Tempest warning of heavy thunderstorms: In the southern North Rhine-Westphalia locally heavy thunderstorms with violent heavy rain and hail. Warning of thunderstorms: In the mountain country in the west, southwest and partially also in the center individual thunderstorms, thereby heavy rain over 20 litres per square meter within shortest time and gusts of wind. Last actualization Tuesday, 14.04.09, 18,56 o'clock Next actualization at the latest Tuesday, 14.04.09, 22,30 o'clock.