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BULLETIN
TROPICAL STORM GABRIELLE ADVISORY NUMBER 9
NATIONAL WEATHER SERVICE MIAMI FL
5 PM EDT THU SEP 13 2001
...GABRIELLE MOVING NORTHEASTWARD...WATCHES AND WARNINGS
ISSUED...FLOOD THREAT INCREASING...
AT 5 PM EDT...2100Z...A TROPICAL STORM WARNING IS IN EFFECT FOR THE
FLORIDA KEYS FROM CRAIG KEY WESTWARD TO THE DRY TORTUGAS...INCLUDING
FLORIDA BAY...AND FOR THE FLORIDA WEST COAST FROM FLAMINGO NORTHWARD
TO THE MOUTH OF THE SUWANNEE RIVER.
IN ADDITION...AT 5 PM EDT...2100Z...A HURRICANE WATCH IS IN EFFECT
FOR THE FLORIDA WEST COAST FROM CHOKOLOSKEE TO TARPON SPRINGS.
AT 5 PM EDT...2100Z...THE CENTER OF TROPICAL STORM GABRIELLE WAS
LOCATED NEAR LATITUDE 25.5 NORTH...LONGITUDE 84.3 WEST OR ABOUT
165 MILES WEST-SOUTHWEST OF NAPLES FLORIDA.
GABRIELLE IS MOVING TOWARD THE NORTHEAST NEAR 6 MPH AND THIS
GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 24 HOURS. ON
THIS TRACK THE CENTER WILL BE APPROACHING THE WEST-CENTRAL COAST OF
FLORIDA ON FRIDAY. HOWEVER...A SLOWER AND MORE NORTHWARD MOTION IS
ALSO POSSIBLE. EVEN IF THE CENTER REMAINS OFFSHORE DURING THE NEXT
24 HOURS...HEAVY RAINS AND INCREASING WINDS ARE EXPECTED OVER THE
WARNING AREAS.
MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH... 85 KM/HR...WITH HIGHER
GUSTS. GABRIELLE HAS THE POTENTIAL TO BE A HURRICANE WHEN IT
REACHES THE COAST.
TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 115 MILES
...185 KM FROM THE CENTER.
AN AIR FORCE HURRICANE HUNTER PLANE RECENTLY REPORTED THAT THE
MINIMUM CENTRAL PRESSURE IS 998 MB...29.47 INCHES.
VERY HEAVY RAINFALL...LOCALLY IN EXCESS OF 10 INCHES...IS LIKELY
OVER PORTIONS OF THE FLORIDA PENINSULA AND KEYS DURING THE NEXT DAY
OR TWO. SOME PARTS OF SOUTH AND CENTRAL FLORIDA ARE ALREADY
SATURATED...AND THERE IS A SERIOUS FLOOD THREAT IN THESE AREAS.
CONSULT STATEMENTS FROM NATIONAL WEATHER SERVICE FORECAST OFFICES
AND EMERGENCY MANAGEMENT OFFICES FOR DETAILS.
STORM SURGE FLOODING OF 2 TO 4 FEET ABOVE NORMAL IS LIKELY NEAR AND
TO THE SOUTH OF WHERE THE CENTER CROSSES THE COAST.
THERE IS THE RISK OF ISOLATED TORNADOES OVER THE FLORIDA PENINSULA
AND THE KEYS.
REPEATING THE 5 PM EDT POSITION...25.5 N... 84.3 W. MOVEMENT
TOWARD...NORTHEAST NEAR 6 MPH. MAXIMUM SUSTAINED
WINDS... 50 MPH. MINIMUM CENTRAL PRESSURE... 998 MB.
FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR
PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE.
THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT
11 PM EDT.
FORECASTER PASCH
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