What the model shows
A tornado 500 meters across August look more imposing than one 150 meters across. A broader circulation can expose a larger area to damaging winds, but width by itself does not reveal the highest wind speed.
In a simplified physical picture, lower pressure near the tornado core and higher pressure outside it help drive air inward. Rotation and other storm-scale processes turn that pressure pattern into intense winds. A greater pressure difference can support faster flow, although real tornado behavior is more complicated than a single relationship.
Width and intensity are not the same
A relatively narrow tornado can contain extremely fast winds, while a broad tornado is not automatically more intense. Width does matter to the potential damage footprint: when other conditions are similar, a larger circulation can affect more buildings, trees and infrastructure along its path.
The Enhanced Fujita scale assigns ratings from EF0 to EF5 using observed damage and engineering-based estimates of the winds likely to have caused it. It is a damage scale, not a direct measurement of a tornado’s width or appearance.
Safety comes before observation
This activity is for concept exploration only. During a tornado warning, use guidance from local emergency authorities and move promptly to the safest available shelter. Do not approach or chase a storm to compare it with this model.
Why this is a simplification
Actual tornado damage depends on wind speed, duration, debris, construction quality, terrain and what lies in the path. Damage surveys also rely on available indicators, so a rating does not capture every feature of a storm. The controls below isolate two variables to make their different roles easier to compare.