Yes. F1 tornadoes rarely kill, but deaths have been recorded. In all they account for about 4% of tornado deaths in the United States.
Yes. Tornadoes of all intensities have injured and killed people.
F1 tornadoes rarely kill, and when they do the death toll is rarely higher than 1 or 2. However, the deadliest F1 tornado to occur in the U.S. since records keeping began in 1950 killed 16 people. The deaths occurred when the tornado capsized a boat on Pomona Lake in Kansas. A similar, but far deadlier case occurred in China in 2015 when an EF1 tornado capsized a cruise ship on the Yangtze river, killing 442 people.
The Hallam, Nebraska tornado of 2004 killed 1 person. An additional 38 people we injured.
Yes, on June 28, 1982 Fairfield, Alabama was hit by an F1 tornado. 1 person was injured.
158 people were killed by the Joplin tornado. Another tornado on the same day killed 1 person in the Minneapolis area.
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.
The Goderich, Ontario tornado of 2011 killed 1 person.
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.
The last known killer tornado, as of October 15, 2012 was an F2 in Wycinki, Poland that killed person.
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.
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.