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Hurricane Douglas Advisory Number 28
NWS Central Pacific Hurricane Center Honolulu HI EP082020
1100 PM HST Sun Jul 26 2020
...HURRICANE DOUGLAS A LITTLE STRONGER AS IT PULLS AWAY FROM
OAHU AND SKIRTS NORTH OF KAUAI...
SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION
ABOUT 50 MI...85 KM NE OF LIHUE HAWAII
ABOUT 100 MI...160 KM NW OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...90 MPH...150 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 16 MPH...26 KM/H
MINIMUM CENTRAL PRESSURE...987 MB...29.15 INCHES
WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY...
The Hurricane Warning for Oahu has been canceled.
The Tropical Storm Watch for portions of the Papahanaumokuakea
Marine National Monument from French Frigate Shoals to Maro Reef
has been upgraded to a Tropical Storm Warning.
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
A Hurricane Warning is in effect for...
* Kauai County, including the islands of Kauai and Niihau
A Tropical Storm Warning is in effect for...
* Portions of the Papahanaumokuakea Marine National Monument from
Nihoa to French Frigate Shoals to Maro Reef
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area, in this case within the next
A Tropical Storm Warning means that tropical storm conditions are
expected somewhere within the warning area, in this case within the
next 36 to 48 hours.
Interests elsewhere in the Papahanaumokuakea Marine National
Monument should monitor the progress of this system.
For storm information specific to your area, please monitor
products issued by the National Weather Service office in
DISCUSSION AND OUTLOOK
At 1100 PM HST (0900 UTC), the center of Hurricane Douglas was
located near latitude 22.5 North, longitude 158.8 West. Douglas is
moving toward the west-northwest near 16 mph (26 km/h). This
general motion is expected to continue for the next couple of days,
with a slight turn to the west and an increase in forward speed.
Maximum sustained winds are near 90 mph (150 km/h) with higher
gusts. Weakening is forecast during the next 48 hours, but Douglas
will remain a hurricane until it passes west of Kauai.
Hurricane-force winds extend outward up to 25 miles (35 km) from the
center and tropical-storm-force winds extend outward up to 115 miles
The estimated minimum central pressure is 987 mb (29.15 inches).
HAZARDS AFFECTING LAND
WIND: Hurricane conditions are expected across northern portions
of Kauai tonight. Due to the steep terrain of the islands,
localized strong wind gusts are expected.
SURF: Large swells generated by Douglas will affect the Hawaiian
Islands tonight, producing life-threatening and potentially
damaging surf along exposed shores.
RAINFALL: Rainfall associated with Douglas is expected to
affect portions of the main Hawaiian Islands into Monday.
Total rain accumulations of 3 to 6 inches with locally higher
amounts are possible, with the greatest rainfall in elevated
terrain on Kauai. This rain may result in flash flooding and land
slides, as well as rapid water level rises on small streams.
Key messages for Douglas can be found in the Tropical Cyclone
Discussion under AWIPS header HFOTCDCP2 and WMO header WTPA32 PHFO.
Next intermediate advisory at 200 AM HST.
Next complete advisory at 500 AM HST.