ZCZC HFOTCPCP5 ALL TTAA00 PHFO DDHHMM BULLETIN HURRICANE MADELINE INTERMEDIATE ADVISORY NUMBER 18A NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP142016 800 PM HST TUE AUG 30 2016 ...MADELINE WEAKENS WHILE TRACKING WEST TOWARDS HAWAII... SUMMARY OF 800 PM HST...0600 UTC...INFORMATION ---------------------------------------------- LOCATION...19.4N 150.9W ABOUT 275 MI...440 KM E OF HILO HAWAII ABOUT 475 MI...765 KM ESE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...95 MPH...150 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 10 MPH...17 KM/H MINIMUM CENTRAL PRESSURE...980 MB...28.94 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 Tropical Storm Watch is in effect for... * Maui County including the islands of Maui Molokai and Lanai 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, which make outside preparations difficult or dangerous. Preparations to protect life and property should be rushed to completion. A Tropical Storm Watch means that tropical storm conditions are possible within the watch area within 48 hours. Interests elsewhere in the main Hawaiian Islands should monitor the progress of Madeline. For storm information specific to your area, please monitor products issued by the National Weather Service office in Honolulu Hawaii. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 PM HST (0600 UTC), the center of Hurricane Madeline was located near latitude 19.4 North, longitude 150.9 West. Madeline is moving toward the west near 10 mph (17 km/h). This motion is expected to continue into the evening, followed by a turn toward the west-southwest tonight through Thursday. On the forecast track, the center of Madeline will pass dangerously close to Hawaii County Wednesday and Wednesday night. Maximum sustained winds are near 95 mph (150 km/h) with higher gusts. Gradual weakening is forecast during the next 48 hours. However, Madeline is expected to be at hurricane strength when it passes near Hawaii County. Hurricane-force winds extend outward up to 25 miles (35 km) from the center and tropical-storm-force winds extend outward up to 125 miles (205 km). The estimated minimum central pressure is 980 mb (28.94 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Hurricane conditions are expected to develop over Hawaii County as early as late Wednesday and continue into early Thursday. Tropical storm conditions are possible over Maui County, including the islands of Maui Molokai and Lanai, on Wednesday into early Thursday. SURF: Swells generated by Madeline are expected to build from east to west across the Hawaiian Islands through tonight, possibly becoming damaging along east facing shorelines of Hawaii County and eastern portions of the Island of Maui Wednesday into Thursday. RAIN: Heavy rains associated with Madeline are expected to reach Hawaii County on Wednesday, and may impact other Hawaiian Islands later Wednesday through Thursday. Madeline is expected to produce total rain accumulations of 5 to 10 inches, with isolated maximum amounts near 15 inches, across Hawaii County, especially over windward portions. Madeline may produce 1 to 3 inches, with isolated maximum amounts up to 4 inches, of rainfall across Maui County. This rainfall may lead to dangerous flash floods and mudslides. STORM SURGE: Depending on the track of Madeline, the combination of storm surge and tides could cause normally dry areas near the coast to become flooded. The water could reach 1 to 3 feet above ground if peak surge were to coincide with high tide. The surge would be accompanied by large damaging surf and can vary over short distances. NEXT ADVISORY ------------- Next complete advisory at 1100 PM HST. $$ Forecaster Birchard NNNN