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| #31477 (Received by flhurricane at: 4:49 PM 09.Jul.2005) TCPAT4 BULLETIN HURRICANE DENNIS ADVISORY NUMBER 21 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL 5 PM EDT SAT JUL 09 2005 ...DENNIS GAINING STRENGTH AS IT HEADS TOWARD THE NORTHEASTERN GULF COAST...COULD BECOME A MAJOR HURRICANE AGAIN LATER TONIGHT... A HURRICANE WARNING REMAINS IN EFFECT FOR PORTIONS OF THE NORTHEASTERN GULF COAST FROM THE STEINHATCHEE RIVER WESTWARD TO THE MOUTH OF THE PEARL RIVER. AT 5 PM EDT...2100Z...THE HURRICANE WARNING FOR THE LOWER FLORIDA KEYS WEST OF SEVEN MILE BRIDGE HAS BEEN CHANGED TO A TROPICAL STORM WARNING. AT 5 PM EDT...THE TROPICAL STORM WARNING HAS BEEN DISCONTINUED FOR THE SOUTHEAST FLORIDA COAST FROM GOLDEN BEACH SOUTHWARD...INCLUDING THE FLORIDA KEYS FROM SEVEN MILE BRIDGE EASTWARD. A TROPICAL STORM WARNING IS NOW IN EFFECT ALONG THE FLORIDA WEST COAST FROM EAST OF THE STEINHATCHEE RIVER SOUTHWARD TO FLAMINGO... AND FOR THE LOWER FLORIDA KEYS WEST OF SEVEN MILE BRIDGE. A TROPICAL STORM WARNING IS ALSO IN EFFECT FOR THE SOUTHEASTERN LOUISIANA COAST WEST OF THE MOUTH OF THE PEARL RIVER TO GRAND ISLE...INCLUDING METROPOLITAN NEW ORLEANS AND LAKE PONCHARTRAIN. A HURRICANE OR TROPICAL STORM WARNING MEANS THAT HURRICANE OR TROPICAL STORM CONDITIONS...RESPECTIVELY...ARE EXPECTED WITHIN THE WARNING AREA WITHIN THE NEXT 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION IN THE HURRICANE WARNING AREA. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL WEATHER OFFICE. AT 5 PM EDT...2100Z...THE CENTER OF HURRICANE DENNIS WAS LOCATED NEAR LATITUDE 25.7 NORTH... LONGITUDE 84.6 WEST OR ABOUT 320 MILES... 510 KM... SOUTH-SOUTHEAST OF PANAMA CITY FLORIDA AND ABOUT 415 MILES... 670 KM...SOUTHEAST OF BILOXI MISSISSIPPI. DENNIS IS MOVING TOWARD THE NORTHWEST NEAR 14 MPH...AND THIS MOTION IS EXPECTED TO CONTINUE TODAY WITH A GRADUAL TURN TOWARD THE NORTH-NORTHWEST TONIGHT OR SUNDAY. MAXIMUM SUSTAINED WINDS RECENTLY REPORTED BY AN AIR FORCE RECONNAISSANCE AIRCRAFT WERE NEAR 105 MPH...WITH HIGHER GUSTS. DENNIS IS A STRONG CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON SCALE. ADDITIONAL STRENGTHENING IS FORECAST DURING THE NEXT 24 HOURS...AND DENNIS WILL BECOME A CATEGORY 3 HURRICANE AGAIN LATER TONIGHT OR EARLY SUNDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 40 MILES... 65 KM... FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. THE MINIMUM CENTRAL PRESSURE RECENTLY REPORTED BY A NOAA HURRICANE HUNTER RESEARCH AIRCRAFT WAS 955 MB...28.20 INCHES. DENNIS IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 4 TO 8 INCHES ACROSS THE FLORIDA KEYS...THE FLORIDA WEST COAST...THE FLORIDA PANHANDLE...SOUTHERN ALABAMA...AND SOUTHERN MISSISSIPPI. ISOLATED TOTALS NEAR 12 INCHES ARE POSSIBLE NEAR WHERE DENNIS MAKES LANDFALL ALONG THE GULF COAST. ADDITIONAL RAIN ACCUMULATIONS OF 3 TO 6 INCHES ARE POSSIBLE ACROSS CENTRAL CUBA...WHICH COULD PRODUCE LIFE-THREATENING FLASH FLOODS AND MUDSLIDES. STORM SURGE WILL GRADUALLY DECREASE ALONG THE LOWER FLORIDA KEYS TONIGHT. A STORM SURGE OF 2 TO 4 FEET IS POSSIBLE ALONG THE SOUTHWESTERN COAST OF FLORIDA TONIGHT AND SUNDAY MORNING. A STORM SURGE OF 10 TO 12 FEET IS POSSIBLE NEAR AND TO THE EAST OF WHERE THE CENTER OF DENNIS CROSSES THE NORTHEASTERN GULF COAST ON SUNDAY. ISOLATED TORNADOES WILL BE POSSIBLE OVER CENTRAL AND SOUTHERN FLORIDA PENINSULA AND THE FLORIDA KEYS TODAY...AND ACROSS THE FLORIDA PANHANDLE TONIGHT AND SUNDAY. REPEATING THE 5 PM EDT POSITION...25.7 N... 84.6 W. MOVEMENT TOWARD...NORTHWEST NEAR 14 MPH. MAXIMUM SUSTAINED WINDS...105 MPH. MINIMUM CENTRAL PRESSURE... 955 MB. INTERMEDIATE ADVISORIES WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 7 PM EDT AND 9 PM EDT FOLLOWED BY THE NEXT COMPLETE ADVISORY AT 11 PM EDT. FORECASTER STEWART |
