Monday, January 15, 2018

Weather Discussion for Monday January 15, 2018

Normal high and low temperatures for Jan 15-Jan 22  (high/low) Redding 56/37, Chico 55/36, Quincy 46/23, Chester 43/20, Susanville 41/21, Grass Valley 55/33, Weaverville 48/28, Mt. Shasta 46/ 26, Yreka 45/24, Alturas 42/17

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 weakening and moving eastward.   The first in what will be series of storms or frontal systems is approaching the coast.  This won't be a strong storm since it will expend a lot of its energy pushing the ridge out.   Expect light showers on the coast and coastal mountains today, with rain spreading over Northern California tonight and early Tuesday.  Snow levels will be 5000 to 6000 feet.  The precipitation will turn to showers Tuesday morning and end by afternoon.

Wednesday will be partly cloudy and then Wednesday night and early Thursday the next system reaches the coast.  This will be a stronger storm with rain expected Wednesday night and Thursday with showers Friday.   Snow levels will be 5000 feet Thursday lowering to 3000 feet north and 4000 feet south by Friday.  Gusty south winds will occur Wednesday afternoon and early Thursday.

Saturday afternoon another low pressure area will be approaching the coast (see map below).  This system will bring rain to our area Saturday evening through Sunday with showers Monday.  Snow levels will be 2500 feet north and 3500 feet south.  

The Old Forecaster

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Saturday, January 13, 2018

Weather Discussion for Saturday January 13, 2018

Normal high and low temperatures for Jan 8-Jan 15  (high/low) Redding 55/36, Chico 54/36, Quincy 46/23, Chester 42/21, Susanville 41/21, Grass Valley 53/33, Weaverville 46/27, Mt. Shasta 44/ 26, Yreka 44/25, Alturas 41/16

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 over the west coast.  Today will be mostly sunny with some high clouds.  Daytime temperatures will be above normal and winds will be light.  Clouds will begin to increase Sunday afternoon as a major change in the weather pattern begins. 

The high will weaken and move east and next week we will be under a weather pattern like the one shown on the map below.   A low pressure trough will be along the coast with the jetstream running across Northern California.  Frontal systems will form off the coast move through the north state.   The first system will bring rain to the area Monday and Tuesday.  The snow levels will start out at 5000 to 6000 feet but will lower to 4000 feet by Tuesday.  Gusty south winds are expected Monday afternoon and early Tuesday.

There will be a break between systems Wednesday and then the next storm will bring precipitation to Northern California Wednesday night through early Friday.  Snow levels with this system will be 3500 feet north and 4500 feet south.  Gusty south winds will occur over exposed areas. 

There will be another break Friday afternoon and Saturday and then another storm will hit the area Saturday night and Sunday.

The Old Forecaster

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Wednesday, January 10, 2018

Weather Discussion for Wednesday January 10, 2018

Normal high and low temperatures for Jan 8-Jan 15  (high/low) Redding 55/36, Chico 54/36, Quincy 46/23, Chester 42/21, Susanville 41/21, Grass Valley 53/33, Weaverville 46/27, Mt. Shasta 44/ 26, Yreka 44/25, Alturas 41/16

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 beginning to rebuild along and off the west coast.  There is still a lot of moisture over Northern California and this will result in a few light showers this morning over the areas east of the valley.  Skies will be partly cloudy to partly sunny by afternoon.   Thursday a low pressure trough and frontal system will move through the Pacific Northwest.  The southern end of this system will bring clouds to the north state with scattered light showers north of Redding.

Friday through Sunday high pressure will be over the west coast.   We will see partly to mostly sunny skies with above normal daytime temperatures and light winds.

Still looking for a return of winter weather next week.  The jetstream will increase across the Pacific and the high pressure ridge will weaken (see map below).   The first storm will reach the coast Monday night and Tuesday.  This system will bring light precipitation to Northern California with snow levels 5000 to 6000 feet.  A stronger system will move in late Wednesday and Thursday with another storm on the weekend. 

The Old Forecaster

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Monday, January 8, 2018

Weather Discussion for Monday January 8, 2018

Normal high and low temperatures for Jan 8-Jan 15  (high/low) Redding 55/36, Chico 54/36, Quincy 46/23, Chester 42/21, Susanville 41/21, Grass Valley 53/33, Weaverville 46/27, Mt. Shasta 44/26, Yreka 44/25, Alturas 41/16

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 and frontal system approaching the coast.  Ahead of this system quite a bit of sub tropical moisture is being draw northward.  Rain is expected today through midday Tuesday.  Snow levels will be 5500 to 6500 feet.  Gusty south winds will occur over the higher elevations.  Tuesday afternoon and Wednesday there will be a few clouds over the mountains with partly to mostly sunny skies in the valley.  Thursday we will see a few more clouds as storm system passes by to our north.  There could be a few light sprinkles near the Oregon border. 

Friday through Sunday high pressure will be back along the west coast (see map below).  The north state will see mostly sunny skies with above normal daytime temperatures and light winds.

Still looking for a change to a winter weather pattern staring next week.  The first storm move in Monday followed by stronger and colder storms over the next 7 to 10 days. 

The Old Forecaster

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Saturday, January 6, 2018

Weather Discussion for Saturday January 6, 2018

Normal high and low temperatures for Jan 1-Jan 8  (high/low) Redding 54/35, Chico 53/34, Quincy 44/22, Chester 40/18, Susanville 39/19, Grass Valley 50/30, 6, Weaverville 45/26, Mt. Shasta 43/26, Yreka 42/24, Alturas 40/14

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 trough has now moved east and skies will be clearing over Northern California today.   Sunday will be partly to mostly sunny but clouds will begin to increase late in the day.   Monday a low pressure area will be along the coast (see map below).   This system should bring rain to all of California Monday through midday Tuesday.  This looks like a fairly wet storm but snow levels will be 6000 feet or higher. 

Skies will be clearing Tuesday afternoon.   Wednesday through the weekend high pressure will be back over our area.   We will have mostly clear skies with a few clouds on Thursday as a storm goes by to our north.  Daytime temperatures during this time will be above normal. Winds will be light.

Don't want to get everyone's hope's up.....but the past 3 to 4 runs of all the models have shown a wet..windy...winter type weather pattern setting up over Northern California starting around the 15th. 

The Old Forecaster

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Wednesday, January 3, 2018

Weather Discussion for Wednesday January 3, 2018

Normal high and low temperatures for Jan 1-Jan 8  (high/low) Redding 54/35, Chico 53/34, Quincy 44/22, Chester 40/18, Susanville 39/19, Grass Valley 50/30, Weaverville 45/26, Mt. Shasta 43/26, Yreka 42/24, Alturas 40/14

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 area is moving northeastward toward Northern California (see satellite picture below).  This is the first of several systems that will move across the north state between today and have early Saturday.  None of these are very strong or cold.   This afternoon through early Saturday we will see periods of rain or showers with snow levels 6000 feet or higher.   Gusty south winds will occur over the higher elevations.

Saturday afternoon through midday Monday expect partly cloudy to partly sunny skies with light winds. and normal or slightly above normal temperatures. 

Monday afternoon another low pressure area will be approaching the coast (see map below).  This system will bring more rain to our area Monday through early Wednesday.  Snow levels will continue high.

The Old Forecaster

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Monday, January 1, 2018

Weather Discussion for January 1, 2018

Normal high and low temperatures for Jan 1-Jan 8  (high/low) Redding 54/35, Chico 53/34, Quincy 44/22, Chester 40/18, Susanville 39/19, Grass Valley 50/30, Weaverville 45/26, Mt. Shasta 43/26, Yreka 42/24, Alturas 40/14

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 start the New Year off with a high pressure ridge continuing along the west coast.  However, the high is showing signs of weakening.  The frontal system that hit the high yesterday, was pushed northward but was able to push a few light sprinkles over Northern California.

Today through Tuesday we will continue to have partly cloudy to partly sunny skies with occasional mid and high cloudiness.  Daytime temperatures will be above normal and winds will be light.  Wednesday the jetstream will split as it crosses the Pacific and the weak southern branch will form a low pressure trough along the coast.  The map below shows this pattern and normally we would not see much precipitation with this type of pattern.   However, if you have been watching the satellite pictures you have seen that for the past week the storms hitting the ridge have been forming to our southwest and have been, and are, drawing subtropical moisture northward.  This source of moisture will give the off shore trough more to work with.

Light rain will spread over the area Wednesday afternoon and evening with periods of rain or showers through early Saturday.  Snow levels will be 6000 feet or higher.  Saturday afternoon through early Monday we will have partly cloudy skies and then a stronger storm should hit late Monday and Tuesday. 

The Old Forecaster

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