The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.

The Enhanced Fujita Scale or EF Scale, which became operational on February 1, 2007, is used to assign a tornado a 'rating' based on estimated wind speeds and related damage.

The path of the EF2 tornado. The tornado's general path crossed Markham Woods Road in Longwood, touched down, and then crossed Interstate 4 near FOX 35 Orlando in Lake Mary before lifting.. The ...

2 天之前 · An EF2 tornado touched down in Lake Mary, Florida, on Monday morning with peak winds of 155 mph, comparable to a Category 2 or 3 hurricane. FOX 35 was on the air when the tornado likely was found ...

Next on the Enhanced Fujita Scale is the EF2 tornado. This category of tornado is rarer than EF0s and EF1s, but accounts for more deaths and property damage than both combined. With winds between 111 and 135 mph (178–217 km/h), considerable damage is often left behind.

The EF Scale will still rate tornado categories from zero to five, but the ranges of wind speed in each category are now more accurate. The EF Scale takes into account more variables than the original F Scale did when assigning a wind speed rating to a tornado.

2 天之前 · The National Weather Service confirmed that the tornado, which packed winds of up to 115 mph, touched down around 9:40 a.m. in Lake Mary and moved northeast at 30 mph, passing through Sanford.

categorize each tornado by its intensity and its area; estimate a wind speed associated with the damage caused by the tornado; Dr. Fujita and his staff showed the value of the scale's application by surveying every tornado from the Super Outbreak of April 3-4, 1974.

1 天前 · Florida EF2 tornado hit Seminole County with peak winds around 120 mph. The National Weather Service confirmed an EF2 tornado hit Seminole County about 9:35 a.m., Monday, March 10.

Enhanced F Scale for Tornado Damage. An update to the the original F-scale by a team of meteorologists and wind engineers, to be implemented in the U.S. on 1 February 2007.