737  
FXUS01 KWBC 260831  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
331 AM EST MON NOV 26 2018  
 
VALID 12Z MON NOV 26 2018 - 12Z WED NOV 28 2018  
 
...SIGNIFICANT WINTER STORM THAT IMPACTED THE MISSISSIPPI VALLEY  
TO THE UPPER GREAT LAKES WILL COME TO AN END TODAY...  
 
...HEAVY RAINFALL TO IMPACT A SMALL PORTION OF THE NORTHERN  
MID-ATLANTIC...  
 
...HEAVY SNOWFALL IMPACTS PARTS OF NEW ENGLAND ON THIS EVENING  
THROUGH TUESDAY EVENING...  
 
...HEAVY PRECIPITATION RETURNS TO THE PACIFIC NORTHWEST BY  
MONDAY...  
 
THE WINTER STORM THAT HAS DROPPED OVER A FOOT OF SNOW ACROSS THE  
MISSISSIPPI VALLEY NORTHWARD INTO THE UPPER GREAT LAKES WILL BEGIN  
WINDING DOWN LATER THIS MORNING. AS THE UPPER LEVEL LOW AND  
SURFACE LOW SLIDE EASTWARD, SNOW AND RAIN WILL TAPER OFF WHILE  
INCREASING ACROSS THE LOWER GREAT LAKES AND OHIO VALLEY. HOWEVER,  
HEAVY SNOW WILL STILL CONTINUE THROUGH THE EARLY HOURS OF MONDAY  
MORNING--WITH BLIZZARD WARNINGS STILL IN EFFECT THROUGH 6AM LOCAL  
TIME FROM NORTHEAST MISSOURI NORTHWARD INTO SOUTHEAST  
WISCONSIN/NORTHEAST ILLINOIS, INCLUDING THE GREATER CHICAGO AREA.  
WINTER STORM WARNINGS AND WINTER WEATHER ADVISORIES ARE ALSO IN  
EFFECT FROM CENTRAL MISSOURI NORTHWARD INTO EASTERN MICHIGAN;  
THESE WARNINGS AND ADVISORIES WILL ALSO COME TO AN END BY THIS  
AFTERNOON. FOR THE LATEST ON THESE WARNINGS, SEE WWW.WEATHER.GOV.  
 
MEANWHILE, THE FRONT ASSOCIATED WITH THE SURFACE LOW BRINGING SNOW  
TO THE GREAT LAKES/MISSISSIPPI VALLEY REGION WILL APPROACH THE  
EASTERN PORTIONS OF THE SOUTHEAST STATES, MID-ATLANTIC AND  
NORTHEAST TODAY. EXPECT RAINFALL ALONG AND AHEAD OF THE FRONT  
ACROSS THE MID-ATLANTIC SOUTHWARD TO CENTRAL FLORIDA. BECAUSE OF  
ALREADY SATURATED SOILS, THERE IS A SLIGHT RISK OF FLASH FLOODING  
FOR A SMALL PORTION OF THE NORTHERN MID-ATLANTIC. THE STORM  
PREDICTION CENTER ALSO HAS PORTIONS OF CENTRAL FLORIDA IN A  
MARGINAL RISK FOR SEVERE THUNDERSTORMS. ADDITIONALLY, THE  
NORTHEAST WILL ALSO GET ANOTHER ROUND OF SHOWERS AND HEAVY  
SNOWFALL PARTICULARLY IN THE NEW ENGLAND INTERIOR. THE HEAVIEST  
PRECIPITATION WILL MOVE INTO THE NORTHEAST/NEW ENGLAND AREA LATE  
TONIGHT AND INTO EARLY TUESDAY MORNING. BY TUESDAY AFTERNOON, AS  
THE SURFACE LOW BEGINS TO PULL AWAY, PRECIPITATION WILL BEGIN TO  
TAPER OFF BUT REMNANT SNOW IN THE NEW ENGLAND INTERIOR WILL LINGER  
THROUGH WEDNESDAY MORNING. SNOW SHOWERS MAY CONTINUE ON THE  
BACKSIDE OF THIS SYSTEM AS WELL WITH GENERALLY LIGHT ACCUMULATIONS  
POSSIBLE DOWNWIND OF THE GREAT LAKES AND INTO THE CENTRAL  
APPALACHIANS.  
 
AFTER A DRY WEEKEND, MODERATE RAINFALL IS MOVING INTO THE PACIFIC  
NORTHWEST EARLY THIS MORNING. RAIN AND HIGHER ELEVATION SNOW WILL  
CONTINUE THROUGH TUESDAY--STRETCHING DOWN INTO NORTHERN CALIFORNIA  
AND THE NORTHERN ROCKIES. SNOW AND ICE ACCUMULATIONS ARE EXPECTED  
IN THE WASHINGTON CASCADES THROUGH MIDDAY TODAY--WHERE THERE ARE  
WINTER WEATHER ADVISORIES IN PLACE. FURTHERMORE, HIGH WINDS WILL  
ALSO IMPACT THE NORTHWEST INTERIOR OF WASHINGTON WITH THE  
STRONGEST WINDS EXPECTED MONDAY NIGHT--WITH HIGH WIND WARNINGS IN  
PLACE FOR THIS REGION. HIGH ELEVATION SNOW CAN ALSO BE EXPECTED  
FOR THE NORTHERN ROCKIES ALONG WITH THE SIERRA NEVADA MOUNTAIN  
RANGE TUESDAY AFTERNOON THROUGH EARLY WEDNESDAY MORNING.  
 
THE EAST COAST WILL CONTINUE TO BE SLIGHTLY ABOVE AVERAGE THIS  
AFTERNOON AS THE CENTRAL U.S. CAN EXPECT HIGH TEMPERATURES 15 TO  
30 DEGREES BELOW AVERAGE. BY TUESDAY, COLDER TEMPERATURES WILL  
MOVE ACROSS THE NORTHEAST SOUTHWARD TO CENTRAL FLORIDA, WITH HIGH  
TEMPERATURES ABOUT 10 TO 15 DEGREES BELOW AVERAGE. THE CENTRAL  
U.S. IS EXPECTED TO CONTINUE WITH HIGH TEMPERATURES 30 DEGREES  
BELOW AVERAGE ON TUESDAY. MEANWHILE, THE WESTERN U.S. WILL BE NEAR  
OR ABOVE AVERAGE THROUGH WEDNESDAY.  
 
REINHART  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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