892
FXUS01 KWBC 051142
PMDSPD
SHORT RANGE FORECAST DISCUSSION...CORRECTION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
641 AM EST THU DEC 05 2024
VALID 12Z THU DEC 05 2024 - 12Z SAT DEC 07 2024
...HEAVY LAKE-ENHANCED/LAKE-EFFECT SNOW DOWNWIND FROM LAKES ERIE
AND ONTARIO ON THURSDAY AND FRIDAY; MODERATE TO HEAVY SNOW OVER
PARTS OF NEW ENGLAND ON THURSDAY; LIGHT TO MODERATE SNOW OVER
PARTS OF THE CENTRAL APPALACHIANS ON THURSDAY AND FRIDAY...
...LIGHT TO MODERATE LAKE-EFFECT SNOW FOR THE UPPER PENINSULA OF
MICHIGAN AND THE WEST COAST OF THE LOWER PENINSULA ON THURSDAY AND
FRIDAY...
...TEMPERATURES WILL BE 10 TO 20 DEGREES BELOW AVERAGE OVER PARTS
OF THE OHIO VALLEY AND THE MID-ATLANTIC...
A STORM OVER SOUTHEASTERN CANADA WILL MOVE EASTWARD TO FAR EASTERN
CANADA BY FRIDAY MORNING. THE SYSTEM WILL PRODUCE HEAVY
LAKE-ENHANCED THEN HEAVY LAKE-EFFECT SNOW DOWNWIND FROM LAKES ERIE
AND ONTARIO ON THURSDAY AND FRIDAY. ADDITIONALLY, IN THE WAKE OF
THE STORM, LIGHT TO MODERATE LAKE-EFFECT SNOW WILL DEVELOP OVER
PARTS OF THE UPPER PENINSULA OF MICHIGAN AND THE WEST COAST OF THE
LOWER PENINSULA OF MICHIGAN ON THURSDAY AND FRIDAY. FURTHER,
MODERATE TO HEAVY SNOW WILL BE CREATED ON THURSDAY OVER PARTS OF
NEW ENGLAND. BY FRIDAY, SCATTERED LIGHT SNOW WILL BE OVER NEW
ENGLAND AND THEN THE SNOW WILL END BY FRIDAY EVENING.
FURTHERMORE, LIGHT TO MODERATE SNOW WILL DEVELOP OVER PARTS OF THE
CENTRAL APPALACHIANS ON THURSDAY AND FRIDAY.
MOREOVER, THE STRONG ARCTIC COLD FRONT WILL SWEEP ACROSS THE
MID-ATLANTIC AND THE NORTHEAST ON THURSDAY. THE BOUNDARY WILL
CREATE SNOW SQUALLS ACCOMPANIED BY INTENSE BURSTS OF HEAVY
SNOWFALL AND GUSTY WINDS, PRODUCING DANGEROUS TRAVEL CONDITIONS
DUE TO WHITEOUTS AND ICY ROADS. IN ADDITION, WIND GUSTS UP TO 80
MPH WILL SPREAD INTO THE CENTRAL APPALACHIANS, MID-ATLANTIC, AND
NORTHEAST ON THURSDAY. THESE WINDS WOULD CAUSE POWER OUTAGES, DOWN
TREE BRANCHES, AND RESULT IN HAZARDOUS COMMUTES.
MOREOVER, AFTER THE STORM, HIGH PRESSURE OVER THE NORTHERN PLAINS
WILL MOVE SOUTHEASTWARD TO THE TENNESSEE VALLEY BY SATURDAY. THE
HIGH PRESSURE WILL USHER IN COLD TEMPERATURES OVER PARTS OF THE
OHIO VALLEY AND THE MID-ATLANTIC, BRINGING TEMPERATURES OF 10 TO
20 DEGREES BELOW AVERAGE.
MEANWHILE, RETURN FLOW OFF THE GULF OF MEXICO WILL CREATE
SCATTERED SHOWERS AND THUNDERSTORMS OVER PARTS OF THE CENTRAL GULF
COAST ON THURSDAY. ON FRIDAY, SCATTERED SHOWERS AND THUNDERSTORMS
WILL DEVELOP OVER PARTS OF THE SOUTHERN HIGH PLAINS.
ELSEWHERE, LINGERING STAGNANT AIR CONDITIONS WILL BE 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 LATE FRIDAY NIGHT INTO
SATURDAY.
ZIEGENFELDER
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