Kinzua Bridge, PA F1 Tornado – July 21, 2003
On July 21, 2003, a derecho moved across portions of Ohio, Pennsylvania, into New York and New England. This summary delves into the most notable tornado this day, which toppled the Kinzua Bridge Viaduct.
Edmonton, Alberta F4 Tornado – July 31, 1987
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.
Teton Wilderness, WY F4 Tornado – July 21, 1987
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.
Marion, ND F4 Tornado – July 18, 2004
On July 18, 2004, 8 tornadoes touched down in North Dakota. This summary looks at the strongest, an F4 that annihilated a farmstead near Marion. This tornado produced what is arguably among the most intense damage from any tornado in the 2000s. Check out this premium summary by becoming a member!
Ellisburg, PA F3 Tornado – July 21, 2003
On July 21, 2003, a derecho moved across portions of Ohio, Pennsylvania, into New York and New England. Per the SPC, it spawned 20 tornadoes. The focus of this summary is of the strongest tornado of the outbreak, the Ellisburg PA, F3. Two people were injured when the funnel leveled a farm.
Lake Gervais, MN F3 Tornado – July 13, 1890
This summary takes a look at an F3 tornado from 1890 that crossed through parts of Ramsey County, MN. The most extensive damage was near Lake Gervais.
Campbelltown, PA F3 Tornado – July 14, 2004
On July 14, 2004, there were 11 tornadoes reported by the SPC. This summary takes a look at the strongest tornado of the day, an F3 that hit Central Pennsylvania. 100 homes were damaged or destroyed in the town of Campbelltown.
Ashley, ND-Long Lake, SD F3 Tornado – July 31, 1966
Eight tornadoes were recorded on July 31, 1966 across the Dakotas. The strongest was later rated F3. It tracked from south of Ashley, ND and into North Dakota, north of Long Lake.
Bloomer, WI F4 Tornado – July 30, 1977
This devastating event began at Cooks Valley, about 2 miles west of Bloomer. The tornado clipped the NW part of the town. Approximately 50 homes were demolished. 100-150 other homes and businesses sustained damaged. The tornado traveled a total of 19-20 miles.
Deer Park, TX F2 Tornado – July 29, 1971
A small tornado given a rating of F2 hit a mobile home park in the Houston suburb of Deer Park during the afternoon time of July 29, 1971.