ZCZC MIATCPEP4 ALL TTAA00 KNHC DDHHMM BULLETIN HURRICANE OLAF ADVISORY NUMBER 20 NWS NATIONAL HURRICANE CENTER MIAMI FL EP192015 200 PM PDT MON OCT 19 2015 ...OLAF RAPIDLY STRENGTHENS TO A CATEGORY FOUR HURRICANE... ...EXPECTED TO CROSS INTO THE CENTRAL PACIFIC BASIN TONIGHT... SUMMARY OF 200 PM PDT...2100 UTC...INFORMATION ---------------------------------------------- LOCATION...10.0N 138.7W ABOUT 1280 MI...2065 KM ESE OF HILO HAWAII MAXIMUM SUSTAINED WINDS...130 MPH...215 KM/H PRESENT MOVEMENT...W OR 275 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...954 MB...28.17 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 Olaf was located near latitude 10.0 North, longitude 138.7 West. Olaf is moving toward the west near 12 mph (19 km/h), and this motion is expected to continue through tonight. A turn toward the west-northwest is forecast on Tuesday, followed by a turn toward the northwest on Wednesday. Satellite imagery indicates that maximum sustained winds have increased to near 130 mph (215 km/h) with higher gusts. Olaf is a category 4 hurricane on the Saffir-Simpson Hurricane Wind Scale. Some additional strengthening is forecast tonight. Some fluctuations in intensity are possible on Tuesday and Wednesday. Hurricane-force winds extend outward up to 30 miles (45 km) from the center and tropical-storm-force winds extend outward up to 140 miles (220 km). The estimated minimum central pressure is 954 mb (28.17 inches). HAZARDS AFFECTING LAND ---------------------- None. NEXT ADVISORY ------------- Next complete advisory at 800 PM PDT. $$ Forecaster Brennan NNNN
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