why do we need volcanoes
Why Do We Need Volcanoes? Despite their reputation as d...
|Record Value||135 m/s (302 mph)|
|Date of Event||3/5/1999|
|Length of Record||~1996-present|
|Geospatial Location||Bridge Creek Oklahoma [35°14’N, 97°44’W, elevation 416 m (1365 ft)]|
The most intense U.S. hurricane at landfall by pressure, the Labor Day Hurricane of 1935, was estimated to have maximum sustained winds of 185 mph at landfall in the Florida Keys.
Breezy is described as a sustained wind speed from 15-25 mph. Windy is a sustained wind speed from 20-30 mph. What makes a very windy day? Sustained winds between 30-40 mph.
5. 17-21. Fresh Breeze. Moderate waves 4-8 ft taking longer form, many whitecaps, some spray. Small trees in leaf begin to sway.
“Windy” conditions. Sustained wind speeds of 21 to 25 mph, or frequent wind gusts of 30 to 35 mph. ” A Very Low Threat to Life and Property from High Wind.” “Breezy” to “Windy” conditions.
Explanation: when wind speed increases the air particles are moving away from a particular place and hence the air pressure decreases . If the speed of the wind increases , the pressure is decreased and if the speed decreases the pressure increases.
Wind is air pressure converted into movement of air. When air slows down, its pressure increases. The kinetic energy or momentum of a moving air mass is converted in static atmospheric pressure as the air mass slows down. This means that higher wind speeds will show lower air pressure readings.
(literary) a violent wind. whirlwind. a more or less vertical column of air whirling around itself as it moves over the surface of the Earth. type of: atmospheric phenomenon. a physical phenomenon associated with the atmosphere.
Types of Wind – Planetary, Trade, Westerlies, Periodic & Local Winds.
The three chief types of winds are Trade winds, Westerlies, and polar winds.
Temperature differences between air masses lead to pressure differences, and this produces wind. The winter brings higher temperature gradients, especially when cold fronts move in from polar regions, and this causes wind speeds that are higher than normal.
Front: Front like sea breeze or mountains that help in lifting the warm air upwards. Rapidly rising warm air: Due to Sun’s heat, the temperature of place rises. The rise in temperature warms the air and create strong winds which arise in the upward direction. Thunderstorms develop in hot and humid areas like India.
Wind is the movement of air caused by the uneven heating of the Earth by the sun. … Warm equatorial air rises higher into the atmosphere and migrates toward the poles. This is a low-pressure system. At the same time, cooler, denser air moves over Earth’s surface toward the Equator to replace the heated air.
Here are the 10 states with the most wind:
Washington is the highest point in a region known for its weather extremes. New England’s geography helps create huge temperature variations because arctic air in the cool season can come in contact with air warmed by the Atlantic Ocean.