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Although the scale shows wind speeds in continuous speed ranges, the US National Hurricane Center and the Central Pacific Hurricane Center assign tropical cyclone intensities in 5-knot (kn) increments (e.g., 100, 105, 110, 115 kn, etc.) because of the inherent uncertainty in estimating the strength of tropical cyclones. Wind speeds in knots are ...
A very strong typhoon has wind speeds between 85–104 kn (44–54 m/s; 98–120 mph; 157–193 km/h), while a violent typhoon has wind speeds of 105 kn (54 m/s; 121 mph; 194 km/h) or greater. [8] The HKO, SMG and the CMA also divide the typhoon category into three categories, with both assigning a maximum wind speed of 80 kn (41 m/s; 92 mph ...
These low humidities, combined with the warm, compressionally-heated air mass, plus the high wind speeds, create critical fire weather conditions. The combination of wind, heat, and dryness accompanying the Santa Ana winds turns the chaparral into explosive fuel feeding the infamous wildfires for which the region is known.
Mighty Sam has maintained its major hurricane force, meaning a cyclone of Category 3 strength or greater, since 11 a.m. EDT on Saturday, Sept. 25, and even strengthened some more on Friday while ...
A wind atlas contains data on the wind speed and wind direction in a region. [1] These data include maps , but also time series or frequency distributions . A climatological wind atlas covers hourly averages at a standard height (10 meters) over even longer periods (30 years) but depending on the application there are variations in averaging ...
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 ...
Category 1 storms on the Saffir-Simpson Hurricane Wind Scale have speeds beginning at 74 mph. One Kentucky county recorded a gust higher. Yes, Kentucky saw hurricane force winds Friday.
In 1972, the National Hurricane Center (NHC) began ranking hurricanes according to wind speed with the Saffir–Simpson scale. A Category 3 has maximum sustained winds between 96 knots (110 mph; 178 km/h; 49 m/s) and 112 knots (129 mph; 207 km/h; 58 m/s). The NHC considers these winds to be sustained for a one-minute period at 10 metres (32.8 ...