964
FXUS01 KWBC 290747
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
246 AM EST WED JAN 29 2025
VALID 12Z WED JAN 29 2025 - 12Z FRI JAN 31 2025
...HEAVY RAIN, SEVERE WEATHER, AND FLASH FLOODING POSSIBLE FROM
THE SOUTHERN PLAINS TO TO THE MID/LOWER MISSISSIPPI VALLEY...
...HEAVY SNOW AND SNOW SQUALLS POSSIBLE IN THE GREAT LAKES AND
NORTHEAST TODAY...
...ATMOSPHERIC RIVER TO BRING HEAVY RAIN AND MOUNTAIN SNOW TO THE
PACIFIC NORTHWEST AND NORTHERN CALIFORNIA LATE THIS WEEK INTO THE
WEEKEND...
A STRONG BUT SLOW MOVING LOW PRESSURE SYSTEM WILL PUSH ACROSS THE
SOUTHERN/CENTRAL PLAINS AND INTO THE MISSISSIPPI VALLEY ON
THURSDAY. WARM, MOIST AIR FROM THE GULF WILL STREAM INTO THE
SOUTH-CENTRAL U.S. AHEAD OF THE SYSTEM AND PROVIDE SUPPORT FOR
WIDESPREAD SHOWERS AND THUNDERSTORMS. HEAVY RAINFALL IN EXPECTED
OVER THE SOUTHERN PLAINS TODAY AND FROM EASTERN TEXAS THROUGH THE
MID/LOWER MISSISSIPPI VALLEY ON THURSDAY. ISOLATED TO SCATTERED
INSTANCES OF FLASH FLOODING WILL BE POSSIBLE, ESPECIALLY IN URBAN
AND POOR DRAINAGE AREAS AND AREAS THAT EXPERIENCE TRAINING/REPEAT
CONVECTION. CONDITIONS WILL ALSO BE FAVORABLE FOR ISOLATED STRONG
TO SEVERE THUNDERSTORMS FROM CENTRAL TEXAS EAST THROUGH THE LOWER
MISSISSIPPI VALLEY TODAY AND THURSDAY. ON THE BACKSIDE OF THE LOW
PRESSURE SYSTEM, COLDER AIR WILL ALLOW FOR WINTRY WEATHER OVER
PORTIONS OF THE FOUR CORNERS STATES, AND LOCALLY HEAVY SNOW WILL
BE POSSIBLE IN THE HIGHER TERRAIN OF NORTHERN NEW MEXICO AND
SOUTHERN COLORADO. THIS LOW PRESSURE SYSTEM WILL TRACK NORTHEAST
INTO THE MIDWEST ON FRIDAY, AND PRECIPITATION CHANCES WILL SPREAD
TOWARDS THE EAST COAST AND NORTHEAST.
TO THE NORTH, A COUPLE OF LOWS WILL SWING ACROSS SOUTHERN CANADA
AND CLIP THE NORTHERN GREAT LAKES AND NORTHEAST, PRODUCING CHANCES
FOR WINTRY WEATHER. THE FIRST LOW WILL PASS OVER THE NORTHEAST
TODAY, PUSHING A POTENT COLD FRONT SOUTH ACROSS THE GREAT LAKES
AND NORTHEAST. SNOW SQUALLS WILL BE POSSIBLE TODAY FOR PORTIONS OF
THE EASTERN GREAT LAKES, NORTHEAST, AND EVEN INTO THE NORTHERN
MID-ATLANTIC AS THE FRONT DROPS SOUTH. SNOW SQUALLS MAY CAUSE
INTENSE BURSTS OF HEAVY SNOW WITH GUSTY WINDS, RESULTING IN
PERIODS OF LOW VISIBILITY AND DANGEROUS DRIVING CONDITIONS.
ACCUMULATING SNOW IS EXPECTED FROM THE EASTERN GREAT LAKES THROUGH
INTERIOR NEW ENGLAND, WITH THE HEAVIEST SNOW LIKELY DOWNWIND OF
LAKES ONTARIO AND ERIE AND IN THE MOUNTAINS OF NEW HAMPSHIRE AND
VERMONT. THESE REGIONS CAN EXPECT A BRIEF BREAK FROM WINTRY
WEATHER ON THURSDAY AS A WARM FRONT LIFTS NORTH, THEN MORE WINTRY
WEATHER WILL BE POSSIBLE ON FRIDAY AS THE SECOND LOW MOVES ACROSS
THE GREAT LAKES.
MAINLY DRY WEATHER IS EXPECTED IN THE WEST WITH HIGH PRESSURE
DOMINATING THE WEATHER PATTERN THROUGH THURSDAY. ON FRIDAY, HIGH
PRESSURE WILL BE SHUNTED EAST AS A LOW PRESSURE SYSTEM APPROACHES
THE WEST COAST. THIS SYSTEM WILL AIM A STREAM OF PACIFIC MOISTURE
(ATMOSPHERIC RIVER) AT THE COAST, FOCUSING INITIALLY ON THE
PACIFIC NORTHWEST ON FRIDAY THEN SHIFTING SOUTH INTO NORTHERN
CALIFORNIA ON SATURDAY. WIDESPREAD HEAVY RAIN AND MOUNTAIN SNOW
ARE EXPECTED, AND FLOODING CONCERNS WILL BE HEIGHTENED ALONG THE
COAST.
THE WEATHER PATTERN WILL FAVOR WELL ABOVE NORMAL TEMPERATURES
THROUGH THE END OF THE WORK WEEK FOR MUCH OF THE CENTRAL AND
EASTERN U.S., EXCEPT FOR THE NORTHEAST WHERE BELOW NORMAL
TEMPERATURES ARE EXPECTED THROUGH THURSDAY AFTER A COLD FRONT
PASSES THROUGH. HIGH TEMPERATURES ARE EXPECTED TO BE 10 TO 20+
DEGREES ABOVE NORMAL, WITH THE GREATEST ANOMALIES OVER THE
NORTHERN/CENTRAL PLAINS AND UPPER MIDWEST WHERE A HANDFUL OF DAILY
HIGH TEMPERATURE RECORDS WILL BE POSSIBLE ON THURSDAY. BELOW
NORMAL TEMPERATURES WILL LIKELY LINGER FROM SOUTHERN CALIFORNIA
THROUGH THE SOUTHWEST THROUGH THURSDAY, THEN RETURN TO NEAR NORMAL
ON FRIDAY.
DOLAN
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