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post #7 of Old 05-13-2013
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Re: Weather Forecasts (Chesapeake in this case)

The definition of SCA depends on the area (google it). On the Chesapeake and Potomac it is :

Small Craft Advisory

Small Craft Advisories are issued for the Tidal Potomac River and the Chesapeake Bay when one or both of the following conditions is expected to begin within 36 hours:

1) sustained winds of 18 knots to 33 knots


2) frequent gusts (duration of two or more hours) between 18 knots and 33 knots.


3) waves of 4 feet or higher

Second, you really need to use NOAA wind speeds. Yes, this was a minimal SCA. Additionally, your feeling on the subject might be different at the mouth of the Potomac in a sailing dingy with a green crew. It is just an advisory. For cruising boats it mostly means clear the table, just in case.

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