Search results
Results from the WOW.Com Content Network
Where V srm is the max wind speed corrected for storm speed, phi is the latitude, and S is the size parameter. [5] S is more specifically defined as the ratio of tangential wind at a radius of 500 kilometres (310 mi) to its value under a Rankine vortex model. [6]
An anemometer is commonly used to measure wind speed. Global distribution of wind speed at 10m above ground averaged over the years 1981–2010 from the CHELSA-BIOCLIM+ data set [1] In meteorology, wind speed, or wind flow speed, is a fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in ...
These are among the highest observed wind speeds on Earth, just slightly lower than the wind speeds of the 1999 Bridge Creek–Moore tornado. As it crossed U.S. 81 , it had grown to a record-breaking width of 2.6 miles (4.2 km), beating the previous width record set in 2004 .
Potential Tropical Cyclone One south of Texas in the Gulf of Mexico has sustained high enough wind speeds but has not yet taken on an official name. Cyclone near Texas has wind speeds to be named ...
The derecho traveled more than 500 miles (800 km) before moving off the coast of Texas and Louisiana into the Gulf of Mexico and produced winds up to 78 mph (126 km/h) with hail up to 3.75 inches (9.5 cm) in diameter and a few tornadoes including a short-lived EF2 tornado north of Hochatown, Oklahoma that tossed two barges over 100 yd (91 m), a ...
Compared to over water, maximum sustained winds over land average 8% lower. [12] More especially, over a city or rough terrain, the wind gradient effect could cause a reduction of 40% to 50% of the geostrophic wind speed aloft; while over open water or ice, the reduction is between 10% and 30%. [8] [13] [14]
Wind speeds over 75 miles per hour are classified as “hurricane force,” capable of pushing moving vehicles off the highway, overturning mobile homes and peeling off roofs. The average wind ...
The power law is often used in wind power assessments [4] [5] where wind speeds at the height of a turbine ( 50 metres) must be estimated from near surface wind observations (~10 metres), or where wind speed data at various heights must be adjusted to a standard height [6] prior to use.