Friday, May 6, 2016

Weather Discussion for Friday May 6, 2016

Normal high and low temperatures for May 2-May 9 (high/low)...Redding 78/53, Chico 79/49, Quincy 71/36, Chester 65/33, Susanville 68/38, Grass Valley 69/44, Weaverville 74/38, Mt. Shasta 66/38, Yreka 70/38, Alturas 66/33 

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

Yesterday afternoon I sat outside and watched an impressive thunderstorm with heavy rain and hail.  We received over an inch of rain.  However because of the movement of the cell it never got to east Redding and the Redding airport stayed dry. 

The low pressure area is now moving into Central California.   It eastward movement will be be very slow and the counter clockwise flow around the low will keep the showers and thunderstorms moving across Northern California.  Today through midday Saturday all of the north state will see scattered showers and thunderstorms.  Saturday afternoon and Sunday there will still be a chance of showers over the areas east of the valley, with partly sunny to partly cloudy skies elsewhere.   Monday through the end of next week high pressure will be back along the coast. (see map below).  Northern California will be mostly sunny with temperatures 5 to 10 degrees above normal.  Winds will be light. 

Note on the map below there is a closed low well to our west.   This low could be close enough to the coast to give us more showers by next weekend. 

The Old Forecaster

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Wednesday, May 4, 2016

Weather Discussion for Wednesday May 4, 2015

Normal high and low temperatures for May 2-May 9 (high/low)...Redding 78/53, Chico 79/49, Quincy 71/36, Chester 65/33, Susanville 68/38, Grass Valley 69/44, Weaverville 74/38, Mt. Shasta 66/38, Yreka 70/38, Alturas 66/33 

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

Wet weather will continue...   A closed or "cutoff" low pressure area is forming off the coast...see satellite picture below.   The counter-clockwise flow around this low has pushed clouds and showers northward over Northern California.   This low will move very slowly eastward and by Saturday will be over Nevada (see map below).  Today and Thursday we will see showers and thunderstorms with locally heavy rain in some areas.  Friday and Saturday the showers and possible thunderstorms will continue over the foothills and mountains with a few showers moving across the valley.  Over the next 3 days the higher elevations of the north state will receive 1 to 3 inches of rain, with heavier amounts in some areas. 

Sunday we will see partly cloudy to partly sunny skies with isolated showers possible along and east of the Sierra Cascade Crest.  Monday through Wednesday high pressure will be back along the coast, bringing sunny skies and warm temperatures to the north state.

The forecast models indicate another low could be off the coast late next week. 

The Old Forecaster

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Monday, May 2, 2016

Weather Discussion for Monday May 2, 2016

Normal high and low temperatures for May 2-May 9 (high/low)...Redding 78/53, Chico 79/49, Quincy 71/36, Chester 65/33, Susanville 68/38, Grass Valley 69/44, Weaverville 74/38, Mt. Shasta 66/38, Yreka 70/38, Alturas 66/33 

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

Looks like we are going to have a wet start to May.

This morning's satellite picture (below) shows a low pressure trough and frontal system approaching the coast.  This system is splitting apart and the southern portion will be off the coast Tuesday and then move slowly across the state Wednesday and Thursday (see map below).   This afternoon and early evening there will be isolated showers and thunderstorms over the mountains.   Tuesday we will see a few more clouds and mountains showers and thunderstorms.  Wednesday and Thursday the north state will be partly cloudy to cloudy with showers and thunderstorms. Some of the thunderstorms will have heavy precipitation.  Friday the low will be to our east but the showers will continue over the higher elevations with a chance of a shower in the valley.    Saturday through Monday high pressure will be back over the area for sunny skies and above normal temperatures.

The Old Forecaster

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Saturday, April 30, 2016

Weather Discussion for Saturday April 30, 2016

Normal high and low temperatures for Apr 25-May 2 (high/low)...Redding 76/50, Chico 76/47, Quincy 67/34, Chester 63/31, Susanville 64/35, Grass Valley 67/41, Weaverville 70/36, Mt. Shasta 64/36, Yreka 67/36, Alturas 63/31 

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

Short update this morning.   This morning's satellite picture (below) shows high pressure is off the coast with a low pressure area over Nevada and the Great Basin.  The clouds and showers yesterday afternoon were from a system dropping southward into the Nevada low.  Today and Sunday most of the north state will be sunny but there will be some clouds and isolated showers along and east of the Sierra Cascade Crest.  Strong gusty north winds will occur today but will decrease by midday Sunday. 

Monday the north state will be partly to mostly sunny with above normal temperatures.  There will be afternoon clouds over the mountains with a chance of showers or thunderstorms.  

Tuesday afternoon through Friday things get interesting.   Tuesday afternoon a low pressure area will begin form off the coast.   This low will remain there at least through Thursday, with one model holding it there trough Friday. (see map below).   We could see a few showers Tuesday afternoon and evening.   Wednesday through Friday look partly cloudy with scattered showers and thunderstorms.    

The Old Forecaster

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Wednesday, April 27, 2016

Weather Discussion for Wednesday April 28, 2016

Normal high and low temperatures for Apr 25-May 2 (high/low)...Redding 76/50, Chico 76/47, Quincy 67/34, Chester 63/31, Susanville 64/35, Grass Valley 67/41, Weaverville 70/36, Mt. Shasta 64/36, Yreka 67/36, Alturas 63/31 

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 and frontal system are now moving across Northern California with showers and possible thunderstorms.  Most of the precipitation will be out of the area by this evening with some showers lingering over the Sierra Cascade area through early Thursday.   Gusty southwest to northwest winds will occur today with gusty north winds Thursday.  

Friday the north state will be sunny with gusty north winds in some areas.  Saturday through Monday we will be under a weather pattern like the one shown below.   The high pressure ridge will strengthen off the coast and the low pressure area over Nevada and the Great Basin will deepen.  Northern California will remain mostly sunny but the north winds will increase.  Saturday through early Monday strong and gusty north to northeast winds will occur over much of the north state.   Temperatures on the weekend will be a few degrees above normal.  

The winds will subside by Monday afternoon and Monday and Tuesday we will see sunny skies with above normal temperatures.    The extended models show a closed low pressure area forming off the coast about next Wednesday.  Depending on how close this low gets to the coast it could bring another round of wet weather late next week.
The Old Forecaster

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Monday, April 25, 2016

Weather Discussion for Monday April 25, 2016

Normal high and low temperatures for Apr 25-May 2 (high/low)...Redding 76/50, Chico 76/47, Quincy 67/34, Chester 63/31, Susanville 64/35, Grass Valley 67/41, Weaverville 70/36, Mt. Shasta 64/36, Yreka 67/36, Alturas 63/31 

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 area moved through last night with isolated showers and gusty winds.   The best way to describe the next week is windy.   The low pressure area is now to our east with high pressure just off the coast.  Today and most of Tuesday will be sunny with slighty below normal temperatures.  Gusty north winds will occur today and early Tuesday.

Late Tuesday and Wednesday a weak upper level low pressure area will move across Northern California.  (see map 1 below).  This system will bring light showers to the area with gusty southwest to west winds.

Thursday through the weekend we will be under weather pattern like the one shown in map 2.   High pressure will be just off the coast with low pressure to our east over Nevada.  The north state will be mostly sunny with temperatures rising above normal.   Periods of strong gusty north winds will occur Thursday through early next week.

The Old Forecaster

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Saturday, April 23, 2016

Weather Discussion for Saturday April 23, 2016

Normal high and low temperatures for Apr 18-Apr 25 (high/low)...Redding 74/48, Chico 74/46, Quincy 66/33, Chester 59/30, Susanville 63/34, Grass Valley 64/41, Weaverville 69/35, Mt. Shasta 61/35, Yreka 66/36, Alturas 63/31 

This blog will be issued every Monday morning and updated if the weather is changing or critical or interesting weather events are occurring.
Short blog this morning to comment on yesterday's weather.   Probably one of the longest thunderstorm events I have seen in Redding.  We had thunder and lightning for 3 to 4 hours.   A lot of the lightning was cloud to cloud and shot across the sky.  This is why thunder seemed to roll and last so long.  The law of averages showed up also... A while back we had heavy showers in the area and they stayed north of the Redding airport and the airport rain gauge reported almost nothing.   Yesterday, the showers were over the airport and it reported over 2 inches of rain. (one of the wettest spots in the north state).  Redding now has 37 inches of rain which exceeds it normal annual rainfall and there are 5 months to go in the "rain year".

Today the low has moved east and Northern California will be partly cloudy to partly sunny.   This morning's satellite picture (below) shows a weak frontal system approaching the coast.  This system will bring showers to the higher elevations Sunday afternoon and early Monday.  Snow levels will be near 5000 feet.  Tuesday there will be brief break and then Wednesday and Thursday a low pressure area will drop over the west coast (see map below).  This will bring more showers and possible thunderstorms to the north state.  Friday through the weekend looks sunny and warmer.   There will be gusty north winds Monday and Tuesday.


The Old Forecaster

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