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| #356227 (Received by flhurricane at: 10:34 PM 29.Jun.2010) TCPAT1 BULLETIN HURRICANE ALEX ADVISORY NUMBER 18 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL012010 1000 PM CDT TUE JUN 29 2010 ...ALEX BECOMES THE FIRST HURRICANE OF THE 2010 SEASON AND THE FIRST JUNE ATLANTIC HURRICANE SINCE 1995... SUMMARY OF 1000 PM CDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...23.1N 94.8W ABOUT 195 MI...315 KM ESE OF LA PESCA MEXICO ABOUT 255 MI...415 KM SE OF BROWNSVILLE TEXAS MAXIMUM SUSTAINED WINDS...75 MPH...120 KM/HR PRESENT MOVEMENT...W OR 280 DEGREES AT 9 MPH...15 KM/HR MINIMUM CENTRAL PRESSURE...973 MB...28.73 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * THE COAST OF TEXAS SOUTH OF BAFFIN BAY TO THE MOUTH OF THE RIO GRANDE * THE COAST OF MEXICO FROM THE MOUTH OF THE RIO GRANDE TO LA CRUZ A TROPICAL STORM WARNING IN IN EFFECT FOR... * THE COAST OF TEXAS FROM BAFFIN BAY TO PORT OCONNOR * THE COAST OF MEXICO SOUTH OF LA CRUZ TO CABO ROJO FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED STATES...INCLUDING POSSIBLE INLAND WATCHES AND WARNINGS...PLEASE MONITOR PRODUCTS ISSUED BY YOUR LOCAL NATIONAL WEATHER SERVICE FORECAST OFFICE. FOR STORM INFORMATION SPECIFIC TO YOUR AREA OUTSIDE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1000 PM CDT...0300 UTC...THE CENTER OF HURRICANE ALEX WAS LOCATED NEAR LATITUDE 23.1 NORTH...LONGITUDE 94.8 WEST. ALEX HAS MOVED MOSTLY WESTWARD NEAR 9 MPH...15 KM/HR...OVER THE PAST FEW HOURS BUT A GENERAL WEST-NORTHWESTWARD MOTION IS EXPECTED OVER THE NEXT 24 TO 48 HOURS. ON THE FORECAST TRACK...THE CENTER OF ALEX WILL APPROACH THE COAST OF NORTHEASTERN MEXICO OR SOUTHERN TEXAS ON WEDNESDAY AND MAKE LANDFALL IN THE HURRICANE WARNING AREA LATE WEDNESDAY OR WEDNESDAY NIGHT. MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 75 MPH...120 KM/HR...WITH HIGHER GUSTS. ALEX IS A CATEGORY ONE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. ADDITIONAL STRENGTHENING IS FORECAST PRIOR TO LANDFALL. ALEX WILL BEGIN TO WEAKEN AFTER ITS CENTER CROSSES THE COASTLINE. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 15 MILES...30 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 175 MILES...280 KM. THE MINIMUM CENTRAL PRESSURE REPORTED BY AN AIR FORCE HURRICANE HUNTER PLANE WAS 973 MB...28.73 INCHES. HAZARDS AFFECTING LAND ---------------------- RAINFALL...ALEX IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 6 TO 12 INCHES OVER PORTIONS OF NORTHEASTERN MEXICO AND SOUTHERN TEXAS...WITH ISOLATED MAXIMUM AMOUNTS OF 20 INCHES. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES... ESPECIALLY IN MOUNTAINOUS TERRAIN. RAINBANDS ASSOCIATED WITH ALEX ARE SPREADING ONSHORE IN NORTHEASTERN MEXICO AND SOUTHERN TEXAS. WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO REACH THE COAST WITHIN THE HURRICANE AND TROPICAL STORM WARNING AREAS BEGINNING LATE TONIGHT OR EARLY WEDNESDAY...MAKING OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. STORM SURGE...A DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 3 TO 5 FEET ABOVE GROUND LEVEL ALONG THE IMMEDIATE COAST TO THE NORTH OF WHERE THE CENTER MAKES LANDFALL. THE SURGE COULD PENETRATE INLAND AS FAR AS SEVERAL MILES FROM THE SHORE WITH DEPTH GENERALLY DECREASING AS THE WATER MOVES INLAND. NEAR THE COAST... THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES. TORNADOES...ISOLATED TORNADOES ARE POSSIBLE OVER PORTIONS OF EXTREME SOUTHERN TEXAS ON WEDNESDAY. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...100 AM CDT. NEXT COMPLETE ADVISORY...400 AM CDT. $$ FORECASTER PASCH/BERG |
