WTPA33 PHFO 232359
TCPCP3
BULLETIN
TROPICAL STORM DARBY INTERMEDIATE ADVISORY NUMBER 49A
NWS CENTRAL PACIFIC HURRICANE CENTER HONOLULU HI EP052016
200 PM HST SAT JUL 23 2016
[b]...DARBY COMING ASHORE IN THE KAU DISTRICT OF THE BIG ISLAND...[/b]
SUMMARY OF 200 PM HST...0000 UTC...INFORMATION
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LOCATION...19.1N 155.1W
ABOUT 45 MI...70 KM S OF HILO HAWAII
ABOUT 240 MI...385 KM SE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...WNW OR 295 DEGREES AT 10 MPH...17 KM/H
MINIMUM CENTRAL PRESSURE...1006 MB...29.70 INCHES
WATCHES AND WARNINGS
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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 already occurring, or 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
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At 200 PM HST (0000 UTC), the center of Tropical Storm Darby was
located by aircraft near latitude 19.1 North, longitude 155.1 West.
Darby is moving toward the west-northwest 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 move ashore in the Kau District in
the next couple of hours. After emerging from the Big Island, the
center of Darby is expected to pass just south of Maui County later
tonight or early Sunday. The center of Darby is expected to pass
close to Oahu and Kauai late Sunday and Monday.
Maximum sustained winds are near 40 mph (65 km/h) with higher
gusts. Weakening is forecast during the next 48 hours.
Tropical-storm-force winds extend outward up to 105 miles (165 km)
from the center. Sustained winds of 43 mph and wind gusts to 61
mph have been reported in Kohala Ranch on the Big Island in the
last couple of hours.
The estimated minimum central pressure is 1002 mb (29.59 inches).
HAZARDS AFFECTING LAND
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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 County 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
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Next complete advisory at 500 PM HST.
$$
Forecaster Birchard