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Issued: Aug 15, 2013 04:00 am HST

SPECIAL TROPICAL WEATHER OUTLOOK
For the central north Pacific, between 140°W and 180.

1. An elongated trough of low pressure about 1150 miles southwest of Kauai is producing disorganized showers and thunderstorms. Further development, if any, will be slow to occur, as this trough moves west at about 15 mph. There is a low chance, near 20 percent, that this system will develop into a tropical cyclone in the next 48 hours.

2. An area of low pressure centered about 650 miles south of Kauai is moving west near 20 mph. This system continues to show signs of improved organization, and a tropical depression may be developing, as strong thunderstorms are increasing near the center. Environmental conditions appear to be conducive for further development, and this system has a high chance, near 80 percent, of becoming a tropical cyclone during the next 48 hours.

3. A surface trough about 675 miles southeast of Hilo Hawaii is producing disorganized showers and thunderstorms as it moves west at 15 to 20 mph. Environmental conditions are not conducive for further development, and this system has a low chance, near 0 percent, of becoming a tropical cyclone during the next 48 hours.

Elsewhere, no tropical cyclones are expected through early Saturday morning.


Graphical Tropical Weather Outlook

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List of Central Pacific Outlooks (June 2010-present)