318  
FXUS01 KWBC 280800  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
359 AM EDT SAT OCT 28 2017  
 
VALID 12Z SAT OCT 28 2017 - 12Z MON OCT 30 2017  
 
...STRONG COLD FRONT TO DELIVER HEAVY RAINFALL ACROSS THE EASTERN  
U.S...  
   
..SNOW POSSIBLE FOR PORTIONS OF THE NORTHERN ROCKIES
 
 
WIDESPREAD RAIN IS EXPECTED ALONG A COLD FRONT AS IT PASSES  
THROUGH THE GULF STATES/OHIO AND TENNESSEE VALLEYS/ GREAT LAKES  
AND INTO THE MID-ATLANTIC AND NORTHEAST OVER THE NEXT FEW DAYS. A  
FEW AREAS MAY HAVE MIXED PRECIPITATION, OR SNOW, ON THE BACKSIDE  
OF THE FRONT WHERE COLD AIR WILL BE STREAMING IN. AS THE COLD  
FRONT APPROACHES THE MID-ATLANTIC, HEAVY RAINFALL WILL ENTER THE  
APPALACHIANS AND LOWER GREAT LAKES THIS AFTERNOON. A MARGINAL RISK  
FOR EXCESSIVE RAINFALL IS IN EFFECT FOR MUCH OF THE APPALACHIANS  
TODAY, AS WELL AS, A SLIGHT RISK FOR SOUTH FLORIDA. BY SUNDAY,  
MOST OF THE HEAVY RAINFALL WILL OCCUR IN THE NORTHEAST AND NEW  
ENGLAND-- WITH A SLIGHT CHANCE OF FLASH FLOODING FROM EASTERN  
PENNSYLVANIA/NEW JERSEY TO WESTERN MAINE AND A MODERATE RISK FOR  
UPSTATE NEW YORK, VERMONT, NORTHERN NEW HAMPSHIRE AND NORTHWEST  
MAINE. RAIN IS EXPECTED TO LINGER ACROSS THE REGION INTO MONDAY  
MORNING. STRONG, GUSTY WINDS WILL ACCOMPANY THIS SYSTEM THROUGHOUT  
THE MID-ATLANTIC AND NORTHEAST. MOST OF THE SNOWFALL ACTIVITY IS  
EXPECTED IN THE UPPER GREAT LAKES ON SATURDAY; BY SUNDAY, THERE  
COULD BE VERY LIGHT SNOW SHOWERS IN THE HIGHER ELEVATIONS OF THE  
WEST VIRGINIA MOUNTAINS. SNOW WILL BE POSSIBLE ACROSS PORTIONS OF  
THE NORTHERN ROCKIES THIS WEEKEND AS ANOTHER COLD FRONT PUSHES  
SOUTHWARD FROM CANADA.  
 
WITH AN UPPER-LEVEL RIDGE ANCHOR OVER THE WEST COAST, MOST  
LOCATIONS WEST OF THE DIVIDE WILL REMAIN DRY AND WARMER, WITH  
AFTERNOON HIGH TEMPERATURES AVERAGING 10 TO 15 DEGREES ABOVE  
SEASONAL NORMAL. THE CENTRAL AND EASTERN STATES WILL HAVE COOL  
AND SEASONABLE TEMPERATURES OVER THE NEXT FEW DAYS.  
 
CAMPBELL  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab HPC Page Main Text Page