457  
FXUS01 KWBC 042012  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
411 PM EDT TUE SEP 04 2018  
 
VALID 00Z WED SEP 05 2018 - 00Z FRI SEP 07 2018  
 
...TROPICAL STORM GORDON IS FORECAST TO STRENGTHEN TO A HURRICANE  
THIS EVENING BEFORE MAKING LANDFALL IN MISSISSIPPI, BRINGING  
THREATS OF FLASH FLOODING AND SEVERE THUNDERSTORMS TO THE REGION...  
 
...EXCESSIVE RAINFALL AND FLASH FLOODING LIKELY ACROSS THE CENTRAL  
PLAINS, MIDDLE AND UPPER MISSISSIPPI VALLEYS, AND INTO THE UPPER  
GREAT LAKES...  
 
...SLIGHT RISK FOR SEVERE THUNDERSTORMS OVER PARTS OF THE MIDDLE  
AND UPPER MISSISSIPPI VALLEY...  
   
..EXCESSIVE HEAT WILL BE FELT ACROSS THE NORTHEASTERN U.S.
 
 
TROPICAL STORM GORDON IS FORECAST TO INTENSIFY TO A HURRICANE JUST  
PRIOR TO MAKING LANDFALL NEAR MISSISSIPPI THIS EVENING. THE  
CURRENT TRACK HAS IT THEN PROCEEDING TOWARDS ARKANSAS BEFORE  
HOOKING NORTHEAST THROUGH MISSOURI DURING THE WEEKEND. HEAVY RAIN  
WILL ACCOMPANY GORDON ALONG THIS TRACK, SPREADING AN EXTENSIVE  
SWATH OF 3 TO 6 INCHES WILL LOCALLY HIGHER AMOUNTS ACROSS POTIONS  
OF SOUTHERN MISSISSIPPI, ALABAMA, AND THE WESTERN PANHANDLE OF  
FLORIDA. WIDESPREAD FLASH FLOODING WILL BE A CONCERN HERE THROUGH  
THE END OF THE WEEK. SEVERE THUNDERSTORMS WILL ALSO LIKELY BE  
TRIGGERED OVER PARTS OF THE GULF COAST IN ASSOCIATION WITH THIS  
SYSTEM. THE STORM PREDICTION CENTER HAS A SLIGHT RISK OF SEVERE  
THUNDERSTORMS IN EFFECT THROUGH TONIGHT. CHECK THE LATEST ADVISORY  
FROM THE NATIONAL HURRICANE CENTER FOR THE TRACK AND INTENSITY OF  
GORDON.  
 
MEANWHILE, MULTIPLE ROUNDS OF SHOWERS AND THUNDERSTORMS WILL  
CONTINUE TO IMPACT THE NORTH-CENTRAL PORTIONS OF THE COUNTRY AS A  
STRONG FRONTAL SYSTEM PUSHES THROUGH THE NORTHERN PLAINS AND UPPER  
MISSISSIPPI VALLEY THROUGH WEDNESDAY. THE FOCUS OF HEAVY RAIN  
ACROSS THE MID AND UPPER MISSISSIPPI VALLEY AND INTO THE UPPER  
GREAT LAKES REGION HAS LED TO A HIGH RISK OF EXCESSIVE RAINFALL  
AND FLASH FLOODING FROM THE STORM PREDICTION CENTER THROUGH  
TONIGHT, WITH MODERATE TO SLIGHT RISKS ENCOMPASSING THE  
SURROUNDING AREAS. THIS HIGH RISK AREA IS EXPECTED TO RECEIVE 3 TO  
5 INCHES OF RAINFALL WITH LOCALIZED HIGHER AMOUNTS POSSIBLE.  
NUMEROUS AREAS WITHIN THIS REGION ARE ALREADY EXPERIENCING  
SATURATED SOILS AND ONGOING FLOODING, SO ANY FURTHER RAINFALL WILL  
ONLY FURTHER EXACERBATE THE SITUATION. LARGE AREAS OF THE CENTRAL  
PLAINS, MIDDLE AND UPPER MISSISSIPPI VALLEY AND THE UPPER GREAT  
LAKES ARE CURRENTLY UNDER FLASH FLOOD WATCHES AND WARNINGS. EXPECT  
THESE THREATS TO MOVE SLIGHTLY SOUTHWARD AND EASTWARD WITH THE  
FRONTAL SYSTEM OVER THE COMING DAYS.  
 
TO THE EAST OF THE COLD FRONT, A DEEP SURGE OF WARM AND MOIST AIR  
IS COUPLING WITH A STRONG RIDGE OF HIGH PRESSURE. THIS IS CREATING  
VERY HOT AND HUMID CONDITIONS ACROSS MUCH OF THE SOUTHEAST AND  
EASTERN U.S. HEAT ADVISORIES ARE CURRENTLY IN EFFECT ACROSS  
PORTIONS OF THIS REGION, INCLUDING MUCH OF THE COASTAL  
MID-ATLANTIC AND NORTHEAST.  
 
WIX  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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