WTPA33 PHFO 221956 CCA TCPCP3 BULLETIN TROPICAL STORM DARBY INTERMEDIATE ADVISORY NUMBER 44A NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP052016 800 AM HST FRI JUL 22 2016 ...FIRST HURRICANE HUNTER MISSION HEADING INTO DARBY... SUMMARY OF 800 AM HST...1800 UTC...INFORMATION ---------------------------------------------- LOCATION...18.6N 150.5W ABOUT 305 MI...490 KM ESE OF HILO HAWAII ABOUT 520 MI...835 KM ESE OF HONOLULU HAWAII MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H PRESENT MOVEMENT...W OR 270 DEGREES AT 12 MPH...19 KM/H MINIMUM CENTRAL PRESSURE...999 MB...29.50 INCHES WATCHES AND WARNINGS -------------------- CHANGES WITH THIS ADVISORY: None. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm warning is in effect for... * Hawaii County A Tropical Storm watch is in effect for... * Maui County, including the islands of Maui, Molokai, Lanai and Kahoolawe A Tropical Storm warning means that tropical storm conditions are expected within the warning area within 36 hours. A Tropical Storm watch means that tropical storm conditions are possible within the watch area within 48 hours. Interests elsewhere in the Hawaiian Islands should monitor the progress of Darby. Watches may be required for additional islands later tonight or Saturday. DISCUSSION AND 48-HOUR OUTLOOK ------------------------------ At 800 AM HST (1800 UTC), the center of Tropical Storm Darby was located near latitude 18.6 North, longitude 150.5 West. Darby is moving toward the west near 12 mph (19 km/h) and this motion is expected to continue through Saturday, then become northwestward Sunday. On the forecast track, the center of Darby is forecast to pass near the Big Island on Saturday and Maui on Saturday night. Maximum sustained winds are near 60 mph (95 km/h) with higher gusts. Little change in strength is forecast through Sunday. Tropical-storm-force winds extend outward up to 115 miles (185 km) from the center. The estimated minimum central pressure is 999 mb (29.50 inches). HAZARDS AFFECTING LAND ---------------------- WIND: Tropical-storm-force winds are expected over the Big Island and starting late tonight, and are possible over portions of Maui county on Saturday. SURF: Swells generated by Darby are expected to impact the Hawaiian Islands over the next couple of days, possibly becoming damaging along some coastlines today and Saturday. RAINFALL: Storm total rainfall of 10 to 15 inches with locally higher amounts...could cause life-threatening flash floods as well as rockslides and mudslides. NEXT ADVISORY ------------- Next complete advisory at 1100 AM HST. $$ Forecaster Kodama