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BULLETIN
Hurricane Douglas Advisory Number  30
NWS Central Pacific Hurricane Center Honolulu HI   EP082020
1100 AM HST Mon Jul 27 2020
 
...HURRICANE WARNING IN EFFECT FOR PORTIONS OF THE PAPAHANAUMOKUAKEA
MARINE NATIONAL MONUMENT...
 
 
SUMMARY OF 1100 AM HST...2100 UTC...INFORMATION
-----------------------------------------------
LOCATION...23.0N 162.2W
ABOUT 190 MI...310 KM WNW OF LIHUE HAWAII
ABOUT 300 MI...480 KM WNW OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...80 MPH...130 KM/H
PRESENT MOVEMENT...W OR 270 DEGREES AT 20 MPH...31 KM/H
MINIMUM CENTRAL PRESSURE...992 MB...29.30 INCHES
 
 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
A Hurricane Warning is in effect for...
* Portions of the Papahanaumokuakea Marine National Monument from
Nihoa to French Frigate Shoals
 
A Tropical Storm Warning is in effect for...
* Portions of the Papahanaumokuakea Marine National Monument from
French Frigate Shoals to Maro Reef
 
A Hurricane Watch is in effect for...
* Portions of the Papahanaumokuakea Marine National Monument from
French Frigate Shoals to Maro Reef
 
A Tropical Storm Watch is in effect for...
* Portions of the Papahanaumokuakea Marine National Monument from
Maro Reef to Lisianski
 
A Hurricane Warning means that hurricane conditions are expected
somewhere within the warning area, in this case within the next 36
hours.
 
A Hurricane Watch means that hurricane conditions are possible
somewhere within the warning area, in this case within the next 24
to 36 hours.
 
A Tropical Storm Warning means that tropical storm conditions
are expected somewhere within the warning area, in this case within
the next 12 to 24 hours.
 
A Tropical Storm Watch means that tropical storm conditions are
possible somewhere within the watch area, in this case within the
next to 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
Honolulu Hawaii.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 1100 AM HST (2100 UTC), the center of Hurricane Douglas was
located near latitude 23.0 North, longitude 162.2 West. Douglas is
moving toward the west near 20 mph (31 km/h) and this motion is
expected to continue through Wednesday.
 
Maximum sustained winds are near 80 mph (130 km/h) with higher
gusts. Some weakening is forecast through Wednesday. 
 
Hurricane-force winds extend outward up to 10 miles (20 km) from the
center and tropical-storm-force winds extend outward up to 105 miles
(165 km).
 
The estimated minimum central pressure is 992 mb (29.30 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Hurricane force winds are expected over portions of the
Papahanaumokuakea Marine National Monument from Nihoa to French
Frigate Shoals later today and tonight. Tropical storm
conditions are expected from French Frigate Shoals to Maro Reef
Tuesday and Tuesday night, with hurricane conditions possible.
Tropical storm conditions are possible from Maro Reef to Lisianski
Tuesday night and Wednesday.
 
SURF: Large swells generated by Douglas will impact a large swath of
the Papahanaumokuakea Marine National Monument the next couple of
days. These swells will produce large breaking waves that could
inundate some of the lower-lying atolls.
 
RAINFALL:  Rainfall associated with Douglas will impact portions of
the Papahanaumokuakea Marine National Monument over the next couple
of days.
 
 
NEXT ADVISORY
-------------
Next intermediate advisory at 200 PM HST.
Next complete advisory at 500 PM HST.
 
$$
Forecaster Powell
 
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