ZCZC MIATCPEP5 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE GUILLERMO ADVISORY NUMBER 13 NWS TPC/NATIONAL HURRICANE CENTER MIAMI FL EP102009 200 AM PDT SAT AUG 15 2009 ...MAJOR HURRICANE GUILLERMO MOVING WEST-NORTHWESTWARD...EXPECTED TO BEGIN WEAKENING LATER TODAY... AT 200 AM PDT...0900 UTC...THE CENTER OF HURRICANE GUILLERMO WAS LOCATED NEAR LATITUDE 18.7 NORTH...LONGITUDE 131.9 WEST OR ABOUT 1450 MILES...2330 KM...WEST OF THE SOUTHERN TIP OF BAJA CALIFORNIA. GUILLERMO IS MOVING TOWARD THE WEST-NORTHWEST NEAR 16 MPH...26 KM/HR. THIS GENERAL MOTION IS EXPECTED TO CONTINUE FOR THE NEXT 48 HOURS...WITH A SLIGHT DECREASE IN FORWARD SPEED EXPECTED ON SUNDAY. MAXIMUM SUSTAINED WINDS REMAIN NEAR 115 MPH...185 KM/HR...WITH HIGHER GUSTS. SLOW WEAKENING IS EXPECTED TO BEGIN LATER TODAY... WITH ADDITIONAL WEAKENING EXPECTED ON SUNDAY AS GUILLERMO MOVES OVER COOLER WATERS. 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 960 MB...28.35 INCHES. ...SUMMARY OF 200 AM PDT INFORMATION... LOCATION...18.7N 131.9W MAXIMUM SUSTAINED WINDS...115 MPH PRESENT MOVEMENT...WEST-NORTHWEST OR 285 DEGREES AT 16 MPH MINIMUM CENTRAL PRESSURE...960 MB THE NEXT ADVISORY WILL BE ISSUED BY THE NATIONAL HURRICANE CENTER AT 800 AM PDT. $$ FORECASTER BRENNAN NNNN
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