Once lightning is detected and felt to be within 6 miles (per a lightning detector and/or the Flash-to-Bang test*), all individuals should be cleared from the field and in a safe location. Outdoor activities may not resume until 30 minutes after the last sound of thunder or last flash of lightning.
Safe locations:
A solid building with plumbing and electricity
Motor vehicles with metal roofs and the windows rolled up:
Do not touch the metal framework of the vehicle, the steering wheel, ignition keys, or radio
Unsafe locations:
Small covered shelters outside, such as dugouts, bleachers, rain shelters, golf shelters, picnic shelters
Areas connected to or near light poles, towers and fences
Any location which is the highest point in the area
*Flash-to-bang test:
If there is less than 30 seconds between the sight of lightning and the sound of thunder, lightning is within 6 miles