420
FXUS01 KWBC 082037
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
436 PM EDT MON SEP 08 2008
VALID 00Z TUE SEP 09 2008 - 12Z WED SEP 10 2008
HURRICANE IKE WHICH IS CURRENTLY LOCATED OVER CUBA IS FORECAST TO
MOVE NORTHWESTWARD THE NEXT 48 HOURS...ON COURSE TO MOVE INTO
CONUS...AND RETAINING ITS HURRICANE STRENGTH. FOR MORE INFORMATION
ON THE TRACK AND INTENSITY OF IKE PLEASE REFER TO THE NATIONAL
HURRICANE CENTER.
THE LONGWAVE PATTERN FEATURES BROAD TROUGHING OVER CENTRAL CANADA
THAT WILL BRING IMPULSES OF SHORTWAVE ENERGY INTO THE U.S..
STARTING WITH THE MIDWEST... A SLUG OF ENERGY WILL CARVE ITS WAY
INTO THE REGION...PERTURBING THE ATMOSPHERE...RESULTING IN A BATCH
OF UNSETTLED WEATHER. A COLD FRONT THAT SPANS FROM QUEBEC TO THE
SOUTHERN ROCKIES WILL GET STEERED EASTWARD...AND IN ITS
WAKE...COLD AIR WILL ADVECT INTO THE CENTRAL U.S.. AS THIS SYSTEM
PROPAGATES EASTWARD...THE PRECIPITATION WILL MOVE INTO THE
NORTHEAST AND MID-ATLANTIC. FARTHER SOUTH ALONG THE COLD
FRONT...WIDESPREAD CONVECTION IS EXPECTED ACROSS PORTIONS OF
TEXAS. AS GULF MOISTURE MEETS UP WITH THE SURFACE
BOUNDARY...ANTICIPATE INCREASED THUNDERSTORM ACTIVITY ACROSS THE
GULF REGION. HEADING WEST...AS THE MID TO UPPER LEVEL TROUGH
DEEPENS OVER THE WESTERN U.S....THE ATMOSPHERE WILL BECOME
PROGRESSIVELY LESS STABLE. VIGOROUS SHORTWAVE ENERGY WILL MOVE
INTO THE PACIFIC NORTHWEST...IGNITING THE NEXT WAVE OF
CYCLOGENESIS. ELSEWHERE...ACROSS THE DESERT SOUTHWEST AND PORTIONS
OF THE SIERRAS...WITH MONSOONAL MOISTURE IN PLACE...DIURNALLY
DRIVEN THUNDERSTORMS WILL FIRE UP OVER THE TERRAIN.
SZATANEK
GRAPHICS AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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