Overview of the Calumet-El Reno-Piedmont-Guthrie EF5 Tornado – May 24, 2011

One of the most powerful tornadoes in known history occurred during the May 24, 2011 outbreak. This extraordinarily violent twister took nine lives over a 65-mile path. Yet, even with all the accompanying tragedy, this was also a nearly unrivaled success story in terms of public preparedness. The many damage feats caused and the behavior of this event are both historic. In this summary, we cover every aspect of the maelstrom in as much detail as possible and bring light to the amazing stories that accompanied it.

The South Dakota Tornado Outbreak of August 28, 1884

On August 28, 1884, a deadly localized tornado outbreak would unfold across portions of eastern South Dakota. One of these twisters would become the second earliest photographed in history. There are sharp discrepancies over which tornado that day was photographed, and there is no detailed summary of the event in its entirety. In this article, I attempt to solve both of these longstanding unknowns.

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