Special Marine Warning issued April 20 at 10:21AM EDT until April 20 at 11:45AM EDT by NWS Baltimore MD/Washington DC

Details

For the following areas...
Tidal Potomac from Key Bridge to Indian Head MD...

At 1021 AM EDT, showers were located along a line extending from 14
nm northwest of Key Bridge to 16 nm west of Tidal Basin to 19 nm west
of Alexandria, moving east at 20 knots.

HAZARD...Wind gusts 34 knots or greater and small hail.

SOURCE...Observed wind and hail.

IMPACT...Boaters in small craft could be thrown overboard by
suddenly higher winds and waves capsizing their vessel.

Locations impacted include...
Tidal Basin, Fort Washington, Reagan National Airport, Gunston Hall,
Woodrow Wilson Bridge, Key Bridge, Fort Hunt, National Harbor, and
Alexandria.