Forecast for station KDCA, forecast created on 290520Z, covering the period from 05/29 06:00Z to 05/30 06:00Z... Forecast calls for wind from heading 200° at 7 knots. Visibility unlimited. Clear... From 05/29 13:00Z expect wind from heading 200° at 10 knots. Visibility unlimited. Scattered clouds at 3000 feet... From 05/29 17:00Z expect wind from heading 200° at 12 knots. Visibility unlimited. Broken clouds at 4000 feet... From 05/29 21:00Z expect vicinity thunderstorms. Wind from heading 210° at 13 knots. Visibility unlimited. Broken cumulonimbus clouds at 4000 feet... From 05/30 05:00Z expect wind from heading 260° at 6 knots. Visibility unlimited. Broken clouds at 6000 feet. Overcast clouds at 12000 feet...