There’s a good chance that you’ve already seen the incredible footage: a tornado forming on the west side of Springfield, MA at the outset of a storm that killed four people earlier this week (video above).

The video has been featured on “The Early Show,” “Good Morning America,” and other national news shows but few are aware of where the dramatic footage originated. It turns out that it came from Springfield CBS-affiliate WSHM.

The Meredith-owned station was doing live tornado coverage from the Monarch Tower in downtown Springfield when a tornado took shape nearby. The station’s rooftop camera captured the dramatic video as chief meteorologist Brandon Butcher warned viewers about the severity of the storm happening outside. Read more