Originally, the tornado was deemed an EF-3 on the Enhanced Fujita scale based on the damage it had done. But now, says the National Weather Service, the El Reno tornado has been upgraded to an EF-5.

Scientists now have a way to understand the fierce tornado that killed veteran stormchaser Tim Samaras in 2013 in El Reno, Oklahoma. The May 31 storm was the largest ever recorded, and one of the ...

Wunderground has large 2 Mb animations of the high-resolution radar reflectivity and Doppler velocity Level II radar data, with the damage path of the May 31, 2013 El Reno tornado overlaid.

No matter how big or strong, tornadoes are extremely dangerous. But back on May 13, 2013, the El Reno tornado took the cake for being the widest tornado ever record. At its widest point ...

The tornado that touched down near El Reno, Okla., last week has been upgraded to an EF-5, with winds near the surface of 296 mph, the National Weather Service in Norman said Tuesday. At 2.6 miles ...

Tornadoes can get extremely large, and that's terrifying. Watch this video to learn about the largest tornado ever known to have formed, the El Reno tornado in 2013. Colorado Area Evacuated ...

EL RENO, Oklahoma -- The El Reno Fire Department and Police Department, along with first responders from Canadian County and surrounding areas continue assessing damage caused by last night's ...

A strong tornado struck El Reno, Oklahoma Friday evening ... door to indicate that the room has been searched for victims. A large part of the mobile home park was totally demolished.

NEARLY ONE YEAR AGO, EL RENO OKLAHOMA WAS HIT WITH THE LARGEST RECORDED TORNADO. THE STORM KILLED 21 ... BEFORE THE STORM ABSOLUTELY PERFECT FOR BIG, SUPER CELL, MULTI VORTEX TYPE TORNADOES." ...

EL RENO, Oklahoma -- The El Reno Fire Department and Police Department, along with first responders from Canadian County and surrounding areas continue assessing damage caused by last night's ...