Forecast for station KIAD, forecast created on 280133Z, covering the period from 05/28 02:00Z to 05/29 06:00Z... Forecast calls for light rain. vicinity thunderstorms. Wind from heading 300° at 11 knots. Visibility 5 miles. Broken cumulonimbus clouds at 4500 feet... From 05/28 03:00Z expect mist. Wind from heading 180° at 3 knots. Visibility 6 miles. Scattered clouds at 5000 feet... From 05/28 08:00Z expect mist. Wind from heading 190° at 3 knots. Visibility 3 miles. Scattered clouds at 1500 feet. Scattered clouds at 25000 feet... From 05/28 13:00Z expect wind from heading 220° at 8 knots. Visibility unlimited. Few clouds at 3500 feet... From 05/28 18:00Z expect wind from heading 190° at 7 knots. Visibility unlimited. Scattered clouds at 5000 feet...