000 WTPZ32 KNHC 292340 TCPEP2 BULLETIN TROPICAL STORM BARBARA INTERMEDIATE ADVISORY NUMBER 6A NWS NATIONAL HURRICANE CENTER MIAMI FL EP022013 500 PM PDT WED MAY 29 2013 ...BARBARA WEAKENS TO A TROPICAL STORM OVER SOUTHEASTERN MEXICO... ...HEAVY RAINFALL AND FLOODING STILL THE MAIN THREATS... SUMMARY OF 500 PM PDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...16.7N 93.9W ABOUT 30 MI...50 KM N OF TONALA MEXICO ABOUT 50 MI...80 KM W OF TUXTLA GUTIERREZ MEXICO MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...NNE OR 30 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...993 MB...29.32 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... THE GOVERNMENT OF MEXICO HAS CHANGED THE HURRICANE WARNING FROM SALINA CRUZ TO BARRA DE TONALA TO A TROPICAL STORM WARNING. THE HURRICANE WARNING FROM PUERTO ANGEL TO SALINA CRUZ HAS BEEN DISCONTINUED. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FROM... * SALINA CRUZ TO BOCA DE PIJIJIAPAN MEXICO. FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 500 PM PDT...0000 UTC...THE CENTER OF TROPICAL STORM BARBARA WAS LOCATED INLAND OVER SOUTHEASTERN MEXICO NEAR LATITUDE 16.7 NORTH... LONGITUDE 93.9 WEST. BARBARA IS MOVING TOWARD THE NORTH-NORTHEAST NEAR 9 MPH...15 KM/H...AND A TURN TOWARD THE NORTH IS EXPECTED TONIGHT. ON THE FORECAST TRACK...THE CENTER WILL CONTINUE TO MOVE OVER SOUTHEASTERN MEXICO TONIGHT AND EARLY THURSDAY...AND INTO THE EXTREME SOUTHWESTERN GULF OF MEXICO AS A REMNANT LOW LATER ON THURSDAY. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 60 MPH...95 KM/H... WITH HIGHER GUSTS. RAPID WEAKENING WILL CONTINUE TONIGHT AND EARLY THURSDAY...AND BARBARA IS EXPECTED TO DISSIPATE WITHIN THE NEXT DAY OR SO. TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 70 MILES...110 KM FROM THE CENTER. AN AUTOMATED MEXICAN NAVY OBSERVING STATION AT PAREDON IN CHIAPAS MEASURED A PEAK GUST TO 75 MPH...120 KM/H SEVERAL HOURS AGO. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 993 MB...29.32 INCHES. HAZARDS AFFECTING LAND ---------------------- RAINFALL...BARBARA IS EXPECTED TO PRODUCE TOTAL RAIN ACCUMULATIONS OF 6 TO 10 INCHES OVER EASTERN OAXACA AND WESTERN CHIAPAS MEXICO... WITH ISOLATED MAXIMUM AMOUNTS OF 20 INCHES POSSIBLE IN SOUTHEASTERN OAXACA. THESE RAINS COULD CAUSE LIFE-THREATENING FLASH FLOODS AND MUD SLIDES. WIND...TROPICAL STORM CONDITIONS ARE AFFECTING THE COAST WITHIN THE WARNING AREA. THESE CONDITIONS WILL LIKELY CONTINUE OVER THE NEXT FEW HOURS. STORM SURGE...WATER LEVELS ALONG THE COAST OF THE GULF OF TEHUANTEPEC SHOULD BE SUBSIDING DURING THE NEXT SEVERAL HOURS. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...800 PM PDT. $$ FORECASTER BERG/BEVEN