WTPA33 PHFO 212036
TCPCP3

BULLETIN
TROPICAL STORM DARBY ADVISORY NUMBER  41
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP052016
1100 AM HST THU JUL 21 2016
 
...DARBY EDGING CLOSER TO HAWAII WITH LITTLE CHANGE IN STRENGTH...
 
 
SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...18.6N 146.6W
ABOUT 560 MI...900 KM E OF HILO HAWAII
ABOUT 755 MI...1215 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...65 MPH...100 KM/H
PRESENT MOVEMENT...W OR 260 DEGREES AT 14 MPH...22 KM/H
MINIMUM CENTRAL PRESSURE...998 MB...29.47 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY:
 
A Tropical Storm Watch has been issued for Hawaii County
and Maui County.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT:
 
A Tropical Storm watch is in effect for...
* Hawaii County
* Maui County
 
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.
 
 
DISCUSSION AND 48-HOUR OUTLOOK
------------------------------
At 1100 AM HST (2100 UTC), the center of Tropical Storm Darby was
located near latitude 18.6 North, longitude 146.6 West. Darby is
moving toward the west near 14 mph (22 km/h). While this general 
motion is expected to continue over the next 48 hours, some 
decrease in forward speed is expected late Friday into Saturday. 
 
Maximum sustained winds are near 65 mph (100 km/h) with higher
gusts.  Little change in strength is forecast during the next 48
hours. 
 
Tropical-storm-force winds extend outward up to 105 miles (165 km)
from the center.
 
The estimated minimum central pressure is 998 mb (29.47 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND:  Tropical-storm-force winds are possible over the Big Island
and portions of Maui county on Saturday.
 
SURF:  Swells generated by Darby are expected to reach the Hawaiian
Islands over the next couple of days, possibly becoming damaging
along some coastlines Friday and Saturday.
 
RAINFALL:  Heavy rains associated with Darby are expected to reach
the Big Island and portions of Maui county late Friday, potentially
impacting the remainder of the state Saturday and Sunday.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 200 PM HST.
Next complete advisory at 500 PM HST.
 
$$
Forecaster Birchard