Baroclinic Clash
Posted by
JAC on 2/17/2011, 10:34 am
PRELIMINARY EXTENDED FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
728 AM EST THU FEB 17 2011
VALID 12Z MON FEB 21 2011 - 12Z THU FEB 24 2011
COLD HIGH PLUNGES SOUTHWARD THRU THE PLAINS SUNDAY SHIFTING EWD
OVER THE GREAT LAKES REGION MONDAY WITH THE STRONG BAROCLINIC
CLASH AIDING SHORTWAVE ENERGY INDUCING A MODERATELY STRONG FRONTAL
WAVE EJECTING NEWD FROM THE PLAINS INTO THE NORTHEAST MONDAY WITH
A SECONDARY FRONTAL WAVE COMING OUT FARTHER SOUTH MID WEEK. NRN
PERIPHERY OF THESE TWO WAVES MAY PRODUCE MORE WINTERY WEATHER AS
THEY EJECT EASTWARD. RETURN WARM ADVECTION FLOW FOLLOWS IN THE SRN
PLAINS/MS/OH VALLEYS AND INTO THE EAST LATE NEXT WEEK. AN
ADDITIONAL COLD SURGE EXPECTED IN THE NRN PLAINS LATE WEEK AS
MODELS AND ENSEMBLE AGREE ON ANOTHER CANADIANN HIGH PUSHING
SOUTHWRD THURSDAY AND FRIDAY.
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