538  
FXUS01 KWBC 261958  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
358 PM EDT FRI OCT 26 2018  
 
VALID 00Z SAT OCT 27 2018 - 00Z MON OCT 29 2018  
 
...DEVELOPING COASTAL LOW TO BRING WIDESPREAD PRECIPITATION TO THE  
EASTERN U.S....  
 
...WINTRY WEATHER EXPECTED FOR INTERIOR PORTIONS OF THE  
NORTHEAST...  
   
..HEAVY RAINFALL POSSIBLE FOR THE PACIFIC NORTHWEST
 
 
LOW PRESSURE MOVING ACROSS THE SOUTHEAST TODAY IS EXPECTED TO  
STRENGTHEN AND LIFT NORTH ALONG THE COAST -- BRINGING WIDESPREAD  
PRECIPITATION AND WINDY CONDITIONS TO THE EASTERN U.S. INTO THE  
WEEKEND. ONGOING PRECIPITATION EXTENDING ACROSS THE OHIO VALLEY  
AND MID-ATLANTIC WILL CONTINUE TO LIFT FURTHER TO THE NORTHEAST  
THROUGH THE OVERNIGHT HOURS, REACHING THE NORTHEASTERN U.S. BY  
SATURDAY MORNING. HEAVY RAINS AND STRONG WINDS CAN BE EXPECTED  
FOR PORTIONS OF THE NORTHEAST, PARTICULARLY FOR AREAS ALONG THE  
COAST. A FLASH FLOOD WATCH IS CURRENTLY IN EFFECT FOR PARTS OF  
THE COAST FROM NORTHERN NEW JERSEY TO SOUTHEASTERN MASSACHUSETTS.  
A STORM WARNING FOR STRONG WINDS IS ALSO IN EFFECT FOR MANY OF THE  
ADJACENT COASTAL WATERS, INCLUDING EASTERN LONG ISLAND SOUND.  
RAIN IS EXPECTED TO BE THE PREDOMINANT PRECIPITATION TYPE WITH  
THIS STORM, BUT MIXED PRECIPITATION ACROSS UPSTATE NEW YORK TO  
NORTHERN NEW ENGLAND WITH ACCUMULATING SNOW AND SIGNIFICANT ICE  
POSSIBLE, ESPECIALLY ACROSS THE HIGHER TERRAIN. WINTER WEATHER  
ADVISORIES ARE NOW IN EFFECT FOR THE CATSKILL AND ADIRONDACK  
REGIONS OF UPSTATE NEW YORK, AS WELL AS FOR PORTIONS OF NORTHERN  
NEW ENGLAND. RAIN MAY ALSO CHANGE OVER TO SNOW OR A RAIN/SNOW MIX  
FARTHER SOUTH INTO PORTIONS OF THE CENTRAL APPALACHIANS AS COLD  
AIR DEEPENS ON THE BACKSIDE OF THE STORM. IN ADDITION TO THE  
HEAVY RAIN, GUSTY WINDS, COASTAL FLOODING, AND ISOLATED SEVERE  
THUNDERSTORMS IN THE COASTAL CAROLINAS WILL ALSO BE A CONCERN AS  
THIS STORM MOVES THROUGH. BELOW NORMAL TEMPERATURES ARE EXPECTED  
TO CONTINUE ACROSS MUCH OF THE EASTERN U.S. THROUGH THE WEEKEND.  
 
THE UPPER MIDWEST AND GREAT LAKES REGION WILL CONTINUE TO SEE  
PERIODS OF RAIN AS A NEARLY STATIONARY FRONTAL BOUNDARY REMAINS  
DRAPED ACROSS THE UPPER LAKES REGION AND A LOW PRESSURE SYSTEM  
MOVES IN FROM THE WEST ON SATURDAY. TEMPERATURES ARE EXPECTED TO  
WARM ACROSS THE CENTRAL U.S., WITH ABOVE NORMAL TEMPERATURES  
SPREADING EAST FROM THE PLAINS INTO THE MID AND LOWER MISSISSIPPI  
VALLEY OVER THE WEEKEND.  
 
OUT WEST, A FRONTAL SYSTEM WILL CONTINUE TO PUSH EAST ACROSS THE  
NORTHEAST TONIGHT. THIS WILL BE FOLLOWED BY A SECOND  
MOISTURE-LADEN FRONTAL SYSTEM THAT WILL PRODUCE LOCALLY HEAVY  
PRECIPITATION ACROSS THE PACIFIC NORTHWEST INTO THE NORTHERN  
ROCKIES BEGINNING BY LATE SATURDAY AND CONTINUING INTO SUNDAY.  
HEAVIER ACCUMULATIONS CAN BE EXPECTED ALONG THE COASTAL RANGES,  
CASCADES, AS WELL AS THE ALONG THE NORTHERN ROCKIES FROM NORTHERN  
IDAHO INTO WESTERN MONTANA. THIS WILL ALSO INTRODUCE BELOW NORMAL  
TEMPERATURES TO THE NORTHWEST ON SUNDAY, WHILE ABOVE NORMAL  
TEMPERATURES PERSIST ACROSS MUCH OF THE REMAINDER WESTERN U.S.  
THROUGH THE WEEKEND.  
 
PEREIRA  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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