| Beaufort wind force scale | | Specifications and equivalent speeds | Beaufort wind scale | Limits of wind speed | Wind description | Probable wave height in metres | Sea description | Knots | m/s | 0 | <1 | 0-0.2 | Calm | - | Calm (glassy) | 1 | 1 to 3 | 0.3-1.5 | Light air | 0.1 | Calm (rippled) | 2 | 4 to 6 | 1.6-3.3 | Light breeze | 0.2 | Smooth (wavelets) | 3 | 7 to 10 | 3.4-5.4 | Gentle breeze | 0.6 | Slight | 4 | 11 to 16 | 5.5-7.9 | Moderate breeze | 1 | Slight-Moderate | 5 | 17 to 21 | 8.0-10.7 | Fresh breeze | 2 | Moderate | 6 | 22 to 27 | 10.8-13.8 | Strong breeze | 3 | Rough | 7 | 28 to 33 | 13.9-17.1 | Near gale | 4 | Rough-Very rough | 8 | 34 to 40 | 17.2-20.7 | Gale | 5.5 | Very rough-High | 9 | 41 to 47 | 20.8-24.4 | Severe gale | 7 | High | 10 | 48 to 55 | 24.5-28.4 | Storm | 9 | Very High | 11 | 56 to 63 | 28.5-32.6 | Violent storm | 11.5 | Very High | 12 | 64+ | 32.7+ | Hurricane | 14+ | Phenomenal |
Learn more about clouds: www.metoffice.gov.uk/education/secondary/teachers/clouds.html#3 Met Office latest: www.metoffice.gov.uk/weather/uk/sw/sw_latest_weather.html Poole Harbour current: www.pooleharbourweather.com/weather Next 24 hours/5 Days: www.bbc.co.uk/weather/24hr.shtml?id=1187 www.metoffice.gov.uk/weather/uk/sw/poole_forecast_weather.html www.windguru.com/int/index.php?sc=71 |
