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.
An F1 tornado is considered weak, with wind speeds ranging from 73 to 112 mph. Damage caused by an F1 tornado can include broken tree branches, shingles blown off roofs, and overturned outdoor furniture. While it is not as destructive as stronger tornadoes, it can still pose a threat to people and property.
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.
An F5 tornado does not form directly from an F1 tornado. Tornado intensity is determined by the Enhanced Fujita Scale based on wind speeds and damage. It is possible for a tornado to rapidly intensify due to various atmospheric conditions, leading to an increase in intensity from an F1 to an F5 tornado.
F1 winds speeds are 71-112 miles per hour.
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.
On the original Fujita scale the top wind es for an F1 tornado were set at 112 mph. Winds estimates on the more accurate Enhanced Fujita scale were adjusted for all categories, but the upper bound for anEF1 tornado was shifted only slightly to 110 mph.
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. High point was hit by an F1 tornado in 1957 and an EF3 tornado in 2010.