National Weather Service Forecast Office

This thunderstorm over southeast Indiana was not severe, but produced hundreds of cloud-to-ground lightning strikes within just a few minutes. Note that the National Weather Service will only issue a warning for a thunderstorm if it is producing strong winds, hail, or a tornado - a warning will not be issued for lightning alone. However, just because the NWS has not issued a warning does not mean that a thunderstorm should not be taken seriously. Frequent cloud-to-ground lightning is extremely dangerous. Related NWS Product: None Safety Note: Lightning is extremely dangerous - if you hear thunder, you are close enough to a thunderstorm to be struck. Get to a safe shelter (fully enclosed) or a vehicle immediately. It is never safe to be out in the open during a thunderstorm. If you absolutely cannot get to a shelter, you should protect yourself by avoiding tall objects, anything metal, and crouch on the ground with only your feet touching the surface. Keep in mind these actions should only be a last resort since they will not keep you safe. This is why it's very important to have a quick means to safety any time you are outdoors when thunderstorms are forecast.
View lightning strikes from this storm (over 1500 strikes in one hour)	What's going on in this picture?
Storm Spotters: How to report this? Learn more about lightning safety	Storm reports from 7/18/07 (SPC)