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BULLETIN
Tropical Storm Douglas Intermediate Advisory Number 32A
NWS Central Pacific Hurricane Center Honolulu HI   EP082020
200 AM HST Tue Jul 28 2020
 
...DOUGLAS WEAKENING BUT BRINGING TROPICAL STORM CONDITIONS TO
PORTIONS OF THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT...

 
SUMMARY OF 200 AM HST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...23.8N 165.7W
ABOUT 40 MI...60 KM E OF FRENCH FRIGATE SHOALS
ABOUT 525 MI...845 KM WNW OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...50 MPH...85 KM/H
PRESENT MOVEMENT...WNW OR 290 DEGREES AT 18 MPH...30 KM/H
MINIMUM CENTRAL PRESSURE...1001 MB...29.56 INCHES

 
WATCHES AND WARNINGS
--------------------
CHANGES WITH THIS ADVISORY...
 
None.
 
SUMMARY OF WATCHES AND WARNINGS IN EFFECT...
 
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 Tropical Storm Watch is in effect for...
* Portions of the Papahanaumokuakea National Marine Monument from
Maro Reef to Lisianski
 
A Tropical Storm Warning means that tropical storm conditions
are expected somewhere within the warning area, in this case within
the next 24 hours.
 
A Tropical Storm Watch means that tropical storm conditions are
possible somewhere within the watch area, in this case within the
next 12 to 36 hours.

Interests elsewhere in the Papahanaumokuakea Marine National
Monument should monitor the progress of this system.
 
DISCUSSION AND OUTLOOK
----------------------
At 200 AM HST (1200 UTC), the center of Tropical Storm Douglas was
located near latitude 23.8 North, longitude 165.7 West. Douglas 
is moving toward the west-northwest near 18 mph (30 km/h), and 
this general motion is expected to continue the next couple of days.
 
Maximum sustained winds are near 50 mph (85 km/h) with higher
gusts. Weakening is forecast over the next couple of days, and
Douglas is expected to dissipate by Thursday.
 
Tropical-storm-force winds extend outward up to 125 miles (205 km)
from the center.
 
The estimated minimum central pressure is 1001 mb (29.56 inches).
 

HAZARDS AFFECTING LAND
----------------------
WIND: The center of Douglas will pass very close to French Frigate 
Shoals this morning, bringing tropical storm conditions. Tropical 
storm conditions are then expected to spread from French Frigate 
Shoals to Maro Reef, including Gardner Pinnacles, later today and 
tonight. Tropical storm conditions are possible from Maro Reef to 
Lisianski later tonight into Wednesday.
 
SURF: Large seas and swells generated by Douglas will impact a
large swath of the Papahanaumokuakea Marine National Monument the
next day or two. 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 complete advisory at 500 AM HST.
 
$$
Forecaster Birchard
 
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