WTPA33 PHFO 232035
TCPCP3

BULLETIN
TROPICAL STORM DARBY ADVISORY NUMBER  49
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI   EP052016
1100 AM HST SAT JUL 23 2016
 
...DARBY BRINGING HEAVY RAIN AND GUSTY WINDS TO THE BIG ISLAND...
 
 
SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...18.9N 154.8W
ABOUT 60 MI...95 KM SSE OF HILO HAWAII
ABOUT 260 MI...420 KM SE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...45 MPH...75 KM/H
PRESENT MOVEMENT...W OR 280 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...1002 MB...29.59 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
* Oahu
 
A Tropical Storm Watch is in effect for...
* 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 imminent over the Big Island. 

A Tropical Storm Watch means that tropical storm conditions are
possible within the watch area within 48 hours.
 
Interests in the eastern portion of the Papahanaumokuakea Marine
National Monument should monitor the progress of Darby.
 
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 AM HST (2100 UTC), the center of Tropical Storm Darby was
located near latitude 18.9 North, longitude 154.8 West. Darby is
moving toward the west near 10 mph (17 km/h). A gradual turn toward
the northwest is expected Sunday and Monday, with little change in
forward speed. On the forecast track, the center of Darby is
forecast to pass over the Big Island today, and south of Maui
County early Sunday. The center of Darby is expected to pass close
to Oahu and Kauai County late Sunday and Monday. 
 
Maximum sustained winds are near 45 mph (75 km/h) with higher gusts.
Some weakening is forecast during the next 48 hours. 
 
Tropical-storm-force winds extend outward up to 105 miles (165 km)
from the center. A wind gust to 54 mph was measured in Hawaii
Volcanoes National Park earlier this morning.  
 
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
today, over portions of Maui County tonight 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 possible
isolated maximum amounts of 20 inches. These rains could
produce life-threatening flash floods and landslides.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 200 PM HST.
Next complete advisory at 500 PM HST.
 
$$
Forecaster Birchard