PROGNOSTIC METEOROLOGICAL DISCUSSION

 
 FXUS01 KWBC 241924
 PMDSPD
  
 SHORT RANGE FORECAST DISCUSSION
 NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
 222 PM EST TUE NOV 24 2009
  
 VALID 00Z WED NOV 25 2009 - 12Z THU NOV 26 2009
  
 A COLD AND BLUSTERY THANKSGIVING DAY IS ON TAP FOR MUCH OF THE
 GREAT LAKES REGION. A LARGE PIECE OF UPPER LEVEL ENERGY IS MAKING
 ITS WAY THROUGH THE MIDDLE MISSISSIPPI VALLEY...PUSHING A HEAVY
 AREA OF PRECIPITATION OUT AHEAD OF IT. THIS DEEPENING LOW PRESSURE
 SYSTEM WILL SLOWLY TRACK NORTH NORTHEASTWARD...THROUGH THE GREAT
 LAKES BY THURSDAY EVENING. THE MAIN AREA OF PRECIPITATION WILL
 REMAIN NEAR THE LOW PRESSURE CENTER. TEMPERATURES WILL BE DROPPING
 BY AS MUCH AS 10 DEGREES BEHIND THE COLD FRONT. 
 
 A SECONDARY COLD FRONT...BRINGING ARCTIC AIR FROM NORTHERN CANADA
 TO THE GREAT PLAINS AND MIDWEST... WILL FORM BEHIND THE CURRENT
 FRONTAL SYSTEM WEDNESDAY NIGHT. AS THE FIRST FRONT WEAKENS ANOTHER
 BURST OF UPPER LEVEL ENERGY PUSHES THROUGH IN THE WAKE OF THE
 ORIGINAL SURGE. AS THE SECOND COLD FRONT GAINS MOMENTUM IT WILL
 DISLODGE THE STATIONARY FRONT THAT IS CURRENTLY SITUATED OVER
 FLORIDA...FINALLY MOVING THE BULK OF THE WET WEATHER OUT OF THE
 AREA FOR SHOPPERS GETTING UP EARLY ON FRIDAY TO HIT THOSE BLACK
 FRIDAY SALES. 
 
 PRECIPITATION OVER THE NORTHWEST WILL BE MAINLY CONFINED TO THE
 NORTHERN TIER OF THE UPPER NORTHWEST AND ALONG A STATIONARY
 BOUNDARY SITUATED ALONG THE ROCKIES. RAIN AND SNOW FALLING IN THIS
 REGION WILL BE LIGHT AND SHOWERY IN NATURE. THE DOME OF HIGH
 PRESSURE SITUATED OVER THE SOUTHWEST WILL KEEP THE RAIN AND SNOW
 TO THE NORTH...ENSURING RESIDENTS IN THIS AREA OF THE COUNTRY
 ENJOY A SUNNY AND RELATIVELY WARM THANKSGIVING DAY.
 
 COLLINS
  
 
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