On November 7, 1995, an outbreak of 40 tornadoes affected the Southeast. 28 of these tornadoes occurred in the state of South Carolina. This summary looks at what is officially the strongest, an F4 that hit near the town of Marion. The F4 rating is based on a 150-200 pound church bell that was moved 400-yards. Thomas Grazulis in Significant Tornadoes believes this an F2 tornado.
In this summary, we look at an obscure F4 tornado that moved through portions of northern Virginia. It is one of the most powerful tornadoes in the Baltimore-Washington area, and officially one of only two F4s in the state.
11 tornadoes struck parts of the High Plains on August 26, 2007. The strongest was a deadly EF4 that tore through the town of Northwood. In this summary, we look at the three significant tornadoes of the outbreak and the damage they caused.
On the afternoon of August 19, 1890, four tornadoes occurred in Pennsylvania. The focus of the summary looks at the two most impactful. An F3/borderline F4 tornado crossed through parts of Columbia and Luzerne County. 4 people were killed as it swept away several homes. As that tornado dissipated another tornado formed and plowed into Wilkes-Barre. 16 people were killed as this tornado damaged or destroyed over 400 buildings in the city.
On August 7, 2010, 11 tornadoes were reported by the SPC. This summary looks at the most violent, an EF-4 that affected parts of North Dakota and Minnesota. This photogenic tornado was captured on video as it leveled a farm in Wilkin County, MN.
It was a day that came to be known as “Black Friday”. On July 31, 1987, one of the most powerful tornadoes in Canadian history struck Edmonton, Alberta and parts of Strathcona County. It is the deadliest known tornado for Alberta and the second-deadliest for the country. This significant tornado was given a rating of F4 with maximum winds estimated at 260mph.
18 tornadoes ravaged Virginia on the Afternoon of August 6, 1993. This summary looks at the most violent tornado, an F4 that hit Petersburg. Old Towne Petersburg and a large shopping center in Colonial Heights were demolished. Three women were killed in the destruction of a Walmart. The tornado caused $47.5 million in damage, the costliest in Virginia history.
On July 21, 1987, an F4 tornado tracked 24 miles across the Teton Wilderness into Yellowstone National Park. Over 1,000,000 trees were knocked down as the tornado slashed its way across mountain tops up to 10,000 feet high, and through valleys. This is the highest altitude in the US that a violent tornado (F4/F5) has ever occurred.