Public Advisory for HURRICANE ISELLE

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HURRICANE ISELLE INTERMEDIATE ADVISORY NUMBER 24A

Issued: 200 AM HST WED AUG 06 2014

Hurricane Iselle weakens as it tracks toward the main Hawaiian islands

SUMMARY OF 200 AM HST...1200 UTC...INFORMATION

LOCATION: 16.9N 144.1W
ABOUT 745 MI: 1200 KM E OF HILO HAWAII
ABOUT 945 MI: 1520 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS: 90 MPH: 145 KM/H
PRESENT MOVEMENT: W OR 280 DEGREES AT 13 MPH: 20 KM/H
MINIMUM CENTRAL PRESSURE: 979 MB or 28.91 INCHES

DISCUSSION AND 48-HOUR OUTLOOK

At 200 am HST, 1200 UTC, the center of hurricane Iselle was located near latitude 16.9 north, longitude 144.1 west. Iselle is moving toward the west near 13 mph, 20 km/h. This general motion is expected to continue through Thursday, with a slight increase in forward speed. On this forecast track, the outer winds of Iselle may reach the easternmost Hawaiian islands early Thursday afternoon.

Maximum sustained winds are near 90 mph, 145 km/h, with higher gusts. Some additional gradual weakening is forecast during the next 48 hours, and Iselle is expected become a tropical storm by Thursday.

Hurricane force winds extend outward up to 35 miles, 55 km, from the center, and tropical storm force winds extend outward up to 155 miles, 250 km.

The estimated minimum central pressure is 979 mb, 28.91 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are possible on the Big Island of Hawaii on Thursday, and portions of Maui county Thursday night.

SURF

Swells generated by Iselle are expected to reach the main Hawaiian islands through the day on Wednesday, and possibly becoming damaging along some coastlines by Thursday.

RAINFALL

Heavy rains associated with Iselle are expected to reach the Big Island Thursday and spread to the remainder of the state Thursday night and Friday. These rains could cause life-threatening flash floods and mud slides.

NEXT ADVISORY
NEXT COMPLETE ADVISORY...500 AM HST.

$$
FORECASTER HOUSTON