Derecho - Dec 15, 2021 derecho.. What makes this event historic? It occurred over areas unusually far north and also brought tornadoes to areas never seen tornadoes in December before this. The MDT risk was issued ahead of time on Day 1, and the record high number of tornadoes that day.

5:42am PST - January 20th, 2022

Dec 15, 2021 derecho.. What makes this event historic? It occurred over areas unusually far north and also brought tornadoes to areas never seen tornadoes in December before this. The MDT risk was issued ahead of time on Day 1, and the record high number of tornadoes that day.

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TotallyNotWx (@TotallyWeather)