Tropical Storm Darby forecast to pass over Hawaii Island today (5am update)

At 500 AM HST (1500 UTC), the center of Tropical Storm Darby was
located near latitude 18.8 North, longitude 153.9 West or  Darby is
moving toward the west near 9 mph (15 km/h). Darby's forward
motion is expected to slow slightly today followed by a turn
toward the northwest tonight and Sunday. On the forecast track, the
center of Darby is forecast to pass over the Big Island
today and Maui tonight. Darby will approach Oahu on Sunday and
Kauai Monday.
Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.
Some weakening is forecast during the next 48 hours. 
Tropical-storm-force winds extend outward up to 125 miles (205 km)
from the center.
The estimated minimum central pressure is 1002 mb (29.59 inches).
WIND:  Tropical storm force winds are expected over the Big Island
starting this morning, over portions of Maui County this
afternoon and evening, and over Oahu Sunday. Tropical storm force
winds are possible over Kauai Monday.
SURF:  Swells generated by Darby are expected to impact the
Hawaiian Islands over the next couple of days.
RAINFALL:  Storm total rainfall of 10 to 15 inches with locally
higher amounts...could cause life-threatening flash floods as well
as landslides.
Next intermediate advisory at 800 AM HST.
Next complete advisory at 1100 AM HST.