216  
FXUS01 KWBC 252000  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
359 PM EDT FRI MAY 25 2018  
 
VALID 00Z SAT MAY 26 2018 - 00Z MON MAY 28 2018  
 
...A SLIGHT RISK OF SEVERE THUNDERSTORMS IS POSSIBLE FROM THE  
GREAT LAKES TO THE SOUTHERN PLAINS...  
 
...SUB TROPICAL STORM ALBERTO TRACKING NORTHWARD THROUGH THE GULF  
OF MEXICO WILL GIVE WAY TO RAINFALL ACROSS THE GULF COAST,  
SOUTHEAST AND MID-ATLANTIC...  
 
...PLAINS AND UPPER MIDWEST WILL HAVE WELL ABOVE NORMAL  
TEMPERATURES...  
 
SHOWERS AND THUNDERSTORMS WILL FIRE ACROSS THE HIGH PLAINS THIS  
WEEKEND WITH THE HELP OF WARM, MOIST AIR TRANSPORTING NORTH  
THROUGH THE CENTRAL CONUS FROM THE GULF OF MEXICO. WITH  
INSTABILITY IN PLACE AND A COLD FRONT SWEEPING ACROSS THE UPPER  
MIDWEST, THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND AHEAD OF  
THIS BOUNDARY. THE STORM PREDICTION CENTER HAS ISSUED SLIGHT RISKS  
FOR SEVERE WEATHER THROUGH SATURDAY MORNING FOR  
WISCONSIN/MINNESOTA/IOWA BORDER WHERE CONVECTION WILL FIRE ALONG  
THE FRONTAL BOUNDARY AND ANOTHER AREA ALONG THE TEXAS/OKLAHOMA  
WERE STRONG CONVECTION WILL FIRE EAST OF A DRY LINE. FOR SPECIFIC  
DETAILS ON THE RISKS OF SEVERE WEATHER, PLEASE REFER TO THE SPC  
WEBSITE.  
 
SHOWERS AND A FEW THUNDERSTORMS WILL PASS FROM THE WEST COAST  
THROUGH THE GREAT BASIN AND INTERMOUNTAIN WEST AS LOW PRESSURE  
SYSTEM ADVANCES SLOWLY THROUGH THE REGION- WITH SNOW POSSIBLE IN  
THE HIGHER PEAKS PORTIONS OF THE INTERMOUNTAIN WEST WILL HAVE A  
MARGINAL RISK FOR STRONG TO SEVERE THUNDERSTORMS TO DEVELOP.  
MEANWHILE, AN IMPRESSIVE COLD FRONT WILL DROP SOUTH INTO NEW  
ENGLAND BY SATURDAY MORNING WITH SHOWERS AND THUNDERSTORMS IS  
EXPECTED TO FIRE OFF AHEAD OF THIS BOUNDARY AND WILL MOVE INTO THE  
INTERIOR OF NEW ENGLAND THESE STORMS DO HAVE A MARGINAL RISK OF  
BECOMING SEVERE. AS THE COLD FRONT PRESSES SOUTHWARD ACROSS  
SOUTHERN NEW ENGLAND AND INTO THE NORTHEAST, SHOWERS AND  
THUNDERSTORMS ARE EXPECTED TO FOLLOW SUIT.  
 
SUB TROPICAL STORM ALBERTO IS EXPECTED TO STRENGTH TO STRENGTH AS  
IT TRACKS FROM THE NORTHWEST CARIBBEAN INTO THE GULF OF MEXICO.  
THIS SYSTEM WILL BRING AN ABUNDANCE OF MOISTURE ACROSS THE GULF  
COAST AND SOUTHEAST WITH AND INCREASED CHANCE FOR THUNDERSTORMS  
FOR THE CENTRAL APPALACHIANS.  
 
TEMPERATURES HEADING INTO THE HOLIDAY WEEKEND WILL VARY IN TERMS  
OF RESPECT TO CLIMATOLOGY DEPENDING ON THE REGION. THE SOUTHEAST  
WILL GENERALLY BE BELOW NORMAL DUE TO THE WET CONDITIONS. THE  
GREAT BASIN AND WEST COAST WILL ALSO BE BELOW NORMAL AS A COLD  
FRONT AND SHOWERS AND THUNDERSTORMS SWEEP ACROSS THE AREA. THE  
NORTHERN AND CENTRAL PLAINS, NORTHERN MISSISSIPPI VALLEY AND UPPER  
MIDWEST WILL BE NEARLY 20 DEGREES ABOVE NORMAL THROUGHOUT THE  
WEEKEND! HIGH TEMPERATURES ARE EXPECTED TO BE IN THE MID-90S.  
WEST TEXAS CAN ALSO EXPECT TEMPERATURES TO REACH THE CENTURY  
MARK--WITH THESE TEMPERATURES BEING 10 TO 15 DEGREES ABOVE NORMAL.  
 
CAMPBELL/REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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