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What is a Tropical Storm Watch or Warning?

By Ericka Watson, About.com

Definition:

A tropical storm warning is issued when the following conditions are imminent within 24 hours or are occurring: storm surge, coastal flooding, river flooding and winds of 39 mph to 73 mph. A tropical storm watch is issued when these conditions are possible within 36 hours, but it doesn't mean they will occur.

Further reading about tropical storm warning/watches:

Marine Weather Advisories, Watches and Warnings

Before Boating Know Your Marine Weather Forecast

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