WIND GUST: The peak momentary wind velocity within a given interval of time.
WIND PASSAGE: The distance or length of flow of the air past a point during a given interval of time.
"A" Peak Wind Gust Recorder. "B" Runway Visual Range Indicator. "C" Altimeter.
"D" Temperature Dewpoint Indicators. "E" Wind Speed/Direction Indicators.
"F" Recording Barograph.
Recorded Wind Gusts
Mount Washington, NH
Franklin County, FL
Dry Tortugas, FL
Flattop Mountain, NC ...
High wind warningIssued when sustained winds from 40 to 73 mph are expected for at least one hour; or any wind gusts are expected to reach 58 miles per hour or more.
This instrument is not used for station measurements because of the false reading which results when the frequency of the wind gusts and the natural frequency of the swinging plate coincide. This was the earliest form of anemometer.
Wind GustRapid fluctuations in the wind speed with a variation of 10 knots or more between peaks and lulls. The speed of the gust will be the maximum instantaneous wind speed.
Mountainadoes, when carried by the mean wind, can produce strong horizontal shears and wind gusts that are much more damaging than the general prevailing wind speeds.
High wind gusts and heavy downpours often occur in individual rainbands, with relatively calm weather between bands. Tornadoes often form in the rainbands of landfalling tropical cyclones.
Gustiness factor Not much used anymore, this term was used to describe the variability in the wind conditions, based on short temporal measurements of wind gusts.
The ideal conditions for severe thunderstorms, and their progeny of flash flooding, large hail, destructive wind gusts, and even tornadoes.
Straight-Line winds originate as a downdraft of rain-cooled air, which reaches the ground and spreads out rapidly, producing a potentially damaging wind gusts. Suction Vortex - A small but very intense vortex within a tornado circulation.
Determine the potential strength of wind gusts,
Identify jets (low/mid/high level), and
Identify thermal advection patterns, vertical wind shear, depths of frontal surfaces, and the development of isentropic lift situations.
Thunderstorm/Thundershower: A local storm produced by a cumulonimbus cloud that contains thunder and lightning and often strong wind gusts, heavy rain showers and, at times, hail.
SEVERE THUNDERSTORM: A thunderstorm with wind gusts in excess of 58 mph (50 knots), frequent lightning and hail with a diameter of 3/4" or larger.
SHOWER: Liquid precipitation with frequent changes in intensity or sudden stops or starts.
SEVERE THUNDERSTORM: A strong thunderstorm with wind gusts in excess of 58 mph (50 knots) and/or hail with a diameter of 3/4" or more. A thunderstorm with winds greater than 39 mph and/or hail greater than " inch is defined as approaching severe.
Severe Thunderstorm - a thunderstorm with wind gusts of 50 knots (58 mph) or greater, hail at least three-quarters of an inch in diameter, and/or a tornado or funnel cloud
Shear - see wind shear ...
Wind Advisory - Issued for the occurrence of wind gusts between 40 and 57 mph for any duration.
Windward Side - The side of an object that is facing into the direction that the wind is coming from.
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Hail 2 cm in diameter or larger.
Flash flooding
Wind gusts in excess of 48 knots (96 km/h)
Tornado ...
Wind gusts associated with these storms can exceed hurricane force in intensity. A nor'easter gets its name from the continuously strong northeasterly winds blowing in from the ocean ahead of the storm and over the coastal areas.
down draft- a rapidly descending column of cooling air that causes heavy rains and violent wind gusts.
evaporation- process by which a liquid such as water becomes a gas.
Severe Storm: A storm with a tornado, surface hail >= 3/4 inch, or wind gusts >= 50 knots, or all three.
However, frequently strong wind gusts easily reach Bft 10 and thunderstorms and even waterspouts are possible. Heaviest snow showers and strongest winds are located close to the centre, winds within the 'eye' are calm.
While a severe thunderstorm may produce severe convective wind gusts that last for several minutes at a point location, derecho wind can last 30 minutes or longer.
Severe Thunderstorm-Any one of the three conditions must be met. 1) Tornadoes 2) Hailstones larger than 3/4" 3) Wind gusts greater than 58 miles per hours.
Single cell thunderstorms which produce brief periods of severe weather (3/4 inch hail, wind gusts in the excess of 58 miles an hour, or a tornado).
Pulse Storm ...
CORE - The center of a storm system. Thunderstorm precipitation cores usually contain the strongest non-tornadic wind gusts, largest hail, and heaviest rains.
ENTRAINED / ENTRAINMENT- Refers to the drawing in of moisture (or lack of moisture) into a system. Dry air entrainment into the mid levels of a thunderstorm can enhance the potential for damaging wind gusts.
A distribution having only one localized maximum, i.e., only one peak.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: G, Gust, PK, Rain Shield, Wind Gust
Unit Control Position - permalink - collapse ...
Wind Advisory - An advisory from the National Weather Service when the winds are between 29-38 m.p.h. lasting more than one hour, or when wind gusts are between 44-57 m.p.h.
A weather station about five miles away measured a sudden 70 mph wind gusts and winds flattened trees and overturned sheds near the where the boat capsized. These sudden winds were probably faster than 70 mph when they hit the boat.
The stronger the updraft, the better the chance that the supercell will produce severe (hail greater than 3/4 inch in diameter, wind gusts greater than 58 miles an hour, and possibly a tornado) weather.
In particular, the period over which flood waters both rise, and subside, and the horizontal extent of the flood waters. Hail and wind gust damage reports are most useful, ...
external instrumentsInstruments that belong to organizations that are outside of the ARM Program.extreme event timeThe time of extreme meteorological events such as min/max temperature and wind gusts.
 See also: Wind, Weather, Pressure, Temperature, Surface
  
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