009
FXUS01 KWBC 110734
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
233 AM EST SAT JAN 11 2025
VALID 12Z SAT JAN 11 2025 - 12Z MON JAN 13 2025
...A RETURN TO DANGEROUS FIRE WEATHER CONCERNS FOR SOUTHERN
CALIFORNIA BEGINNING LATER TODAY...
...MODERATE TO LOCALLY HEAVY SNOW FOR THE PARTS OF THE NORTHERN TO
CENTRAL ROCKIES...
...BELOW AVERAGE HIGH TEMPERATURES FOR MUCH OF THE LOWER 48 THIS
WEEKEND AFTER DEPARTURE OF SOUTHERN MID-ATLANTIC WINTER STORM...
A SIGNIFICANT WINTER STORM THAT BROUGHT WIDESPREAD IMPACTS TO MUCH
OF THE SOUTH OVER THE PAST COUPLE OF DAYS WILL QUICKLY MOVE AWAY
FROM THE EAST COAST THIS MORNING, LEAVING LIGHT SNOW SHOWERS IN
ITS WAKE FOR THE CENTRAL APPALACHIANS AND NEW ENGLAND. HIGH
PRESSURE AND QUIETER WEATHER WILL SETTLE INTO LOCATIONS EAST OF
THE MISSISSIPPI RIVER THROUGH SUNDAY MORNING BUT MORE RAIN IS
EXPECTED FOR THE CENTRAL GULF COAST SUNDAY INTO MONDAY AS LOW
PRESSURE ORGANIZES IN THE GULF OF MEXICO, SENDING ANOMALOUS
MOISTURE NORTHWARD. TEMPERATURES WILL BE COLD TODAY FOR THE
SOUTHERN/SOUTHEASTERN U.S. WITH HIGH TEMPERATURE DEPARTURES
RUNNING 10 TO 20 DEGREES BELOW AVERAGE. BELOW AVERAGE TEMPERATURES
WILL ALSO EXTEND INTO THE MIDWEST, OHIO VALLEY AND NORTHEAST BUT
MAINE WILL BE CLOSE TO AVERAGE FOR MID-JANUARY. SOME MODERATION OF
THE COLD TEMPERATURES WILL OCCUR FOR SUNDAY FOR THE SOUTH AND
EAST, EXCEPT FOR NEW ENGLAND WHICH WILL BE NEAR TO ABOVE AVERAGE.
OUT WEST, AN UPPER LEVEL TROUGH WILL CONTINUE TO ADVANCE EASTWARD
FROM THE CENTRAL ROCKIES TODAY WITH MODERATE TO LOCALLY HEAVY SNOW
SHOWERS CONTINUING THROUGH SATURDAY NIGHT FOR NORTHERN SECTIONS OF
THE GREAT BASIN AND NORTHERN/CENTRAL ROCKIES IN ITS WAKE VIA
NORTHWESTERLY TO NORTHERLY FLOW BEHIND THE UPPER TROUGH AXIS. SNOW
WILL CONTINUE NEAR A STRONG FRONTAL BOUNDARY IN CENTRAL MONTANA ON
SUNDAY BUT SUBSIDE ELSEWHERE ACROSS MUCH OF THE WEST. BY MONDAY
MORNING, LOCALIZED SNOWFALL ACCUMULATIONS OF 1 TO 2 FEET ARE
EXPECTED FOR PORTIONS OF CENTRAL AND SOUTHERN MONTANA INTO THE BIG
HORN MOUNTAINS OF WYOMING.
HIGH TEMPERATURES ACROSS THE WEST WILL GENERALLY BE BELOW AVERAGE
THIS WEEKEND WHILE TEMPERATURES ALONG THE WEST COAST REMAIN NEAR
AVERAGE THROUGH THE WEEKEND. THE EXCEPTION TO COLDER THAN AVERAGE
HIGH TEMPERATURES FOR THE LOWER 48 WILL BE IN AND AROUND THE UPPER
GREAT LAKES WHICH WILL LIE ON THE WARM SIDE OF LOW PRESSURE
TRACKING ACROSS THE NORTH-CENTRAL U.S. WITH COLDER AIR FILTERING
INTO THE REGION BEHIND THE LOW ON MONDAY.
IN SOUTHERN CALIFORNIA, A RETURN TO HEIGHTENED FIRE WEATHER
CONDITIONS WILL RETURN LATER TODAY AFTER A BRIEF LULL FROM FRIDAY
NIGHT. HIGH PRESSURE WILL INCREASE ACROSS THE GREAT BASIN TODAY AS
A SURGE OF COLDER AIR MOVES INTO THE REGION BEHIND A COLD FRONT
WHICH IS FORECAST TO MOVE INTO MEXICO SUNDAY MORNING. GUSTY
OFFSHORE WINDS ALONG THE COAST OF SOUTHERN CALIFORNIA SUPPORT A
CRITICAL RISK AREA FOR SATURDAY AS HIGHLIGHTED BY THE STORM
PREDICTION CENTER, WITH THESE DANGEROUS CONDITIONS CONTINUING INTO
MONDAY.
OTTO
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