Straight-line winds are responsible for most thunderstorm wind damage.
Winds can reach 100 mph to 150 mph, or briefly equivalent to a Category 3 hurricane.
Wind-driven hail missiles can injure or kill, and damage property.
One type of straight-line wind, the downburst, can cause damage equivalent to a strong tornado and can be extremely dangerous to aviation.
In 1998, thunderstorm winds were responsible for one death and 59 injuries in Wisconsin. Maximum wind gusts ranged from 80 to 128 mph!
explanation of 1 cause of these type of straight line winds in US
www.usatoday.com...
A few examples of what these winds can do to structures
www.stormhunter.net...
A "squall line" refers to a linearly-oriented zone of convection (i.e., thunderstorms). Squall lines are common across the United States east of the
Rockies, especially during the spring when the atmosphere is most "dynamic." A "bow echo" or "bowing line segment" is an arched/bowed out line
of thunderstorms, sometimes embedded within a squall line. Bow echoes, most common in the spring and summer, usually are associated with an axis of
enhanced winds that create straight-line wind damage at the surface. In fact, bow echo-induced winds/downbursts account for a large majority of the
structural damage resulting from convective non-tornadic winds. Transient tornadoes also can occur in squall lines, especially in association with bow
echoes. These tornadoes, however, tend to be weaker and shorter-lived on average than those associated with supercell thunderstorms. Severe squall
lines and bow echoes are quite common in the Ohio Valley, including Kentucky.
For more on Squall Line Winds visit
www.crh.noaa.gov...
For the definition of Bow Echoes and some other terms associated with these kind of wind storms vist here
www.sema.state.mo.us...
This site has the most amazing pics of the frontal weather cells and super cells bringing with them straight line gusting winds, these pictures really
are of breathtaking quality to. I had to share hehehe
www.chaseday.com...
[edit on 26-11-2004 by radiant_obsidian]
[edit on 26-11-2004 by radiant_obsidian]
[edit on 26-11-2004 by radiant_obsidian]
[edit on 26-11-2004 by radiant_obsidian]
[edit on 26-11-2004 by radiant_obsidian]
[edit on 26-11-2004 by radiant_obsidian]