589
FXUS01 KWBC 100757
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
256 AM EST FRI JAN 10 2025
VALID 12Z FRI JAN 10 2025 - 12Z SUN JAN 12 2025
...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE ACROSS SOUTHERN
CALIFORNIA THROUGH AT LEAST THIS MORNING...
...A SIGNIFICANT WINTER STORM WILL CONTINUE TO BRING HEAVY SNOW
AND DISRUPTIVE ICE ACROSS MUCH OF THE SOUTH THROUGH SATURDAY
MORNING...
...PACIFIC STORM TO BRING LOWER ELEVATION RAIN/MOUNTAIN SNOW TO
THE PACIFIC NORTHWEST...GREAT BASIN AND ROCKIES THROUGH SATURDAY...
MODIFIED ARCTIC AIR COMBINED WITH A MOISTURE-LADEN AREA OF LOW
PRESSURE ALONG THE GULF COAST WILL CONTINUE TO ALLOW FOR A BROAD
AREA OF WINTER WEATHER IMPACTS FROM THE LOWER MISSISSIPPI VALLEY
TO THE SOUTHEAST TODAY INTO EARLY SATURDAY MORNING. AREAS OF LIGHT
TO MODERATE SNOW WILL TRANSLATE EAST FROM EASTERN OKLAHOMA,
SOUTHERN MISSOURI AND ARKANSAS THIS MORNING INTO AND ACROSS THE
TENNESSEE VALLEY, EVENTUALLY REACHING THE MID-ATLANTIC REGION
TONIGHT. SNOWFALL ACCUMULATIONS OF 4 TO 8 INCHES ARE EXPECTED FROM
NEAR MEMPHIS INTO THE CENTRAL APPALACHIANS. SLEET AND FREEZING
RAIN WILL AFFECT LOCATIONS JUST SOUTH OF THE SNOWFALL, WITH ICE
ACCUMULATIONS LOCALLY IN EXCESS OF 0.25 INCHES FROM FAR
NORTHEASTERN ALABAMA INTO NORTHERN GEORGIA AND UPSTATE SOUTH
CAROLINA. LIGHT SNOWFALL ACCUMULATIONS (1 TO 3 INCHES) ARE
ANTICIPATED FARTHER NORTH FROM THE OHIO VALLEY INTO NORTHERN
PORTIONS OF THE MID-ATLANTIC REGION. BELOW AVERAGE TEMPERATURES
FROM THE SOUTH-CENTRAL TO SOUTHEASTERN U.S. WILL MODERATE INTO THE
WEEKEND BUT REMAIN ROUGHLY 5 TO 15 DEGREES BELOW AVERAGE ON
SATURDAY INTO SUNDAY.
ACROSS THE WESTERN U.S., STRONG HIGH PRESSURE OVER THE GREAT BASIN
WILL BEGIN TO WEAKEN DURING THE DAY TODAY, BUT CRITICAL FIRE
WEATHER CONDITIONS WILL CONTINUE OVER COASTAL LOCATIONS OF
SOUTHERN CALIFORNIA THROUGH THE REMAINDER OF THIS MORNING WITH
LOCALIZED GUSTS TO NEAR 60 MPH. WHILE WIND GUSTS ARE LIKELY TO
WEAKEN INTO THIS AFTERNOON AND EVENING, REMNANT GUSTY WINDS AND
LOW RELATIVE HUMIDITIES WILL CONTINUE DANGEROUS CONDITIONS INTO
THE AFTERNOON AND EVENING.
ELSEWHERE ACROSS THE WESTERN U.S., A QUICK MOVING COLD FRONT WILL
SWEEP ACROSS THE NORTHWEST AND GREAT BASIN TODAY, BRINGING COASTAL
RAIN TO THE PACIFIC NORTHWEST AND MOUNTAIN SNOW TO THE CASCADES,
NORTHERN GREAT BASIN INTO THE NORTHERN AND CENTRAL ROCKIES. LOW
PRESSURE ASSOCIATED WITH THE WESTERN U.S. STORM SYSTEM WILL REACH
THE NORTHERN PLAINS AND UPPER MIDWEST ON SATURDAY/SATURDAY NIGHT,
RESULTING IN LIGHT (1 TO 3 INCH) ACCUMULATIONS FOR EASTERN
MONTANA, NORTH DAKOTA INTO THE UPPER MISSISSIPPI VALLEY.
OTTO
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