696
FXUS01 KWBC 122003
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST SUN JAN 12 2025
VALID 00Z MON JAN 13 2025 - 00Z WED JAN 15 2025
...CRITICAL FIRE WEATHER CONDITIONS CONTINUE ACROSS THE
FIRE-RAVAGED REGION OF SOUTHERN CALIFORNIA...
...CLIPPER SYSTEM TO BRING SNOW SHOWERS TO THE GREAT LAKES ALONG
WITH RENEWED SURGE OF ARCTIC AIR INTO THE UPPER MIDWEST AND OHIO
VALLEY...
...RAIN WILL OVERSPREAD THE CENTRAL GULF STATES THROUGH TONIGHT
THEN ACROSS THE FLORIDA PANHANDLE AND SOUTHERN GEORGIA ON MONDAY...
THE WEATHER PATTERN ACROSS NORTH AMERICA WILL FAVOR A RETURN OF
ARCTIC AIR ACROSS THE NORTHERN AND EASTERN U.S. OVER THE NEXT
COUPLE OF DAYS. THE LATEST WAVE OF ARCTIC AIR WILL CONTINUE TO
OVERSPREAD THE NORTHERN PLAINS AND INTO THE UPPER MIDWEST BEHIND A
LOW PRESSURE SYSTEM THAT IS FORECAST TO TRACK ACROSS THE GREAT
LAKES THROUGH TONIGHT. UP TO A FEW INCHES OF NEW SNOW CAN BE
EXPECTED ACROSS THE UPPER MIDWEST, BUT FOR LOCATIONS NEAR LAKE
SUPERIOR AND DOWNWIND FROM LAKE MICHIGAN, 8 INCHES TO POSSIBLY A
FOOT OF SNOW COULD FALL DUE TO ENHANCEMENT EFFECTS FROM THE
RELATIVELY MILD LAKE WATERS. THE LAKE-EFFECT/ENHANCED SNOW WILL
MAKE A COMEBACK FOR THE SNOW BELT OF THE LOWER GREAT LAKES BY
MONDAY AND INTO TUESDAY BEHIND AN ARCTIC FRONT WITH LOCALLY MORE
THAN A FOOT OF NEW SNOW POSSIBLE. UP TO A COUPLE OF INCHES OF
SNOW CAN ALSO BE EXPECTED ACROSS THE OHIO VALLEY WITH A FEW INCHES
POSSIBLE OVER WEST VIRGINIA FOLLOWING THE PASSAGE OF THE ARCTIC
FRONT. GIVEN THE RENEWED SURGE OF ARCTIC COLD IN ITS WAKE, HIGH
TEMPERATURES WILL STRUGGLE TO REACH INTO THE SINGLE DIGITS AND
TEENS ACROSS THE NORTHERN PLAINS INTO MONDAY, SPREADING INTO THE
OHIO VALLEY BY TUESDAY. A CLIPPER-LIKE LOW PRESSURE SYSTEM WILL
BRING A SWATH OF LIGHT SNOW FROM THE NORTHERN HIGH PLAINS TOWARD
THE MIDWEST MONDAY NIGHT INTO TUESDAY, ALONG WITH A REINFORCING
SURGE OF ARCTIC AIR INTO THE NORTHERN PLAINS.
MEANWHILE, SNOW SHOWERS ARE EXPECTED TO LINGER ACROSS PORTIONS OF
THE NORTHERN ROCKIES INTO THE HIGH PLAINS THROUGH TONIGHT AND INTO
MUCH OF MONDAY AHEAD OF THE STATIONARY PORTION OF THE ARCTIC FRONT
WITH A FOOT OF NEW SNOW POSSIBLE MAINLY NEAR MOUNTAIN PEAKS.
FIRE WEATHER WILL REMAIN A HIGH CONCERN ACROSS FIRE-RAVAGED REGION
OF SOUTHERN CALIFORNIA. A RESURGENCE OF GUSTY WINDS IS FORECAST
TONIGHT INTO MONDAY ACROSS SOUTHERN CALIFORNIA AS MID-LEVEL
IMPULSES SINK SOUTH ACROSS THE WESTERN U.S., ALLOWING FOR A
RE-TIGHTENING OF THE SURFACE PRESSURE GRADIENT AND GUSTY
DOWNSLOPE/OFFSHORE WINDS FROM THE DESERT SOUTHWEST INTO SOUTHERN
CALIFORNIA INTO TUESDAY.
ALONG THE GULF COAST, AN AREA OF LOW PRESSURE FORMING ALONG A
TIGHTENING FRONTAL BOUNDARY OVER THE OPEN GULF WATERS WILL TRACK
EASTWARD EDGING TOWARD THE CENTRAL GULF COAST REGION. RAIN IS
EXPECTED TO EXPAND AND STEADILY MOVE EAST ACROSS THE CENTRAL GULF
STATES THROUGH TONIGHT. BY MONDAY MORNING, RAIN WILL SPREAD
ACROSS THE FLORIDA PANHANDLE INTO PORTIONS OF SOUTHERN
ALABAMA/GEORGIA BUT RAINFALL INTENSITY WILL DIMINISH THROUGHOUT
THE DAY ON MONDAY. WHILE SOME LIGHT RAIN MAY CONTINUE OVER
FLORIDA NEAR A FRONTAL BOUNDARY TUESDAY MORNING, MUCH OF THE U.S.
WILL SEE RELATIVELY QUIET WEATHER.
KONG
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