ZCZC MIATCPEP4 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE DORA INTERMEDIATE ADVISORY NUMBER 14A NWS NATIONAL HURRICANE CENTER MIAMI FL EP042011 500 PM PDT THU JUL 21 2011 ...DORA WEAKENING BUT STILL A POWERFUL HURRICANE... SUMMARY OF 500 PM PDT...0000 UTC...INFORMATION ---------------------------------------------- LOCATION...18.0N 107.9W ABOUT 220 MI...355 KM SW OF CABO CORRIENTES MEXICO ABOUT 360 MI...585 KM SSE OF CABO SAN LUCAS MEXICO MAXIMUM SUSTAINED WINDS...140 MPH...220 KM/H PRESENT MOVEMENT...NW OR 310 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...935 MB...27.61 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WATCH IS IN EFFECT FOR... * MEXICO FROM AGUA BLANCA TO BUENAVISTA INCLUDING CABO SAN LUCAS A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM 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 500 PM PDT...0000 UTC...THE EYE OF HURRICANE DORA WAS LOCATED NEAR LATITUDE 18.0 NORTH...LONGITUDE 107.9 WEST. DORA IS MOVING TOWARD THE NORTHWEST NEAR 9 MPH...15 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT COUPLE OF DAYS. MAXIMUM SUSTAINED WINDS HAVE DECREASED TO NEAR 140 MPH...220 KM/H...WITH HIGHER GUSTS. DORA IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SLOW WEAKENING IS LIKELY TONIGHT...WITH A MORE RAPID DECREASE IN WINDS FORECAST ON FRIDAY. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 50 MILES...85 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 150 MILES...240 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 935 MB...27.61 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM FORCE WINDS ARE POSSIBLE OVER THE WATCH AREA BY LATE TOMORROW. SURF...LARGE SWELLS GENERATED BY DORA WILL AFFECT THE COAST OF SOUTHWESTERN MEXICO DURING THE NEXT COUPLE OF DAYS. SWELLS WILL BEGIN AFFECTING THE COAST OF THE SOUTHERN PORTION OF BAJA CALIFORNIA LATER TONIGHT. THESE SWELLS WILL LIKELY CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...800 PM PDT. $$ FORECASTER PASCH NNNN
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