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    • Sudden and violent windstorm

      • A white squall is a sudden and violent windstorm at sea which is not accompanied by the black clouds generally characteristic of a squall. It manifests as a sudden increase in wind velocity in tropical and sub-tropical waters, and may be a microburst.
      en.wikipedia.org/wiki/White_squall
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  2. en.wikipedia.org › wiki › White_squallWhite squall - Wikipedia

    A white squall is a sudden and violent windstorm at sea which is not accompanied by the black clouds generally characteristic of a squall. It manifests as a sudden increase in wind velocity in tropical and sub-tropical waters, and may be a microburst. [1]

    • What Are Squalls?
    • Squall Distribution
    • Knockdowns
    • Coping Tactics

    The World Meteorological Organisation defines squalls as ‘a sudden increase of wind speed of at least 8m/s, the speed rising to 11m/s or more, and lasting for at least one minute’. In other words, a 16-knot increase. Squalls are caused by updraughts of air into the atmosphere. They are smaller and more localised than cold or warm fronts, but bigger...

    Squalls are often associated with tropical tradewind sailing because they rely on a ready supply of warm, moist air in order to develop. In the tropics they travel westwards with the easterly tradewinds. There is evidence that ocean squalls in the North Atlantic are more prevalent on the eastern side of the ocean but anecdotally most sailors taking...

    Aside from shredding your spinnaker, one of the biggest hazards of squalls is a knockdown. Angle of heel is a key metric in determining how vulnerable you are to a squall: if you’re already heeled over at 20° then a big squall is more likely to knock you over to a severe angle. This is because the pressure on the sails increases disproportionately ...

    Given that we can’t control the mean wind speed, our only option when a squall approaches is to behave as though we already have 20-25 knots of apparent wind: in other words put in a reef or two, furl some headsail and make sure the helm is alert to wind shifts. Most people choose to run before a squall keeping the apparent wind speed down and hold...

    • Yachting World
  3. May 3, 2024 · A white squall is a sudden, powerful gust of wind at sea that comes up without warning. They usually present as whirlwinds, and can occur in seemingly clear weather in the tropics,...

  4. en.wikipedia.org › wiki › SquallSquall - Wikipedia

    In the Pacific Northwest, a squall is a short but furious rainstorm with strong winds, often small in area and moving at high speed, especially as a maritime term.

  5. A squall is a sharp increase in wind speed by 8 m/s or more, for a duration of more than 1-2 minutes. The average wind speed for the period of a squall should be higher than 11 m/s. You can see that the definition of a squall is very formal: just a set of numbers.

  6. Nov 18, 2020 · How to cope with gusts and squalls. Spikes in wind strength can range from a blustery sail to survival conditions. Dag Pike explains how to predict which it will be and what to do when the wind hits. Blustery conditions can make life uncomfortable, so spotting and preparing for gusts and squalls is key.

  7. Sep 12, 2018 · The official definition for a squall, according to the National Oceanic and Atmospheric Administration (NOAA) is a “strong wind characterized by a sudden onset in which the wind speed increases at least 16 knots and is sustained at 22 knots or more for at least one minute.”

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