462  
FXUS01 KWBC 100804  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
404 AM EDT TUE JUL 10 2018  
 
VALID 12Z TUE JUL 10 2018 - 12Z THU JUL 12 2018  
 
...TROPICAL STORM CHRIS WILL CONTINUE TO STRENGTHEN AND LINGER OFF  
THE CAROLINAS, EVENTUALLY TRACKING AWAY FROM THE COAST BY  
WEDNESDAY...  
 
...SEVERE THUNDERSTORMS EXPECTED ACROSS THE NORTHERN PLAINS AND  
UPPER MISSISSIPPI VALLEY, WITH FLASH FLOODING POSSIBLE ON  
WEDNESDAY IN PARTS OF THE UPPER MISSISSIPPI VALLEY...  
 
...HEAVY RAINFALL AND FLASH FLOODING POSSIBLE ACROSS PORTIONS OF  
THE SOUTHWEST AND SOUTHERN ROCKIES...  
 
TROPICAL STORM CHRIS IS CURRENTLY STALLED OFFSHORE OF THE  
CAROLINAS AND IS ANTICIPATED TO STRENGTHEN TO A HURRICANE THIS  
AFTERNOON AND THEN TRACK TO THE NORTHEAST. WHILE MUCH OF THE  
HEAVIEST RAINFALL SHOULD STAY WELL OFFSHORE, OUTER RAIN BANDS FROM  
CHRIS MAY CLIP THE OUTER BANKS OF NORTH CAROLINA. WPC HAS A  
MARGINAL RISK FOR EXCESSIVE RAINFALL IN EFFECT FOR SOUTHEAST  
VIRGINIA AND NORTHEAST NORTH CAROLINA. STRONG WINDS ASSOCIATED  
WITH CHRIS WILL CAUSE DANGEROUS SURF AND RIP-CURRENTS UP THE  
MID-ATLANTIC COAST. FOR SPECIFIC INFORMATION IN REGARDS TO THE  
TROPICAL STORM CHRIS PLEASE REFER TO THOSE PRODUCTS ISSUED BY THE  
LOCAL FORECAST OFFICES, AS WELL, AS THE NATIONAL HURRICANE CENTER.  
 
A LOW PRESSURE SYSTEM WILL LIFT UP OF THE ROCKIES AND MOVE ACROSS  
THE NORTHERN HIGH PLAINS AND INTO THE UPPER MISSISSIPPI VALLEY AND  
GREAT LAKES REGIONS OVER THE NEXT FEW DAYS. THIS FRONT WILL BE A  
FOCUS FOR STRONG CONVECTION TO DEVELOP FROM MONTANA TO WISCONSIN.  
SEVERE THUNDERSTORMS ALONG WITH EMBEDDED HEAVY RAINFALL WILL BE  
POSSIBLE. THE STORM PREDICTION CENTER HAS HIGHLIGHTED PORTIONS  
MONTANA AND NORTH DAKOTA WITHIN A SLIGHT RISK FOR SEVERE WEATHER  
TODAY AND INTO PARTS OF MINNESOTA ON WEDNESDAY. WPC ALSO HAS A  
SLIGHT RISK FOR EXCESSIVE RAINFALL/FLASH FLOODING ALONG THE  
BOUNDARY IN MINNESOTA ON WEDNESDAY.  
 
SHOWERS AND THUNDERSTORMS WILL BE ON THE INCREASE ACROSS PORTIONS  
OF THE SOUTHWEST AND SOUTHERN ROCKIES AS MONSOONAL MOISTURE  
ADVECTS NORTHWARD. HEAVY RAINFALL AND FLASH FLOODING WILL BE  
POSSIBILITY, ESPECIALLY FOR AREAS OF HIGHER TERRAIN OR FLOOD PRONE  
REGIONS. WPC HAS A MARGINAL TO SLIGHT RISK FOR MUCH OF THIS REGION  
ON ITS EXCESSIVE RAINFALL OUTLOOKS. SCATTERED SHOWERS AND  
THUNDERSTORMS WILL PERSIST OVER THE NEXT FEW DAYS OVER THE GULF  
STATES AND THE SOUTHEAST AS GULF MOISTURE OVERRIDES A DECAYING  
FRONTAL BOUNDARY.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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