366
FXUS01 KWBC 270754
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
353 AM EDT MON MAY 27 2024
VALID 12Z MON MAY 27 2024 - 12Z WED MAY 29 2024
...SEVERE THUNDERSTORMS AND AREAS OF HEAVY RAIN TO IMPACT MUCH OF
THE EASTERN U.S., WITH ISOLATED SEVERE WEATHER POSSIBLE IN THE
SOUTHERN PLAINS...
...DANGEROUS HEAT REMAINS IN PLACE THIS MEMORIAL DAY THROUGHOUT
SOUTHERN/CENTRAL TEXAS, THE WESTERN AND CENTRAL GULF COAST, AS
WELL AS SOUTHERN FLORIDA BEFORE SOME GRADUAL RELIEF BY MIDWEEK...
...UNSETTLED WEATHER AND THUNDERSTORMS RETURN TO THE SOUTHERN
PLAINS ON TUESDAY, AS WELL AS THE NORTHERN GREAT BASIN AND
NORTHERN ROCKIES...
THE SEVERE WEATHER THREAT SHIFTS EASTWARD TODAY ALONG A COLD FRONT
EXTENDING SOUTHWARD FROM A LOW PRESSURE SYSTEM FORECAST TO SLIDE
NORTHEAST OVER THE GREAT LAKES. ONGOING STORMS STRETCHING FROM THE
UPPER OHIO VALLEY TO THE LOWER MISSISSIPPI VALLEY ARE EXPECTED TO
WEAKEN THIS MORNING, BUT REDEVELOPMENT IS LIKELY THIS AFTERNOON
ALONG AND AHEAD OF THIS BOUNDARY. CLUSTERS OF MERGING
THUNDERSTORMS ARE POSSIBLE IN THE MID-ATLANTIC AND NORTHEAST,
WHICH MAY ALSO CONTAIN INTENSE RAINFALL RATES. THIS HEAVY RAIN
COULD LEAD TO SCATTERED INSTANCES OF FLASH FLOODING FROM NORTHEAST
MARYLAND TO THE CATSKILL MOUNTAINS OF NEW YORK, WHERE A SLIGHT
RISK (LEVEL 2/4) OF EXCESSIVE RAINFALL IS IN EFFECT THROUGH
TONIGHT. THE SEVERE WEATHER THREAT INCLUDES A BROADER REGION
EXTENDING FROM THE LOWER GREAT LAKES TO THE SOUTHEAST, WITH
DAMAGING WIND GUSTS AND HAIL THE PRIMARY HAZARDS, WITH ISOLATED
TORNADOES POSSIBLE IN THE EASTERN MID-ATLANTIC. AS THE COLD FRONT
EXTENDS WESTWARD TOWARDS THE SOUTHERN PLAINS, A FEW ISOLATED
SEVERE THUNDERSTORMS ARE ALSO POSSIBLE IN PARTS OF CENTRAL AND
EASTERN TEXAS.
SOUTH OF THE COLD FRONT IN PARTS OF TEXAS, THE GULF COAST, AND
SOUTHERN FLORIDA, OPPRESSIVE AND DANGEROUS HEAT CONTINUES TODAY.
HIGHS INTO THE UPPER 90S AND TRIPLE DIGITS ARE FORECAST THROUGHOUT
MUCH OF THE LONE STAR STATE, WITH A FEW DAILY RECORD HIGHS
POSSIBLE. ELEVATED HUMIDITY LEVELS WILL LEAD TO HEAT INDICES UP TO
120 DEGREES ACROSS PORTIONS OF SOUTHERN TEXAS. EXCESSIVE HEAT
WARNINGS AND HEAT ADVISORIES ARE IN EFFECT FROM SOUTH-CENTRAL
TEXAS TO THE CENTRAL GULF COAST. ADDITIONALLY, A SIMMERING
MEMORIAL DAY IS ALSO IN STORE FOR PARTS OF THE FLORIDA PENINSULA,
WHERE DAILY RECORD HIGHS COULD BE TIED/BROKEN IN KEY WEST, PORT ST
LUCIE, AND MELBOURNE. SUMMER HEAT IS EXPECTED TO LINGER OVER THE
SUNSHINE STATE THROUGH MIDWEEK, WHILE GRADUAL COOLING ENTERS THE
GULF COAST AND TEXAS AS AN APPROACHING COLD FRONT INCHES TOWARDS
THE REGION. RESIDENTS ARE REMINDED TO FOLLOW PROPER HEAT SAFETY
AND CHECK ON THE VULNERABLE POPULATION OVER AT LEAST THE NEXT FEW
DAYS.
THE NEXT ROUND OF ACTIVE WEATHER SHOULD RETURN TO THE SOUTHERN
PLAINS ON TUESDAY AS SCATTERED THUNDERSTORMS IMPACT PARTS OF
SOUTHEAST NEW MEXICO AND MUCH OF TEXAS NEAR A LINGERING STATIONARY
FRONT. SEVERE WIND GUSTS AND LARGE HAIL ARE POSSIBLE, AS WELL AS
HEAVY RAIN PRODUCING SCATTERED AREAS OF FLASH FLOODING. MEANWHILE,
A SEPARATE AREA OF THUNDERSTORMS IS POSSIBLE ALONG A COLD FRONT AS
IT PROGRESSES FROM THE NORTHERN GREAT BASIN ON TUESDAY INTO THE
NORTHERN HIGH PLAINS ON WEDNESDAY. ISOLATED THUNDERSTORMS COULD
TURN SEVERE AND CONTAIN INTENSE RAINFALL RATES IN THESE REGIONS.
HAVE A SAFE MEMORIAL DAY!
SNELL
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