717
FXUS01 KWBC 030754
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
253 AM EST TUE DEC 03 2024
VALID 12Z TUE DEC 03 2024 - 12Z THU DEC 05 2024
...HEAVY SNOW FOR THE UPPER PENINSULA OF MICHIGAN AND THE NORTHERN
LOWER PENINSULA ON TUESDAY AND WEDNESDAY...
...LAKE-EFFECT AND LAKE-ENHANCED SNOW DOWNWIND FROM LAKES ERIE AND
ONTARIO ON TUESDAY AND WEDNESDAY; MODERATE TO HEAVY SNOW OVER
PARTS OF NORTHERN NEW ENGLAND; LIGHT TO MODERATE SNOW OVER PARTS
OF THE CENTRAL APPALACHIANS ON WEDNESDAY...
...TEMPERATURES WILL BE 10 TO 15 DEGREES BELOW AVERAGE OVER PARTS
OF THE OHIO VALLEY, THE MID-ATLANTIC, AND THE SOUTHEAST...
ON TUESDAY, HIGH PRESSURE OVER THE MIDDLE MISSISSIPPI VALLEY WILL
SLOWLY MOVE SOUTHEASTWARD OFF THE SOUTHEAST COAST BY WEDNESDAY
NIGHT. THE HIGH PRESSURE WILL CREATE COLD TEMPERATURES OVER PARTS
OF THE OHIO VALLEY, THE MID-ATLANTIC, AND THE SOUTHEAST, BRINGING
TEMPERATURES OF 10 TO 15 DEGREES BELOW AVERAGE.
MEANWHILE, LOW PRESSURE OVER WEST-CENTRAL CANADA WILL MOVE
SOUTHEASTWARD TO QUEBEC, CANADA, BY THURSDAY. THE STORM WILL
PRODUCE HEAVY SNOW OVER THE UPPER PENINSULA OF MICHIGAN AND THE
NORTHERN LOWER PENINSULA OF MICHIGAN THROUGH THURSDAY. MOREOVER,
LAKE-EFFECT SNOW WILL CONTINUE DOWNWIND FROM LAKES ERIE AND
ONTARIO ON TUESDAY. THEM ON WEDNESDAY, MODERATE TO HEAVY
LAKE-ENHANCED SNOW DEVELOPS DOWNWIND OF LAKES ERIE AND ONTARIO
THROUGH THURSDAY.
FURTHERMORE, LIGHT SNOW WILL DEVELOP OVER PARTS OF THE NORTHERN
PLAINS/UPPER MISSISSIPPI VALLEY TUESDAY THROUGH THURSDAY.
MOREOVER, AS THE FRONT MOVES OVER THE OHIO VALLEY INTO THE
NORTHEAST/MID-ATLANTIC, LIGHT TO MODERATE SNOW WILL DEVELOP OVER
PARTS OF THE OHIO VALLEY AND THE CENTRAL APPALACHIANS ON WEDNESDAY
INTO THURSDAY. ADDITIONALLY, MODERATE TO HEAVY SNOW WILL DEVELOP
OVER PARTS OF NORTHERN NEW ENGLAND ON WEDNESDAY. LIGHT TO MODERATE
SNOW WILL DEVELOP OVER OTHER PARTS OF SOUTHERN NEW ENGLAND AND THE
NORTHEAST. RAIN WILL ALSO DEVELOP OVER THE COASTAL PARTS OF NEW
ENGLAND.
MOREOVER, WEAK RETURN FLOW OFF THE GULF OF MEXICO WILL CREATE
SCATTERED SHOWERS AND THUNDERSTORMS OVER PARTS OF THE WEST/CENTRAL
GULF COAST THROUGH WEDNESDAY AND RAIN OVER PARTS OF THE LOWER
MISSISSIPPI/TENNESSEE VALLEYS AND SOUTHEAST WEDNESDAY INTO
THURSDAY.
ELSEWHERE, UPPER-LEVEL RIDGING WILL CREATE STAGNANT AIR CONDITIONS
OVER PARTS OF THE PACIFIC NORTHWEST, LEADING TO AREAS OF DENSE FOG
AND POOR AIR QUALITY. HOWEVER, AN APPROACHING FRONT OVER THE
EASTERN PACIFIC WILL USHER MOISTURE INTO THE PACIFIC NORTHWEST,
CREATING LIGHT RAIN OVER PARTS OF THE NORTHWEST COAST WEDNESDAY
NIGHT INTO THURSDAY. FURTHERMORE, A HIGH WIND WATCH WILL BE IN
EFFECT OVER PARTS OF THE NORTHERN ROCKIES THROUGH LATE TUESDAY
MORNING.
ZIEGENFELDER
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