ZCZC MIATCPEP3 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE MIRIAM ADVISORY NUMBER 12 NWS NATIONAL HURRICANE CENTER MIAMI FL EP132012 200 PM PDT MON SEP 24 2012 ...MIRIAM NEARING CLARION ISLAND... ...EXPECTED TO GRADUALLY WEAKEN SOON... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...18.1N 113.5W ABOUT 405 MI...650 KM SW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...120 MPH...195 KM/H PRESENT MOVEMENT...NW OR 305 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES WATCHES AND WARNINGS -------------------- THERE ARE NO COASTAL WATCHES OR WARNINGS IN EFFECT. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 200 PM PDT...2100 UTC...THE CENTER OF HURRICANE MIRIAM WAS LOCATED NEAR LATITUDE 18.1 NORTH...LONGITUDE 113.5 WEST. MIRIAM IS MOVING TOWARD THE NORTHWEST NEAR 9 MPH...15 KM/H. THIS MOTION WITH A DECREASE IN FORWARD SPEED IS EXPECTED DURING THE NEXT 24 HOURS... FOLLOWED BY A GRADUAL TURN TOWARD THE NORTH BY WEDNESDAY. MAXIMUM SUSTAINED WINDS REMAIN NEAR 120 MPH...195 KM/H...WITH HIGHER GUSTS. MIRIAM IS A CATEGORY THREE HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME WEAKENING IS FORECAST DURING THE NEXT 48 HOURS. HURRICANE-FORCE WINDS EXTEND OUTWARD UP TO 30 MILES...45 KM...FROM THE CENTER...AND TROPICAL-STORM-FORCE WINDS EXTEND OUTWARD UP TO 125 MILES...205 KM. AN AUTOMATED OBSERVING SITE ON CLARION ISLAND RECENTLY REPORTED A WIND GUST OF 43 MPH...69 KM/H. THE ESTIMATED MINIMUM CENTRAL PRESSURE IS 960 MB...28.35 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...SWELLS GENERATED BY MIRIAM WILL AFFECT THE SOUTH AND WEST COASTS OF THE SOUTHERN BAJA PENINSULA DURING THE NEXT COUPLE OF DAYS. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. PLEASE CONSULT PRODUCTS FROM YOUR LOCAL WEATHER OFFICE. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...800 PM PDT. $$ FORECASTER KIMBERLAIN NNNN
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Page last modified: Monday, 31-Dec-2012 12:10:37 UTC