Public Advisory for HURRICANE ANA

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HURRICANE ANA ADVISORY NUMBER 20

Issued: 500 AM HST SAT OCT 18 2014

Ana weakens slightly as it passes west of the Big Island

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

Location: 18.5N 158.1W
About 155 miles (250 km) WSW of KAILUA-KONA Hawaii
About 195 miles (310 km) S of Honolulu Hawaii
Maximum sustained winds: 80 mph (130 km/h)
Present movement: NW or 315 degrees at 13 mph (20 km/h)
Minimum central pressure: 986 MB or 29.12 inches



Hurricane Category: 1

WATCHES AND WARNINGS

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY,

THE TROPICAL STORM WATCH FOR MAUI COUNTY, INCLUDING THE ISLANDS
OF MAUI, MOLOKAI, LANAI AND KAHOOLAWE, HAS BEEN CANCELLED.

SUMMARY OF WATCHES AND WARNINGS IN EFFECT,

A TROPICAL STORM WATCH IS IN EFFECT FOR,
* OAHU
* KAUAI COUNTY INCLUDING THE ISLANDS OF KAUAI AND NIIHAU

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA, IN THIS CASE WITHIN THE NEXT 36
HOURS.

INTERESTS IN THE PAPAHANAUMOKUAKEA MARINE NATIONAL MONUMENT
AREA SHOULD MONITOR THE PROGRESS OF ANA.

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 hurricane Ana was located near latitude 18.5 north, longitude 158.1 west. Ana is moving toward the northwest near 13 mph, 20 km/h, and this general motion is expected to continue this morning. A decrease in forward speed is expected later today and Sunday, with a turn toward the west. On the forecast track, the center of Ana will pass about 175 miles southwest of Oahu and Kauai county tonight and Sunday.

Maximum sustained winds are near 80 mph, 130 km/h, with higher gusts. Some weakening is forecast during the next 48 hours, with Ana expected to weaken below hurricane strength on Sunday.

Hurricane force winds extend outward up to 25 miles, 35 km, from the center, and tropical storm force winds extend outward up to 105 miles, 165 km.

The estimated minimum central pressure is 986 mb, 29.12 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are possible over Oahu and Kauai county tonight and Sunday.

SURF

Large swells produced by Ana are expected to impact most of the main Hawaiian islands today and Sunday. Surf produced by these swells could potentially be damaging along exposed southern and southeastern shorelines through Sunday.

RAINFALL

Bands of heavy rainfall associated with Ana will periodically move over the main Hawaiian islands this weekend.

NEXT ADVISORY
NEXT INTERMEDIATE ADVISORY...800 AM HST.
Next complete advisory...1100 AM HST.

$$

FORECASTER BIRCHARD