EF Unknown is "a final caveat that has been added adjacent to the scale in recent years," the Weather Channel reports. It rates a tornado sighted and documented by storm chasers or the public ...

The town of Sunfield, Illinois, about 65 miles southeast of St. Louis, was wiped out by one of the 25 tornadoes. It was later rated F5 after the Fujita scale was implemented in 1971. Incredibly ...

A viewer sent a video of Saturday's tornado forming in the parking lot of the Mt. Hermon shopping center. Myrl Wallace's Dash Cam video shows winds starting to pick up slowly, then suddenly ...

The town of Sunfield, Illinois, about 65 miles southeast of St. Louis, was wiped out by one of the 25 tornadoes. It was later rated F5 after the Fujita scale was implemented in 1971. Incredibly, only ...

In late April, a slow-moving storm over Texas and Oklahoma spawned an outbreak of 39 tornadoes. That event was just a fraction of the more than 400 tornadoes reported that month, the highest ...

Gusty winds and flooding are the most likely hazards. A brief isolated tornado is also possible with the window of greatest concern from 6 a.m. to 9 a.m. Flooding will be the biggest concern North ...

Imai's tenure at McLaren began in 2009 after he transitioned from Bridgestone, a leading supplier of F1 tires. His background in this field proved instrumental to McLaren's decisions on the race ...

It was classified as a weak E-F1, which the National Weather Service considers a moderate tornado on its scale from EF-0 to EF-5. While tornadoes aren’t regular occurrences in the Bay Area ...

A video captured a tornado ripping through a shopping center parking lot near Santa Cruz in California over the weekend. The Santa Cruz Sentinel reported that the tornado in Scotts Valley on ...