000 WTNT35 KNHC 240252 TCPAT5 BULLETIN TROPICAL STORM MATTHEW ADVISORY NUMBER 3 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL152010 1100 PM EDT THU SEP 23 2010 ...MATTHEW STRENGTHENS AS IT HEADS TOWARD CENTRAL AMERICA... SUMMARY OF 1100 PM EDT...0300 UTC...INFORMATION ----------------------------------------------- LOCATION...14.0N 78.4W ABOUT 335 MI...540 KM E OF PUERTO CABEZAS NICARAGUA ABOUT 330 MI...530 KM ESE OF CABO GRACIAS A DIOS ON NIC/HON BORDER MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/HR PRESENT MOVEMENT...W OR 275 DEGREES AT 17 MPH...28 KM/HR MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE GOVERNMENTS OF NICARAGUA AND HONDURAS HAVE CHANGED THE TROPICAL STORM WARNING TO A HURRICANE WARNING FROM PUERTO CABEZAS NICARAGUA TO LIMON HONDURAS. THE GOVERNMENT OF HONDURAS HAS ISSUED A TROPICAL STORM WARNING FROM WEST OF LIMON WESTWARD TO THE GUATEMALA BORDER. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WARNING IS IN EFFECT FOR... * PUERTO CABEZAS NICARAGUA TO LIMON HONDURAS...INCLUDING THE OFFSHORE ISLANDS A TROPICAL STORM WARNING IS IN EFFECT FOR... * LIMON HONDURAS WESTWARD TO THE GUATEMALA BORDER WATCHES OR WARNINGS COULD BE REQUIRED FOR THE COASTS OF GUATEMALA AND BELIZE ON FRIDAY. A HURRICANE WARNING MEANS THAT HURRICANE CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA...IN THIS CASE WITHIN 24 TO 36 HOURS. PREPARATIONS TO PROTECT LIFE AND PROPERTY SHOULD BE RUSHED TO COMPLETION. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 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 EDT...0300 UTC...THE CENTER OF TROPICAL STORM MATTHEW WAS LOCATED NEAR LATITUDE 14.0 NORTH...LONGITUDE 78.4 WEST. MATTHEW IS MOVING TOWARD THE WEST NEAR 17 MPH...28 KM/HR. THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 48 HOURS. ON THE FORECAST TRACK...THE CENTER OF THE MATTHEW IS EXPECTED TO BE NEAR THE NICARAGUA/HONDURAS BORDER LATE FRIDAY...THEN MOVE NEAR OR OVER THE COAST OF NORTHERN HONDURAS ON SATURDAY. MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 45 MPH...75 KM/HR...WITH HIGHER GUSTS. STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS...AND MATTHEW COULD BECOME A HURRICANE LATE FRIDAY. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 45 MILES...75 KM FROM THE CENTER. ESTIMATED MINIMUM CENTRAL PRESSURE IS 1005 MB...29.68 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO FIRST REACH THE COAST WITHIN THE HURRICANE WARNING AREA BY FRIDAY AFTERNOON. HURRICANE CONDITIONS ARE EXPECTED IN THE HURRICANE WARNING AREA BY FRIDAY NIGHT. STORM SURGE...A STORM SURGE IS EXPECTED TO PRODUCE SOME COASTAL FLOODING NEAR AND TO THE NORTH OF WHERE THE CENTER OF MATTHEW MAKES LANDFALL. NEAR THE COAST...THE SURGE WILL BE ACCOMPANIED BY LARGE AND DANGEROUS WAVES. RAINFALL...MATTHEW IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 6 TO 10 INCHES OVER PORTIONS OF NICARAGUA AND HONDURAS...WITH ISOLATED MAXIMUM AMOUNTS OF 15 INCHES POSSIBLE. THESE RAINFALL TOTALS MAY PRODUCE LIFE THREATENING FLASH FLOODS AND MUD SLIDES. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...200 AM EDT. NEXT COMPLETE ADVISORY...500 AM EDT. $$ FORECASTER BROWN