5AM Saturday Update: Douglas To Affect All Islands Over The Next 48 Hours


5AM Saturday:

TROPICAL STORM WARNINGS: Big Island and Maui County (Maui, Molokai, Lanai)

HURRICANE WATCHES: Big Island, Maui County, Oahu

TROPICAL STORM WATCH: Kauai County (Kauai, Ni'ihau)

Hurricane Douglas remains on a forecast track to pass through the Hawaiian Islands over the next 48 hours.

A hurricane watch remains in effect for Oahu, Maui County, and the Big Island.Tropical Storm Warnings are in effect for the Big Island and Maui County…and, as of 5AM, a tropical storm watch has been issued for Kauai and Ni’ihau.

According to the 5AM report from the Central Pacific Hurricane Center, Douglas did weaken slightly during the overnight, but remains a Category 2 storm with maximum sustained winds of 105mph—those winds extending up to 25 miles from the eye of the storm.Douglas is now roughly 440 miles east of Hilo and 630 miles ESE of Honolulu and moving steadily to the WNW at 18mph.

Current forecasts have the storm maintaining Category 1 hurricane strength as the center passes very close to the northern end of the Big Island, Maui, and Molokai.The forecast track shows Douglas passing extremely close or over Oahu and Kauai.

The storm will begin to affect the Big Island tonight and spread across the rest of the islands through the day on Sunday.Winds and heavy rains will start to affect Oahu Sunday.

For the latest on Douglas, stay tuned to this iHeart radio station and visit the “Hawaii Storm Watch” page on this station’s website.

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From the Central Pacific Hurricane Center:

BULLETIN

Hurricane Douglas Advisory Number21

NWS Central Pacific Hurricane Center Honolulu HI EP082020

500 AM HST Sat Jul 25 2020

...HURRICANE DOUGLAS CONTINUES TO MOVE WEST-NORTHWEST TOWARD

HAWAII...

...TROPICAL STORM WATCH ISSUED FOR KAUAI COUNTY...

SUMMARY OF 500 AM HST...1500 UTC...INFORMATION

----------------------------------------------

LOCATION...19.1N 148.4W

ABOUT 440 MI...705 KM E OF HILO HAWAII

ABOUT 635 MI...1020 KM ESE OF HONOLULU HAWAII

MAXIMUM SUSTAINED WINDS...105 MPH...165 KM/H

PRESENT MOVEMENT...WNW OR 290 DEGREES AT 18 MPH...30 KM/H

MINIMUM CENTRAL PRESSURE...975 MB...28.80 INCHES

WATCHES AND WARNINGS

--------------------

CHANGES WITH THIS ADVISORY...

A Tropical Storm Watch has been issued for Kauai County, including

the islands of Kauai and Niihau.

SUMMARY OF WATCHES AND WARNING IN EFFECT...

A Tropical Storm Warning is in effect for...

* Hawaii County

* Maui County, including the islands of Maui, Lanai, Molokai and

Kahoolawe

A Hurricane Watch is in effect for...

* Hawaii County

* Maui County, including the islands of Maui, Lanai, Molokai 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 somewhere within the warning area within 36 hours.

A Hurricane Watch means that hurricane conditions are possible

within the watch area, in this case within the next 36 to 48 hours.

A Tropical Storm Watch means that tropical storm conditions are

possible within the watch area, in this case within the next 36 to

48 hours.

Interests elsewhere in the main Hawaiian Islands, and 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 500 AM HST (1500 UTC), the center of Hurricane Douglas was

located near latitude 19.1 North, longitude 148.4 West. Douglas is

moving toward the west-northwest near 18 mph (30 km/h). This motion

is expected to continue with a slight decrease in forward

speed today, followed by a slight turn toward the west tonight

through Monday. On the forecast track, Douglas will be near the

main Hawaiian Islands late tonight through Sunday night.

Maximum sustained winds are near 105 mph (165 km/h) with higher

gusts. Gradual weakening is expected through the weekend. However,

Douglas is still forecast to be near hurricane strength when it

nears the islands.

Hurricane-force winds extend outward up to 25 miles (35 km) from the

center and tropical-storm-force winds extend outward up to 105 miles

(165 km).

The estimated minimum central pressure is 975 mb (28.80 inches).

HAZARDS AFFECTING LAND

----------------------

WIND:Hurricane conditions are possible across portions of the

main Hawaiian Islands late tonight through Sunday night. Tropical

Storm conditions are expected across Hawaii County and Maui County

beginning late tonight or Sunday.Tropical Storm conditions are

possible across Kauai County late Sunday or Sunday night.

SURF:Large swells generated by Douglas are expected to affect

the Hawaiian Islands this weekend. These swells are likely to cause

life-threatening surf and rip current conditions for the next

couple of days.

RAINFALL:Heavy rainfall associated with Douglas is expected to

affect portions of the main Hawaiian Islands from late tonight

through Monday. Total rain accumulations of 5 to 10 inches

are possible from Maui County westward to Kauai County, with

the greatest amounts in elevated terrain. This rain may result

in life-threatening flash flooding and land slides, as well as

rapid water level rises on small streams. Douglas is expected to

produce 2 to 5 inches of rainfall over the northern half of the

Big Island.

NEXT ADVISORY

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Next complete advisory at 1100 AM HST.


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