000 WTNT31 KNHC 300242 TCPAT1 BULLETIN TROPICAL STORM TOMAS ADVISORY NUMBER 3 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL212010 1100 PM AST FRI OCT 29 2010 ...TOMAS NEARING BARBADOS...HURRICANE WARNINGS ISSUED FOR PORTIONS OF THE WINDWARD ISLANDS... SUMMARY OF 1100 PM AST...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...12.2N 58.4W ABOUT 100 MI...165 KM SE OF BARBADOS ABOUT 205 MI...325 KM ESE OF ST. VINCENT MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/HR PRESENT MOVEMENT...WNW OR 300 DEGREES AT 16 MPH...26 KM/HR MINIMUM CENTRAL PRESSURE...997 MB...29.44 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE GOVERNMENT OF BARBADOS HAS CHANGED THE TROPICAL STORM WARNING FOR BARBADOS AND ST. VINCENT AND THE GRENADINES TO A HURRICANE WARNING. THE GOVERNMENT OF ST. LUCIA HAS CHANGED THE TROPICAL STORM WARNING FOR ST. LUCIA TO A HURRICANE WARNING. THE GOVERNMENT OF FRANCE HAS CHANGED THE TROPICAL STORM WARNING FOR MARTINIQUE TO A HURRICANE WARNING. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * BARBADOS * ST. VINCENT AND THE GRENADINES * ST. LUCIA * MARTINIQUE A TROPICAL STORM WARNING IS IN EFFECT FOR... * TRINIDAD AND TOBAGO * GRENADA * DOMINICA A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE NEARING COMPLETION. 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 1100 PM AST...0300 UTC...THE CENTER OF TROPICAL STORM TOMAS WAS LOCATED NEAR LATITUDE 12.2 NORTH...LONGITUDE 58.4 WEST. TOMAS IS MOVING TOWARD THE WEST-NORTHWEST NEAR 16 MPH...26 KM/HR. THIS GENERAL MOTION IS EXPECTED TO CONTINUE THROUGH EARLY SUNDAY... FOLLOWED BY A TURN TOWARD THE WEST AND SOME DECREASE IN FORWARD SPEED LATE SUNDAY. ON THE FORECAST TRACK...THE CENTER OF TOMAS WILL APPROACH BARBADOS OVERNIGHT AND MOVE ACROSS THE REMAINDER OF THE WINDWARD ISLANDS ON SATURDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 65 MPH...100 KM/HR...WITH HIGHER GUSTS. STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS...AND TOMAS COULD BECOME A HURRICANE BY SATURDAY MORNING AS IT PASSES NEAR BARBADOS AND MOVES ACROSS THE OTHER WINDWARD ISLANDS. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM FROM THE CENTER. BARBADOS REPORTED A WIND GUST TO 55 MPH...89 KM/HR...IN A SQUALL EARLIER THIS EVENING. ESTIMATED MINIMUM CENTRAL PRESSURE IS 997 MB...29.44 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM FORCE WINDS WILL BEGIN TO SPREAD ACROSS BARBADOS SOON AND THE REMAINDER OF THE WARNING AREA EARLY SATURDAY. HURRICANE FORCE WINDS ARE EXPECTED ON BARBADOS EARLY SATURDAY AND WITHIN THE REMAINDER OF THE HURRICANE WARNING AREA LATER SATURDAY MORNING. RAINFALL...TOMAS IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 3 TO 5 INCHES...WITH POSSIBLE ISOLATED MAXIMUM AMOUNTS OF 8 INCHES...ACROSS PORTIONS OF THE WINDWARD AND SOUTHERN LEEWARD ISLANDS. STORM SURGE...A DANGEROUS STORM SURGE WILL RAISE WATER LEVELS BY AS MUCH AS 1 TO 3 FEET ABOVE NORMAL TIDE LEVELS WITHIN AREAS OF ONSHORE FLOW. THE SURGE WILL BE ACCOMPANIED BY LARGE AND POTENTIALLY DESTRUCTIVE WAVES. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...200 AM AST. NEXT COMPLETE ADVISORY...500 AM AST. $$ FORECASTER BERG/BROWN