ZCZC HFOTCPCP2 ALL TTAA00 PHFO DDHHMM BULLETIN Hurricane Lane Advisory Number 31 NWS Central Pacific Hurricane Center Honolulu HI EP142018 1100 PM HST Tue Aug 21 2018 ...POWERFUL HURRICANE LANE MOVING WEST NORTHWESTWARD TOWARD THE MAIN HAWAIIAN ISLANDS... SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION ----------------------------------------------- LOCATION...14.7N 154.5W ABOUT 350 MI...565 KM SSE OF KAILUA-KONA HAWAII ABOUT 505 MI...815 KM SSE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...160 MPH...260 KM/H PRESENT MOVEMENT...WNW OR 285 DEGREES AT 9 MPH...15 KM/H MINIMUM CENTRAL PRESSURE...930 MB...27.47 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Hurricane Warning is in effect for... * Hawaii County A Hurricane Watch is in effect for... * Maui County...including the islands of Maui, Lanai, Molokai and Kahoolawe * Oahu A Hurricane Warning means that hurricane conditions are expected somewhere within the warning area. A warning is typically issued 36 hours before the anticipated first occurrence of tropical-storm- force winds, conditions that make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Hurricane Watch means that hurricane conditions are possible within the watch area. A watch is typically issued 48 hours before the anticipated first occurrence of tropical-storm-force winds, conditions that make outside preparations difficult or dangerous. Interests elsewhere in the main Hawaiian Islands, and across the Northwestern Hawaiian Islands, should continue to closely monitor the progress of Hurricane Lane. Additional Tropical Storm or Hurricane Watches or Warnings may be issued tonight or Wednesday. For storm information specific to your area, please monitor products issued by the National Weather Service office in Honolulu Hawaii. DISCUSSION AND OUTLOOK ---------------------- At 1100 PM HST (0900 UTC), the center of Hurricane Lane was located near latitude 14.7 North, longitude 154.5 West. Lane is moving toward the west-northwest near 9 mph (15 km/h) and this motion is expected to continue tonight. A turn toward the northwest is expected on Wednesday, followed by a turn to the north-northwest on Thursday. On the forecast track, the center of Lane will move very close to or over the main Hawaiian Islands from Thursday through Saturday. Maximum sustained winds are near 160 mph (260 km/h) with higher gusts. Lane is a category 5 hurricane on the Saffir-Simpson Hurricane Wind Scale. Slow weakening is forecast during the next 48 hours, but Lane is forecast to remain a dangerous hurricane as it draws closer to the Hawaiian Islands. Hurricane-force winds extend outward up to 40 miles (65 km) from the center and tropical-storm-force winds extend outward up to 140 miles (220 km). The estimated minimum central pressure is 930 mb (27.47 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical storm conditions are expected within the Hurricane Warning area beginning late Wednesday night into early Thursday morning, with hurricane conditions expected somewhere within the warning area on Thursday. Tropical storm conditions are possible within the Hurricane Watch area beginning Thursday into Thursday night, with hurricane conditions possible late Thursday night into Friday. RAINFALL: Excessive rainfall associated with Lane is expected to affect portions of the Hawaiian Islands from late Wednesday into the weekend, leading to flash flooding and landslides. Lane is expected to produce total rain accumulations of 10 to 15 inches with isolated amounts greater than 20 inches over the Hawaiian Islands. SURF: Large swells generated by Lane will impact the Hawaiian Islands, beginning tonight on the Big Island, spreading across the remainder of the island chain on Wednesday. These swells will produce large and potentially damaging surf along exposed west, south and east facing shorelines. NEXT ADVISORY ------------- Next intermediate advisory at 200 AM HST. Next complete advisory at 500 AM HST. $$ Forecaster Powell NNNN