598
FXUS01 KWBC 120705
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
204 AM EST SUN JAN 12 2025
VALID 12Z SUN JAN 12 2025 - 12Z TUE JAN 14 2025
...CRITICAL FIRE WEATHER CONDITIONS WILL CONTINUE FOR SOUTHERN
CALIFORNIA INTO EARLY THIS WEEK...
...CLIPPER SYSTEM TO BRING SNOW SHOWERS TO THE GREAT LAKES ALONG
WITH RENEWED SURGE OF ARCTIC AIR TO THE UPPER MIDWEST AND OHIO
VALLEY...
...RAIN FOR THE CENTRAL GULF COAST TODAY AND GEORGIA/FLORIDA ON
MONDAY...
SNOW SHOWERS THAT WERE ONGOING EARLY SUNDAY MORNING FROM THE
NORTHERN GREAT BASIN INTO THE NORTHERN AND CENTRAL ROCKY MOUNTAINS
WILL BEGIN TO TAPER OFF TODAY AS A SURFACE LOW TRACKS TOWARD THE
GREAT LAKES REGION. SNOW SHOWERS WILL LINGER THROUGH MONDAY FROM
PARTS OF MONTANA INTO THE HIGH PLAINS NEAR A STRONG FRONTAL
BOUNDARY BUT SNOWFALL INTENSITY WILL BE DECREASED COMPARED TO WHAT
OCCURRED SATURDAY/SATURDAY NIGHT.
THE SURFACE LOW MOVING INTO THE GREAT LAKES WILL HAVE A TRAILING
COLD FRONT THAT WILL SWEEP ACROSS THE OHIO VALLEY BY MONDAY
MORNING, BRINGING A RENEWED SURGE OF ARCTIC AIR IN ITS WAKE. HIGH
TEMPERATURES THAT ARE ONLY IN THE SINGLE DIGITS AND TEENS WILL
AFFECT THE NORTHERN PLAINS TODAY WITH THE COLD, CLIPPER-LIKE
SYSTEM CONTINUING EASTWARD THROUGH TUESDAY MORNING WITH HIGH
TEMPERATURE DEPARTURES OF 10 TO 20 DEGREES FROM NORMAL FOLLOWING
IN ITS WAKE, REACHING THE MIDWEST ON MONDAY AND EAST COAST FOR
TUESDAY. SNOW SHOWERS WILL LIKELY TRACK WITH THE FRONT AS IT MOVES
EAST ACROSS THE UPPER OHIO VALLEY INTO THE NORTHEAST ON MONDAY,
BRIEFLY REDUCING VISIBILITIES.
FIRE WEATHER CONCERNS WILL REMAIN ACROSS COASTAL LOCATIONS OF
SOUTHERN CALIFORNIA TODAY WITH WINDS GUSTING BETWEEN 30-50 MPH
EARLY THIS MORNING. WEAKENING WINDS ARE EXPECTED INTO THIS
AFTERNOON/EVENING AS THE PRESSURE GRADIENT WEAKENS ACROSS THE
REGION. HOWEVER, A RESURGENCE OF GUSTY WINDS IS FORECAST SUNDAY
NIGHT INTO MONDAY ACROSS SOUTHERN CALIFORNIA AS MID-LEVEL IMPULSES
SINK SOUTH ACROSS THE WESTERN U.S., ALLOWING FOR A RE-TIGHTENING
OF THE SURFACE PRESSURE GRADIENT AND GUSTY DOWNSLOPE/OFFSHORE
WINDS.
FOR THE GULF COAST, AN AREA OF LOW PRESSURE WILL FORM ALONG A
REMNANT FRONTAL BOUNDARY OVER THE OPEN GULF WATERS SUNDAY NIGHT
AND TRACK TOWARD THE CENTRAL GULF COAST. RAIN WILL INCREASE IN
COVERAGE LATE THIS MORNING ACROSS THE UPPER TEXAS COAST INTO
SOUTHERN LOUISIANA AND STEADILY MOVE EAST THROUGH SUNDAY NIGHT. BY
MONDAY MORNING, RAIN WILL BE AFFECTING THE FLORIDA PANHANDLE INTO
PORTIONS OF SOUTHERN ALABAMA/GEORGIA BUT RAINFALL INTENSITY WILL
DIMINISH THROUGHOUT THE DAY ON MONDAY. WHILE SOME LIGHT RAIN MAY
CONTINUE OVER FLORIDA NEAR A FRONTAL BOUNDARY TUESDAY MORNING,
MUCH OF THE U.S. WILL SEE RELATIVELY QUIET WEATHER.
OTTO
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