BOATsmart! USA Knowledge Base

Module 03 - Getting on the Water

Using Your Local Weather and Water Reports Continued

There are four warning signs that are used during the day and four warnings lights that are used at night:

Small Craft Advisory

A warning of weather conditions that may be dangerous for small boats. This warning indicates winds of at least 18 knots (24 mph) and rough, wavy conditions.

Gale Warning

A warning of strong winds within the range of 34-47 knots (39-54 mph).

Storm Warning

A warning of winds within the range of 48-63 knots (55-73 mph).

Hurricane Warning

A warning that indicates hurricane winds of 64 knots (74 mph) and higher. This warning identifies that a combination of dangerously high water and rough seas are expected to impact a specified coastal area.