Flood Return Period Calculator

Severe Thunderstorms and Flash Flooding Threats Continue Saturday in the Plains and Midwest; Hot Holiday for the Southeast

Another day with severe storms, some significant with very large hail and tornadoes, and very heavy rain are expected through Saturday across the Plains and Midwest. In the Ohio Valley, isolated severe thunderstorms with damaging winds and large hail is possible. Heavy rain may produce flooding for the interior Northeast and in the northern California mountains. Building heat wave in the Southeast Read More >

Flood Return Period Calculator

Though this calculator is worded for the flood event return period it would work for any extreme weather event.