504  
FXUS01 KWBC 280758  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
258 AM EST THU FEB 28 2019  
 
VALID 12Z THU FEB 28 2019 - 12Z SAT MAR 02 2019  
 
...LIGHTER PRECIPITATION EXPECTED TO CONTINUE IN THE WEST BEFORE  
RAMPING UP AGAIN ON SATURDAY...  
 
...ANOTHER SWATH OF LIGHT TO MODERATE SNOW EXPECTED ACROSS THE  
NORTHERN PLAINS, UPPER MIDWEST, AND NORTHEAST...  
 
...SHOWERS AND THUNDERSTORMS FORECAST FOR THE SOUTHEASTERN U.S.,  
WITH FROZEN PRECIPITATION POSSIBLE ON THE NORTHERN SIDE...  
 
...MUCH BELOW AVERAGE TEMPERATURES WILL CONTINUE FOR THE  
FORESEEABLE FUTURE IN THE NORTHERN PLAINS...  
 
THROUGH THE END OF THE WORKWEEK, AN UPPER-LEVEL LOW WILL SPIN NEAR  
THE PACIFIC NORTHWEST, WHICH WILL HELP KEEP PRECIPITATION FALLING  
IN THE WESTERN U.S., ALBEIT LIGHTER THAN EARLIER THIS WEEK.  
NEVERTHELESS, THE SIERRA NEVADA COULD SEE AN ADDITIONAL 8 TO 12  
INCHES OF SNOW, AND THE WASATCH AND CENTRAL ROCKIES CAN EXPECT  
OVER A FOOT OF SNOW. IN THE PACIFIC NORTHWEST, THE LOWER ELEVATION  
CITIES OF SEATTLE AND PORTLAND COULD SEE A LITTLE SNOW TODAY  
BEFORE DRYING OUT FOR THE WEEKEND. THE AFOREMENTIONED UPPER LOW  
WILL SEND ENERGY EASTWARD BEGINNING ON THURSDAY NIGHT THROUGH THE  
NORTHERN PLAINS AND EAST. SOME LIGHT TO MODERATE SNOW IS EXPECTED  
WITH THIS FEATURE FROM THE NORTHERN PLAINS TO THE UPPER MIDWEST  
AND UPPER GREAT LAKES ON FRIDAY, THEN INTO THE NORTHEAST BY  
SATURDAY MORNING. GENERALLY 1 TO 4 INCHES OF SNOW IS EXPECTED.  
ANOTHER LOW WILL APPROACH THE WEST BY FRIDAY NIGHT, LEADING TO  
POTENTIALLY LOCALLY HEAVY RAIN BY SATURDAY IN CALIFORNIA.  
 
A FRONTAL BOUNDARY WILL LINGER FROM TEXAS THROUGH THE LOWER  
MISSISSIPPI VALLEY AND SOUTHEAST THROUGHOUT THE PERIOD, AND  
SCATTERED SHOWERS AND THUNDERSTORMS ARE FORECAST TO CONTINUE  
THERE. RAINFALL AMOUNTS WILL GENERALLY BE LESS THAN AN INCH, BUT  
LOCALIZED FLOODING COULD BE POSSIBLE PARTICULARLY OVER AREAS THAT  
HAVE BEEN EXCEPTIONALLY WET OVER THE PAST COUPLE OF WEEKS. LIGHT  
ACCUMULATING FREEZING RAIN IS POSSIBLE ON THURSDAY MORNING ON THE  
NORTHERN EDGE OF THE PRECIPITATION IN PORTIONS OF THE SOUTHERN  
PLAINS AND LOWER/MIDDLE MISSISSIPPI VALLEY. WINTER WEATHER  
ADVISORIES ARE IN EFFECT FOR THIS THREAT. BY THURSDAY NIGHT, MIXED  
PRECIPITATION IS FORECAST TO DEVELOP ACROSS THE CENTRAL  
APPALACHIANS AND NORTHERN MID-ATLANTIC REGION, AND SNOW IS  
POSSIBLE FOR SOUTHERN PARTS OF THE NORTHEAST ON FRIDAY.  
 
BELOW NORMAL TEMPERATURES WILL PREVAIL ACROSS THE NORTHERN/CENTRAL  
PLAINS AND UPPER MIDWEST THROUGH THE END OF THE WEEK (AND BEYOND).  
ON THURSDAY, HIGH TEMPERATURES OF 15 TO 30 DEGREES BELOW AVERAGE  
ARE EXPECTED FOR MUCH OF THE PLAINS AND INTO THE UPPER/MIDDLE  
MISSISSIPPI VALLEY. TEMPERATURES OF 20 TO 40 BELOW AVERAGE ARE  
FORECAST FOR THE NORTHERN PLAINS ON FRIDAY AND SATURDAY MORNING  
AFTER ANOTHER COLD FRONT PASSES THROUGH. MEANWHILE, HIGHS IN THE  
70S ARE EXPECTED FOR THE SOUTHWEST AND THE SOUTHEAST.  
 
TATE  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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