331  
FXUS01 KWBC 311911  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
311 PM EDT SAT MAY 31 2025  
 
VALID 00Z SUN JUN 01 2025 - 00Z TUE JUN 03 2025  
 
...MODERATE TO HEAVY RAINFALL AND LOCALIZED FLASH FLOODING  
CONTINUES INTO THIS EVENING FOR INTERIOR NEW ENGLAND...  
 
...SHOWERS AND THUNDERSTORMS EXPECTED TO REACH THE DESERT  
SOUTHWEST SUNDAY NIGHT AND THEN THE FOUR CORNERS MONDAY MORNING  
WITH A RISK FOR FLASH FLOODING...  
 
...A ROUND OF RAIN EXPECTED FOR THE NORTHERN ROCKIES/HIGH PLAINS  
SUNDAY NIGHT INTO MONDAY MORNING WITH GUSTY WINDS...  
 
...STORM CHANCES SHIFT FROM THE SOUTHERN PLAINS SUNDAY TO THE  
CENTRAL/NORTHERN PLAINS MONDAY...  
 
AN ANOMALOUSLY DEEP LOW PRESSURE SYSTEM FOR LATE MAY CONTINUES TO  
CHURN NORTHWARD THROUGH NEW ENGLAND THIS AFTERNOON (SATURDAY)  
ACCOMPANIED BY WIDESPREAD SHOWERS AND THUNDERSTORMS. PLENTIFUL  
MOISTURE LEADING TO LOCALLY HEAVY DOWNPOURS (RAIN RATES OF 1"/HR)  
AND REPEATED ROUNDS OF STORMS FOCUSED THROUGH PORTIONS OF VERMONT  
AND NEW HAMPSHIRE MAY LEAD TO SOME SCATTERED INSTANCES OF FLASH  
FLOODING, WITH A SLIGHT RISK OF EXCESSIVE RAINFALL (LEVEL 2/4) IN  
EFFECT. STORMS WILL LIFT NORTHEASTWARD FROM CENTRAL NEW ENGLAND  
INTO MAINE THROUGH THIS EVENING AND SHOULD COME TO AN END FOR ALL  
LOCATIONS BY SUNDAY MORNING. FORECAST HIGH TEMPERATURES SUNDAY  
MORE BROADLY ACROSS THE NORTHEAST AND INTO THE MID-ATLANTIC, LOWER  
GREAT LAKES, AND OHIO VALLEY WILL REMAIN BELOW AVERAGE SUNDAY  
UNDER AN ASSOCIATED UPPER-LOW AND FOLLOWING A COLD FRONT PASSAGE,  
RANGING FROM THE 50S AND 60S IN THE INTERIOR NORTHEAST AND 60S AND  
70S ELSEWHERE. HIGHS WILL CLIMB CLOSER TO AVERAGE AND BE IN THE  
70S FOR MOST BY MONDAY AS THE UPPER-LOW DEPARTS THE REGION.  
 
THE UPPER-RIDGE BRINGING VERY HOT, SUMMER-LIKE AND RECORD HEAT TO  
THE WEST SATURDAY WILL BEGIN TO SHIFT EASTWARD ON SUNDAY, WITH  
WELL ABOVE AVERAGE TEMPERATURES INTO THE 80S AND 90S STRETCHING  
FROM THE INTERIOR WEST INTO THE NORTHERN PLAINS. THE HEAT WILL  
SHIFT INTO THE UPPER MIDWEST ON MONDAY WHILE AN UPPER  
TROUGH/ACCOMPANYING SURFACE COLD FRONT MOVING SOUTH THROUGH THE  
INTERIOR WEST BRINGS MUCH COOLER TEMPERATURES TO THE NORTHERN  
ROCKIES/HIGH PLAINS (HIGHS IN THE 60S) AND MORE SEASONABLE  
TEMPERATURES ELSEWHERE IN THE GREAT BASIN AND ALONG THE WEST COAST  
(70S AND 80S). SHOWERS AND THUNDERSTORMS, ALONG WITH SOME GUSTY  
WINDS, WILL ACCOMPANY THE COLD FRONT PASSING THROUGH THE NORTHERN  
ROCKIES/HIGH PLAINS SUNDAY NIGHT INTO MONDAY. MEANWHILE, FURTHER  
SOUTH, MOISTURE ASSOCIATED WITH THE REMNANTS OF ALVIN WILL FLOW  
NORTHWARD INTO THE SOUTHWEST SUNDAY BRINGING SHOWERS AND  
THUNDERSTORMS CAPABLE OF LOCALLY HEAVY RAINFALL. SOME SCATTERED  
INSTANCES OF FLASH FLOODING WILL BE POSSIBLE, ESPECIALLY ACROSS  
SOUTHEASTERN ARIZONA WHERE A SLIGHT RISK OF EXCESSIVE RAINFALL IS  
IN PLACE. THE STORMS WILL SHIFT NORTHWARD INTO THE FOUR CORNERS  
REGION MONDAY WITH MODERATE TO LOCALLY HEAVY RAINFALL AND  
ADDITIONAL ISOLATED INSTANCES OF FLASH FLOODING POSSIBLE. BELOW  
AVERAGE HIGHS ARE EXPECTED, WITH 80S TO LOW 90S IN THE DESERT  
SOUTHWEST SUNDAY AND 60S ACROSS THE FOUR CORNERS REGION BY MONDAY.  
 
AN UPPER-LEVEL SHORTWAVE AND ACCOMPANYING SURFACE COLD FRONT  
MOVING SOUTHWARD OVER THE CENTRAL/SOUTHERN PLAINS WILL TRIGGER A  
ROUND OF STORMS THIS EVENING. SOME STORMS MAY BE SEVERE ACROSS  
PORTIONS OF SOUTHERN KANSAS AND CENTRAL OKLAHOMA, WITH A SLIGHT  
RISK FROM THE STORM PREDICTION CENTER (LEVEL 2/5) FOR THE THREAT  
OF LARGE HAIL AND DAMAGING WINDS. THE FRONT WILL CONTINUE  
SOUTHWARD INTO CENTRAL/EASTERN TEXAS SUNDAY, WITH ANOTHER SLIGHT  
RISK OF SEVERE WEATHER IN EFFECT FOR THE THREAT OF VERY LARGE HAIL  
AND SOME DAMAGING WINDS. THEN, ON MONDAY, ANOMALOUSLY HIGH  
MOISTURE WILL RETURN NORTHWARD AHEAD OF THE APPROACHING  
UPPER-TROUGH/COLD FRONT PASSING THROUGH THE NORTHERN ROCKIES AND  
INTO THE CENTRAL/NORTHERN PLAINS AND UPPER MIDWEST. THUNDERSTORM  
DEVELOPMENT IS EXPECTED TO FOCUS ALONG THE COLD FRONT, WITH SLIGHT  
RISKS IN EFFECT FOR BOTH SEVERE WEATHER AND EXCESSIVE  
RAINFALL/FLASH FLOODING, GENERALLY FROM EASTERN SOUTH DAKOTA  
SOUTHWEST THROUGH CENTRAL/WESTERN NEBRASKA AND INTO SOUTHEASTERN  
WYOMING/NORTHEASTERN COLORADO. FORECAST HIGHS ACROSS THE  
CENTRAL/SOUTHERN PLAINS AND INTO THE MISSISSIPPI VALLEY WILL BE  
AROUND TO ABOVE AVERAGE THE NEXT COUPLE OF DAYS, WITH 80S AND 90S  
FORECAST.  
 
ELSEWHERE, DAILY SHOWER AND THUNDERSTORM CHANCES CONTINUE FOR  
FLORIDA. AN UPPER-LEVEL SHORTWAVE PASSING OVER THE SOUTHEAST WILL  
LEAD TO SOME SCATTERED STORM CHANCES SUNDAY. FORECAST HIGHS SUNDAY  
AND MONDAY ARE GENERALLY AROUND AVERAGE, WITH MOSTLY 80S EXPECTED.  
 
PUTNAM  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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