956  
FXUS01 KWBC 262000  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
359 PM EDT THU OCT 26 2017  
 
VALID 00Z FRI OCT 27 2017 - 00Z SUN OCT 29 2017  
 
...THE FIRST SIGNIFICANT WINTER STORM OF THE SEASON WILL IMPACT  
THE UPPER MIDWEST ALONG WITH STRONG WINDS...  
 
...TEMPERATURES DROPPING BELOW NORMAL ACROSS THE GREAT PLAINS FOR  
FRIDAY WHILE SPREADING EAST OF THE MISSISSIPPI FOR THE WEEKEND....  
 
...DRY CONDITIONS WITH ABOVE NORMAL TEMPERATURES TO CONTINUE  
ACROSS THE WESTERN U.S....  
 
A STORM SYSTEM CURRENTLY ONGOING ACROSS NORTHERN MINNESOTA WILL  
CONTINUE TO EVOLVE OVER THE NEXT 24-36 HOURS AS IT MOVES INTO  
WISCONSIN. STRONG WINDS FROM THE NORTH WILL CONTINUE TO BRING IN  
MUCH COLDER TEMPERATURES INTO THE NORTHERN PLAINS AND CAUSE A  
CHANGEOVER FROM RAIN TO RAIN/SNOW AND FINALLY SNOW OVERNIGHT  
TONIGHT FOR MINNESOTA. ACCUMULATIONS WILL BE LIGHT TO LOCALLY  
MODERATE THROUGH FRIDAY AND HIGHEST ACROSS THE ARROWHEAD REGION.  
STRONG WINDS COMBINED WITH FALLING SNOW WILL BE A SIGNIFICANT  
HINDRANCE TO TRAVEL GIVEN FORECAST WIND GUSTS UP TO 60 MPH. A  
SECONDARY MAX OF LOCALLY HEAVY SNOW IS EXPECTED FROM THE WESTERN  
U.P. OF MICHIGAN INTO NORTHERN WISCONSIN TO THE NORTHWEST OF THE  
SURFACE LOW THROUGH SATURDAY MORNING AS LAKE ENHANCED SNOW SETS UP  
DOWNWIND OF LAKE SUPERIOR.  
 
SHOWERS AND THUNDERSTORMS WILL BREAK OUT ALONG THE STORM SYSTEM'S  
COLD FRONT STRETCHING FROM THE GREAT LAKES TO THE GULF OF MEXICO.  
A BROAD 1 TO 2 INCHES OF RAIN IS EXPECTED FROM THE OHIO VALLEY  
INTO THE TENNESSEE VALLEY AS THE BOUNDARY MOVES EAST. BEHIND THE  
COLD FRONT, HIGH TEMPERATURES WILL BE 10 TO 20 DEGREES BELOW  
AVERAGE FROM THE SOUTHERN PLAINS TO THE UPPER MISSISSIPPI VALLEY  
FOR FRIDAY, WITH THESE ANOMALIES SHIFTING EAST INTO THE MIDDLE AND  
LOWER MISSISSIPPI VALLEY ON SATURDAY.  
 
ACROSS THE EASTERN U.S., RAIN WILL LARGELY COME TO AN END BY  
FRIDAY MORNING, WITH THE EXCEPTION OF EXTREME NORTHERN MAINE WHERE  
IT MAY LINGER A FEW HOURS LONGER. EAST OF THE COLD FRONT IMPACTING  
THE CENTRAL U.S., TEMPERATURES WILL REBOUND BACK ABOVE AVERAGE BY  
ABOUT 5-15 DEGREES FROM THE UPPER OHIO VALLEY ON FRIDAY INTO THE  
NORTHEAST FOR SATURDAY. ACROSS THE SOUTHEAST, SHOWERS AND  
THUNDERSTORMS MAY BECOME MORE NUMEROUS ACROSS FLORIDA AS A BROAD  
AREA OF LOW PRESSURE OVER THE WESTERN CARIBBEAN BECOMES BETTER  
ORGANIZED AND BEGINS TO DRIFT NORTH EARLY SATURDAY. REFER TO NHC  
OUTLOOKS FOR FURTHER INFORMATION ON THIS SYSTEM.  
 
THE WESTERN U.S. WILL CONTINUE TO EXPERIENCE THE INFLUENCE OF  
UPPER LEVEL RIDGING WHICH WILL HAVE THE EFFECT OF KEEPING THE AREA  
WARM AND DRY, ESPECIALLY CALIFORNIA, OREGON AND NEVADA WHERE  
DEPARTURES FROM AVERAGE HIGH TEMPERATURES WILL RANGE FROM +10 TO  
+20 DEGREES THROUGH THE WEEKEND.  
 
OTTO  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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