854  
FXUS01 KWBC 110756  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
255 AM EST MON FEB 11 2019  
 
VALID 12Z MON FEB 11 2019 - 12Z WED FEB 13 2019  
 
...MORE HEAVY SNOW FOR THE NORTHWEST U.S. AND A MAJOR WINTER STORM  
DEVELOPS FOR THE MIDWEST AND NORTHEAST...  
 
A DEVELOPING WINTER STORM WILL BRING WIDESPREAD MODERATE TO HEAVY  
SNOW TO MUCH OF THE MIDWEST AND GREAT LAKES MONDAY NIGHT AND INTO  
TUESDAY, AND THEN REACHING THE NORTHEAST BY TUESDAY AND EARLY  
WEDNESDAY. THE POTENTIAL EXISTS FOR 6 TO 12 INCHES OF SNOW FROM  
EASTERN IOWA TO NORTHERN MICHIGAN, AND ALSO ACROSS UPSTATE NEW  
YORK AND NORTHERN NEW ENGLAND WITH LOCALIZED HIGHER AMOUNTS. A  
WINTRY MIX OF PRECIPITATION, INCLUDING THE POTENTIAL FOR SOME  
SIGNIFICANT ICE ACCRETION, IS LIKELY TO THE SOUTH OF THE HEAVY  
SNOW AXIS, EXTENDING FROM THE OHIO VALLEY AND SOUTHERN GREAT LAKES  
TO THE NORTHERN MID-ATLANTIC REGION AND ALSO SOUTHERN NEW ENGLAND.  
SIGNIFICANT TRAVEL IMPACTS ARE ANTICIPATED FOR EARLY IN THE WEEK,  
AND SOME POWER DISRUPTIONS ARE ALSO POSSIBLE.  
 
FARTHER TO THE SOUTH IN THE WARM SECTOR OF THE STORM SYSTEM, AN  
ENHANCED SOUTHERLY FLOW OF DEEP MOISTURE FROM THE GULF OF MEXICO  
WILL RESULT IN A SWATH OF HEAVY RAIN AND SOME THUNDERSTORMS FROM  
LOUISIANA TO THE OHIO VALLEY THROUGH TUESDAY. FLASH FLOODING WILL  
BE POSSIBLE ACROSS SOME OF THESE AREAS AS ROUNDS OF HEAVY RAIN  
MOVE OVER THE SAME AREAS REPEATEDLY, AND WPC CURRENTLY HAS A  
SLIGHT TO MODERATE RISK OF EXCESSIVE RAINFALL FROM ARKANSAS TO  
SOUTHERN OHIO. SEVERAL INCHES OF RAINFALL WILL BE POSSIBLE FOR  
SOME AREAS BEFORE THE EVENT IS OVER.  
 
A SERIES OF WINTER STORMS IMPACTING THE WESTERN U.S. WILL CONTINUE  
TO BRING ROUNDS OF WIDESPREAD SNOWFALL TO MUCH OF THE PACIFIC  
NORTHWEST, NORTHERN CALIFORNIA, AND THE NORTHERN ROCKIES. GIVEN  
THE PRESENCE OF BELOW NORMAL TEMPERATURES ACROSS THIS REGION  
ALREADY, SNOW LEVELS REMAIN LOW WITH ACCUMULATING SNOWFALL LIKELY  
NEAR OR JUST ABOVE SEA LEVEL FOR WESTERN WASHINGTON AND OREGON.  
THE MOST SIGNIFICANT SNOWFALL IS EXPECTED ACROSS THE HIGHER  
TERRAIN OF THE WASHINGTON AND OREGON CASCADES, WHERE 1 TO 3 FEET  
OF SNOW IS LIKELY.  
 
D. HAMRICK  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 

 
 
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