Brought to you by Howard Sheckter
Cold inside slider pattern brings chill to the sierra
Wednesday November 10, 2010
SNOW BEGAN LAST NIGHT MID EVENING AND CONTINUED ON AND OFF IN SHOWERS. THE CURRENT PATTERN, IS SET UP WITH THE EASTERN PACIFIC RIDGE PARKED OUT AT 140W, AND THE DOWN STREAM TROF OVER THE ROCKIES. SHORT WAVE ENERGY IS MOVING ONSHORE NEAR WASHINGTON…..THEN DROPPING SOUTHEAST THEN SOUTH ALONG THE EASTERN SLOPES OF THE SIERRA AND WESTERN NEVADA. THIS IS EVIDENCED BY THE UPPER JET NORTH/SOUTH OVER CALIFORNIA, ATM. EVEN THOUGH WE RECEIVED A FEW INCHES OF SNOW OVER NIGHT AND MAY GET ANOTHER INCH TODAY, THIS IS A DRY PATTERN ASSOCIATED WITH BELOW NORMAL TEMPS.
THE DWEEBS SEE LITTLE CHANGE IN THIS PATTERN FOR AT LEAST A WEEK. THERE HAS BEEN SOME SUGGESTION IN RETROGRESSION IN THE LONG WAVE RIDGE BACK TOWARD 160W BEYOND WEEK ONE. HOWEVER, THAT IS STRICTLY SPECULATION AT THIS POINT, AS THERE IS NOT ENOUGH SUPPORT IN THE ENSEMBLES OF EITHER GLOBAL MODEL.
INTER-SEASONAL:
WHAT IS REALLY NICE TO SEE SO FAR IS THAT THE WESTERN HEMISPHERIC PATTERN FROM THE WEST TO EAST HAS BEEN TO THIS POINT, REALLY PROGRESSIVE, WITH OUT ANY LONG TERM BLOCKING. THIS IS ESPECIALLY TRUE IN THE HUDSON BAY AREA WHERE HEIGHTS HAVE BEEN ACTUALLY HIGHER THEN NORMAL IN THE MEAN. IF YOU LOOK AT THE SSTAS OVER HUDSON BAY, THEY ARE ABOVE NORMAL. THUS NO COLD THERMAL ANCHOR FEEDING BACK INTO THE OVERLYING ATMOSPHERE………SO FAR.
AS WEATHER EXPERT AND RETRIED WSFO LEED TOM CYLKEY ALWAYS SAID, THE TWO BIGGEST INFLUENCES ON MAMMOTH WEATHER IS THE HUDSON BAY LOW FOR WINTER WEATHER….AND THE CONTINENTAL HIGH FOR SUMMERTIME WEATHER. IF THE HUDSON BAY LOW IS WEAK AND PROGRESSIVE, THERE WILL USUALLY BE ENOUGH ADJUSTMENT WAVE IN THE PATTERN TO ALLOW STORMS TO PENETRATE…WELL INTO CA.
HAVE A NICE WEEKEND…IT WILL BE FAIR WITH HIGHS IN THE MID 40S.
LOWS IN THE TEENS AND 20S.
DR HOWARD AND THE DWEEBS…………………………………..:-)