Level 0: Thunderstorms unlikely / Gewitter unwahrscheinlich
Level 1: Thunderstorms possible / Gewitter möglich
Level 2: Thunderstorms likely / Gewitter wahrscheinlich
Level 3: Severe thunderstorms possible / Unwetter möglich
Level 4: Severe thunderstorms likely / Unwetter wahrscheinlich

• 2015.09.06. - ESC Overview with JONAS and a severe storm
• [DE/EN] - NEAR HURRICANE-FORCED GUSTS in Berlin
• Strong thunderstorm in W Germany and far E Netherlands
• Nordrhein
• Germany Thunderstorm Map