Violent and damaging downdraught striking the surface of the Earth violently. Associated with a severe thunderstorm.
A strong downdraft current of air from a cumulonimbus cloud, often associated with intense thunderstorms. Downdrafts may produce damaging winds at the surface.
A severe localized downdraft that can be experienced beneath a severe thunderstorm. (Compare Microburst and Macroburst.)
A sudden rush of cool air toward ground that can impact with speeds greater than 70 mph and produce damage similar to that of a tornado. It usually occurs near the leading edge of the storm or may occur in heavy rain. Viewing the damage from the air does not reveal evidence of a twisting motion or convergence toward a central track, like it would for a tornado.
A strong downward flowing current of air produced by a shower or thunderstorm, often responsible for damage.
a downward blowing wind that sometimes comes blasting out of a thunderstorm
a severe localized wind blasting down from a thunderstorm
a small area of rapidly descending air beneath a thunderstorm
a strong downdraft resulting in an outward burst of damaging winds at ground level," he explained
a strong downdraft that induces an outward burst of damaging winds on or near the surface
a strong downdraft which includes an outburst of potentially damaging winds on or near the ground
a strong downdraft with an out-rush of damaging wind on or near the ground
A strong gust of wind in a downward direction. Usually associated with a thunderstorm.
a vertical or nearly vertical downward burst of strong winds at ground level, usually associated with a thunderstorm.
A strong localized downdraft of air, usually from a thunderstorm cloud.
A severe localized down draft of wind that can be experienced beneath a severe thunderstorm.
A severe localized downward gust of air that can be experienced beneath a severe thunderstorm.
A strong downward rush of air which produces a blast of damaging wind on or close to the surface.
Wind blasting downward through the air. It may be due to a thunderstorm or shower.
A strong downdraft from a thunderstorm which induces damaging winds on or near the ground.
A strong downdraft, initiated by a thunderstorm, that induces an outburst of damaging staringht-line winds on or near the ground. Downbursts may last for anywhere from a few minutes in small scale microbursts on up to 20 minutes in larger, longer living macrobursts. Wind speeds in downbursts can reach 150 mph, or squarely in the range of a strong tornado
A strong downdraft, initiated by a thunderstorm, that includes an outburst of damaging winds on or near the ground. Downbursts may last for anywhere from a few minutes in small scale microbursts on up to 20 minutes in larger, longer lived microbursts. One example of a downburst, called straight-line winds, can reach speeds of 110-150 mph, or squarely in the range of a strong tornado. Downburst are further detailed as either: Microburst: a convective downdraft with an affected outflow area of less than 2.5 miles wide and peak winds lasting less than 5 minutes. They can create dangerous vertical/horizontal wind shears which can adversely affect aircraft performance and cause property damage. Macroburst: a convective downdraft with an affected outflow area of at least 2.5 miles wide and peak winds lasting between 5 and 20 minutes. Intense macrobursts may cause tornado-force damage.
A strong downdraft resulting in an outward burst of damaging winds on or near the ground. Downburst winds can produce damage similar to a strong tornado.
an intense localized downdraft which may be experienced beneath a thunderstorm, typically a severe thunderstorm; it results in an outward burst of damaging winds on or near the ground
A strong downdraft from a thunderstorm resulting in an outward burst of damaging winds on or near the ground. Downburst winds are often 50 to 100 mph and in rare cases can be 100 to 150 mph. The winds usually blow in one direction and may also be known as straight-line winds.
A sudden, strong, downward blast of air, usually from a thundercloud.
In meteorology, a phenomenon occurring in the downdraft of thunderstorms where the rain-filled air of the storm mixes with neighboring drier air. The resulting mixture, not being saturated, allows evaporation from the raindrops and consequent cooling of the air due to the absorption of latent heat. This increase the negative buoyancy of the downdraft and causes it to accelerate into a downdraft called a downburst. Downbursts of 0.5 to 5 km in diameter and with speeds of almost 10 m/s 100 m above the ground have been observed.
A severe localized downdraft from a thunderstorm.
Intense gust of wind or downdraft that exits the base of a thunderstorm and spreads out horizontally at the earth's surface as a strong wind that often causes damage.
An exceptionally strong downdraft beneath a thunderstorm usually accompanied by a deluge of precipitation.
severe localized downdraft from a thunderstorm or shower. This outward burst of cool or colder air creates damaging winds at or near the surface. Sometimes the damage resembles tornadic damage. Related term: microburst
A very powerful descent of air under or near a Cb. Vertical velocity may exceed 60 knots. Damage may be caused when the downburst reaches the ground and spreads out horizontally. (See also Microburst, which is a small downburst.)
A strong downdraught of short duration produced by some thunderstorms.
A downburst is a column of sinking air that is capable of producing damaging straight-line winds of over 150 mph (240 km/h), often producing damage similar to, but distinguishable from tornadoes. This is because the physical properties of a downburst are completely opposite that of a tornado. Downburst damage will radiate from a central point as the descending column spreads out when impacting the surface, whereas tornado damage tends towards convergent damage consistent with rotating winds.