Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Park Weather & Safety

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LightningCast

AI-predicted lightning probability for the next 60 minutes (GOES-R).

If You Can't Get to Shelter

You are NOT safe outside during a thunderstorm. These tips only slightly reduce risk:

Avoid open fields, hilltops, and ridge tops.
Stay away from tall, isolated trees and objects.
In a forest, move to a lower stand of trees.
If in a group, spread out.
Camp in valleys or ravines, not open areas.
A tent offers no protection from lightning.
Stay away from water, wet ropes, and metal objects.

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