  our north.  Temperatures will continue above normal and we will have periods of gusty north winds. 

The longer range models still show the ridge weakening somewhat after the 7th.
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Monday, October 29, 2018

Weather Discussion for Monday October 29, 2018

Normal high/ low temperatures for Oct 29-Nov 5  (high/low) Redding 70/44, Chico 72/43, Quincy 62/30, Chester 58/28, 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.

There are a few lingering clouds over the north end of the state this morning from the weak frontal system that moved through yesterday.  Starting Tuesday we are back in the same old pattern (see map below), high pressure along the coast and the jetstream to our north.  Tuesday through at least the start of next week the north state will be mostly clear with above normal temperatures.  Gusty north winds will occur in some areas Tuesday through midday Friday.

The longer range models show the ridge weakening a little around the 6th or 7th. 

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Saturday, October 27, 2018

Weather Discussion for Saturday October 27, 2018

Normal high/ low temperatures for Oct 22-Oct 29  (high/low) Redding 74/47, Chico 75/45, Quincy 66/31, Chester 62/30, Susanville 62/33, Grass Valley 67/40, Weaverville 69/33, Mt. Shasta 61/35, Yreka 64/34, Alturas 63/25

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.

This morning's satellite picture (below) shows a frontal system moving toward the coast.  Most of the energy of this system will be pushed to our north.   However, we will see clouds increase later today with light rain or showers north of a line from Ukiah to Redding to Mt. Lassen on Sunday.   Clouds will be clearing out Monday as high pressure rebuilds along the coast.   Tuesday through next weekend another strong high pressure ridge will be along the coast (see map below).   Temperatures today will cool to normal or a little below Sunday and Monday and then back above normal Tuesday through the weekend.  Gusty north winds will occur from Tuesday afternoon through midday Friday. 

The Old Forecaster

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Wednesday, October 24, 2018

Weather Discussion for Wednesday October 24, 2018

Normal high/ low temperatures for Oct 22-Oct 29  (high/low) Redding 74/47, Chico 75/45, Quincy 66/31, Chester 62/30, Susanville 62/33, Grass Valley 67/40, Weaverville 69/33, Mt. Shasta 61/35, Yreka 64/34, Alturas 63/25

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.

The high pressure ridge has weakened.   This morning's satellite picture (below) shows frontal systems are moving by to our north.   Today through Saturday the north state will be partly to mostly sunny with a few clouds at times from the systems moving by to our north.  Temperatures will be above normal and winds will be light.

Sunday a slightly stronger low pressure trough and frontal system will move through the area (see map below).  This system will bring clouds and cooler temperatures to the area.  Light rain or showers will occur along the coast north of Fort Bragg, the valley could see a few light sprinkles from Redding northward, the Sierra will see showers north of Plumas county.  

Monday the high pressure trough pops back up and we will have another 3 to 5 days of sunny mild weather. 

The Old Forecaster

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Monday, October 22, 2018

Weather Discussion for Monday October 22, 2018

Normal high/ low temperatures for Oct 22-Oct 29  (high/low) Redding 74/47, Chico 75/45, Quincy 66/31, Chester 62/30, Susanville 62/33, Grass Valley 67/40, Weaverville 69/33, Mt. Shasta 61/35, Yreka 64/34, Alturas 63/25

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.

The high pressure ridge is a little weaker and has moved eastward.   But...it is not going as far east as was expected when I wrote the last blog.   This means weaker frontal systems.   Today will be sunny tnen late Tuesday and early Wednesday a weak front will brush the far north end of the state.  This system will bring a few clouds to the area with showers on the north coast and near the Oregon border.   Another weak system will brush the area late Wednesday and Thursday with showers on the north coast.   Temperatures will cool and Tuesday through Thursday will be near normal.

Friday through the weekend high pressure rebuild along the coast.  The jetstream will move back to the north and we will see a return of clear skies with above normal temperatures.

The Old Forecaster

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Saturday, October 20, 2018

Weather Discussion for Saturday October 20, 2018

Normal high/ low temperatures for Oct 15-Oct 22  (high/low) Redding 79/49, Chico 79/46, Quincy 71/31, Chester 66/30, Susanville 66/34, Grass Valley 72/42, Weaverville 74/34, Mt. Shasta 65/35, Yreka 69/35, Alturas 66/27

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.

A high pressure ridge is still over the west coast.  However, the ridge is weakening and slowly moving eastward.  Today through Monday Northern California will be mostly clear.   Temperatures will slowly cool, but still be above normal.  Winds will be light.

Tuesday through Friday the low pressure area in the Gulf of Alaska will deepen and this will push the jetstream southward.   Unfortunately, not quite far enough bring wet weather to the north state (see map below).  A weak frontal system will move through the area late Tuesday and Wednesday.  We will see a few clouds from this system with a few light showers over the northwest corner of the state.  Temperatures will cool to near normal.  Thursday and early Friday a slightly stronger front will move through.   This system will bring light showers to the north coast and areas north of Redding. 

After this system high pressure will rebuild over the west coast.

The Old Forecaster

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