597  
FXUS01 KWBC 120801  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
400 AM EDT THU JUL 12 2018  
 
VALID 12Z THU JUL 12 2018 - 12Z SAT JUL 14 2018  
 
...HURRICANE CHRIS WILL CONTINUE TO TRACK NORTHEAST OVER THE  
ATLANTIC OCEAN...  
 
...SEVERE THUNDERSTORMS EXPECTED ACROSS PORTIONS OF THE NORTHERN  
PLAINS AND UPPER MISSISSIPPI VALLEY THROUGH THURSDAY...  
 
...HEAVY RAINFALL AND FLASH FLOODING POSSIBLE ACROSS PORTIONS OF  
THE SOUTHWEST AND SOUTHERN ROCKIES...  
 
HURRICANE CHRIS IS CURRENTLY SOUTH OF NOVA SCOTIA AND IS EXPECTED  
TO CLIP COASTAL AREAS OF NEWFOUNDLAND AND LABRADOR TONIGHT AS A  
TROPICAL STORM. AS IT CONTINUES TO SHIFT AWAY FROM THE COAST,  
IMPACTS WILL LESSEN ALONG THE COASTLINE. FOR THE LATEST FORECAST  
TRACK AND IMPACTS, VISIT THE NATIONAL HURRICANE CENTER  
(WWW.HURRICANES.GOV) AND THE LOCAL FORECAST OFFICE FOR INDIVIDUAL  
WATCHES/WARNINGS/ADVISORIES.  
 
SCATTERED TO WIDESPREAD SHOWERS WILL BE PRESENT ACROSS THE  
MID-ATLANTIC AND PORTIONS OF THE SOUTHEAST AND GULF STATES INTO  
THE WEEKEND. A FRONTAL BOUNDARY WILL SLOWLY DRIFT SOUTHWARD AND  
ACT AS A FOCUS FOR CONVECTION. ABUNDANT MOISTURE FEEDING INTO THIS  
REGION ALONG WILL SLOW SELL MOTION, HEAVY RAINFALL MAY BE POSSIBLE  
- ESPECIALLY FOR THE CAROLINAS AND GEORGIA. WPC HAS IDENTIFIED  
THIS AREA AS HAVING A MARGINAL RISK FOR EXCESSIVE RAINFALL.  
 
WIDESPREAD CONVECTION WILL CONTINUE ACROSS MUCH OF THE DESERT  
SOUTHWEST AND SOUTHERN ROCKIES AS MONSOONAL MOISTURE ADVECTS  
NORTHWARD. HEAVY RAINFALL ALONG THE TERRAIN COULD LEAD TO FLASH  
FLOODING, WITH A MAGNIFIED THREAT IN FLOOD PRONE AREAS. WPC HAS A  
MAJORITY OF THIS REGION IN A MARGINAL TO SLIGHT RISK FOR EXCESSIVE  
RAINFALL AND FLASH FLOODING THROUGH SATURDAY.  
 
A STRONG COLD FRONT WILL SLOWLY TRACK EAST ACROSS THE NORTHERN  
U.S. RESULTING IN THE RISK OF SEVERE WEATHER ACROSS PORTIONS OF  
THE NORTHERN PLAINS AND UPPER MISSISSIPPI VALLEY. THIS WILL COUPLE  
WITH A VERY MOIST ATMOSPHERE AND MAY ALSO RESULT IN EXCESSIVE  
RAINFALL AND FLASH FLOODING CONCERNS FOR PORTIONS OF THIS REGION  
THROUGH TONIGHT. EXCESSIVE RAIN CONCERNS MAY ALSO CONTINUE INTO  
FRIDAY FOR PORTIONS OF THE NORTHERN PLAINS AND UPPER MISSISSIPPI  
VALLEY.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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