Lightning Detection

When Lightning Strikes
Lightning is a violent act of nature and the City of Irving recognizes that the threat of injuries or death from lightning strikes cannot be entirely eliminated.

Lightning takes the shortest path. It hits the highest object, a tall tree or building, a tower or a person standing alone in a flat field. Lightning can strike many miles away from its parent storm. So even if you are not right in the middle of a thunderstorm, but one is near, be prepared. If your hair starts standing on end, or you taste copper in your mouth, you are about to be struck by lightning.

Detection Versus Prediction
Lightning detection systems detect the electromagnetic signatures that are the by-product of actual lightning strikes. Lightning prediction systems sense and evaluate the sifts and changes in the electrostatic field that precede the occurrence of an actual lightning strike.

Thor Guard Lightning Prediction System
The Thor Guard Lightning Prediction System has been installed to provide protection from lightning disasters for the public. Precautions such as a Lightning Prediction System can minimize the potential for lightning related injuries.

When the System Activates
Listen for the Sound
When the Thor Guard Warning System 15-second horn blast sounds, the outdoor facility must be cleared of all patrons as soon as practical. Also, all persons must seek and remain in buildings or vehicles, not dugouts. All persons must wait until the weather clears and the All Clear Signal sounds (3 short horn blasts) before patrons can resume play.

Seek Shelter
It is recommended that when possible, park patrons and staff seek and remain in a sheltered area. If such shelter is unavailable, patrons are encouraged to get into their vehicles. A tree or a dugout should not be used for shelter.

Avoid Metal Objects
Individuals should keep away from metal objects such as fences, umbrellas, and park shelters.

Policy Information
This policy shall apply to programs and facilities operated by the City of Irving or its affiliate groups, such as Irving All Sports Association and the North Lake Aquatic Center. Activities may only resume once the All Clear Signal Sounds.