| A | B |
|---|
| Severe Weather | out of the ordinary weather that usually causes dangerous conditions that can endanger property and lives - examples are tornadoes, thunderstorms, windstorms, hurricanes and floods |
| Flood | when water overflows the natural or artificial banks of a stream or other body of water and moves over normally dry land |
| Flash Floods | short, rapid, unexpected flows of muddy water rushing down a canyon |
| Drought | less than normal precipitation over a long period of time |
| Hail | frozen precipitation in the form of balls of ice |
| Hurricanes | cyclones, moving wind systems that rotate around an eye, or center of low atmospheric pressure - they begin in warm, tropical areas |
| Typhoon | a term used for Pacific cyclones north of the equator and west of the international dateline |
| Lightning | a visible electric discharge, produced by thunderstorms |
| Thunder | the explosive sound that usually accompanies lightning , caused by the rapidly expanding gases in the path of lightning |
| Tornadoes | rapidly rotating columns of air that extend from a thunderstorm to the ground |
| Thunderstorms | they produce rapidly rising air currents, usually resulting in heavy rain or hail along with thunder and lightning |
| Blizzards | severe storms with low temperatures, strong winds, and large quantities of snow |
| Straight-line Winds | strong winds that have no rotation |
| Microburst | small, very intense downdrafts |
| Dust Devils | small rotating winds not associated with a thunderstrom |
| Dust Storm | conditions in which strong winds carry dust over a large area |
