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#437481 (Received by flhurricane at: 10:46 AM 29.Jun.2011) TCPAT1 BULLETIN TROPICAL STORM ARLENE ADVISORY NUMBER 4 NWS NATIONAL HURRICANE CENTER MIAMI FL AL012011 1000 AM CDT WED JUN 29 2011 ...ARLENE GRADUALLY STRENGTHENING...NOW MOVING WESTWARD... SUMMARY OF 1000 AM CDT...1500 UTC...INFORMATION ----------------------------------------------- LOCATION...21.2N 95.7W ABOUT 155 MI...255 KM ESE OF TAMPICO MEXICO ABOUT 110 MI...180 KM E OF TUXPAN MEXICO MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 8 MPH...13 KM/H MINIMUM CENTRAL PRESSURE...1000 MB...29.53 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE GOVERNMENT OF MEXICO HAS ISSUED A HURRICANE WATCH FROM TUXPAN NORTHWARD TO LA CRUZ. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WATCH IS IN EFFECT FOR... * THE COAST OF NORTHEASTERN MEXICO FROM TUXPAN NORTHWARD TO LA CRUZ A TROPICAL STORM WARNING IS IN EFFECT FOR... * THE COAST OF NORTHEASTERN MEXICO FROM BARRA DE NAUTLA NORTHWARD TO BAHIA ALGODONES A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 1000 AM CDT...1500 UTC...THE CENTER OF TROPICAL STORM ARLENE WAS LOCATED NEAR LATITUDE 21.2 NORTH...LONGITUDE 95.7 WEST. ARLENE IS MOVING TOWARD THE WEST NEAR 8 MPH...13 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT DAY OR TWO. ON THE FORECAST TRACK...THE CENTER WILL CROSS THE COAST WITHIN THE WARNING AREA EARLY THURSDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH...85 KM/H...WITH HIGHER GUSTS. STRENGTHENING IS FORECAST...AND ARLENE COULD APPROACH HURRICANE STRENGTH PRIOR TO LANDFALL. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 140 MILES...220 KM FROM THE CENTER. AN AIR FORCE RESERVE UNIT HURRICANE HUNTER AIRCRAFT REPORTED A MINIMUM CENTRAL PRESSURE OF 1000 MB...29.53 INCHES. HAZARDS AFFECTING LAND ---------------------- RAINFALL...ARLENE IS EXPECTED TO PRODUCE TOTAL RAINFALL ACCUMULATIONS OF 4 TO 8 INCHES OVER THE MEXICAN STATES OF TAMAULIPAS...VERACRUZ...EASTERN SAN LUIS POTOSI...AND EASTERN NUEVO LEON...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 15 INCHES OVER MOUNTAINOUS TERRAIN. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO REACH THE COAST WITHIN THE WARNING AREA BY THIS EVENING...WHICH COULD MAKE OUTSIDE PREPARATIONS DIFFICULT OR DANGEROUS. STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 2 TO 4 FEET ABOVE NORMAL TIDE LEVELS ALONG THE IMMEDIATE COAST NEAR AND TO THE NORTH OF WHERE THE CENTER MAKES LANDFALL. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DESTRUCTIVE WAVES. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...100 PM CDT. NEXT COMPLETE ADVISORY...400 PM CDT. $$ FORECASTER PASCH/BEVEN |