Public Advisory for TROPICAL STORM ANA

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TROPICAL STORM ANA ADVISORY NUMBER 15

Issued: 1100 PM HST THU OCT 16 2014

Ana strengthens while drawing closer to Hawaii

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

Location: 15.2N 153.0W
About 340 miles (545 km) SSE of Hilo Hawaii
About 530 miles (850 km) SE of Honolulu Hawaii
Maximum sustained winds: 65 mph (100 km/h)
Present movement: WNW or 295 degrees at 14 mph (22 km/h)
Minimum central pressure: 998 MB or 29.47 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 TO 36 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 1100 pm HST, 0900 UTC, the center of tropical storm Ana was located near latitude 15.2 north, longitude 153.0 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 on Friday and Saturday. A decrease in forward speed is expected on Saturday.

Maximum sustained winds are near 65 mph, 100 km/h, with higher gusts. Gradual strengthening is expected during the next 24 hours, with Ana possibly becoming a hurricane on Friday. 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 998 mb, 29.47 inches.

HAZARDS AFFECTING LAND

WIND

Tropical storm conditions are possible on the Big Island of Hawaii starting Friday night.

SURF

Large swells produced by Ana are expected to build over the eastern end of the main Hawaiian island chain through Friday morning. 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 late Friday and Saturday, and persisting through the weekend in some areas.

RAINFALL

Heavy rainfall associated with Ana may reach the Big Island of Hawaii Friday afternoon, with total rain accumulations between 6 and 12 inches expected. 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 INTERMEDIATE ADVISORY...200 AM HST.
Next complete advisory...500 AM HST.

$$

FORECASTER BIRCHARD