056
FXUS01 KWBC 232003
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
403 PM EDT FRI OCT 23 2009
VALID 00Z SAT OCT 24 2009 - 12Z SUN OCT 25 2009
A STRONG STORM OVER THE GREAT LAKES WILL MOVE NORTHEASTERLY INTO
SOUTHEASTERN CANADA BY SATURDAY AS THE ASSOCIATED FRONT MOVES
EASTWARD OFF THE EASTERN SEABOARD BY SUNDAY MORNING. THE STORM
WILL PRODUCE LIGHT TO MODERATE RAIN ACROSS THE GREAT LAKES AND
INTO THE NORTHEAST THROUGH LATE SATURDAY. SHOWERS AND AN ISOLATED
THUNDERSTORM WILL DEVELOP ALONG AND AHEAD OF THE COLD FRONT FROM
THE OHIO VALLEY TO THE SOUTHEAST MOVING OFF THE COAST BY SATURDAY
EVENING. ON THE NORTHWEST SIDE OF THE STORM ... A SWATH OF WET
SNOW WILL DEVELOP OVER PARTS OF THE UPPER MIDWEST THROUGH SATURDAY
AFTERNOON.
ANOTHER STORM OVER THE PACIFIC NORTHWEST WILL MOVE SOUTHEASTWARD
TO THE UPPER MISSISSIPPI VALLEY BY SUNDAY. THE SYSTEM WILL
PRODUCE RAIN OVER PARTS OF THE NORTHWEST SPREADING EASTWARD TO THE
UPPER MIDWEST. THE SNOW LEVELS WILL DROP AFTER THE FRONT PASSES
... SO LIGHT SNOW WILL DEVELOP OVER PARTS OF THE NORTHERN
INTERMOUNTAIN REGION AND THE NORTHERN/CENTRAL ROCKIES ON SATURDAY.
AT THE END OF THE PERIOD ... A NEW PACIFIC STORM WILL BEGIN TO
COME ONSHORE OVER THE NORTHWEST.
ZIEGENFELDER
GRAPHIC AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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