341
FXUS01 KWBC 301952
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
351 PM EDT THU APR 30 2026
VALID 00Z FRI MAY 01 2026 - 00Z SUN MAY 03 2026
...WIDESPREAD THUNDERSTORMS WILL CONTINUE ALONG A QUASI-STATIONARY
FRONTAL BOUNDARY ACROSS PORTIONS OF TEXAS INTO THE LOWER
MISSISSIPPI VALLEY THROUGH FRIDAY BRINGING SCATTERED FLASH
FLOODING....
...HEAVY SNOW CONTINUES FOR HIGHER ELEVATIONS OF THE
CENTRAL/SOUTHERN ROCKIES THROUGH FRIDAY...
...COOLER, MUCH BELOW AVERAGE TEMPERATURES WILL CONTINUE INTO THE
EARLY WEEKEND FOR THE EASTERN AND CENTRAL U.S. WHILE CONDITIONS
WARM ACROSS THE WEST...
WIDESPREAD SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH THE END
OF THE WORK WEEK ALONG AND NORTH OF A STALLING FRONTAL BOUNDARY
STRETCHING WEST ALONG THE GULF COAST THROUGH SOUTHERN/WESTERN
TEXAS AND INTO PORTIONS OF THE SOUTHERN HIGH PLAINS/SOUTHWEST. A
FAVORABLY TIMED UPPER-WAVE AND ANOMALOUSLY HIGH MOISTURE POOLING
ALONG THE BOUNDARY WILL LEAD TO ROBUST, HEAVY RAINFALL PRODUCING
STORMS WITH THE BOUNDARY SERVING TO SUPPORT REPEATED ROUNDS MOVING
OVER THE SAME AREAS. A SLIGHT RISK OF EXCESSIVE RAINFALL (LEVEL
2/4) REMAINS IN EFFECT FOR PORTIONS OF CENTRAL TEXAS AND THE TEXAS
HILL COUNTRY WHERE SCATTERED INSTANCES OF FLASH FLOODING ARE
POSSIBLE THROUGH TONIGHT, WITH A BROADER MARGINAL RISK (LEVEL 1/4)
THROUGH THE REGION FOR A FEW MORE ISOLATED INSTANCES. THE THREAT
EXPANDS EASTWARD ON FRIDAY WITH A SLIGHT RISK EXTENDING FROM
CENTRAL/EASTERN TEXAS INTO THE LOWER MISSISSIPPI VALLEY FOR MORE
SCATTERED INSTANCES OF FLASH FLOODING. A FOCUSED CORRIDOR OF
POTENTIALLY MORE NUMEROUS INSTANCES OF FLASH FLOODING IS POSSIBLE
GENERALLY ALONG THE I-10 CORRIDOR. THE FRONT WILL BEGIN TO MOVE
SOUTHWARD INTO THE GULF AND EASTWARD THROUGH THE SOUTHEAST
SATURDAY WITH MORE PROGRESSIVE STORMS RESULTING IN LESS WIDESPREAD
HEAVY RAINFALL, THOUGH ISOLATED FLASH FLOODING WILL REMAIN
POSSIBLE. A DEVELOPING COASTAL LOW COULD BRING SOME MORE MODERATE
RAINFALL NORTHWARD INTO THE CAROLINAS/SOUTHERN MID-ATLANTIC
SATURDAY AS WELL. IN ADDITION TO THE RAINFALL, MOIST UPSLOPE FLOW
ALONG THE CENTRAL/SOUTHERN ROCKIES WILL BRING HEAVY SNOW TO HIGHER
ELEVATIONS THROUGH FRIDAY, WITH TOTALS OF 6-12"+ EXPECTED. SOME
SNOW MAY MIX IN FOR ADJACENT HIGHER ELEVATIONS OF THE HIGH PLAINS,
THOUGH ACCUMULATIONS HERE SHOULD REMAIN LIMITED. ELSEWHERE,
LINGERING SHOWERS WILL GRADUALLY TAPER OFF FROM WEST TO EAST
ACROSS NEW ENGLAND THIS EVENING AND INTO THE EARLY MORNING HOURS
FRIDAY AS A LOW PRESSURE/FRONTAL SYSTEM PASSES THROUGH THE REGION.
A SECONDARY SURFACE WAVE/FRONT PASSING THROUGH THE MIDWEST TO
INTERIOR NORTHEAST WILL ALSO BRING SOME SCATTERED LIGHT SHOWERS
TONIGHT AND THROUGH THE DAY TOMORROW. SOME WINTRY PRECIPITATION
MAY MIX IN FOR PORTIONS OF THE INTERIOR NORTHEAST, BUT NO
ACCUMULATIONS ARE EXPECTED. A FRONTAL SYSTEM MOVING INTO THE
NORTHWESTERN U.S. MAY BRING SOME WIDELY SCATTERED SHOWERS AND
THUNDERSTORMS TO THE NORTHERN ROCKIES AS WELL AS THE PACIFIC
NORTHWEST/NORTHERN CALIFORNIA SATURDAY.
COOLER, BELOW AVERAGE TEMPERATURES HAVE SETTLED IN ACROSS MOST OF
THE EASTERN AND CENTRAL U.S. FOLLOWING A COLD FRONT PASSAGE AND
WILL LINGER INTO THE WEEKEND. FORECAST HIGHS THE NEXT COUPLE OF
DAYS GENERALLY RANGE IN THE 40S AND 50S FROM THE NORTHERN PLAINS
EAST THROUGH THE GREAT LAKES AND INTO NEW ENGLAND; THE 50S AND 60S
FOR THE CENTRAL/SOUTHERN PLAINS EAST THROUGH THE MISSISSIPPI/OHIO
VALLEYS AND INTO THE MID-ATLANTIC; AND THE 60S WITH SOME LOW 70S
THROUGH THE SOUTHEAST. MORNING LOWS DROPPING INTO THE LOWER 30S
FRIDAY HAVE PROMPTED SOME FROST/FREEZE RELATED ADVISORIES FOR
PORTIONS OF THE MIDWEST/GREAT LAKES INTO THE APPALACHIANS.
WIDESPREAD PRECIPITATION AND THE SAGGING FRONTAL BOUNDARY ALONG
THE GULF COAST WILL BRING SOME MUCH COOLER HIGHS IN THE 60S HERE
AS WELL. ONLY FLORIDA WILL REMAIN WARMER SOUTH OF THE BOUNDARY,
WITH 80S AND 90S FORECAST. MEANWHILE, WARMER, ABOVE AVERAGE
TEMPERATURES WILL SPREAD ACROSS THE WESTERN U.S. THROUGH THE END
OF THE WEEK, WITH HIGHS RISING INTO THE 60S AND 70S FOR THE
INTERIOR WEST/WEST COAST, 80S FOR INLAND CALIFORNIA, AND 80S AND
90S INTO THE DESERT SOUTHWEST. THESE WARMER TEMPERATURES WILL
BEGIN TO SPREAD ACROSS THE NORTHERN/CENTRAL ROCKIES AND INTO THE
HIGH PLAINS BY SATURDAY, WITH 60S AND 70S EXPECTED.
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