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Public Advisory for TROPICAL STORM FLOSSIE

Raw Text File

TROPICAL STORM FLOSSIE INTERMEDIATE ADVISORY NUMBER 18A

Issued: 200 AM HST MON JUL 29 2013

Flossie continues to bear down on the main Hawaiian islands

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

LOCATION: 19.6N 152.5W
ABOUT 165 MI: 320 KM E OF HILO HAWAII
ABOUT 370 MI: 650 KM ESE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS: 50 MPH: 85 KM/H
PRESENT MOVEMENT: W OR 280 DEGREES AT 16 MPH: 26 KM/H
MINIMUM CENTRAL PRESSURE: 1000 MB or 29.53 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 THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN
HONOLULU.

DISCUSSION AND 48-HOUR OUTLOOK

At 200 am HST, the center of tropical storm Flossie was located near latitude 19.6 north, longitude 152.5 west. Flossie is moving toward the west near 16 mph, 28 km/h. This motion is expected to continue for 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 100 miles, 160 km from the center.

Estimated minimum central pressure is 1000 mb, 29.53 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are expected to reach the Big Island this morning, Maui county by late morning and Oahu tonight. Tropical storm conditions are possible on Kauai and Niihau tonight.

RAINFALL

Heavy rainfall is expected to begin this morning over Hawaii county and this afternoon over Maui county, with heavy rain spreading to Oahu tonight. 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 hammering east facing shores of the Big Island. Surf will continue to build this morning with the largest surf continuing 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 COMPLETE ADVISORY...500 AM HST.

$$
FORECASTER DONALDSON