A tornado earns an F1 or EF1 rating if it causes moderate damage. This may include badly damaged roofs on houses, broken windows, snapped trees, and trailers overturned or partially destroyed.
F1 is a rating on the Fujita scale, a system which uses the damage a tornado does to sort it int one of six categories strength categories ranging from F0 at the weakest to F5 at the strongest.
An F1 rating indicates a relatively weak tornado that badly damages the roofs of houses, breaks windows, and overturns trailers.
Usually not all that pat overall, but it can vary depending on where it hits. An F1 tornado will break windows and severely damage the roof in a typical house. It may remove a roof that it is not strongly attached. Such a tornado may destroyed weaker structures such as barns and garages, and trailer homes may be overturned or partially destroyed. Fatalities are rare in F1 tornadoes, with only about 1% being killers.
F1 is the second lowest category on the Fujita scale (F0 to F5). An F1 tornado causes moderated damage, including badly damaged roofs broken windows, and badly damaged or overturned trailers.
The scale runs from F0 (not very bad at all) F5 (incredible destruction) so an F1 would be considered a relatively weak tornado.
It is possible, but it is a very bad idea. An F1 tornado can carry dangerous debris and the winds can pick up and throw a person. Additional threats may come from the parent thunderstorm in the form of lightning and large hail. Finally, it is impossible to tell exactly how strong a tornado is before it hits and even then a tornado can strengthen rapidly.
F1 tornadoes can kill, but they rarely do. So an F1 tornado is unlikely to kill you, but you should still take safety precautions to reduce your risk, especially since you can't tell how strong a tornado is before it hits.
Estimated wind speeds for an F1 tornado on the original Fujita Scale are 73-112 mph. These were found to be inaccurate, though, and were adjusted to 86-110 mph for an EF1 tornado.
Yes. F1 tornadoes rarely kill, but deaths have been recorded. In all they account for about 4% of tornado deaths in the United States.
In most cases an F5 tornado will be larger than an F1. However, tornado ratings are a measure of the strength of a tornado, not its size. F5 is the strongest category, and such tornadoes are usually very large, but a few have been fairly small. Conversely, F1 is the second lowest rating (F0 is the lowest) and such tornadoes are generally small, but some have been huge.
No. For one thing, Fujita (F) scale ratings measure the strength of a tornado, not its size. F1 is the second weakest rating a tornado can get (F0 is the weakest). Weak tornadoes such as this are generally small, but occasionally can be large. The highest rating a tornado can get is F5.
Yes. Newport, Arkansas was hit by an F0 tornado in 1992 and an F1 tornado in 1999.
Yes. There was an F1 tornado in Cahokia mounds on October 6, 1955..
F1 winds speeds are 71-112 miles per hour.
Yes. Wolcott was hit by an F1 tornado on July 3, 1996.
An F1 tornado can break windows, strip the surface from a roof and heavily damage a mobile home. Barns will likely be destroyed. Poorly secured roofs may be torn off.