746
FXUS01 KWBC 260854
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
453 AM EDT FRI SEP 26 2008
VALID 12Z FRI SEP 26 2008 - 00Z SUN SEP 28 2008
A COASTAL STORM WHICH WAS BREWING OFFSHORE THE PAST FEW DAYS HAD
EARLIER MOVED ONSHORE IN CLOSE PROXIMITY TO THE NORTH
CAROLINA/SOUTH CAROLINA BORDER. AS THE SURFACE PRESSURE RAPIDLY
DEEPENED UPON ITS APPROACH INLAND...WINDS CONTINUED TO INCREASE AS
THE PRESSURE GRADIENT INCREASED ACROSS THE EAST COAST. WHILE WINDS
WILL GRADUALLY DIMINISH OVER THE COURSE OF THE NEXT 24
HOURS...RAINFALL WILL REMAIN A THREAT THROUGH THE WEEKEND. THE
ENERGY PROVIDED BY THE SURFACE LOW PRESSURE AREA WILL CONTINUE THE
THREAT FOR PRECIPITATION ACROSS INLAND AREAS OF NORTH CAROLINA AND
VIRGINIA. SOME LOCAL ENHANCEMENTS CAN BE EXPECTED WITH THE
INTERACTIONS OF THE COASTAL SYSTEM WITH THE HIGH TERRAIN ALONG THE
SOUTHERN AND CENTRAL APPALACHIANS. FARTHER TO THE NORTH...A
PERSISTENT EASTERLY TO SOUTHEASTERLY FLOW WILL BRING A CONVEYOR
BELT OF ATLANTIC MOISTURE INLAND ACROSS THE NEW ENGLAND STATES.
CONSEQUENTLY...CLOUDY AND RAINY CONDITIONS WILL BE THE RULE TO END
THE WORK WEEK AND INTO THE EARLY PART OF THE WEEKEND WITH HIGH
TEMPERATURES REMAINING IN THE 60S. THE TEMPERATURES ACROSS THE
MID-ATLANTIC STATES SHOULD BEGIN TO REBOUND BY THE WEEKEND WITH
HIGHS PUSHING BACK INTO THE 70S ONCE AGAIN.
ELSEWHERE...A PACIFIC FRONTAL BOUNDARY WILL CONTINUE TO MOVE
THROUGH THE HIGH TERRAIN OF THE WEST AND EMERGE INTO THE CENTER OF
THE COUNTRY BY MIDDAY THURSDAY. WHILE INITIALLY BEING A FAIRLY DRY
BOUNDARY...IT WILL BEGIN TO PICK UP GULF MOISTURE AS IT MOVES INTO
THE NORTHERN PLAINS AND UPPER MIDWEST. BY THURSDAY AFTERNOON AND
EVENING...A LINE OF SHOWERS AND THUNDERSTORMS SHOULD FORM ALONG
THE FRONTAL BOUNDARY WHERE SOME OF THE STORMS MAY PRODUCE SOME
LARGE HAIL OR DAMAGING WIND GUSTS. THE ACTIVITY SHOULD BEGIN TO
DIMINISH IN INTENSITY AS THE SYSTEM CROSSES INTO THE GREAT LAKES
THE FOLLOWING DAY. ONCE THE WEATHER SYSTEM LEAVES THE CENTER OF
THE NATION...A SURFACE DOME OF HIGH PRESSURE WILL SPILL IN FROM
CANADA BRINGING COOLER CONDITIONS TO THE NORTHERN TIER. BY
SATURDAY NIGHT...OVERNIGHT LOWS WILL DROP INTO THE LOW TO MID 40S
AS CLEARING SKIES AND CALM WINDS WILL ENHANCE THE NOCTURNAL
COOLING.
WHILE THE NEW ENGLAND STATES WILL BE IMPACTED BY THE PREVIOUSLY
MENTIONED COASTAL STORM DURING THE NEXT COUPLE OF DAYS...CLOSE
ATTENTION WILL ALSO BE PAYED TO TROPICAL STORM KYLE WHICH
CURRENTLY SITS JUST NORTH OF PUERTO RICO. WHILE THE FORECAST
TRACKS HAVE VARIED SINCE THE STORM HAD BEEN NAMED...ITS CLOSE
PROXIMITY TO THE NEW ENGLAND COASTLINE MAY CREATE SIGNIFICANT
IMPACTS TO THE REGION. PLEASE VISIT THE NATIONAL HURRICANE CENTER
WEBSITE AT WWW.NHC.NOAA.GOV FOR THE LATEST INFORMATION ON KYLE.
RUBIN-OSTER
GRAPHICS AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page