918  
FXUS01 KWBC 081914  
PMDSPD  
 
SHORT RANGE FORECAST DISCUSSION  
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD  
213 PM EST FRI MAR 08 2024  
 
VALID 00Z SAT MAR 09 2024 - 00Z MON MAR 11 2024  
 
...SNOW GRADUALLY TAPERING OFF OVER THE CENTRAL HIGH PLAINS AS  
WELL AS CENTRAL/SOUTHERN ROCKIES...  
 
...THREAT OF FLASH FLOODING AND SEVERE WEATHER EXPECTED TO SWEEP  
ACROSS THE DEEP SOUTH TO THE SOUTHEAST THE NEXT COUPLE OF DAYS...  
 
...AN INTENSIFYING LOW PRESSURE SYSTEM WILL BRING LOCALLY HEAVY  
RAIN AND STRONG WINDS FROM THE OHIO VALLEY TO NEW ENGLAND LATE  
SATURDAY INTO SUNDAY...  
 
...WET SNOW EXPECTED ACROSS THE GREAT LAKES TO NORTHERN NEW  
ENGLAND LATE SATURDAY TO SUNDAY AS NEXT ROUND OF RAIN AND MOUNTAIN  
SNOW REACHES THE PACIFIC NORTHWEST...  
 
THE MID-SECTION OF THE COUNTRY WILL BE IN AN UNSETTLED PATTERN  
WITH ACTIVE TO LOCALLY SEVERE WEATHER INTO THE WEEKEND AS  
UPPER-LEVEL PACIFIC MOISTURE IN ASSOCIATION WITH A SUBTROPICAL JET  
STREAM WILL INTERACTS WITH A COLD AIR MASS DIPPING INTO THE CENTER  
OF THE COUNTRY. MEANWHILE LOWER-LEVEL MOISTURE FROM THE GULF OF  
MEXICO WILL BE INGESTED INTO THE SYSTEM AS WELL. THESE COMPLEX  
INTERACTIONS WILL RESULT IN AN AXIS OF HEAVY RAIN AND POSSIBLY  
SEVERE WEATHER TO DEVELOP OVER THE LOWER MISSISSIPPI VALLEY  
SPREADING ACROSS THE GULF STATES AND INTO THE SOUTHEAST BY  
SATURDAY. THE STORM PREDICTION CENTER HAS SLIGHT RISKS IN EFFECT  
FOR SEVER WEATHER THROUGH SUNDAY MORNING FOR PARTS OF THE DEEP  
SOUTH AND SOUTHEAST. THE WEATHER PREDICTION CENTER HAS MODERATE AN  
SLIGHT RISKS IN EFFECT FOR MUCH OF THE SAME REGION FOR EXCESSIVE  
RAINFALL AND FLOODING CONCERNS.  
 
MEANWHILE TO THE NORTH, A LOW-LEVEL DISTURBANCE THAT HAS BEEN  
SUSTAINING LOCALLY HEAVY SNOW OVER THE CENTRAL HIGH PLAINS IS  
FORECAST TO WEAKEN AND ALLOW THE SNOW THERE, AS WELL AS THE SNOW  
OVER THE CENTRAL TO SOUTHERN ROCKIES, TO GRADUALLY TAPER OFF INTO  
THIS EVENING. BY SATURDAY, A LOW PRESSURE CENTER IS FORECAST TO  
CONSOLIDATE OVER THE OHIO VALLEY WHEN THE SYSTEM INTENSIFIES MORE  
RAPIDLY AND TRACKS NORTHEASTWARD INTO THE LOWER GREAT LAKES  
SATURDAY NIGHT. THIS WILL LEAD TO AREAS OF LOCALLY HEAVY RAIN  
ALONG WITH INCREASINGLY STRONG AND GUSTY WINDS TO DEVELOP FROM THE  
OHIO VALLEY TO NEW ENGLAND LATE SATURDAY INTO SUNDAY. COLDER AIR  
WRAPPING AROUND THE LOW PRESSURE CENTER IS EXPECTED TO CHANGE THE  
RAIN TO WET SNOW FROM ACROSS THE GREAT LAKES TO PORTIONS OF  
NORTHERN NEW ENGLAND ESPECIALLY FOR THE HIGHER ELEVATIONS.  
 
IN THE WAKE OF THESE SYSTEMS HIGH PRESSURE WILL BUILD IN OVER THE  
CENTRAL U.S. AND WILL PROMOTE DRYING OUT SATURDAY. THE DRY WEATHER  
WILL EXTEND INTO MUCH OF THE WESTERN U.S. HOWEVER, MOISTURE  
ASSOCIATED WITH THE NEXT PACIFIC SYSTEM IS FORECAST TO REACH THE  
OLYMPIC PENINSULA LATER TODAY WITH RAIN FOR THE LOWER ELEVATIONS  
AND SNOW FOR RATHER HIGH ELEVATIONS. THE RAIN AND MOUNTAIN SNOW  
WILL EXPAND SOUTHWARD ACROSS OREGON AND INTO NORTHERN CALIFORNIA  
ON SATURDAY INTO SATURDAY NIGHT. THE CASCADES WILL SEE SNOW  
PICKING UP INTENSITY ON SATURDAY AS THE NEXT BATCH OF MOISTURE  
GETS READY TO REACH THE COASTLINE OF THE PACIFIC NORTHWEST BY  
EARLY ON SUNDAY.  
 
CAMPBELL/KONG  
 
GRAPHICS AVAILABLE AT  
HTTPS://WWW.WPC.NCEP.NOAA.GOV/BASICWX/BASICWX_NDFD.PHP  
 
 
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