000 WTNT33 KNHC 082350 TCPAT3 BULLETIN TROPICAL STORM CHANTAL INTERMEDIATE ADVISORY NUMBER 4A NWS NATIONAL HURRICANE CENTER MIAMI FL AL032013 800 PM AST MON JUL 08 2013 ...RECONNAISSANCE AIRCRAFT FINDS CHANTAL A LITTLE STRONGER... SUMMARY OF 800 PM AST...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...11.8N 55.0W ABOUT 320 MI...515 KM ESE OF BARBADOS MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 26 MPH...43 KM/H MINIMUM CENTRAL PRESSURE...1010 MB...29.82 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * BARBADOS * DOMINICA * ST. LUCIA * MARTINIQUE * GUADELOUPE * PUERTO RICO A TROPICAL STORM WATCH IS IN EFFECT FOR... * ST. VINCENT * U.S. VIRGIN ISLANDS * VIEQUES AND CULEBRA * SOUTHERN COAST OF DOMINICAN REPUBLIC FROM CABO ENGANO TO THE BORDER WITH HAITI ADDITIONAL WATCHES AND WARNINGS COULD BE REQUIRED FOR A PORTION OF THE NORTHERN LEEWARD ISLANDS LATER TONIGHT. INTERESTS IN THIS AREA SHOULD MONITOR THE PROGRESS OF CHANTAL. INTERESTS IN HAITI AND EASTERN CUBA SHOULD ALSO MONITOR THE PROGRESS OF CHANTAL. 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 THE UNITED STATES...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 800 PM AST...0000 UTC...THE CENTER OF TROPICAL STORM CHANTAL WAS LOCATED NEAR LATITUDE 11.8 NORTH...LONGITUDE 55.0 WEST. CHANTAL IS MOVING TOWARD THE WEST-NORTHWEST NEAR 26 MPH...43 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS. ON THE FORECAST TRACK...THE CENTER OF CHANTAL SHOULD REACH THE LESSER ANTILLES EARLY TUESDAY...MOVE INTO THE EASTERN CARIBBEAN SEA LATER ON TUESDAY...AND BE NEAR THE DOMINICAN REPUBLIC ON WEDNESDAY. DATA FROM AN AIR FORCE RESERVE HURRICANE HUNTER AIRCRAFT INDICATE THAT THE MAXIMUM SUSTAINED WINDS ARE NEAR 50 MPH...85 KM/H...WITH HIGHER GUSTS. SOME STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS. RECONNAISSANCE AIRCRAFT DATA INDICATE THAT TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD MORE THAN PREVIOUSLY ESTIMATED. THESE WINDS EXTEND OUTWARD UP TO 90 MILES...150 KM...MAINLY TO THE NORTH OF THE CENTER. THE LATEST MINIMUM CENTRAL PRESSURE MEASURED BY RECONNAISSANCE AIRCRAFT WAS 1010 MB...29.82 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO REACH PORTIONS OF THE WINDWARD ISLANDS BY TUESDAY MORNING...AND REACH PUERTO RICO TUESDAY NIGHT OR EARLY WEDNESDAY. TROPICAL STORM CONDITIONS ARE POSSIBLE IN THE DOMINICAN REPUBLIC BY WEDNESDAY MORNING. STORM SURGE...A STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS IN THE LEEWARD ISLANDS... WINDWARD ISLANDS...AND PUERTO RICO. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY DANGEROUS WAVES. RAINFALL...CHANTAL IS EXPECTED TO PRODUCE RAIN ACCUMULATIONS OF 2 TO 4 INCHES OVER THE LEEWARD AND WINDWARD ISLANDS...WITH MAXIMUM AMOUNTS OF 6 INCHES POSSIBLE. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...1100 PM AST. $$ FORECASTER BROWN/KIMBERLAIN