133
FXUS01 KWBC 131910
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
208 PM EST SAT DEC 13 2025
VALID 00Z SUN DEC 14 2025 - 00Z TUE DEC 16 2025
...HEAVY SNOW OVER PARTS OF THE OHIO VALLEY, THE UP AND NORTHERN
LP MICHIGAN, AND THE LAKES ERIE/ONTARIO COASTLINE...
...HEAVY, EXCESSIVE RAINFALL RETURNS OVER PARTS OF THE PACIFIC
NORTHWEST...
...COLD TEMPERATURES OVER THE UPPER/MIDDLE MISSISSIPPI VALLEY AND
THE OHIO VALLEY...
ON SATURDAY INTO SUNDAY, A COLD FRONT MOVES OFF THE EAST AND GULF
COASTS, FOLLOWED BY AN AREA OF COLD HIGH PRESSURE OVER THE PLAINS
AND OHIO VALLEY. THE HIGH PRESSURE WILL BRING TEMPERATURES 20 TO
25 DEGREES BELOW AVERAGE OVER THE UPPER/MIDDLE MISSISSIPPI VALLEY
AND THE OHIO VALLEY. THE LOW TEMPERATURES WILL DROP WELL BELOW
0ĀF, WITH AFTERNOON HIGHS REMAINING IN THE SINGLE DIGITS.
ADDITIONALLY, UPPER-LEVEL ENERGY WILL PRODUCE HEAVY SNOW OVER
PARTS OF THE OHIO VALLEY, THE UP OF MICHIGAN/NORTHERN LP MICHIGAN,
AND THE LAKES ERIE/ONTARIO COASTLINE, STARTING LATE SATURDAY NIGHT
INTO SUNDAY, AS MODERATE TO HEAVY SNOW FALLS OVER THE
MID-ATLANTIC. SEE THE WPC HEAVY SNOW DISCUSSION FOR DETAILS AND
AMOUNTS. FROM SUNDAY INTO MONDAY, LAKE-EFFECT/LAKE-ENHANCED SNOW
WILL DEVELOP DOWNWIND FROM THE GREAT LAKES.
MEANWHILE, AS THE FRONT MOVES OVER THE GULF COAST STATES, RAIN AND
SHOWERS/THUNDERSTORMS WILL DEVELOP OVER THE AREA FROM SATURDAY
INTO SUNDAY AFTERNOON. IN ADDITION, LIGHT RAIN WILL DEVELOP OVER
THE SOUTHERN MID-ATLANTIC/SOUTHEAST. LASTLY, ONSHORE FLOW RETURNS
TO THE PACIFIC NORTHWEST, PRODUCING RAIN OVER THE AREA ON SUNDAY
AND HEAVY RAIN OVERNIGHT SUNDAY INTO MONDAY.
ZIEGENFELDER
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
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