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  2. Beaufort scale - Wikipedia

    en.wikipedia.org/wiki/Beaufort_scale

    Sir Francis Beaufort. The scale that carries Beaufort's name had a long and complex evolution from the previous work of others (including Daniel Defoe the century before). In the 18th century, naval officers made regular weather observations, but there was no standard scale and so they could be very subjective — one man's "stiff breeze" might be another's "soft breeze"—: Beaufort succeeded ...

  3. Gale warning - Wikipedia

    en.wikipedia.org/wiki/Gale_warning

    Gale warning flags (USA) A gale warning is an alert issued by national weather forecasting agencies around the world in an event that maritime locations currently or imminently experiencing winds of gale force on the Beaufort scale. [1]

  4. Gale - Wikipedia

    en.wikipedia.org/wiki/Gale

    The most common way of describing wind force is with the Beaufort scale [3] which defines a gale as wind from 50 kilometres per hour (14 m/s) to 102 kilometres per hour (28 m/s). It is an empirical measure for describing wind speed based mainly on observed sea conditions.

  5. Glossary of nautical terms (A–L) - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_nautical_terms...

    Beaufort scale A scale describing wind speed, devised by Admiral Sir Francis Beaufort in 1808, in which winds are graded by the effects of their force on the surface of the sea or on a vessel (originally, the amount of sail that a fully rigged frigate could carry).

  6. Beaufort Wind Scale - Wikipedia

    en.wikipedia.org/?title=Beaufort_Wind_Scale&...

    Retrieved from "https://en.wikipedia.org/w/index.php?title=Beaufort_Wind_Scale&oldid=17572019"

  7. Tropical Cyclone Wind Signals - Wikipedia

    en.wikipedia.org/wiki/Tropical_Cyclone_Wind_Signals

    PAGASA, thus, amended the TCWS by adjusting the wind intensity ranges per signal level based on the Beaufort wind force scale, which empirically assigns a number from 0 to 12 to measure wind speed. As a result, the wind intensity ranges in the modified TCWS parallels that of the revised tropical cyclone intensity scale, i.e. each signal level ...

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Meteorological instrumentation - Wikipedia

    en.wikipedia.org/wiki/Meteorological_instrumentation

    In 1742, Anders Celsius, a Swedish astronomer, proposed the 'centigrade' temperature scale, the predecessor of the current Celsius scale. [3] In 1783, the first hair hygrometer is demonstrated by Horace-Bénédict de Saussure. In 1806, Francis Beaufort introduced his system for classifying wind speeds. [4]