000 WTPZ34 KNHC 222032 TCPEP4 BULLETIN HURRICANE HILARY ADVISORY NUMBER 7 NWS NATIONAL HURRICANE CENTER MIAMI FL EP092011 200 PM PDT THU SEP 22 2011 ...HILARY RAPIDLY STRENGTHENS TO A CATEGORY TWO HURRICANE... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...15.6N 99.8W ABOUT 90 MI...145 KM S OF ACAPULCO MEXICO MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WNW OR 300 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...973 MB...28.73 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY... NONE. SUMMARY OF WATCHES AND WARNINGS IN EFFECT... A TROPICAL STORM WARNING IS IN EFFECT FOR... * LAGUNAS DE CHACAHUA MEXICO WESTWARD TO PUNTA SAN TELMO A TROPICAL STORM WATCH IS IN EFFECT FOR... * WEST OF PUNTA SAN TELMO TO MANZANILLO FOR STORM INFORMATION SPECIFIC TO YOUR AREA...PLEASE MONITOR PRODUCTS ISSUED BY YOUR NATIONAL METEOROLOGICAL SERVICE. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ AT 200 PM PDT...2100 UTC...THE EYE OF HURRICANE HILARY WAS LOCATED NEAR LATITUDE 15.6 NORTH...LONGITUDE 99.8 WEST. HILARY IS MOVING TOWARD THE WEST-NORTHWEST NEAR 10 MPH...17 KM/H...AND THIS GENERAL MOTION IS EXPECTED TO CONTINUE DURING THE NEXT 24 TO 48 HOURS. ON THE FORECAST TRACK THE CORE OF HILARY WILL CONTINUE TO MOVE PARALLEL TO THE SOUTHWEST COAST OF MEXICO...BUT ANY DEVIATION TO THE NORTH OF THE TRACK COULD BRING STRONGER WINDS TO THE COAST. MAXIMUM SUSTAINED WINDS ARE NEAR 105 MPH...165 KM/H...WITH HIGHER GUSTS. HILARY IS A CATEGORY TWO HURRICANE ON THE SAFFIR-SIMPSON HURRICANE WIND SCALE. ADDITIONAL STRENGTHENING IS EXPECTED AND HILARY COULD BECOME A MAJOR HURRICANE BY TONIGHT. HILARY IS A SMALL TROPICAL CYCLONE. HURRICANE FORCE WINDS EXTEND OUTWARD UP TO 25 MILES...35 KM...FROM THE CENTER...AND TROPICAL STORM FORCE WINDS EXTEND OUTWARD UP TO 80 MILES...130 KM. ESTIMATED MINIMUM CENTRAL PRESSURE IS 973 MB...28.73 INCHES. HAZARDS AFFECTING LAND ---------------------- WIND...TROPICAL STORM FORCE WINDS ARE AFFECTING PORTIONS OF THE COAST WITHIN THE WARNING AREA. THESE WINDS ARE EXPECTED TO SPREAD WESTWARD ALONG THE COAST DURING THE NEXT 24 TO 36 HOURS. RAINFALL...HILARY IS EXPECTED TO PRODUCE RAINFALL AMOUNTS OF 3 TO 5 INCHES ACROSS SOUTHERN GUERRERO AND SOUTHWESTERN OAXACA IN SOUTHERN MEXICO WITH ISOLATED AMOUNTS OF 10 INCHES POSSIBLE. SURF...SWELLS GENERATED BY HILARY ARE AFFECTING PORTIONS OF THE COAST OF SOUTHWESTERN MEXICO. THESE SWELLS ARE LIKELY TO CAUSE LIFE-THREATENING SURF AND RIP CURRENT CONDITIONS. NEXT ADVISORY ------------- NEXT INTERMEDIATE ADVISORY...500 PM PDT. NEXT COMPLETE ADVISORY...800 PM PDT. $$ FORECASTER CANGIALOSI/PASCH