ZCZC HFOTCPCP1 ALL TTAA00 PHFO DDHHMM BULLETIN Hurricane Walaka Advisory Number 21 NWS Central Pacific Hurricane Center Honolulu HI CP012018 1100 AM HST Thu Oct 04 2018 ...HURRICANE WALAKA MOVING NORTHWARD AND WEAKENING... SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION ----------------------------------------------- LOCATION...28.8N 166.3W ABOUT 340 MI...545 KM N OF FRENCH FRIGATE SHOALS ABOUT 735 MI...1185 KM NW OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H PRESENT MOVEMENT...N OR 355 DEGREES AT 22 MPH...35 KM/H MINIMUM CENTRAL PRESSURE...972 MB...28.71 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: The Tropical Storm Warning has been discontinued for Papahanaumokuakea Marine National Monument from Nihoa to French Frigate Shoals to Maro Reef. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: None. DISCUSSION AND OUTLOOK ---------------------- At 1100 AM HST (2100 UTC), the center of Hurricane Walaka was located near latitude 28.8 North, longitude 166.3 West. Walaka is moving toward the north near 22 mph (35 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 90 mph (150 km/h) with higher gusts. Steady weakening is forecast during the next 48 hours. 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 972 mb (28.71 inches). HAZARDS AFFECTING LAND ---------------------- SURF: Large surf generated by the broad wind field associated with Walaka will continue to impact most of the Papahanaumokuakea Marine National Monument today, and swells will reach as far east as the main Hawaiian Islands. NEXT ADVISORY ------------- Next complete advisory at 500 PM HST. $$ Forecaster Wroe NNNN