SEVER WEATHER & THUNDER/LIGHTING STORMS
Lightning Outside: Do not stay in open spaces or under tall objects (trees, poles). Move to a
building, or inside a vehicle.
Outside - No Shelter Available: If you are in a group, spread out, keeping people several yards
apart. Avoid water. Crouch down, feet close together with your head tucked down.
Quick facts you should know about tornadoes:
IN THE EVENT THERE IS A TORNADO, THERE IS A BASEMENT IN THE VISITOR CENTER THAT THE PARK RANGERS WILL GUIDE YOU TO. IF YOU ARE IN THE HISTORIC AREA OR ON THE NATURE TRAIL AND CAN NOT MAKE IT SAFELY TO THE VISITOR CENTER FOR PROTECTION, LIE FLAT IN A NEARBY DITCH OR DEPRESSION. DO NOT TRY TO OUTRUN A TORNADO!
- They may strike quickly, with little or no warning.
- They may appear nearly transparent until dust and debris are picked up or a cloud forms in the funnel.
- The average tornado moves Southwest to Northeast, but tornadoes have been known to move in any direction.
- The average forward speed of a tornado is 30 mph, but may vary from stationary to 70 mph.
- Tornadoes can accompany tropical storms and hurricanes as they move onto land.
- Waterspouts are tornadoes that form over water.
- Tornadoes are most frequently reported east of the Rocky Mountains during spring and summer months.
- Peak tornado season in the southern states is March through May; in the northern states, it is late spring through early summer.
- Tornadoes are most likely to occur between 3 pm and 9 pm, but can occur at any time.