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#520860 (Received by flhurricane at: 5:08 PM 24.Jun.2012) TCPAT4 BULLETIN TROPICAL STORM DEBBY ADVISORY NUMBER 6 NWS NATIONAL HURRICANE CENTER MIAMI FL AL042012 400 PM CDT SUN JUN 24 2012 ...THREAT TO LOUISIANA LESSENS...TROPICAL STORM WARNINGS DISCONTINUED... SUMMARY OF 400 PM CDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...28.4N 85.8W ABOUT 205 MI...330 KM ESE OF THE MOUTH OF THE MISSISSIPPI RIVER ABOUT 100 MI...165 KM SSW OF APALACHICOLA FLORIDA MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NE OR 40 DEGREES AT 3 MPH...6 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.32 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE TROPICAL STORM WATCH HAS BEEN EXTENDED SOUTHWARD ALONG THE WEST COAST OF FLORIDA TO ENGLEWOOD. THE TROPICAL STORM WARNING FROM THE MOUTH OF THE PEARL RIVER WESTWARD TO MORGAN CITY HAS BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE MISSISSIPPI-ALABAMA BORDER EASTWARD TO THE SUWANNEE RIVER RIVER FLORIDA A TROPICAL STORM WATCH IS IN EFFECT FOR... * SOUTH OF THE SUWANNEE RIVER TO ENGLEWOOD FLORIDA A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE LATER TODAY. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 400 PM CDT...2100 UTC...THE CENTER OF TROPICAL STORM DEBBY WAS LOCATED NEAR LATITUDE 28.4 NORTH...LONGITUDE 85.8 WEST. DEBBY IS MOVING TOWARD THE NORTHEAST NEAR 3 MPH...6 KM/H. NO SIGNIFICANT MOTION IS EXPECTED DURING THE COUPLE OF DAYS...BUT THIS FORECAST CONTINUES TO BE UNCERTAIN. MAXIMUM SUSTAINED WINDS ARE NEAR 60 MPH...95 KM/H...WITH HIGHER GUSTS. SOME SLIGHT STRENGTHENING IS POSSIBLE DURING THE NEXT 48 HOURS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 200 MILES...325 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 993 MB...29.32 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE ALREADY NEAR OR OVER PORTIONS OF THE NORTHEAST GULF COAST AND ARE EXPECTED TO REACH THE REMAINDER OF THE WARNING AREA BY TONIGHT...MAKING OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. STORM SURGE...THE COMBINATION OF A STORM SURGE AND THE TIDE WILL CAUSE NORMALLY DRY AREAS NEAR THE COAST TO BE FLOODED BY RISING WATERS. THE WATER COULD REACH THE FOLLOWING DEPTHS ABOVE GROUND AT THE TIMES OF HIGH TIDE OVER THE NEXT FEW DAYS... APALACHEE BAY...4 TO 6 FT FLORIDA WEST COAST SOUTH OF APALACHEE BAY...2 TO 4 FT COASTAL MISSISSIPPI EASTWARD TO APALACHEE BAY...2 TO 4 FT SOUTHEASTERN LOUISIANA...1 TO 3 FT THE DEEPEST WATER WILL OCCUR ALONG THE IMMEDIATE COAST IN AREAS OF ONSHORE FLOW. SURGE-RELATED FLOODING DEPENDS ON THE RELATIVE TIMING OF THE SURGE AND THE TIDAL CYCLE...AND CAN VARY GREATLY OVER SHORT DISTANCES. FOR INFORMATION SPECIFIC TO YOUR AREA...PLEASE SEE PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE OFFICE. RAINFALL...DEBBY IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 5 TO 10 INCHES OVER MUCH OF THE FLORIDA PANHANDLE...NORTHERN FLORIDA...CENTRAL FLORIDA AND SOUTHEASTERN GEORGIA...WITH ISOLATED MAXIMUM AMOUNTS OF 15 TO 20 INCHES POSSIBLE. GIVEN THE RECENT HEAVY RAINFALL AND WET SOIL CONDITIONS...THESE ADDITIONAL AMOUNTS WILL EXACERBATE THE FLOODING THREAT ACROSS PORTIONS OF NORTHERN FLORIDA AND SOUTHERN ALABAMA. TOTAL RAIN ACCUMULATIONS OF 2 TO 4 INCHES ARE EXPECTED OVER COASTAL ALABAMA...MISSISSIPPI...SOUTHEASTERN LOUISIANA AND SOUTH FLORIDA... WITH ISOLATED MAXIMUM AMOUNTS OF 6 INCHES POSSIBLE. TORNADOES...A FEW ARE POSSIBLE OVER WEST AND CENTRAL FLORIDA PENINSULA TONIGHT NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...700 PM CDT. NEXT COMPLETE ADVISORY...1000 PM CDT. $$ FORECASTER AVILA |