A typical tornado is about 50 to 100 yards wide.
A typical tornado lasts 1-5 minutes.
A typical tornado is probably a strong EF0 or EF1.
The average tornado lasts about 10 minutes.
10 to 20 mph would be a slow moving tornado. A typical tornado travels at 30-35 mph.
cone prism
The worst tornado on record, the Daulatpur-Saturia tornado that hit Bangladesh on April 26, 1989 was definitely more severe than a typical tornado. This tornado killed 1,300 and left 80,000 homeless. The damage path was 50 miles long, compared with a mile or two for a typical tornado, and was probably much larger and stronger than a typical tornado as well, though no details on that information are available. A typical tornado does not kill and is not strong enough to destroy most homes, though it may be different in Bangladesh where many homes are poorly built.
The average tornado lasts about 10 minutes and travels about 5 miles.
A typical tornado lasts one to five minutes. The longest-lived tornado on record lasted for three and a half hours.
A typical tornado lasts several hours, often more than 5 hours.
1,390 km (870 mi) typical combat ~Wikipedia
the average tornado diameter is 50 yards. Some tornadoes, however are less than ten yards wide, while the biggest can be over two miles wide.
That's a big NO! Tornado is never an ecosystem.It is a weather phenomenon.