Wednesday, November 30, 2016

Weather Discussion for Wednesday November 30, 2016

Normal high and low temperatures for Nov 28-Dec 5 (high/low)...Redding 58/38, Chico 59/37, Quincy 49/26, Chester 45/24, Susanville 46/25, Grass Valley 56/33, Weaverville 50/30, Mt. Shasta 47/27, Yreka 48/27, Alturas 47/20

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

A weak low pressure trough and frontal system are now moving across Northern California.  Most precipitation has been over the higher elevations with a few light showers in the valley.   Snow levels are around 4000 feet.  Skies will be clearing later today as the low moves into Nevada and drops southward.    Thursday and Friday high pressure will be along the coast with a low pressure area over the southwestern U.S.   The northstate will be mostly sunny with gusty north to northeast winds and normal temperatures.  

The offshore high pressure ridge will move back to the west Saturday.  Sunday through Tuesday we will be under a pattern like the one shown on the map below.   While the jetstream is over or south of our area it is dropping from north to south and storms moving along it won't have a chance to pickup much moisture.   Clouds will increase Saturday with a weak storm late Saturday and Sunday.  Precipitation amounts will be light with snow levels 3000 to 4000 feet.   A slightly stronger system will move through Sunday night and Monday.  This will be a colder storm with snow levels 2000 to 3000 feet.   

There will be a break Tuesday and then a stronger frontal system will move in from the west Wednesday.

The Old Forecaster

Click on images below to enlarge them...



Monday, November 28, 2016

Weather Discussion for Monday November 28, 2016

Normal high and low temperatures for Nov 28-Dec 5 (high/low)...Redding 58/38, Chico 59/37, Quincy 49/26, Chester 45/24, Susanville 46/25, Grass Valley 56/33, Weaverville 50/30, Mt. Shasta 47/27, Yreka 48/27, Alturas 47/20

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

The low pressure trough continues to move slowly to our east while high pressure builds along the coast.   Clouds will be decreasing during the day but there will be a few light showers over the higher elevations until late afternoon.   Tuesday we will see mostly sunny skies with near normal temperatures and light winds.  '
'
Wednesday a low pressure trough will move over the off shore high pressure ridge and drop southward into Nevada and the Southwestern U.S.   Wednesday and early Thursday the north state will be partly cloudy with a few light showers mainly over the coast, and coastal and northern mountains, with the chance of sprinkle elsewhere.

Thursday afternoon through Saturday a strong high pressure ridge will be along the coast with a low pressure area over the southwestern U.S. (see map below).   Northern California will be caught between the two and will have mostly sunny skies with strong gusty north to northeast winds.   Temperatures will be normal or slightly above.

Sunday a low pressure trough will weaken the high and move into the Pacific Northwest.  This system will bring clouds to the north state with a chance of light rain over the higher elevations and the north end of the valley.

The Old Forecaster

Click on images below to enlarge them...



Saturday, November 26, 2016

Weather Discussion for Saturday November 26, 2016

Normal high and low temperatures for Nov 21-Nov 28 (high/low)...Redding 59/38, Chico 61/37, Quincy 52/26, Chester 47/25, Susanville 49/26, Grass Valley 57/33, Weaverville 52/30, Mt. Shasta 47/27, Yreka 49/27, Alturas 48/20

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

The low pressure trough is now just off the coast and moving slowly eastward.   Today Northern California will have rain with the snow levels lowering to 3000 feet in the north and 4000 feet south.  Gusty south winds will occur in some areas.   Sunday and Monday the precipitation turns to showers and will be mainly over the foothills and mountains, with partly cloudy to partly sunny skies in the valley.  Snow levels will still be near 3000 feet.  

Tuesday and Wednesday the trough will be east of our area and high pressure will begin to rebuild along the coast. (see map below).   Tuesday and most of Wednesday we will see mostly clear skies and temperatures will be normal of a few degrees above.  Late Wednesday and Thursday we will see a few clouds as a low pressure area moves by to our north and drops southward into Nevada.  

Thursday through the weekend high pressure will be along the coast with a low pressure area over Nevada and the Southwest U.S.   The north state will be sunny with gusty north to northeast winds. 

The Old Forecaster

Click on images below to enlarge them...



Wednesday, November 23, 2016

Weather Discussion for Wednesday November 23, 2016

Normal high and low temperatures for Nov 21-Nov 28 (high/low)...Redding 59/38, Chico 61/37, Quincy 52/26, Chester 47/25, Susanville 49/26, Grass Valley 57/33, Weaverville 52/30, Mt. Shasta 47/27, Yreka 49/27, Alturas 48/20

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

Showers will be ending during the day as the low pressure trough over the area moves eastward.   Snow levels are down to 3000 feet north and 4000 feet south.  The next low pressure trough and frontal system will move through the Thursday afternoon and Friday.  This system now looks a little weaker than earlier forecast.   Expect rain to spread over the area late Thursday and Friday.  Snow levels will be around 4000 feet.

A stronger low pressure area will move slowly across Northern California Friday night and Saturday, with periods of rain...snow levels will be 3000 to 3500 feet. (see map below),  Gusty south winds will occur late Friday and Saturday.   The precipitation turns to showers Sunday morning and then ends by afternoon and evening.

There will be a break between systems and then another storm will move into the area late Tuesday and Wednesday.  

The Old Forecaster

Click on images below to enlarge them...



Monday, November 21, 2016

Weather Discussion for Monday November 21, 2016

Normal high and low temperatures for Nov 21-Nov 28 (high/low)...Redding 59/38, Chico 61/37, Quincy 52/26, Chester 47/25, Susanville 49/26, Grass Valley 57/33, Weaverville 52/30, Mt. Shasta 47/27, Yreka 49/27, Alturas 48/20

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

The low pressure trough that was off the coast is now moving eastward.   Today there will still be isolated showers over the higher elevations with partly sunny to sunny skies over the valley.

We will continue to see low pressure troughs and frontal systems pass across our area ever 2 to 3 days for the next 7 to 10 days.   The next system will move across the north state late Tuesday and early Wednesday.  Precipitation will start Tuesday afternoon and continue through Wednesday afternoon.   This system won't be a major precipitation producer but will drop snow levels to 3500 feet north and 4500 feet south.

There will be a short break between systems late Wednesday and Thursday.   A stronger low pressure trough  will be along the west coast Thursday afternoon through Friday (see map below).  Precipitation will start Thursday afternoon and continue through Friday.   The rain and snow will be moderate to heavy at times late Thursday and early Friday.   Snow levels will be 4500 to 5500 feet.  Gusty south winds will occur Thursday afternoon and Friday.

Another brief break will occur Saturday and then another low pressure trough will move through Saturday night and Sunday. 

The Old Forecaster

Click on images below to enlarge them...




Saturday, November 19, 2016

Weather Discussion for Saturday November 19, 2016

Normal high and low temperatures for Nov 14-Nov 21 (high/low)...Redding 63/40, Chico 64/39, Quincy 53/29, Chester 48/25, Susanville 50/29, Grass Valley 59/36, Weaverville 55/32, Mt. Shasta 49/30, Yreka 52/29, Alturas 50/23

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

A low pressure area is off the coast and will send bands of clouds and precipitation across Northern California today and Sunday.  Today and Sunday we will see periods of rain, heavy at times.   Snow levels this morning are down to 3000 feet in the north and higher as you go southward.   Snow levels will rise to 4500 to 5000 feet later today and Sunday.  Gusty south winds will occur in some areas today.  Monday the low pressure area will move eastward.   The valley will see partly cloudy to partly sunny skies Monday but there will be a few lingering showers over the higher elevations Monday. 

Late Tuesday and Wednesday a weak frontal system will move across the north state with clouds and light rain or showers.  Snow levels will be 5000 to 6000 feet.  Thursday afternoon and Friday a stronger storm system will move through the area with more rain. (see map below).  Snow levels Thursday afternoon will be 4000 feet north and 5500 feet south.   Another storm system will move through the area Saturday afternoon and Sunday. 

The Old Forecaster

Click on images below to enlarge them...




Wednesday, November 16, 2016

Weather Discussion for Wednesday November 16, 2016

Normal high and low temperatures for Nov 14-Nov 21 (high/low)...Redding 63/40, Chico 64/39, Quincy 53/29, Chester 48/25, Susanville 50/29, Grass Valley 59/36, Weaverville 55/32, Mt. Shasta 49/30, Yreka 52/29, Alturas 50/23

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

An upper level low pressure trough is still over the west coast but will be east of our area by evening.  This trough will trigger a few showers today over the higher elevations.  The valley will be mostly sunny with some afternoon clouds.  The trough has pushed a cooler airmass into the area and tonight and with clearing skies tonight temperatures will drop with the north valley reaching the lower 30s.  

Thursday and most of Friday we will see mostly sunny skies with near normal temperatures and light winds.  Late Friday a low pressure trough and frontal system will be approaching the coast.   This system will bring rain to Northern California Friday night and Saturday. (see map below).  Snow levels will be 5000 to 6000 feet and gusty south winds are expected Saturday.  The low pressure trough will still be over the area Sunday and this will bring scattered showers to the area.  

There will be a break between systems Monday and early Tuesday and then more rain Tuesday and Wednesday as another frontal system move through.

The Old Forecaster

Click on images below to enlarge them...



Monday, November 14, 2016

Weather Discussion for Monday November 14, 2016

Normal high and low temperatures for Nov 14-Nov 21 (high/low)...Redding 63/40, Chico 64/39, Quincy 53/29, Chester 48/25, Susanville 50/29, Grass Valley 59/36, Weaverville 55/32, Mt. Shasta 49/30, Yreka 52/29, Alturas 50/23

This blog will be issued every Monday 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 into the Pacific Northwest with the southern portion trailing back to the southwest and off the coast.  Clouds will be increasing  today as the front sags slowly southward.  Light rain is expected over Northern California tonight and Tuesday.   A low pressure trough will be over the area Wednesday and this will continue scattered showers mainly over the foothills and mountains.  

Thursday and Friday we will have partly to mostly sunny skies with near normal temperatures and light winds.  Saturday another low pressure trough will be along coast (see map below).  This will bring more wet weather to Northern California Saturday through Monday

The Old Forecaster

Click on images below to enlarge them...



Saturday, November 12, 2016

Weather Discussion for Saturday November 12, 2016

Normal high and low temperatures for Nov 7-Nov 14 (high/low)...Redding 66/43, Chico 67/40, Quincy 56/29, Chester 51/27, Susanville 53/29, Grass Valley 60/37, Weaverville 57/32, Mt. Shasta 52/32, Yreka 54/30, Alturas 53/24

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

A weakening frontal system is now moving across Northern California.   The system will be east of our area by afternoon and skies will be clearing.  Sunday and Monday we will have mostly sunny skies with slightly above normal temperatures and light winds.  

Tuesday a low pressure trough will be approaching the coast (see map below).   This system will bring light rain to the north state Tuesday with showers on Wednesday.  Snow levels will drop to around 5000 feet by Tuesday night. 

We will have a brief break Friday and then another low pressure trough and frontal system will move over the area for the weekend.

The Old Forecaster

Click on images below to enlarge them...




Wednesday, November 9, 2016

Weather Discussion for Wednesday November 9, 2016

Normal high and low temperatures for Nov 7-Nov 14 (high/low)...Redding 66/43, Chico 67/40, Quincy 56/29, Chester 51/27, Susanville 53/29, Grass Valley 60/37, Weaverville 57/32, Mt. Shasta 52/32, Yreka 54/30, Alturas 53/24

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

High pressure still holding over the western U.S.   Today and Thursday Northern California will be mostly sunny with a few mid and high clouds.   Temperatures will be above normal and winds will be light. 

Clouds will be increasing Friday as the high weakens slightly and a frontal system approaches the coast.  This front will move across the north state Friday night and early Saturday.  The system will bring light rain and showers to the north coast and coastal and northern mountains, with the chance of a sprinkle elsewhere.  The precipitation will end by Saturday afternoon, and Sunday looks partly cloudy and warmer.  

The forecast models have now changed and are in pretty good agreement that starting Monday the high will weaken and move eastward and this will allow the jetstream to drop southward and closer to the north state. (see map below). Clouds will increase Monday and then a frontal system will move across our area Tuesday and Wednesday with light rain and gusty south winds.  Snow levels will drop to 5000 feet by Wednesday afternoon.

The Old Forecaster

Click on images below to enlarge them...



Monday, November 7, 2016

Weather Discussion for Monday November 7, 2016

Normal high and low temperatures for Nov 7-Nov 14 (high/low)...Redding 66/43, Chico 67/40, Quincy 56/29, Chester 51/27, Susanville 53/29, Grass Valley 60/37, Weaverville 57/32, Mt. Shasta 52/32, Yreka 54/30, Alturas 53/24

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

Today and Tuesday will be partly cloudy to partly sunny as high pressure is to our east and frontal systems move across the Pacific and then are deflected northward as they reach the coast.  Wednesday and Thursday the north state will be mostly sunny with above normal temperatures and light winds.

Friday another frontal system reaches the coast and bumps into the high pressure ridge. (see map below).  This system will be about like the one we had over the weekend and will bring light rain or a few showers to Northern California Friday and early Saturday.  

It looks like after next weekend the high pressure ridge will move back a little more to the west and over our area.   This would bring sunny and mild weather to Northern California next week,

The Old Forecaster

Click on images below to enlarge them...



Saturday, November 5, 2016

Weather Discussion for Saturday November 5, 2016

Normal high and low temperatures for Oct 31-Nov 7 (high/low)...Redding 69/44, Chico 71/42, Quincy 61/29, Chester 57/29, Susanville 57/30, Grass Valley 65/39, Weaverville 63/32, Mt. Shasta 55/32, Yreka 58/31, Alturas 58/24

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

Comparing this morning's satellite picture and the forecast map (below), show little change for the next week.  High pressure will remain just to our east.   A strong jetstream will continue across the Pacific...entering the west coast to our north.  Frontal systems, like the one currently off the coast, will weaken rapidly as then move inland.  The front will move across Northern California tonight and Sunday morning.  This system will bring light rain or showers to Northern California...although the Bay area and valley south of Red Bluff will probably see just a sprinkle.  

Partly Sunny Sunday afternoon through early Tuesday.   Temperatures Monday and Tuesday will be a little above normal and winds will be light.   Tuesday night another very weak front goes by to our north.   We will see a few clouds with  a chance of showers over the northwest corner of the state.   Thursday and mostly Friday back to partly sunny with above normal temperatures.  Friday night and early Saturday a stronger system will move through with a chance of light rain over all of the north state. 

The Old Forecaster

Click on images below to enlarge them...



Wednesday, November 2, 2016

Weather Discussion for Wednesday November 2, 2016

Normal high and low temperatures for Oct 31-Nov 7 (high/low)...Redding 69/44, Chico 71/42, Quincy 61/29, Chester 57/29, Susanville 57/30, Grass Valley 65/39, Weaverville 63/32, Mt. Shasta 55/32, Yreka 58/31, Alturas 58/24

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.

Mostly sunny today with temperatures a little above normal and light winds.   We will continue to be under a weather pattern where high pressure is over the western U.S.    This will weaken frontal systems as they approach the coast.  This morning's satellite picture (below) shows a front approaching the coast.  This system will bring a few clouds to the north state tonight and early Thursday with a chance of a light shower on the north coast.  Friday and most of Saturday we will see partly to mostly sunny skies with slightly above normal temperatures.   Saturday night another weakening frontal system will move across Northern California. (see map below).   This system will be slightly stronger and should bring scattered light showers to Northern California Saturday night and early Sunday.  

Skies will be clearing Sunday afternoon and evening.   Monday and most of Tuesday will be dry and mild.  Late Tuesday and Wednesday another weak front will move across the area. This system could bring a few light showers to the north coast and northern mountains.

The Old Forecaster

Click on images below to enlarge them...