MicroburstsPurple

John Fitzpatrick purple block =Microbursts=

 Introduction A microburst is when a column of fast sinking air makes contact with the ground and winds up to 110 mph spread out in all directions.  Dangers Microbursts have been known to cause hurricane-like damage in their diameter (ripping up trees, house damage, flipping cars, causing plane crashes ect.)

Conditions of Formation Amicroburst is formed when saturated are rain starts to fall, it evaporates in the dry air cooling the air down, and becauscool air sinks, the air begins to fall. The air falls faster and faster until it hits the ground, then the winds curl up and spread out at insanely fast speeds. There are 2 types of microbursts, dry and wet. A wet microburst is when precipitation from the clouds reaches the ground and a dry one is when it evaporates before touching the ground.  Historical Examples In 1985 in Dallas Airports, Delta Air Lines flight 191 was caught in a sudden microburst as it was landing. The sudden change of winds (around 120 mph) caused the plane to roll over in mid air and crash into the runway, tearing a car on the ground and the person in it in half. Out of the 152 people onboard, 135 peopl e were killed [] the pilots of the airplane radio recording. the first min 30 secs are pointless

__**Safety:**__ Microbursts happen very quickly and often with no warning at all. If you are caught in one, try to stay away from trees, telephone poles, power-lines, and other stuff that could fall due to the high winds.  Sources [|http://phoenix.about.com/cs/weather/g/microburst.htm] []l []