Bad weather that usually includes a blizzard, intense thunderstorm or tornadoes.

Includes conditions such as: high wind, heavy rain, hail, heavy snowfall, blizzard, severe thunderstorm and tornado.

Generally, any destructive weather event, but usually applies to localized storms, such as blizzards, intense thunderstorms, or tornadoes.

Generally, same as severe storm.

Severe weather phenomena are weather conditions that are hazardous.