000 WTNT35 KNHC 232349 TCPAT5 BULLETIN TROPICAL STORM MATTHEW INTERMEDIATE ADVISORY NUMBER 2A NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL AL152010 800 PM EDT THU SEP 23 2010 ...MATTHEW HEADING TOWARD THE WESTERN CARIBBEAN... SUMMARY OF 800 PM EDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...14.2N 77.7W ABOUT 380 MI...615 KM E OF PUERTO CABEZAS NICARAGUA MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/HR PRESENT MOVEMENT...W OR 280 DEGREES AT 16 MPH...26 KM/HR MINIMUM CENTRAL PRESSURE...1005 MB...29.68 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A HURRICANE WATCH IS IN EFFECT FOR... * PUERTO CABEZAS NICARAGUA TO LIMON HONDURAS...INCLUDING THE OFFSHORE ISLANDS. A TROPICAL STORM WARNING IS IN EFFECT FOR... * PUERTO CABEZAS NICARAGUA TO LIMON HONDURAS...INCLUDING THE OFFSHORE ISLANDS. A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE EXPECTED SOMEWHERE WITHIN THE WARNING AREA WITHIN 36 HOURS. A HURRICANE WATCH MEANS THAT HURRICANE CONDITIONS ARE POSSIBLE WITHIN THE WATCH AREA...IN THIS CASE WITHIN 36 TO 48 HOURS. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 800 PM EDT...0000 UTC...THE CENTER OF TROPICAL STORM MATTHEW WAS LOCATED NEAR LATITUDE 14.2 NORTH...LONGITUDE 77.7 WEST. MATTHEW IS MOVING TOWARD THE WEST NEAR 16 MPH...26 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 OR EARLY SATURDAY MORNING... THEN MOVE NEAR OR OVER THE COAST OF NORTHERN HONDURAS ON SATURDAY. MAXIMUM SUSTAINED WINDS ARE NEAR 40 MPH...65 KM/HR...WITH HIGHER GUSTS. STRENGTHENING IS FORECAST DURING THE NEXT 48 HOURS...AND MATTHEW COULD BECOME A HURRICANE BY SATURDAY. TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM FROM THE CENTER. THE LATEST MINIMUM CENTRAL PRESSURE ESTIMATED FROM DATA FROM A NOAA AIRCRAFT RESEARCH MISSION IS 1005 MB...29.68 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM CONDITIONS ARE EXPECTED TO FIRST REACH THE COAST WITHIN THE WARNING AREA BY FRIDAY NIGHT. HURRICANE CONDITIONS ARE POSSIBLE IN THE WATCH AREA BY SATURDAY. 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 COMPLETE ADVISORY...1100 PM EDT. $$ FORECASTER BROWN