917  
FXUS01 KWBC 292000  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
359 PM EDT WED AUG 29 2018  
 
VALID 00Z THU AUG 30 2018 - 00Z SAT SEP 01 2018  
   
..SEVERE WEATHER POSSIBLE ACROSS THE NEW ENGLAND INTERIOR
 
 
...HEAVY RAIN AND SEVERE WEATHER POSSIBLE FOR THE MISSISSIPPI  
VALLEY...  
   
..HEAT WAVE TO CONTINUE ACROSS THE MID-ATLANTIC AND NORTHEAST
 
 
...FIRE WEATHER CONCERNS BEGIN TO RESURFACE ACROSS THE WESTERN  
U.S....  
 
A STRONG COLD FRONT IS PRESSING SOUTH AND EAST, STRETCHING FROM  
NEW ENGLAND TO THE SOUTHERN PLAINS. SHOWERS AND THUNDERSTORMS HAVE  
FIRED ALONG THIS BOUNDARY AND WILL CONTINUE MOVING EASTWARD WITH  
THE FRONT THROUGH TONIGHT. SOME OF THESE THUNDERSTORMS COULD  
PRODUCE LOCALLY HEAVY RAINFALL--THUS A MARGINAL RISK OF FLASH  
FLOODING IS POSSIBLE FROM THE INTERIOR OF NEW ENGLAND TO PARTS OF  
THE SOUTHERN AND CENTRAL PLAINS. ADDITIONALLY, A SLIGHT RISK OF  
SEVERE THUNDERSTORMS HAS BEEN HIGHLIGHTED BY THE STORM PREDICTION  
CENTER FROM NORTHERN NEW YORK TO NORTHERN NEW ENGLAND.  
 
AS THIS BOUNDARY SLOWS AND STALLS ACROSS THE MID-ATLANTIC AND INTO  
THE MIDDLE MISSISSIPPI VALLEY ON THURSDAY, MORE ROUNDS OF SHOWERS  
AND THUNDERSTORMS ARE EXPECTED. AS THE WARM FRONT LIFTS NORTHWARD  
ACROSS THE MIDDLE AND UPPER MISSISSIPPI VALLEY, THUNDERSTORMS  
CAPABLE OF PRODUCING HEAVY RAINFALL CAN BE EXPECTED ON THURSDAY  
NIGHT AND INTO FRIDAY MORNING. THERE IS ALSO A MARGINAL RISK OF  
SEVERE THUNDERSTORMS FROM SOUTHWEST MINNESOTA/NORTHWEST IOWA AND  
THE EXTREME WESTERN PORTIONS OF SOUTH DAKOTA AND NORTHEAST  
NEBRASKA ON THURSDAY. BY FRIDAY, THE CLUSTER OF STORMS CONTINUE  
IMPACTING THE MIDDLE MISSISSIPPI VALLEY. AS THE SURFACE LOW LIFTS  
NORTHWARD INTO THE UPPER MIDWEST, ANOTHER AREA OF HEAVY RAINFALL  
CAN BE EXPECTED NEAR ITS VICINITY. THERE IS A SLIGHT RISK OF  
SEVERE THUNDERSTORMS FOR THE SAME REGION AS THURSDAY.  
 
WITH THE UPPER RIDGE BEING THE DOMINANT FEATURE ACROSS THE  
SOUTHEAST, TEMPERATURES ACROSS THE NORTHEAST AND MID-ATLANTIC WILL  
STILL BE WELL ABOVE NORMAL THROUGH THURSDAY. BY FRIDAY, ONCE THE  
COLD FRONT PUSHES ACROSS THESE REGIONS AND STALLS TO THE SOUTH,  
TEMPERATURES WILL DROP SIGNIFICANTLY. MEANWHILE, PRECIPITATION  
WILL LINGER ACROSS THE AREA INTO THE WEEKEND. THIS WILL BRING HIGH  
TEMPERATURES DOWN--AND END THE HEAT ADVISORIES.  
 
ELSEWHERE ACROSS THE U.S., FIRE WEATHER CONCERNS WILL BE POSSIBLE  
ACROSS THE PACIFIC NORTHWEST, INTERMOUNTAIN WEST AND GREAT BASIN  
THROUGH FRIDAY. RED FLAG WARNINGS AND FIRE WEATHER WATCHES ARE IN  
PLACE ACROSS MUCH OF WYOMING FOR TODAY AND THURSDAY DUE WARM  
TEMPERATURES, LOW RELATIVE HUMIDITIES, AND GUSTY WINDS. SOUTHWEST  
OREGON IS ALSO STILL UNDER AN AIR QUALITY ALERT DUE TO SMOKE FROM  
A NEARBY WILDFIRE.  
 
REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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