841
FXUS01 KWBC 130801
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 AM EST TUE JAN 13 2026
VALID 12Z TUE JAN 13 2026 - 12Z THU JAN 15 2026
...WELL ABOVE AVERAGE TEMPERATURES LINGER ACROSS MUCH OF THE LOWER
48 TODAY; NEXT ROUND OF COLD AIR ARRIVES TOMORROW...
...WINTRY WEATHER POSSIBLE FOR PARTS OF THE MIDWEST, GREAT LAKES
AND APPALACHIANS BY MID-WEEK...
UNSEASONABLY MILD WEATHER WILL PERSIST ACROSS MUCH OF THE LOWER 48
TODAY WITH A STAUNCH RIDGE CENTERED OVER THE WEST. IN FACT, HIGHS
OVER PARTS OF THE NATION'S HEARTLAND COULD CLIMB INTO THE 50'S AND
EVEN UPPER 60'S THIS AFTERNOON, WHICH ROUGHLY 25-30 DEGREES ABOVE
AVERAGE FOR THIS TIME OF YEAR. HOWEVER, THE PASSAGE OF A MODEST
COLD FRONT THIS EVENING WILL KICK OFF A COOLING TREND EAST OF THE
MISSISSIPPI RIVER AS AN UPPER-TROUGH AND ASSOCIATED LOW PRESSURE
WAVE AMPLIFY OVER THE UPPER GREAT LAKES. MUCH COLDER AIR ARRIVES
TOMORROW AS A SECONDARY COLD FRONT WRAPS AROUND THE DEEPENING
CYCLONE IN QUEBEC, WHERE HIGHS COULD DIP INTO THE 20'S AND 30'S ON
THURSDAY OVER PARTS OF THE OHIO VALLEY AND APPALACHIANS.
THE COLD AIR PROVIDED BY TOMORROW'S FRONT WILL ALSO SPREAD WINTRY
WEATHER FROM THE MIDWEST INTO THE APPALACHIANS AND NORTHEAST.
HEAVY LAKE EFFECT SNOW IS EXPECTED TO BEGIN TOMORROW MORNING
DOWNWIND OF LAKE MICHIGAN OVER PARTS OF NORTHERN INDIANA AND
SOUTHWEST MICHIGAN. OTHERWISE, IMPACTS FROM THIS EVENT ON THURSDAY
APPEAR MINOR, ALTHOUGH SOME UNCERTAINTY REMAINS WITH THE FORECAST.
ASHERMAN
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