000 WTPZ34 KNHC 262039 TCPEP4 BULLETIN HURRICANE HILARY ADVISORY NUMBER 23 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092011 200 PM PDT MON SEP 26 2011 ...HILARY STRENGTHENS TO A CATEGORY FOUR HURRICANE AGAIN... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...16.6N 114.0W ABOUT 130 MI...210 KM SSE OF CLARION ISLAND ABOUT 510 MI...820 KM SSW OF THE SOUTHERN TIP OF BAJA CALIFORNIA MAXIMUM SUSTAINED WINDS...135 MPH...215 KM/H PRESENT MOVEMENT...W OR 265 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...949 MB...28.02 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 EYE OF HURRICANE HILARY WAS LOCATED NEAR LATITUDE 16.6 NORTH...LONGITUDE 114.0 WEST. HILARY IS MOVING TOWARD THE WEST NEAR 10 MPH...17 KM/H. THIS GENERAL TRACK IS EXPECTED TO CONTINUE FOR THE NEXT DAY OR SO WITH A DECREASE IN FORWARD SPEED. A TURN TOWARD THE NORTHWEST IS EXPECTED BY TUESDAY NIGHT...FOLLOWED BY A TURN TOWARD THE NORTH ON WEDNESDAY. SATELLITE IMAGERY INDICATES THAT MAXIMUM SUSTAINED WINDS HAVE INCREASED TO NEAR 135 MPH...215 KM/H...WITH HIGHER GUSTS. HILARY IS A CATEGORY FOUR HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. SOME FLUCTUATIONS IN STRENGTH ARE POSSIBLE DURING THE NEXT DAY OR SO...BUT OVERALL GRADUAL WEAKENING IS EXPECTED DURING THE NEXT 48 HOURS. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 35 MILES...55 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 105 MILES...165 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 949 MB...28.02 INCHES. HAZARDS AFFECTING LAND ---------------------- SURF...SWELLS GENERATED BY HILARY ARE AFFECTING PORTIONS OF THE COAST OF SOUTHWESTERN MEXICO AND SOUTHERN BAJA CALIFORNIA. THESE SWELLS ARE LIKELY CAUSING LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. NEXT ADVISORY ------------- NEXT COMPLETE ADVISORY...800 PM PDT. $$ FORECASTER BRENNAN