Public Advisory for TROPICAL STORM FLOSSIE

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TROPICAL STORM FLOSSIE ADVISORY NUMBER 18

Issued: 1100 PM HST SUN JUL 28 2013

Flossie continues to bear down on the main Hawaiian islands

SUMMARY OF 1100 PM HST...0900 UTC...INFORMATION

LOCATION: 19.2N 152.1W
ABOUT 200 MI: 320 KM E OF HILO HAWAII
ABOUT 405 MI: 650 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS: 50 MPH: 85 KM/H
PRESENT MOVEMENT: W OR 280 DEGREES AT 17 MPH: 28 KM/H
MINIMUM CENTRAL PRESSURE: 999 MB or 29.50 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 PLEASE MONITOR PRODUCTS
ISSUED BY THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN HONOLULU.

DISCUSSION AND 48-HOUR OUTLOOK

At 1100 pm HST, 0900 UTC, the center of tropical storm Flossie was located near latitude 19.2 north, longitude 152.1 west. Flossie is moving toward the west near 17 mph, 28 km/h. This motion is expected to continue for the next 12 hours with a slight turn to the west northwest after that.

Maximum sustained winds are near 50 mph, 85 km/h, with higher gusts. Some weakening is forecast during the next 48 hours.

Tropical storm force winds extend outward up to 140 miles, 220 km from the center.

Estimated minimum central pressure is 999 mb, 29.50 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 high surf is starting to hammer east facing shores of the Big Island. Surf will build overnight, with the largest surf expected Monday into Tuesday. The big surf may cause coastal road closures, even before the storm arrives. Please see the latest hurricane local statement for information specific to your area.

NEXT ADVISORY
NEXT INTERMEDIATE ADVISORY...200 AM HST.
NEXT COMPLETE ADVISORY...500 AM HST.

$$
FORECASTER DONALDSON