Tropical Storm Darby moving over slopes of Mauna Loa

At 500 PM HST (0300 UTC), the center of Tropical Storm Darby was located near latitude 19.3 North, longitude 155.8 West. Darby is moving toward the west near 10 mph (17 km/h). Darby is forecast to make a turn toward the northwest later tonight and continue moving northwestward over the next 48 hours, with little change in forward speed.

Maximum sustained winds are near 40 mph (65 km/h) with higher gusts. Slight weakening is forecast during the next 48 hours.

Tropical-storm-force winds extend outward up to 70 miles (110 km) from the center. Sustained winds of 43 mph and wind gusts to 61 mph were been reported in Kohala Ranch on the Big Island earlier this afternoon.

The estimated minimum central pressure is 1006 mb (29.71 inches)

tsdarby_SAT5pm

SUMMARY OF 500 PM HST…0300 UTC…INFORMATION

At 5:00 PM HST, the center of Tropical Storm Darby  was located at 19.3N 155.8W.
35 miles SSW of Bradshaw AAF
55 miles WSW of Hilo
35 miles SSE of Kailua-Kona
30 miles NNW of South Point

A Tropical Storm Warning has been issued for Kauai County, including the islands of Kauai and Niihau.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT:

A Tropical Storm Warning is in effect for…
* Hawaii County
* Maui County, including the islands of Maui, Molokai, Lanai and Kahoolawe
* Oahu
* Kauai County, including the islands of Kauai and Niihau

A Tropical Storm Warning means that tropical storm conditions are expected within the warning area within 36 hours. In this case, tropical storm conditions are occurring over portions of the Big Island, and are expected over Maui County and Oahu within 24 hours.