217  
FXUS01 KWBC 022033  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
432 PM EDT WED MAY 02 2018  
 
VALID 00Z THU MAY 03 2018 - 00Z SAT MAY 05 2018  
 
...SEVERE THUNDERSTORMS LIKELY AND FLASH FLOODING POSSIBLE FOR  
PLAINS/MIDWEST THROUGH THURSDAY...  
 
...CRITICAL FIRE WEATHER CONDITIONS CONTINUE THROUGH THURSDAY FOR  
THE SOUTHERN HIGH PLAINS...  
   
..HEAVY SNOW CONTINUES FOR THE CENTRAL ROCKIES THROUGH THURSDAY
 
 
   
..RECORD WARMTH EXPECTED FOR THE NORTHERN MID-ATLANTIC
 
 
A SLOW-MOVING FRONT LOCATED ACROSS THE MIDWEST AND INTO THE  
CENTRAL PLAINS, AS WELL AS A DRYLINE FARTHER SOUTH ACROSS THE  
SOUTHERN PLAINS, WILL HELP LEAD TO MORE ROUNDS OF RAIN AND  
THUNDERSTORMS FOR THOSE AREAS. THE STORM PREDICTION CENTER HAS A  
MODERATE RISK OF SEVERE THUNDERSTORMS THROUGH WEDNESDAY NIGHT IN  
PORTIONS OF OKLAHOMA, KANSAS, AND MISSOURI, WITH SOME RISK OF  
SEVERE WEATHER THROUGHOUT THE SOUTHERN AND CENTRAL PLAINS AND THE  
MIDDLE MISSISSIPPI VALLEY. THE THREAT FOR SEVERE WEATHER CONTINUES  
ON THURSDAY, SO CHECK THE STORM PREDICTION CENTER'S WEBSITE FOR  
MORE DETAILS. HEAVY RAIN AND FLASH FLOODING ARE ALSO POSSIBLE AS  
SOME STORMS WILL BE SLOW MOVING. A SLIGHT RISK OF EXCESSIVE  
RAINFALL IS IN EFFECT THROUGH WEDNESDAY NIGHT FOR PORTIONS OF THE  
CENTRAL PLAINS AND MIDDLE MISSISSIPPI VALLEY TODAY, AND EXPECTED  
FOR PORTIONS OF THE MIDWEST TOMORROW.  
 
BEHIND THE DRYLINE, CRITICAL FIRE WEATHER CONDITIONS ARE FORECAST  
TO CONTINUE THROUGH THURSDAY, AS GUSTY WINDS COMBINE WITH LOW  
RELATIVE HUMIDITY ACROSS THE SOUTHERN HIGH PLAINS. THE COLD FRONT  
COMING THROUGH ON THURSDAY WILL HELP RELATIVE HUMIDITY RISE AND  
LESSEN THE FIRE WEATHER THREAT BY FRIDAY. RED FLAG WARNINGS ARE  
ALSO IN EFFECT THROUGH WEDNESDAY EVENING IN PORTIONS OF THE  
NORTHERN MID-ATLANTIC.  
 
AN UPPER-LEVEL LOW WILL CONTINUE MOVING EASTWARD THROUGH THE  
SOUTHWEST, LEADING TO SCATTERED SHOWERS AND THUNDERSTORMS IN THE  
VALLEYS, AS WELL AS MOUNTAIN SNOW IN MUCH OF THE WEST INTO  
THURSDAY. RAINFALL AMOUNTS ARE GENERALLY EXPECTED TO BE LESS THAN  
AN INCH. HOWEVER, LATE SEASON HEAVY SNOW IS FORECAST TO CONTINUE  
IN HIGHER ELEVATIONS OF THE CENTRAL ROCKIES, WITH ADDITIONAL SNOW  
AMOUNTS UP TO 8 INCHES.  
 
TEMPERATURES ARE EXPECTED TO BE MUCH ABOVE AVERAGE THROUGH THE END  
OF THE WORKWEEK IN THE NORTHERN AND EASTERN U.S. HIGHS IN THE  
UPPER 80S AND LOWER 90S IN THE NORTHERN MID-ATLANTIC COULD BREAK  
RECORDS ON THURSDAY AND FRIDAY. OVERNIGHT TEMPERATURES WILL ALSO  
BE WARM; MANY RECORD WARM MINIMUM TEMPERATURES ARE ALSO EXPECTED  
TO BE BROKEN ACROSS THE OHIO VALLEY, MID-ATLANTIC, AND NORTHEAST.  
 
TATE  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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