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000
WTPZ34 KNHC 010246
TCPEP4

BULLETIN
HURRICANE GUILLERMO ADVISORY NUMBER 9
NWS NATIONAL HURRICANE CENTER MIAMI FL EP092015
800 PM PDT FRI JUL 31 2015


...GUILLERMO MOVING RAPIDLY WEST-NORTHWESTWARD...
...NO LONGER STRENGTHENING...



SUMMARY OF 800 PM PDT...0300 UTC...INFORMATION
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LOCATION...13.2N 136.1W ABOUT 1335 MI...2150 KM ESE OF HILO HAWAII MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...970 MB...28.65 INCHES



WATCHES AND WARNINGS
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There are no coastal watches or warnings in effect.



DISCUSSION AND 48-HOUR OUTLOOK
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At 800 PM PDT (0300 UTC), the center of Hurricane Guillermo was located near latitude 13.2 North, longitude 136.1 West. Guillermo is moving toward the west-northwest near 20 mph (31 km/h), and this motion is expected to continue tonight with a gradual decrease in forward speed on Saturday.

Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Guillermo has not strengthened during the past several hours. However, some strengthening is possible tonight and Saturday. Weakening is expected to begin on Sunday.

Hurricane force winds extend outward up to 25 miles (35 km) from the center and tropical storm force winds extend outward up to 115 miles (185 km).

The estimated minimum central pressure is 970 mb (28.65 inches).



HAZARDS AFFECTING LAND
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None



NEXT ADVISORY
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Next complete advisory at 200 AM PDT.

$$ Forecaster Beven/Jacobson

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