958
FXUS01 KWBC 230638
PMDSPD
SHORT RANGE FORECAST DISCUSSION
NWS HYDROMETEOROLOGICAL PREDICTION CENTER CAMP SPRINGS MD
238 AM EDT SAT AUG 23 2008
VALID 12Z SAT AUG 23 2008 - 00Z MON AUG 25 2008
TROPICAL STORM FAY WILL CONTINUE TO BRING HEAVY AND EXCESSIVE
PRECIPITATION TO THE EASTERN GULF COAST STATES THIS WEEKEND AS THE
SYSTEM SLOWLY MOVES WESTWARD. FAY IS FORECAST TO RETAIN HER WELL-
DEFINED CIRCULATION...WHILE BARELY HANGING ONTO TO HER TROPICAL
STORM STATUS. IN A NUTSHELL...FAY WILL CONTINUE TO MOVE ALONG THE
GULF COAST FROM THE FLORIDA PANHANDLE TO EASTERN LOUISIANA. THIS
TROPICAL CYCLONE WILL CONTINUE TO BE A SIGNIFICANT WEATHER
PRODUCER...THE THREAT OF FLOODING AND SEVERE THUNDERSTORMS WILL
LINGER INTO NEXT WEEK. FOR MORE INFORMATION ON THE EVOLUTION OF
TROPICAL CYCLONE FAY...PLEASE REFER TO THE TROPICAL PREDICTION
CENTER. FOR THE THREAT OF FLOODING IN YOUR AREA...PLEASE REFER TO
YOUR LOCAL NWS FIELD OFFICE.
ELSEWHERE...WESTERLY FLOW OFF THE GULF OF MEXICO WILL CHURN A
FETCH OF MOISTURE INTO TEXAS AS WELL AS MEXICO. MEANWHILE...A WEAK
IMPULSE WILL PROVIDE ENOUGH INSTABILITY TO SUSTAIN AN AREA OF
DISTURBED WEATHER ALONG THE LOWER RIO GRANDE. HEADING NORTH...A
DEEP AND PROGRESSIVE LOW PRESSURE SYSTEM THAT IS CURRENTLY LOCATED
OVER ONTARIO WILL PUSH NORTH-NORTHEASTWARD DEEPER INTO CANADA.
ALTHOUGH THE BULK OF THE DYNAMICS WILL REMAIN NORTH OF THE
U.S./CANADIAN BORDER...A COLD FRONT STEMMING FROM THE PARENT
LOW...WILL SWEEP ACROSS THE GREAT LAKES REGION AND INTO THE
NORTHEAST. THIS BOUNDARY WILL PROVE TO BE AN EFFICIENT LIFTING
MECHANISM...BRINGING CONVECTION TO THE MISSISSIPPI AND OHIO
VALLEYS...AS WELL AS THE NORTHEAST. LAST BUT NOT LEAST...ANOTHER
PACIFIC CYCLONE IS CLOSING IN ON BRITISH COLUMBIA AND THE PACIFIC
NORTHWEST...WITH A NOTICEABLE BREAKING DOWN OF THE UPPER LEVEL
RIDGE ANTICIPATED ON SUNDAY. BY MONDAY...EXPECT SHOWERS TO REACH
WASHINGTON STATE AND OREGON...WITH THE BEST CHANCE OF
ACCUMULATIONS MATERIALIZING OVER THE COASTAL RANGES WHERE
OROGRAPHIC LIFT WILL ENHANCE THE PRECIPITATION.
SZATANEK
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