Storm Force Ten Storm Force Ten Storm Force Ten is an album by British folk rock band Steeleye Span, the band's 10th effort, released in 1977. Until their 2013 album "Wintersmith", released 36 years after "Storm Force Ten", this album was the band's last production to reach the charts, topping out at 191 on Billboard's Pop charts. After "Rocket Cottage", Bob Johnson and Peter Knight left the band. As there was still a contractual obligation, they invited Martin Carthy back again. Back in 1971 when Martin Carthy had joined he had recommended John Kirkpatrick but they decided on fiddler Peter Knight instead. This
Fujita scale and the wind speeds associated with the damage listed aren't rigorously verified. The Enhanced Fujita Scale was formulated due to research which suggested that the wind speeds required to inflict damage by intense tornadoes on the Fujita scale are greatly overestimated. A process of expert elicitation with top engineers and meteorologists resulted in the EF scale wind speeds, however, these are biased to United States construction practices. The EF scale also improved damage parameter descriptions. The original scale as derived by Fujita was a theoretical 13-level scale (F0–F12) designed to smoothly connect the Beaufort scale and the Mach number scale.