229  
FXUS01 KWBC 121952  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
352 PM EDT WED SEP 12 2018  
 
VALID 00Z THU SEP 13 2018 - 00Z SAT SEP 15 2018  
 
...MAJOR HURRICANE FLORENCE EXPECTED TO BEGIN BEARING DOWN ON THE  
CAROLINAS AND SURROUNDING AREAS...  
 
...CATASTROPHIC FLOODING AND DANGEROUS STORM SURGE EXPECTED OVER  
PARTS OF THE CAROLINA COAST...  
 
...HEAVY RAIN AND POTENTIAL FLASH FLOODING POSSIBLE ALONG THE  
TEXAS COAST...  
   
..FIRE WEATHER CONCERNS CONTINUE ACROSS THE WEST
 
 
MAJOR HURRICANE FLORENCE WILL BEGIN IMPACTING THE CAROLINA COAST  
BY THURSDAY MORNING. HURRICANE WARNINGS ARE NOW IN EFFECT AS  
HURRICANE FORCE WINDS ARE EXPECTED TO BEGIN HITTING THE COAST BY  
LATE THURSDAY. 20 TO 30 INCHES OF RAIN, WITH ISOLATED AMOUNTS OF  
UP TO 40 INCHES WILL BE POSSIBLE ACROSS THE COASTAL CAROLINAS  
THROUGH THE END OF THE WEEK. THIS WILL RESULT IN CATASTROPHIC  
FLASH FLOODING AND SIGNIFICANT RIVER FLOODING. STORM SURGE COULD  
ALSO BE IN EXCESS OF 9 FEET IN MULTIPLE LOCATIONS ALONG THE  
COASTLINE, AND WILL BE ACCOMPANIED BY LARGE DESTRUCTIVE WAVES.  
PLEASE SEE THE LATEST NATIONAL HURRICANE CENTER ADVISORIES FOR  
UPDATES ON THE FORECAST TRACK, IMPACTS, AND DETAILS OF ANY WATCHES  
AND WARNINGS ASSOCIATED WITH HURRICANE FLORENCE.  
 
MEANWHILE, A QUASI-STATIONARY FRONT EXTENDING FROM THE  
MID-ATLANTIC SOUTHWESTWARD TO THE WESTERN GULF COAST WILL SLOWLY  
DISSIPATE FROM THE WESTERN GULF COAST TO THE CENTRAL APPALACHIANS  
BY THURSDAY MORNING. CONVERGENCE ALONG THIS BOUNDARY IN COASTAL  
TEXAS WILL RESULT IN CONTINUED SHOWERS AND THUNDERSTORMS, WHICH  
MAY PERSIST WELL AFTER THE BOUNDARY DISSIPATES. THE WEATHER  
PREDICTION CENTER HAS ISSUED A SLIGHT RISK OF EXCESSIVE RAINFALL  
ALONG THE COAST IN TEXAS FOR TONIGHT AND CONTINUING INTO THURSDAY  
AND FRIDAY AS WELL.  
 
ACROSS THE WEST, A DEEP UPPER LEVEL TROUGH AND A SURFACE FRONTAL  
BOUNDARY IS LEADING TO GUSTY CONDITIONS ACROSS MUCH OF THE REGION.  
THE COMBINATION OF WINDS AND ONGOING DRY CONDITIONS WILL CONTINUE  
THE THREAT OF WILDFIRES THROUGH TODAY. RED FLAG WARNINGS ARE  
CURRENTLY IN EFFECT FOR THE CENTRAL GREAT BASIN, CENTRAL ROCKIES,  
AND THE WESTERN PLAINS.  
 
WIX  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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