ZCZC HFOTCPCP1 ALL TTAA00 PHFO DDHHMM BULLETIN Hurricane Walaka Intermediate Advisory Number 20A NWS Central Pacific Hurricane Center Honolulu HI CP012018 800 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 800 AM HST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...27.9N 166.1W ABOUT 275 MI...440 KM N OF FRENCH FRIGATE SHOALS ABOUT 685 MI...1100 KM NW OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H PRESENT MOVEMENT...N OR 360 DEGREES AT 20 MPH...31 KM/H MINIMUM CENTRAL PRESSURE...960 MB...28.35 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. 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 800 AM HST (1800 UTC), the center of Hurricane Walaka was located near latitude 27.9 North, longitude 166.1 West. Walaka is moving toward the north near 20 mph (31 km/h). A turn toward the north-northwest and a slowing of forward speed is expected today, followed by an acceleration toward the northeast on Friday and Saturday. Maximum sustained winds are near 105 mph (165 km/h) with higher gusts. Gradual weakening is expected to continue during the next couple of days. 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 960 mb (28.35 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 complete advisory at 1100 AM HST. $$ Forecaster Wroe NNNN
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