Public Advisory for TROPICAL STORM FLOSSIE

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TROPICAL STORM FLOSSIE ADVISORY NUMBER 17

Issued: 500 PM HST SUN JUL 28 2013

Flossie moving steadily westward toward the main Hawaiian islands

SUMMARY OF 500 PM HST...0300 UTC...INFORMATION

LOCATION: 19.6N 150.2W
ABOUT 320 MI: 515 KM E OF HILO HAWAII
ABOUT 510 MI: 825 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS: 60 MPH: 95 KM/H
PRESENT MOVEMENT: W OR 265 DEGREES AT 18 MPH: 30 KM/H
MINIMUM CENTRAL PRESSURE: 996 MB or 29.41 INCHES

WATCHES AND WARNINGS
CHANGES WITH THIS ADVISORY

None.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT

A TROPICAL STORM WARNING IS IN EFFECT FOR:
*HAWAII COUNTY
*MAUI COUNTY, INCLUDING THE ISLANDS OF MAUI, MOLOKAI, LANAI AND
KAHOOLAWE
*OAHU

A TROPICAL STORM WATCH IS IN EFFECT FOR
*KAUAI AND NIIHAU

A TROPICAL STORM WARNING MEANS THAT TROPICAL STORM CONDITIONS ARE
EXPECTED WITHIN THE WARNING AREA WITHIN 36 HOURS.

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA WITHIN 48 HOURS.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA IN THE UNITED
STATES, PLEASE MONITOR PRODUCTS ISSUED BY THE HONOLULU NWS FORECAST
OFFICE.

DISCUSSION AND 48-HOUR OUTLOOK

At 500 pm HST, 0300 UTC, the center of tropical storm Flossie was located near latitude 19.6 north, longitude 150.2 west. Flossie is moving toward the west near 18 mph, 30 km/h, and this motion is expected to continue through the next 48 hours.

Maximum sustained winds are near 60 mph, 95 km/h, with higher gusts. Some weakening is forecast during the next 48 hours.

Tropical storm force winds extend outward up to 160 miles, 260 km from the center.

Estimated minimum central pressure is 996 mb, 29.41 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are expected to reach the Big Island late tonight, Maui county Monday morning and Oahu Monday night. Tropical storm conditions are possible on Kauai and Niihau Monday night, lasting into Tuesday.

RAINFALL

Heavy rainfall is expected to begin as early as Monday morning over Hawaii county and Monday afternoon over Maui county, with heavy rain spreading to Oahu by Monday night. Flossie is expected to produce total rainfall amounts of 6 to 10 inches over the Big Island and Maui county, with isolated maximum amounts of 15 inches possible, mainly windward. Rainfall amounts of 4 to 8 inches are possible over Oahu, with isolated maximum amounts of 12 inches possible, mainly windward. This rainfall could cause life- threatening flash floods and mud slides, especially in the mountains.

SURF

Dangerously large surf will begin to impact east facing shores of the islands as early as tonight with the largest surf expected on Monday into Tuesday. Be aware that large surf can cause coastal road closures, even before the storm arrives. Please consult the latest hurricane local statement for information specific to your area.

NEXT ADVISORY
NEXT INTERMEDIATE ADVISORY...800 PM HST.
NEXT COMPLETE ADVISORY...1100 PM HST.

$$
FORECASTER POWELL