671  
FXUS01 KWBC 110756  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
356 AM EDT MON JUN 11 2018  
 
VALID 12Z MON JUN 11 2018 - 12Z WED JUN 13 2018  
 
...THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER PARTS OF  
THE NORTHERN PLAINS AND WESTERN OHIO VALLEY...  
 
...HEAVY RAIN AND FLASH FLOODING POSSIBLE OVER PARTS OF THE UPPER  
MIDWEST, OHIO VALLEY AND THE MID-ATLANTIC REGION...  
 
...RAIN/SNOW POSSIBLE OVER THE HIGHEST ELEVATIONS OF THE CASCADES  
AND NORTHERN ROCKIES...  
 
STRONG TO SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HEAVY RAIN  
WILL MOVE FROM THE UPPER MIDWEST TOWARD THE MID-ATLANTIC OVER THE  
NEXT COUPLE OF DAYS AS A SLOW MOVING FRONTAL SYSTEM TRACKS ACROSS  
THE CENTRAL U.S. THE CONVECTION THAT WILL OCCUR OVER THE CENTRAL  
AND SOUTHERN PLAINS WILL BE MORE CONDUCIVE FOR BECOMING SEVERE.  
THE STORM PREDICTION CENTER HAS SLIGHT RISKS IN EFFECT FOR MONDAY  
AND TUESDAY ACROSS THIS REGION. ABUNDANT MOISTURE STREAMING  
NORTHWARD OF THE SLOW MOVING FRONT WILL SET UP A FAVORABLE  
ENVIRONMENT FOR HEAVY RAIN. AMOUNTS OF 1 TO 3 INCHES OF RAIN IS  
FORECAST ALONG PORTIONS OF THE FRONT OVER THE MIDWEST AND SOUTHERN  
OHIO VALLEY. THE WEATHER PREDICTION CENTER HAS SLIGHT RISKS FOR  
EXCESSIVE RAINFALL IN EFFECT. THESE AREAS WILL HAVE AN INCREASED  
THREAT OF FLOODING.  
 
ACROSS THE SOUTH, MOISTURE FROM THE GULF OF MEXICO AND UPPER-LEVEL  
IMPULSES WILL AID IN PRODUCING SHOWERS AND THUNDERSTORMS OVER  
PARTS OF THE WESTERN/CENTRAL GULF COAST AND FLORIDA THROUGH  
TUESDAY. ONSHORE FLOW STREAMING INLAND OVER THE PACIFIC NORTHWEST  
INTO PARTS OF THE NORTHERN ROCKIES/NORTHERN HIGH PLAINS WILL SHUT  
OFF BY THIS EVENING. BUT UNTIL THEN, RAIN WILL DEVELOP OVER THE  
NORTHWEST WITH RAIN/SNOW OVER THE HIGHEST ELEVATIONS OF THE  
CASCADES AND THE NORTHERN INTERMOUNTAIN REGION.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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