044
FXUS01 KWBC 302003
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
403 PM EDT FRI OCT 30 2009
VALID 00Z SAT OCT 31 2009 - 12Z SUN NOV 01 2009
A STRONG FRONT EXTENDING FROM THE GREAT LAKES SOUTHWARD TO THE
CENTRAL GULF COAST WILL MOVE EASTWARD TO THE EAST COAST BY
SATURDAY EVENING. GULF OF MEXICO MOISTURE WILL POOL ALONG AND
AHEAD OF THE FRONT PRODUCING SHOWERS AND THUNDERSTORMS OVER THE
EASTERN GULF COAST AND RAIN FROM THE TENNESSEE VALLEY NORTHWARD TO
THE GREAT LAKES. THE RAIN WILL MOVE TO THE EAST COAST BY SATURDAY
EVENING WHILE A WAVE OF LOW PRESSURE WILL AID IN KEEPING
ADDITIONAL RAIN OVER THE SOUTHEAST ... MOVING TO THE MID-ATLANTIC
BY SUNDAY MORNING. THE FRONT WILL LINGER OVER FLORIDA PRODUCING
SHOWERS AND THUNDERSTORMS OVER THE REGION THROUGH SUNDAY TOO.
COLD AIR DAMMING WILL ALLOW COOLER TEMPERATURES TO HOLD ON OVER
PARTS OF THE MID-ATLANTIC AND THE CAROLINAS THROUGH SATURDAY
MORNING. ADDITIONALLY ... WRAPAROUND MOISTURE WILL AID IN
PRODUCING SCATTERED RAIN AND ALONG THE NORTHWESTERN EDGE SNOW ...
OVER PARTS OF THE UPPER MIDWEST THROUGH SATURDAY AFTERNOON.
A PACIFIC STORM WILL MOVE OVER THE NORTHWEST ADVANCING TO THE
NORTHERN PLAINS/UPPER MISSISSIPPI VALLEY BY SUNDAY. THE SYSTEM
WILL PRODUCE RAIN OVER PARTS OF THE NORTHWEST COAST AND THE
NORTHERN INTERMOUNTAIN REGION THROUGH SATURDAY AFTERNOON. WHEN
THE STORM GETS TO THE ROCKIES THE SYSTEM WILL HAVE LITTLE MOISTURE
TO WORK WITH BUT WILL STILL PRODUCE SCATTERED RAIN OVER PARTS OF
THE UPPER MIDWEST THROUGH SUNDAY. IN ADDITION BEHIND THE STORM
... WEAK ONSHORE FLOW WILL DEVELOP SCATTERED LIGHT RAIN SHOWERS
AND HIGHER ELEVATION SNOW OVER PARTS OF THE NORTHWEST TO THE
NORTHERN ROCKIES.
ZIEGENFELDER
GRAPHIC AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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