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BULLETIN
Tropical Storm Douglas Intermediate Advisory Number 36A
NWS Central Pacific Hurricane Center Honolulu HI   EP082020
200 AM HST Wed Jul 29 2020
 
...DOUGLAS PASSING SOUTH OF LISIANSKI AND RAPIDLY APPROACHING
THE DATE LINE...
 
 
SUMMARY OF 200 AM HST...1200 UTC...INFORMATION
----------------------------------------------
LOCATION...24.7N 174.3W
ABOUT 320 MI...515 KM SE OF MIDWAY ISLAND
ABOUT 1065 MI...1715 KM W OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS...40 MPH...65 KM/H
PRESENT MOVEMENT...W OR 275 DEGREES AT 23 MPH...37 KM/H
MINIMUM CENTRAL PRESSURE...1010 MB...29.83 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
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 6 hours.
 
 
DISCUSSION AND OUTLOOK
----------------------
At 200 AM HST (1200 UTC), the center of Tropical Storm Douglas was
located near latitude 24.7 North, longitude 174.3 West. Douglas is 
moving toward the west near 23 mph (37 km/h), and this general 
motion is expected to continue until Douglas crosses the 
International Date Line in about 24 hours.
 
Maximum sustained winds are near 40 mph (65 km/h) with higher
gusts. Weakening is forecast during the next two days, and Douglas 
is expected to dissipate shortly after crossing the Date Line.
 
Tropical-storm-force winds extend outward up to 115 miles (185 km)
from the center.
 
The estimated minimum central pressure is 1010 mb (29.83 inches).
 
 
HAZARDS AFFECTING LAND
----------------------
WIND: Tropical storm conditions are expected from Laysan Island to
Lisianski through tonight, with winds diminishing later today.
 
SURF: Large seas and swells generated by Douglas will impact
portions of the Papahanaumokuakea Marine National Monument west of
Maro Reef through Wednesday. These swells may 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 west of Maro Reef 
through Wednesday.
 
 
NEXT ADVISORY
-------------
Next complete advisory at 500 AM HST.
 
$$
Forecaster Birchard
 
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