681
FXUS01 KWBC 092001
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
300 PM EST THU JAN 09 2025
VALID 00Z FRI JAN 10 2025 - 00Z SUN JAN 12 2025
...A SIGNIFICANT WINTER STORM WILL CONTINUE TO BRING HEAVY SNOW
AND DISRUPTIVE ICE ACROSS MUCH OF THE SOUTH THROUGH SATURDAY...
...CRITICAL FIRE WEATHER CONDITIONS RAMP UP AGAIN ACROSS THE
SOUTHERN CALIFORNIA COAST THIS AFTERNOON AND LINGER THROUGH FRIDAY
MORNING...
...A FAST-MOVING PACIFIC STORM IS SET TO BRING COASTAL RAINS AND
MOUNTAIN SNOWS TO MUCH OF THE PACIFIC NORTHWEST ON FRIDAY BEFORE
RACING ACROSS THE NORTHERN ROCKIES AND UPPER MIDWEST ON
SATURDAY...
ARCTIC AIR COMBINED WITH A MOISTURE-LADEN AREA OF LOW PRESSURE
WILL SET THE STAGE FOR A SIGNIFICANT WINTER STORM ACROSS A LARGE
PORTION OF THE SOUTH THROUGH SATURDAY. A SWATH OF HEAVY SNOW WILL
STRETCH FROM PARTS OF OKLAHOMA, ARKANSAS, AND TEXAS, TO THE
MID-SOUTH, TO THE SOUTHERN APPALACHIANS OVER THE NEXT COUPLE OF
DAYS. WIDESPREAD SNOW ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED,
WITH THE HIGHEST AMOUNTS FOCUSED OVER OKLAHOMA AND ARKANSAS.
FARTHER SOUTH, ACROSS PORTIONS OF NORTHEAST TEXAS, SOUTHERN
ARKANSAS, AND PARTS OF THE SOUTHEAST, SNOW TRANSITIONS TO SLEET
AND FREEZING RAIN AS WARMER AIR ALOFT OVERSPREADS SUB-FREEZING
TEMPERATURES AT THE SURFACE. FREEZING RAIN WILL LEAD TO ICY
CONDITIONS, WITH A TENTH UP TO A QUARTER INCH OF ICE EXPECTED. THE
SNOW, SLEET, AND FREEZING RAIN WILL RESULT IN HAZARDOUS TRAVEL FOR
MANY. IN FACT, NEARLY 50 MILLION PEOPLE ARE CURRENTLY UNDER A
WINTER STORM WARNING. THE STORM WILL QUICKLY MOVE ALONG THE GULF
COAST THROUGH FRIDAY BEFORE EXITING THE EAST COAST OFF THE
CAROLINAS ON SATURDAY. PRIOR TO THE STORM'S DEPARTURE, LIGHT SNOW
WITH GENERALLY MINOR IMPACTS WILL OVERSPREAD PORTIONS OF THE OHIO
VALLEY, MID-ATLANTIC, AND NORTHEAST WITH ACCUMULATIONS RANGING
FROM 1 TO 3 INCHES.
AFTER A BRIEF REPRIEVE FROM DANGEROUS FIRE WEATHER CONDITIONS
ACROSS THE SOUTHERN CALIFORNIA COAST, CRITICAL FIRE WEATHER WILL
RAMP UP AGAIN AS STRONG SANTA ANA WINDS STRENGTHEN ONCE AGAIN.
WHILE WINDS WON'T BE NEARLY AS STRONG AS THE PAST FEW DAYS,
TERRAIN INDUCED WINDS OF 20 TO 30 MPH WITH GUSTS OF 40 TO 60 MPH
WILL STILL BE STRONG ENOUGH TO BE OF CONCERN. COMBINED WITH LOW
RELATIVE HUMIDITY AND DRY FUELS, THE POTENTIAL EXISTS FOR ONGOING
FIRES TO WORSEN AND NEW IGNITIONS TO RAPIDLY SPREAD. DANGEROUS
CONDITIONS ARE EXPECTED TO CONTINUE TONIGHT BEFORE WANING FRIDAY
MORNING.
A FAST-MOVING PACIFIC STORM IS EXPECTED TO RACE ACROSS THE PACIFIC
NORTHWEST, THE NORTHERN ROCKIES AND THE UPPER MIDWEST FRIDAY INTO
SATURDAY. THIS STORM WILL BRING RAIN TO COASTAL LOCATIONS AND
WIDESPREAD SNOW TO THE MOUNTAINS. SIGNIFICANT ACCUMULATIONS ARE
EXPECTED FOR THE HIGHEST ELEVATIONS IN THE PACIFIC NORTHWEST AND
NORTHERN ROCKIES BEFORE TRANSITIONING TO LIGHTER SNOWS ACROSS THE
UPPER MIDWEST.
MILLER
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