Public Advisory for TROPICAL STORM ANA

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TROPICAL STORM ANA INTERMEDIATE ADVISORY NUMBER 15A

Issued: 200 AM HST FRI OCT 17 2014

Ana strengthens while drawing closer to Hawaii

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

Location: 15.4N 153.7W
About 315 miles (505 km) SSE of Hilo Hawaii
About 500 miles (805 km) SE of Honolulu Hawaii
Maximum sustained winds: 70 mph (110 km/h)
Present movement: WNW or 295 degrees at 14 mph (22 km/h)
Minimum central pressure: 994 MB or 29.36 inches

WATCHES AND WARNINGS

CHANGES IN WATCHES AND WARNINGS WITH THIS ADVISORY,

NONE

SUMMARY OF WATCHES AND WARNINGS IN EFFECT,

A TROPICAL STORM WATCH IS IN EFFECT FOR,
* HAWAII COUNTY

A TROPICAL STORM WATCH MEANS THAT TROPICAL STORM CONDITIONS ARE
POSSIBLE WITHIN THE WATCH AREA, IN THIS CASE WITHIN 24 HOURS.

INTERESTS ELSEWHERE IN THE MAIN HAWAIIAN ISLANDS, AND 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 200 am HST, 1200 UTC, the center of tropical storm Ana was located by an air force reserve hurricane hunter aircraft near latitude 15.4 north, longitude 153.7 west. Ana is moving toward the west-northwest near 14 mph, 22 km/h. This motion is expected to continue tonight, with a slight turn to the northwest later today and Saturday. A decrease in forward speed is expected on Saturday.

Maximum sustained winds are near 70 mph, 110 km/h, with higher gusts. Gradual strengthening is expected during the next 24 hours, with Ana possibly becoming a hurricane later today. Slight weakening is expected on Saturday.

Tropical storm force winds extend outward up to 70 miles, 110 km from the center.

The estimated minimum central pressure is 994 mb, 29.36 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are possible on the Big Island of Hawaii tonight.

SURF

Large swells produced by Ana are expected to build over the eastern end of the main Hawaiian island chain today through Saturday. These large swells will continue to spread up the island chain through the weekend. Surf produced by these swells could potentially be damaging along exposed south and southeast shorelines beginning later today and Saturday, and persisting through the weekend in some areas.

RAINFALL

Heavy rainfall associated with Ana may reach the Big Island of Hawaii this afternoon, with total rain accumulations between 6 and 8 inches expected, with isolated totals of 12 inches possible. Heavy rain could potentially affect the other islands Saturday and Sunday. This rainfall could cause life-threatening flash floods and mud slides.

NEXT ADVISORY
Next complete advisory...500 AM HST.

$$

FORECASTER BIRCHARD