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BULLETIN
TROPICAL STORM DARBY ADVISORY NUMBER  47
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP052016
1100 PM HST FRI JUL 22 2016
 
...DARBY EXPECTED TO REACH THE BIG ISLAND SATURDAY...
 
 
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
-----------------------------------------------
LOCATION...18.8N 153.0W
ABOUT 150 MI...240 KM ESE OF HILO HAWAII
ABOUT 360 MI...580 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...60 MPH...95 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...1000 MB...29.53 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
* Maui County, including the islands of Maui, Molokai, Lanai and
Kahoolawe
 
A Tropical Storm Watch is in effect for...
* Oahu
 
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 tonight or Saturday.
 
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 1100 PM HST (0900 UTC), the center of Tropical Storm Darby was
located near latitude 18.8 North, longitude 153.0 West. Darby is
moving toward the west near 10 mph (17 km/h). Darby's forward
motion is expected to slow slightly Saturday followed by a turn
toward the northwest Saturday night. On the forecast track, the
center of Darby is forecast to pass over the Big Island on
Saturday, and Maui on Saturday night.
 
Maximum sustained winds are near 60 mph (95 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 1000 mb (29.53 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical storm force winds are expected over the Big Island
starting late tonight, and over portions of Maui County on
Saturday. Tropical storm force winds are possible over Oahu
Saturday night or Sunday.
 
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 200 AM HST.
Next complete advisory at 500 AM HST.
 
$$
Forecaster Powell
 
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