A098517 Minimum wind speed in mph for a tornado of Fujita (or Fujita-Pearson) scale F_n.

40, 73, 113, 158, 207, 261

Offset

0,1

Comments

Sources give 318 mph as the upper limit of an F5 tornado. The Tornado Project link also shows an F6, "Inconceivable Tornado", of 319-379 mph.

Links

Table of n, a(n) for n=0..5.

National Weather Service, Storm Prediction Center, Fujita Tornado Damage Scale.

K. L. Ross, The Beaufort Wind Force Scale, The Saffir-Simpson Hurricane Scale and the Fujita Scale of Tornado Intensity.

Tornado Project; St. Johnsbury, Vermont, The Fujita Scale of Tornado Intensity.

Example

An F3 tornado has winds of at least 158 mph.

Crossrefs

Cf. A097403 (Beaufort scale), A098516 (Shaffir-Simpson scale).

Sequence in context: A043936 A251123 A064635 * A260177 A260170 A260544

Adjacent sequences: A098514 A098515 A098516 * A098518 A098519 A098520

Keyword

fini,full,nonn

Author

Rick L. Shepherd, Sep 11 2004

Status

approved