953
FXUS01 KWBC 180718
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
318 AM EDT FRI SEP 18 2009
VALID 12Z FRI SEP 18 2009 - 00Z SUN SEP 20 2009
THE VERY PERSISTENT UPPER LOW THAT HAS LINGERED NEAR THE LOWER
MISSISSIPPI VALLEY FOR SEVERAL DAYS NOW MAY FINALLY LIFT OUT OF
THE REGION NEAR THE END OF THE PERIOD...BUT NOT BEFORE ENCOURAGING
MORE SHOWERS AND THUNDERSTORMS AS IT CONTINUES TO DRAW MOISTURE IN
FROM THE GULF OF MEXICO INTO THE LOWER MISSISSIPPI VALLEY AND
SOUTHEASTERN U.S.
FURTHER TO THE NORTH...SOME SCATTERED LIGHT RAINS CAN BE EXPECTED
ALONG A COLD FRONT MOVING OUT OF SOUTHEASTERN CANADA INTO THE
NORTHEAST LATER TODAY BEFORE HIGH PRESSURE AND COOLER/DRIER
CONDITIONS BEGIN TO DOMINATE THE PATTERN ACROSS THE NORTHEASTERN
QUARTER OF THE NATION OVER THE NEXT COUPLE OF DAYS.
OUT WEST...A STRONG PACIFIC COLD FRONT WILL MOVE INTO WESTERN
CANADA AND THE PACIFIC NORTHWEST...BRINGING SOME HEAVY RAINS TO
BRITISH COLUMBIA BUT WITH GENERALLY LIGHTER RAINS EXTENDING SOUTH
OF THE BORDER ACROSS THE PACIFIC NORTHWEST AND THE NORTHERN GREAT
BASIN.
PEREIRA
GRAPHICS AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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