Gale Warning

* WHAT...Southwest winds 15 to 20 kt with gusts up to 40 kt in the morning, turning out of the west-northwest by late morning in to the afternoon around 20 to 30 kt with gusts up to 40 kt. * WHERE...Tidal Potomac from Key Bridge to Indian Head MD. * WHEN...From 6 PM this evening to 1 AM EST Saturday. * IMPACTS...Strong and rapidly shifting winds will cause hazardous waves which could capsize or damage vessels. * ADDITIONAL DETAILS...Strong southwest winds accompanying a squall line will bring brief Gale-force winds early Friday morning. This will be followed by a brief drop in winds in the mid-morning hours before winds jump back up to Gale-force, but this time out of the west-northwest by the afternoon.