729
FXUS01 KWBC 240752
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
251 AM EST MON FEB 24 2025
VALID 12Z MON FEB 24 2025 - 12Z WED FEB 26 2025
...ATMOSPHERIC RIVER BRINGING HEAVY RAIN, GUSTY WINDS, AND
SCATTERED INSTANCES OF FLOODING TO THE NORTHWEST THROUGH MONDAY...
...SHOWERS AND THUNDERSTORMS WITH LOCALLY HEAVY RAINFALL FORECAST
FOR THE FLORIDA PENINSULA MONDAY...
...TEMPERATURES CONTINUE TO SLOWLY MODERATE ACROSS THE SOUTHERN
U.S. AS MOST OF THE COUNTRY SEES A PERIOD OF ABOVE AVERAGE, MILDER
TEMPERATURES...
HEAVY RAIN, GUSTY WINDS, AND THE THREAT FOR FLOODING CONTINUES
THROUGHOUT THE PACIFIC NORTHWEST EAST THROUGH THE NORTHERN GREAT
BASIN AND ROCKIES AS AN ACTIVE PACIFIC STORM TRACK/ATMOSPHERIC
RIVER IMPACT THE REGION. AFTER PRECIPIATION WANED A BIT OVERNIGHT
FOLLOWING THE PASSAGE OF ONE SYSTEM, ANOTHER PACIFIC SYSTEM WILL
MOVE INLAND THROUGH THE DAY MONDAY BRINGING ADDITIONAL SHOWERS AND
THUNDERSTORMS. MILD PACIFIC AIR WILL KEEP SNOW LEVELS HIGH
ALLOWING FOR STRONG UPSLOPE FLOW ALONG THE OLYMPICS, COASTAL
RANGES, AND CASCADES WITH HEAVY RAINFALL EXPECTED. A SLIGHT RISK
OF EXCESSIVE RAINFALL (LEVEL 2/4) IS ONCE AGAIN IN EFFECT TODAY
FOR PORTIONS OF THE REGION AS ADDITIONAL RAINFALL ON TOP OF
ALREADY SATURATED GROUNDS MAY LEAD TO SOME SCATTERED INSTANCES OF
FLOODING. THE SYSTEM WILL CONTINUE EASTWARD THROUGH MONDAY NIGHT
BRINGING ADDITIONAL RAINFALL TO THE NORTHERN GREAT BASIN AND
ROCKIES. RUNOFF FROM SNOW MELT COMBINED WITH THE RAINFALL COULD
LEAD TO A FEW MORE ISOLATED INSTANCES OF FLOODING IN THE NORTHERN
ROCKIES THROUGH MONDAY AFTERNOON. SNOW LEVELS WILL FALL BEHIND THE
PASSAGE OF A COLD FRONT AND SOME SNOW MAY MIX IN FOR LOWER VALLEY
ELEVATIONS INTO MONDAY NIGHT, THOUGH LITTLE TO NO ACCUMULATIONS
ARE EXPECTED. HIGH MOUNTAIN ELEVATIONS WILL SEE HEAVY SNOW,
PARTICULARLY THE THE NORTHERN CASCADES AND RANGES OF THE NORTHERN
ROCKIES. VERY STRONG WINDS WITH GUSTS UPWARDS OF 60 MPH ARE ALSO
EXPECTED THROUGHOUT THE REGION THROUGH MONDAY NIGHT. CONDITIONS
WILL FINALLY START TO DRY OUT FOLLOWING THE PASSAGE OF THIS SYSTEM
WITH SOME LINGERING LIGHTER AND MORE SCATTERED SHOWERS TUESDAY.
VERY MOIST GULF AIR FLOWING NORTHWARD OVER THE FLORIDA PENINSULA
AHEAD OF A LOW PRESSURE SYSTEM WILL LEAD TO WIDESPREAD SHOWERS AND
THUNDERSTORMS MONDAY. LOCALLY VERY HEAVY DOWNPOURS ARE EXPECTED
AND SOME ISOLATED FLASH FLOODING WILL BE POSSIBLE FOR URBAN AREAS
OF SOUTH FLORIDA. THE STORMS SHOULD COME TO AN END BY EARLY
TUESDAY MORNING AS THE SYSTEM MOVES EASTWARD INTO THE ATLANTIC.
ELSEWHERE, A PAIR OF QUICK MOVING UPPER-LEVEL SHORTWAVES WILL
BRING SOME LIGHT ISOLATED TO SCATTERED RAIN/SNOW SHOWERS FROM THE
NORTHERN PLAINS EAST THROUGH THE GREAT LAKES INTO THE INTERIOR
NORTHEAST THE NEXT COUPLE OF DAYS.
CONDITIONS WILL CONTINUE TO MODERATE ACROSS THE SOUTHEAST
FOLLOWING THE ARCTIC BLAST LAST WEEK AND LINGERING BELOW AVERAGE
TEMPERATURES THIS WEEKEND. FORECAST HIGHS MONDAY IN THE UPPER 50S
TO MID-60S ARE NEAR OR JUST ABOVE AVERAGE FOR MOST LOCATIONS. THE
ENTIRE SOUTHEAST WILL BE ABOVE AVERAGE BY TUESDAY AS HIGHS RISE
INTO THE MID-60S TO LOW 70S. A WARM-UP WILL ALSO CONTINUE FOR THE
EAST COAST AS HIGHS RISE INTO THE 40S FOR NEW ENGLAND AND THE
NORTHERN MID-ATLANTIC AND THE 50S AND 60S FOR THE SOUTHERN
MID-ATLANTIC AND CAROLINAS. BROAD UPPER-RIDGING OVER THE WESTERN
AND CENTRAL U.S WILL KEEP MOST AREAS WELL ABOVE AVERAGE BY 10-15
DEGREES THE NEXT COUPLE OF DAYS. FORECAST HIGHS RANGE FROM THE 40S
AND 50S IN THE MIDWEST, THE 50S AND 60S FOR THE GREAT BASIN AND
NORTHERN/CENTRAL PLAINS, THE 60S AND 70S FOR CALIFORNIA AND THE
SOUTHERN PLAINS, AND THE 80S FOR THE DESERT SOUTHWEST. ONE
EXCEPTION WILL BE IN THE NORTHWEST WHERE AVERAGE HIGHS IN THE 40S
AND 50S ARE FORECAST FOLLOWING A COLD FRONT PASSAGE.
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