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  2. Enhanced Fujita scale - Wikipedia

    en.wikipedia.org/wiki/Enhanced_Fujita_scale

    The old scale lists an F5 tornado as wind speeds of 261–318 mph (420–512 km/h), while the new scale lists an EF5 as a tornado with winds above 200 mph (322 km/h), found to be sufficient to cause the damage previously ascribed to the F5 range of wind speeds.

  3. Beaufort scale - Wikipedia

    en.wikipedia.org/wiki/Beaufort_scale

    Wind speed on the Beaufort scale is based on the empirical relationship: [6] v = 0.836 B 3/2 m/s; v = 1.625 B 3/2 knots (=) where v is the equivalent wind speed at 10 metres above the sea surface and B is Beaufort scale number.

  4. Tornado intensity - Wikipedia

    en.wikipedia.org/wiki/Tornado_intensity

    A diagram of the Fujita scale as it relates to the Beaufort scale and the Mach number scale. For many years, before the advent of Doppler radar, scientists relied on educated guesses for tornado wind speed. The only evidence indicating wind speeds found in the tornado was the damage left behind by tornadoes that struck populated areas.

  5. What is the Enhanced Fujita scale? What to know about EF ...

    www.aol.com/enhanced-fujita-scale-know-ef...

    EF2: 111-135 mph. EF3: 136-165 mph. EF4: 166-200 mph. EF5: Over 200 mph. EF5 tornadoes in Oklahoma. Since 1905, NWS has tracked 13 EF5 tornadoes in Oklahoma, including the devastating 2013 Moore ...

  6. The Enhanced Fujita scale measures how strong tornadoes ... - AOL

    www.aol.com/enhanced-fujita-scale-measures...

    The strength of tornadoes is rated on the Enhanced Fujita, or EF, Scale. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to ...

  7. NWS: Two tornadoes in downtown Vero Beach as more ... - AOL

    www.aol.com/nws-two-tornadoes-downtown-vero...

    EF Scale for tornadoes. The Enhanced Fujita Scale classifies tornadoes into the following categories: EF0: 65 to 85 mph. EF1: 86 to 110 mph. EF2: 111 to 135 mph. EF3: 136 to 165 mph. EF4: 166 to ...

  8. Fujita scale - Wikipedia

    en.wikipedia.org/wiki/Fujita_scale

    The new scale more accurately matches wind speeds to the severity of damage caused by the tornado. [8] Though each damage level is associated with a wind speed, the Fujita scale is effectively a damage scale, and the wind speeds associated with the damage listed are not rigorously verified.

  9. Enhanced Fujita scale used to measure tornadoes' intensity ...

    www.aol.com/news/enhanced-fujita-scale-used...

    The Enhanced Fujita scale measures a tornado's intensity on a scale of 1 to 5 based on its wind speed estimates and resulting damages.