048
FXUS01 KWBC 201941
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
340 PM EDT WED AUG 20 2008
VALID 00Z THU AUG 21 2008 - 12Z FRI AUG 22 2008
TROPICAL STORM FAY...CURRENTLY LOCATED OVER FLORIDA'S CENTRAL
ATLANTIC COAST...IS EXPECTED TO FOLLOW THE COAST NORTHWARD AND
ENTER INTO NORTHERN FLORIDA BY MID-AFTERNOON TOMORROW. THE STORM
WILL CONTINUE TO PRODUCE HEAVY RAIN...THUNDERSTORMS...AND STRONG
WIND AS IT PROGRESSES WESTWARD...MOVING INTO THE FLORIDA PANHANDLE
EARLY FRIDAY. THE NORTHWARD PROGRESSION OF TROPICAL STORM FAY HAS
BEEN HAMPERED BY THE LARGE DOME OF HIGH PRESSURE LOCATED OVER THE
LOWER GREAT LAKES REGION. PLEASE VISIT THE NATIONAL HURRICANE
CENTER WEBSITE AT WWW.NHC.NOAA.GOV FOR MORE UP TO DATE INFORMATION
ON THE FORECAST TRACK OF FAY.
MEANWHILE...A DEEP UPPER LEVEL TROUGH WILL MOVE EASTWARD OVER THE
PACIFIC NORTHWEST INTO THE NORTHERN ROCKIES BY THURSDAY EVENING.
THE TROUGH AND ASSOCIATED FRONTS WILL BRING RAIN OVER PARTS OF THE
NORTHWEST AND SHOWERS/THUNDERSTORMS OVER PARTS OF THE NORTHERN
PLAINS THROUGH FRIDAY.
THE MIDDLE...AND LOWER MISSISSIPPI VALLEYS WILL CONTINUE TO SEE
SCATTERED SHOWERS AND THUNDERSTORMS AS THE WEEKEND APPROACHES. THE
PRECIPITATION IS A RESULT OF AN INFLUX OF MOUISTURE FROM THE GULF
OF MEXICO DRIVEN BY THE LOW CIRCULATION IN NORTH CENTRAL TEXAS. AS
THE TROUGH ASSOCIATED WITH THE LOW DEEPENS...THE SHOWERS WILL MOVE
FURTHER NORTH INTO THE NORTHERN MISSISSIPPI VALLEY.
COLLINS
GRAPHICS AVAILABLE AT WWW.HPC.NCEP.NOAA.GOV
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