Game

EF Catcher

A damage survey team has looked at what a tornado left behind and estimated its strongest gust. Give the EF rating before the next tornado crosses the field. Ten tornadoes; the faster you are, the more you score.

The real scale

The Enhanced Fujita scale: estimated 3-second gust. mph: NOAA Storm Prediction Center: EF scale wind speeds km/h converted by us and rounded.
Rating	mph	km/h
EF0	65–85	105–137
EF1	86–110	138–177
EF2	111–135	179–217
EF3	136–165	219–266
EF4	166–200	267–322
EF5	over 200	over 322

The EF scale is a set of wind estimates (not measurements) based on damage. NOAA Storm Prediction Center: EF scale wind speeds

The wind speeds in the game are made up each round, and the game stops EF5 at 230 mph to keep the numbers sensible; the real EF5 band is simply “over 200 mph”. The EF bands are the Storm Prediction Center’s; km/h are converted by us.