000
WTPA33 PHFO 231459
TCPCP3

BULLETIN
TROPICAL STORM DARBY ADVISORY NUMBER 48
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP052016
500 AM HST SAT JUL 23 2016

...DARBY THREATENING THE BIG ISLAND...


SUMMARY OF 500 AM HST...1500 UTC...INFORMATION
----------------------------------------------
LOCATION...18.8N 153.9W
ABOUT 100 MI...160 KM SE OF HILO HAWAII
ABOUT 310 MI...500 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 9 MPH...15 KM/H
MINIMUM CENTRAL PRESSURE...1002 MB...29.59 INCHES


WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:

A Tropical Storm Warning has been issued for Oahu.

A Tropical Storm Watch has been issued for Kauai.

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

A Tropical Storm Watch is in effect for...
* Kauai

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 and warnings may be required for
additional islands later today.

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 500 AM HST (1500 UTC), the center of Tropical Storm Darby was
located near latitude 18.8 North, longitude 153.9 West. 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).


HAZARDS AFFECTING LAND
----------------------
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 ADVISORY
-------------
Next intermediate advisory at 800 AM HST.
Next complete advisory at 1100 AM HST.

$$
Forecaster Powell