Public Advisory for TROPICAL STORM ISELLE

Raw Text File

TROPICAL STORM ISELLE ADVISORY NUMBER 34

Issued: 500 AM HST FRI AUG 08 2014

Rapidly weakening Iselle over the Big Island and moving west-northwest

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

LOCATION: 19.3N 156.1W
ABOUT 70 MI: 115 KM WSW OF HILO HAWAII
ABOUT 180 MI: 290 KM SE OF HONOLULU HAWAII
MAXIMUM SUSTAINED WINDS: 50 MPH: 85 KM/H
PRESENT MOVEMENT: WNW OR 290 DEGREES AT 13 MPH: 20 KM/H
MINIMUM CENTRAL PRESSURE: 1003 MB or 29.62 INCHES

WATCHES AND WARNINGS

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY,

THE HURRICANE WARNING HAS BEEN DISCONTINUED FOR HAWAII COUNTY. A
TROPICAL STORM WARNING IS NOW IN EFFECT FOR HAWAII COUNTY.

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
* 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, .IN
THIS CASE IN THE NEXT 12 TO 24 HOURS.

INTERESTS IN THE NORTHWEST HAWAIIAN ISLANDS SHOULD MONITOR THE
PROGRESS OF ISELLE.

FOR STORM INFORMATION SPECIFIC TO YOUR AREA, PLEASE MONITOR
PRODUCTS ISSUED BY THE NATIONAL WEATHER SERVICE OFFICE IN
HONOLULU HAWAII.

DISCUSSION AND 48-HOUR OUTLOOK

At 500 am HST, 1500 UTC, the center of tropical storm Iselle was located near latitude 19.3 north, longitude 156.1 west. Iselle is moving toward the west-northwest near 13 mph, 20 km/h, and this motion is expected to continue through early Sunday.

Maximum sustained winds are near 50 mph, 85 km/h, with higher gusts. Additional weakening is forecast during the next 48 hours, with Iselle becoming a post-tropical remnant low by Saturday afternoon.

Tropical storm force winds extend outward up to 105 miles, 165 km from the center.

The estimated minimum central pressure is 1003 mb, 29.62 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are occurring on the Big Island and parts of Maui county, and will continue through the morning. Tropical storm conditions are expected on Oahu and Kauai county later today.

RAINFALL

Rainfall totals of 5 to 8 inches, with isolated maximum amounts to 12 inches, are expected along the track of Iselle. These rains could cause life-threatening flash floods as well as rock and mud slides.

SURF

Swells generated by Iselle are producing very large and damaging mainly along east and south facing shores of the Big Island. This damaging surf will diminish later today.

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

$$

FORECASTER BIRCHARD