510
FXUS01 KWBC 061834
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
231 PM EDT SUN APR 06 2025
VALID 00Z MON APR 07 2025 - 00Z WED APR 09 2025
...A LINGERING CONCERN FOR HEAVY RAINFALL AND FLASH FLOODING WILL
EXIST OVER THE SOUTHEAST AND PORTIONS OF THE GULF COAST THROUGH
TONIGHT...
...SEVERE WEATHER CONCERNS WILL PERSIST INTO MONDAY ACROSS
PORTIONS OF THE SOUTHEAST THROUGH MONDAY...
...WINTRY WEATHER WITH SOME ACCUMULATING SNOWFALL EXPECTED AROUND
THE GREAT LAKES AND PARTS OF THE NORTHEAST...
...UNSETTLED WEATHER IMPACT THE PACIFIC NORTHWEST AND NORTHERN
ROCKIES THROUGH THE EARLY PART OF THIS WEEK...
AFTER SEVERAL DAYS OF EXTREME RAINFALL AND DEVASTATING FLOODING
ACROSS PARTS OF THE OHIO VALLEY, MID-SOUTH, MIDDLE AND LOWER
MISSISSIPPI VALLEYS, THERE IS STILL SOME THREAT FOR HEAVY RAINFALL
AND FLASH FLOODING FOR PORTIONS OF THE SOUTHEAST AND THE GULF
COAST REGION GOING THROUGH THIS EVENING AND OVERNIGHT. THIS WILL
BE CAUSED BY A SLOW-MOVING FRONTAL ZONE WITH MULTIPLE WAVES OF LOW
PRESSURE RIDING ALONG IT WHICH WILL BE FOCUSING SLOW-MOVING AREAS
OF HEAVY SHOWERS AND THUNDERSTORMS. THE WEATHER PREDICTION CENTER
HAS DEPICTED A MODERATE RISK (LEVEL 3/4) OF EXCESSIVE RAINFALL
ACROSS AREAS OF CENTRAL AND SOUTHERN ALABAMA WITH A BROADER SLIGHT
RISK (LEVEL 2/4) ACROSS ADJACENT AREAS OF THE INTERIOR OF THE
SOUTHEAST AND THE CENTRAL GULF COAST REGION GOING INTO TONIGHT.
SOME SEVERE WEATHER WILL BE POSSIBLE AS WELL ACROSS THIS REGION,
AND THE STORM PREDICTION CENTER HAS DEPICTED A SLIGHT RISK (LEVEL
2/5) OF SEVERE WEATHER OVER MANY OF THE SAME AREAS WITH CONCERNS
FOR LOCALLY DAMAGING WINDS AND AN ISOLATED TORNADO. OVERALL, THE
EXCESSIVE RAINFALL RAINFALL THREAT WILL DIMINISH GOING INTO MONDAY
AS THIS FRONT AND ASSOCIATED WAVES OF LOW PRESSURE BEGIN TO CLEAR
THROUGH THE SOUTHEAST U.S. AND MOVE OFFSHORE. A LINGERING THREAT
FOR SOME SEVERE THUNDERSTORMS WILL EXIST OVER THE COASTAL PLAIN OF
THE SOUTHEAST ON MONDAY WITH SOME DAMAGING WIND POTENTIAL BEFORE
THE FRONT PASSES THROUGH.
MEANWHILE FARTHER NORTH ON THE COOL SIDE OF THIS FRONT, SOME LIGHT
TO MODERATE RAINS WILL OVERSPREAD PARTS OF THE MID-ATLANTIC IN
CONNECTION TO THE CLOSE PROXIMITY OF LOW PRESSURE JUST TO THE
SOUTH. HOWEVER, AREAS OF THE GREAT LAKES AND NORTHEAST WILL BE
SEEING THE ARRIVAL OF MUCH COLDER TEMPERATURES BEHIND A COLD
FRONT, AND THIS WILL BRING A THREAT FOR SOME LAKE-EFFECT SNOWFALL
DOWNWIND OF THE LAKES AND INTO SOME OF THE UPSLOPE AREAS OF THE
THE NORTHERN APPALACHIANS. THIS WILL BE ALSO INFLUENCED BY A
DEEPENING AREA OF LOW PRESSURE NEAR NEW ENGLAND AND OVER THE
CANADIAN MARITIMES WHICH WILL FACILITATE SOME SNOWFALL ACROSS THE
FAR NORTHERN MID-ATLANTIC AND ESPECIALLY NEW ENGLAND. OVERALL,
ACCUMULATIONS WILL BE RATHER LIGHT, BUT LOCALLY SEVERAL INCHES OF
SNOW WILL BE POSSIBLE OVER THE HIGHER ELEVATIONS AND ALSO WHERE
ANY HEAVIER LAKE-ENHANCED SNOWFALL SETS UP. SOME CONCERNS FOR EVEN
LITTLE BIT OF LATE-SEASON SLEET AND FREEZING RAIN WILL BE POSSIBLE
LOCALLY FOR PARTS OF THE INTERIOR OF THE NORTHEAST BEFORE LOW
PRESSURE FINALLY MOVES AWAY FROM THE NORTHEAST. TEMPERATURES FOR
THE START OF THE NEW WEEK WILL BE BELOW NORMAL ACROSS MUCH OF THE
EAST AND THE SOUTH, BUT OVERALL, THE PATTERN WILL TURN MUCH DRIER
AND MORE TRANQUIL COMPARED TO THE LAST SEVERAL DAYS.
ELSEWHERE, A SERIES OF FRONTS WILL BRING EPISODES OF UNSETTLED
WEATHER TO THE PACIFIC NORTHWEST, AND THE NORTHERN ROCKIES GOING
THROUGH TUESDAY. THESE FRONTAL SYSTEMS WILL BRING PACIFIC MOISTURE
INLAND WITH INTERMITTENT SHOWER ACTIVITY. RAIN WILL FALL ACROSS
COASTAL LOCATIONS AND THE LOWER ELEVATIONS WHILE SNOW WILL OCCUR
OVER THE HIGH COUNTRY. THE HEAVIEST SNOWFALL WILL BE CONFINED TO
THE HIGHER ELEVATIONS OF THE OLYMPIC MOUNTAINS AND THE CASCADES
WHERE AN ADDITIONAL 1 TO 2+ FEET CAN EXPECTED OVER THE COUPLE OF
DAYS.
THE REMAINDER OF THE COUNTRY SHOULD BE DRY FOR THE NEXT COUPLE OF
DAYS, BUT GENERALLY WARM, WITH TEMPERATURES ACROSS MUCH OF THE
SOUTHWEST, INTERMOUNTAIN WEST AND THE HIGH PLAINS SEEING
TEMPERATURES TRENDING ABOVE NORMAL. THIS WILL INCLUDE SOME
PORTIONS OF THE DESERT SOUTHWEST SEEING HIGH TEMPERATURES BY
TUESDAY REACHING WELL INTO THE 90S.
ORRISON
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