862
FXUS01 KWBC 041958
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
212 PM EST WED NOV 04 2009
VALID 00Z THU NOV 05 2009 - 12Z FRI NOV 06 2009
A WEAK FRONT OVER THE OHIO VALLEY TO THE LOWER MISSISSIPPI VALLEY
WILL MOVE OFF THE EAST COAST AND INTENSIFY AS ANOTHER WEAK FRONT
ALONG THE NORTHERN TIER STATES MOVES EASTWARD TO THE LOWER GREAT
LAKES WHILE DISSIPATING. THE UPPER LEVEL ENERGY FROM THE NORTHERN
TIER FRONT WILL AID IN THE DEVELOPMENT OF A DEEP LOW OFF THE
NORTHEAST COAST BY FRIDAY MORNING. THE FIRST BOUNDARY WILL BE DRY
UNTIL THE FRONT REACHES THE EASTERN SEABOARD WHERE ... WITH THE
INFLUX OF ATLANTIC MOISTURE ... WILL HELP PRODUCE SCATTERED LIGHT
RAIN SHOWERS THAT WILL INTENSIFY INTO LIGHT RAIN OVER THE
NORTHEAST COAST AS THE SYSTEM STRENGTHENS. THE SECOND SYSTEM WILL
PRODUCE SCATTERED LIGHT RAIN AND SNOW SHOWERS FROM THE UPPER GREAT
LAKES TO THE INTERIOR NORTHEAST.
HIGH PRESSURE OVER THE CENTRAL PLAINS WILL MOVE EASTWARD TO THE
EASTERN OHIO VALLEY BY FRIDAY. THE HIGH WILL BRING SLIGHTLY BELOW
AVERAGE TEMPERATURES WITH IT TO THE EASTERN THIRD OF THE COUNTRY.
ON THE BACK SIDE OF THE HIGH ... WARMER THAN AVERAGE TEMPERATURES
WILL DEVELOP OVER THE NORTHERN/CENTRAL PLAINS.
A PACIFIC STORM WILL MOVE ONSHORE OVER THE NORTHWEST WITH THE
FRONT MOVING TO THE NORTHERN ROCKIES BY FRIDAY. THE SYSTEM WILL
BRING LIGHT RAIN AND HIGHEST ELEVATION SNOW TO THE NORTHWEST
INLAND TO THE THE NORTHERN INTERMOUNTAIN REGION/ROCKIES BEGINNING
LATE WEDNESDAY NIGHT. ADDITIONALLY ... AN OLD BOUNDARY NEAR
SOUTHERN FLORIDA WILL KEEP SCATTERED SHOWERS AND THUNDERSTORMS
OVER THE SOUTHERN TIP OF THE STATE THROUGH FRIDAY.
ZIEGENFELDER
GRAPHIC AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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