508  
FXUS01 KWBC 041928  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
228 PM EST SUN MAR 04 2018  
 
VALID 00Z MON MAR 05 2018 - 00Z WED MAR 07 2018  
 
...A MAJOR WINTER STORM WITH HEAVY SNOW AND STRONG WINDS WILL  
IMPACT PORTIONS OF THE NORTHERN PLAINS AND UPPER MIDWEST...WITH  
BLIZZARD CONDITIONS EXPECTED LOCALLY...  
 
...WIDESPREAD SHOWERS AND EMBEDDED THUNDERSTORMS WILL OVERSPREAD  
THE LOWER AND MIDDLE MISSISSIPPI VALLEY MONDAY AND ADVANCE EAST  
ACROSS THE GULF COAST STATES, AND THE OHIO AND TENNESSEE VALLEYS  
THROUGH TUESDAY...  
 
...VERY DRY, MILD AND WINDY CONDITIONS OVER THE SOUTHERN HIGH  
PLAINS WILL FOSTER AN ENHANCED FIRE DANGER RISK...  
 
THE UPPER-LEVEL TROUGH AND SURFACE COLD FRONT MOVING EAST THROUGH  
THE GREAT BASIN AND ROCKIES TODAY WILL MOVE OUT OVER THE CENTRAL  
U.S. ON MONDAY AND LEAD TO A MAJOR WINTER STORM IMPACTING A LARGE  
AREA OF THE NORTHERN PLAINS AND PARTS OF THE FAR UPPER MIDWEST.  
HEAVY SNOW AND STRONG WINDS ARE EXPECTED AS LOW PRESSURE  
INTENSIFIES AND SLOWLY MOVES EAST ACROSS THE CENTRAL PLAINS AND  
MIDWEST. BLIZZARD CONDITIONS ARE EXPECTED FROM SOUTHWEST NORTH  
DAKOTA DOWN ACROSS MUCH OF CENTRAL SOUTH DAKOTA AND FAR NORTHERN  
NEBRASKA GIVEN THE EXPECTED HIGH WINDS. OVER 1 FOOT OF SNOW IS  
EXPECTED LOCALLY WITH THIS WINTER STORM GOING THROUGH TUESDAY  
BEFORE THE SYSTEM THEN BEGINS TO MOVE TOWARD THE EASTERN U.S. MOST  
OF THE EASTERN SEABOARD IS EXPECTED TO START OFF THE WEEK COOL AND  
DRY AHEAD OF THIS SYSTEM. ONE EXCEPTION IS PARTS OF SOUTHERN NEW  
ENGLAND WHERE SOME SNOW SHOWER ACTIVITY IS EXPECTED MONDAY IN  
ASSOCIATION WITH AN UPPER LEVEL DISTURBANCE CROSSING THE REGION.  
 
SOUTHERLY FLOW INCREASING AHEAD OF THE AFOREMENTIONED STORM SYSTEM  
WILL ALSO BE TRANSPORTING PLENTY OF GULF OF MEXICO MOISTURE OFF TO  
THE NORTH WITH TIME, AND THIS WILL LEAD TO NUMEROUS SHOWERS AND  
THUNDERSTORMS DEVELOPING OVER THE LOWER AND MIDDLE MISSISSIPPI  
VALLEY AND THEN SPREADING EAST ACROSS THE OHIO AND TENNESSEE  
VALLEYS AND INCLUDING THE GULF COAST STATES MONDAY AND TUESDAY.  
SOME LOCALLY HEAVY RAINFALL WILL OCCUR, BUT RIGHT NOW THE AMOUNTS  
DO NOT APPEAR TO BE HEAVY ENOUGH TO SUPPORT MUCH IN THE WAY OF A  
FLOODING THREAT.  
 
THE WEATHER THOUGH WILL REMAIN QUITE DRY AND WINDY GOING THROUGH  
MONDAY ACROSS MUCH OF THE SOUTHERN HIGH PLAINS REGION. THE GUSTY  
WINDS AHEAD OF A COLD FRONT AND ALSO BEHIND IT COUPLED WITH LOW  
RELATIVE HUMIDITIES WILL MAINTAIN THE THREAT FOR DANGEROUS FIRE  
WEATHER CONDITIONS. THE FIRE WEATHER THREAT SHOULD TEND TO SUBSIDE  
BY TUESDAY THOUGH AS THE WINDS BEGIN TO DIMINISH.  
 
ELSEWHERE, THE WESTERN U.S. WILL START OFF THE WEEK WITH COOL  
TEMPERATURES, BUT WITH THE MOST RECENT WINTER STORM PULLING OFF TO  
THE EAST, THE CONDITIONS SHOULD BEGIN TO DRY OUT WITH HIGH  
PRESSURE BUILDING IN ACROSS THE INTERMOUNTAIN WEST. SOME GRADUAL  
MODERATION IN TEMPERATURES CAN BE EXPECTED TOWARD MIDWEEK, WITH  
THE WARMEST TEMPERATURES OVERALL FOCUSED DOWN ACROSS THE DESERT  
SOUTHWEST.  
 
ORRISON  
 
GRAPHICS AVAILABLE AT  
WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  

 
 
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