ZCZC HFOTCPCP1 ALL TTAA00 PHFO DDHHMM BULLETIN Hurricane Walaka Advisory Number 20 NWS Central Pacific Hurricane Center Honolulu HI CP012018 500 AM HST Thu Oct 04 2018 ...HURRICANE WALAKA WEAKENING AS IT MOVES NORTH... ...STRONG WINDS AND LARGE SURF CONTINUE ACROSS PARTS OF THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT... SUMMARY OF 500 AM HST...1500 UTC...INFORMATION ---------------------------------------------- LOCATION...26.8N 166.5W ABOUT 200 MI...325 KM N OF FRENCH FRIGATE SHOALS ABOUT 660 MI...1065 KM NW OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...110 MPH...175 KM/H PRESENT MOVEMENT...N OR 0 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...956 MB...28.23 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Hurricane Warning for the Papahanaumokuakea Marine National Monument from French Frigate Shoals to Maro Reef has been changed to a Tropical Storm Warning. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for... * Papahanaumokuakea Marine National Monument from Nihoa to French Frigate Shoals to Maro Reef. A Tropical Storm Warning indicates that tropical storm conditions are occurring within the warning area. DISCUSSION AND OUTLOOK ---------------------- At 500 AM HST (1500 UTC), the center of Hurricane Walaka was located near latitude 26.8 North, longitude 166.5 West. Walaka is moving toward the north near 20 mph (31 km/h). It is expected to slow its forward speed and turn toward the north-northwest later today and tonight. From Friday through early Saturday morning, Walaka is forecast to move toward the north-northeast at a faster forward speed. Maximum sustained winds are near 110 mph (175 km/h) with higher gusts. Gradual weakening is expected to continue during the next couple of days, but Walaka is forecast to remain a hurricane through early Friday morning. Hurricane-force winds extend outward up to 70 miles (110 km) from the center and tropical-storm-force winds extend outward up to 230 miles (370 km). The estimated minimum central pressure is 956 mb (28.23 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions will likely persist into mid-morning across portions of the Papahanaumokuakea Marine National Monument from east of French Frigate Shoals to Gardner Pinnacles. SURF: Large surf generated by the broad wind field associated with Walaka will continue to impact most of the Papahanaumokuakea Marine National Monument today. NEXT ADVISORY ------------- Next intermediate advisory at 800 AM HST. Next complete advisory at 1100 AM HST. $$ Forecaster Houston NNNN
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