Severe Weather

Severe Weather Types

Hurricane(http://geology.com/hurricanes/named-hurricane-fran.gif)Warm ocean air rises, leaving low air pressure below.

Tornadoes(http://tornado-facts.com/wp-content/uploads/2009/07/tornadoes1-300x181.jpg)When cold and warm air meet, cold air drops while warm rises, spiraling together in a funnel-shape.

Blizzards(http://severe-wx.pbworks.com/f/blizzard.jpg)The jet stream sags to the south, allowing cold polar air from the north to clash with warm humid air from the south.

Drought(http://photoblog.statesman.com/wp-content/uploads/2011/08/drought-07.jpg)Droughts occur when an area does not receive enough rainfall.

Monsoon(http://img.timeinc.net/time/photoessays/2007/india_monsoon/india_monsoon_01.jpg)Monsoons are triggered by Earth's tilt in relation to the sun and by the difference in land and sea temperatures.

Heat Waves(http://images.sciencedaily.com/2013/07/130719083912-large.jpg)A warm air mass is stationary over an area for a period of time.

Cyclone(http://media.worldbulletin.net/250x190/2013/10/11/cyclone-india.jpg)Cyclones form over warm tropical waters and develop with the help of broad winds.

Hail(http://upload.wikimedia.org/wikipedia/commons/c/cc/Hail_RichmondHill.jpg)Hail is produced when thunderstorms have strong, tilted updrafts.

Typhoon(http://upload.wikimedia.org/wikipedia/commons/f/f6/Typhoon_Nina_25_nov_1987_0702Z.jpggrfgrTyphoons are caused by warm water, low atmospheric stability, and moist mid-atmosphere.