714
FXUS01 KWBC 312000
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
259 PM EST WED DEC 31 2025
VALID 00Z THU JAN 01 2026 - 00Z SAT JAN 03 2026
...HEAVY LAKE-EFFECT SNOW WILL BE REINFORCED BY AN ALBERTA CLIPPER
HEADING INTO THE NEW YEAR ALONG WITH THE LIKELIHOOD OF SNOW
SQUALLS FROM THE OHIO VALLEY TO PENNSYLVANIA AND WESTERN NEW
YORK...
...RAIN ASSOCIATED WITH AN ANOMALOUS LOW PRESSURE SYSTEM FROM THE
TROPICAL LATITUDES IS FORECAST TO BRING THE THREAT OF FLASH
FLOODING FOR SOUTHERN CALIFORNIA TONIGHT INTO NEW YEAR'S DAY...
...ARCTIC AIR WILL BE REINFORCED ACROSS THE UPPER MIDWEST, GREAT
LAKES AND THE NORTHEAST WHILE A QUICK WARM-UP EMERGES ACROSS THE
GREAT PLAINS...
ARCTIC AIR BEHIND A DEPARTING INTENSE CYCLONE WILL CONTINUE TO
SURGE INTO MUCH OF THE EASTERN TWO-THIRDS OF THE COUNTRY. IN THE
PROCESS, THE LAKE-EFFECT "SNOW MACHINE" WILL REMAIN ACTIVE
DOWNWIND FROM THE GREAT LAKES, AND WAS REINFORCED WITH THE ARRIVAL
OF AN ALBERTA CLIPPER EARLIER TODAY. THE HIGHEST SNOWFALL TOTALS
ARE FORECAST TO BE DOWNWIND OF LAKES ERIE AND ONTARIO WHERE AN
ADDITIONAL 1-2 FEET WITH LOCALLY 3+ FEET POSSIBLE WITHIN THE
HEAVIEST SNOW BANDS OVER THE NEXT COUPLE OF DAYS. A REINFORCING
SURGE OF ARCTIC AIR WILL FOLLOW BEHIND THE CLIPPER SYSTEM AS AN
ARCTIC HIGH PRESSURE SYSTEM FROM CANADA WILL DESCEND INTO THE
NORTHERN U.S. TODAY. THE FORCEFUL PUSH OF THE ARCTIC COLD FRONT
IS EXPECTED TO PRODUCE SNOW SHOWERS AND EVEN SNOW SQUALLS INTO THE
EARLY HOURS OF NEW YEAR'S DAY ACROSS THE OHIO VALLEY TO
PENNSYLVANIA AND WESTERN NEW YORK. ADJACENT AREAS ACROSS THE
UPPER MIDWEST TO THE FAR NORTHERN PLAINS AS WELL AS INTERIOR NEW
ENGLAND CAN ALSO EXPECT SNOW SHOWERS FROM THE CLIPPER. THE SNOW
WILL BE LAST TO TAPER OFF ACROSS WEST VIRGINIA ON NEW YEAR'S DAY
AS THE CLIPPER MOVES QUICKLY ACROSS NEW ENGLAND WHILE
INTENSIFYING. THIS INTENSIFICATION WILL BRING WIDESPREAD
ACCUMULATING SNOWFALL ACROSS MUCH OF NEW ENGLAND ON NEW YEAR'S DAY
FOLLOWED BY MODERATE SNOWFALL MOST LIKELY ACROSS DOWNEAST MAINE
WHERE 8+ INCHES OF SNOW COULD FALL BETWEEN NEW YEAR'S DAY AND
FRIDAY MORNING. WINDS WILL BECOME INCREASINGLY BLUSTERY ACROSS
NEW ENGLAND HEADING INTO FRIDAY WITH LOWERING WIND CHILLS.
MEANWHILE, FREEZING TEMPERATURES OVER NORTHERN FLORIDA WILL BEGIN
TO MODERATE ON THURSDAY.
TRANQUIL WEATHER AND MILDER THAN NORMAL TEMPERATURES WILL PREVAIL
ACROSS MUCH OF THE INTERMOUNTAIN WEST UNDER THE INFLUENCE OF A
STABLE HIGH PRESSURE RIDGE AT ALL LEVELS OF THE ATMOSPHERE.
MEANWHILE, RAIN AHEAD OF A LOW PRESSURE SYSTEM THAT HAS DEVELOPED
IN THE UNUSUALLY SOUTHERN LATITUDES OF THE EASTERN PACIFIC IS
LURKING JUST OFF SOUTHERN CALIFORNIA. THIS SYSTEM IS FORECAST TO
EXPAND NORTH THROUGH MUCH OF CALIFORNIA, THE DESERT SOUTHWEST,
REACHING INTO GREAT BASIN, THE FOUR CORNERS, AS WELL AS THE
CENTRAL/SOUTHERN ROCKIES IN THE FORM OF HIGH-ELEVATION SNOWS AS WE
HEAD INTO NEW YEAR'S DAY. IT APPEARS THAT HEAVY RAIN COULD BEGIN
IMPACTING COASTAL SOUTHERN CALIFORNIA INCLUDING LOS ANGELES EARLY
ON NEW YEAR'S DAY ALONG WITH A LOOMING THREAT OF FLASH FLOODING AS
THE TRIPLE-POINT FRONTAL SYSTEM APPROACHES. THE CORE OF THE LOW
PRESSURE SYSTEM IS FORECAST TO PUSH ONSHORE ON NEW YEAR'S DAY AND
GRADUALLY WEAKENS, LEADING TO A GRADUAL REDUCTION OF RAIN CHANCE
ACROSS CALIFORNIA LATER THAT DAY. MEANWHILE, THE EXPANSIVE
MOISTURE SHIELD OF THE SYSTEM WILL KEEP HIGH-ELEVATION SNOW AND
LOW-ELEVATION RAIN IN PLACE FROM THE INTERMOUNTAIN REGION TO THE
NORTHERN/CENTRAL ROCKIES INTO FRIDAY MORNING. ANOTHER SYSTEM
BRINGS ADDITIONAL RAIN AND SNOW TO THE WEST COAST BEGINNING FRIDAY
EVENING.
KEBEDE/KONG
GRAPHICS AVAILABLE AT
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page