724  
FXUS01 KWBC 210737  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
337 AM EDT SAT JUN 21 2025  
 
VALID 12Z SAT JUN 21 2025 - 12Z MON JUN 23 2025  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE GREAT LAKES TODAY, THEN UPPER MIDWEST AND NORTHERN/CENTRAL  
PLAINS ON SUNDAY...  
 
...EXCESSIVE RAINFALL CONCERNS EMERGE OVER THE SOUTHERN HIGH  
PLAINS ON SUNDAY...  
 
...MAJOR TO EXTREME HEAT RISK LIKELY TO EXPAND FROM CENTRAL TO  
EASTERN U.S....  
 
...THERE IS A CRITICAL RISK OF FIRE WEATHER OVER PARTS OF THE  
GREAT BASIN/FOUR CORNERS TODAY...  
 
SHORTWAVE ENERGY RIDING OVER TOP OF AN UPPER RIDGE WILL PRODUCE  
SCATTERED TO ISOLATED THUNDERSTORMS ACROSS THE GREAT LAKES,  
INTERIOR NORTHEAST AND UPPER MIDWEST TODAY. THE STORM PREDICTION  
CENTER ISSUED A SLIGHT RISK (LEVEL 2/5) OF SEVERE THUNDERSTORMS  
FOR PORTIONS OF NORTHEASTERN WISCONSIN THROUGH THE UP OF MICHIGAN  
TODAY AND INTO UPSTATE NEW YORK AND NEW ENGLAND LATE TONIGHT. A  
COMPLEX OF STORMS, WHICH ORIGINATED IN NORTH DAKOTA FRIDAY NIGHT,  
WILL MOVE THROUGH THE AFOREMENTIONED AREAS. SOME LOCALIZED FLASH  
FLOODING IS POSSIBLE FROM THESE STORMS. ELSEWHERE, DRYLINE STORMS  
COULD PRODUCE SOME SCATTERED TO ISOLATED FLASH FLOODING OVER PARTS  
OF EASTERN NEW MEXICO AND WESTERN TEXAS ON SUNDAY. A SLIGHT RISK  
(AT LEAST 15%) OF EXCESSIVE RAINFALL LEADING TO FLASH FLOODING IS  
IN EFFECT FOR THOSE AREAS EARLY NEXT WEEK.  
 
TROUGHING IN THE WEST WILL GENERATE WELL BELOW AVERAGE  
TEMPERATURES ACROSS THE REGION THIS WEEKEND. FROST ADVISORIES AND  
FREEZE WARNINGS ARE IN EFFECT FOR PARTS NORTHERN CALIFORNIA AND  
NORTHEASTERN NEVADA RESPECTIVELY FOR TONIGHT. THE LOW TEMPERATURES  
AND SHALLOW PACIFIC MOISTURE AVAILABLE WILL PRODUCE SOME MINOR TO  
MODERATELY IMPACTFUL SNOWFALL OVER THE HIGHER ELEVATIONS OF THE  
NORTHERN ROCKIES THROUGH SUNDAY. THERE IS A CRITICAL RISK OF FIRES  
AS WELL AS RED FLAG WARNINGS DUE TO DRY AND WINDY CONDITIONS IN  
PARTS OF THE GREAT BASIN AND FOUR CORNERS REGION TODAY.  
 
A STRONG UPPER RIDGE IS EMERGING OVER THE EASTERN HALF OF THE  
COUNTRY. WIDESPREAD RECORD MAX AND MIN TEMPERATURES ARE LIKELY TO  
BE TIED/BROKEN FROM THE UPPER/MIDDLE MISSISSIPPI VALLEY TO THE  
NORTHEAST/MID-ATLANTIC OVER THE NEXT SEVERAL DAYS. MAJOR TO  
EXTREME HEAT RISK WILL SPREAD INTO THE MIDWEST AND EAST COAST ON  
SUNDAY, WHERE ANYONE WITHOUT EFFECTIVE COOLING AND/OR ADEQUATE  
HYDRATION WILL BE AFFECTED. LITTLE TO NO OVERNIGHT RELIEF WILL  
ONLY EXACERBATE HEAT IMPACTS.  
 
KEBEDE  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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