Four-State Tornado Swarm
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|name=. Remove this parameter; the article title is used as the name by default.| Meteorological history | |
|---|---|
| Date | August 15, 1787 |
| Tornado outbreak | |
| Tornadoes | ≥5 |
| Maximum rating | Unrated tornado |
| Duration | 3.5+ hours |
| Overall effects | |
| Casualties | 2 fatalities, ≥15 injuries |
| Damage | Unknown |
| Areas affected | New England |
The Four-State Tornado Swarm was a destructive outbreak of tornadoes in New England on August 15, 1787. At least five separate tornadoes caused major damage in the states of Connecticut, Rhode Island, Massachusetts, and New Hampshire. Two people were killed by a tornado in Wethersfield, Connecticut, and many were injured throughout New England. This event is considered to be the first true tornado outbreak on record.