Hurricanes

http://www.fema.gov/kids/hurr.htm

http://hurricanes.noaa.gov/

Tornadoes

http://www.nssl.noaa.gov/edu/safety/tornadoguide.html

http://www.fema.gov/kids/tornado.htm

http://www.noaawatch.gov/themes/severe.php

http://www.spc.noaa.gov/faq/tornado/

Floods

http://www.fema.gov/areyouready/flood.shtm

http://www.fema.gov/kids/floods.htm

http://www.usgs.gov/hazards/floods/

http://www.redcross.org/services/prepare/0,1082,0_240_,00.html

http://www.ucar.edu/communications/factsheets/Flooding.html

Blizzards

http://www.ussartf.org/blizzards.htm

http://www.weather.com/encyclopedia/winter/blizzard.html

http://nsidc.org/snow/blizzard/questions.html

http://www.wrh.noaa.gov/fgz/science/blizzard.php?wfo=fgz

Thunderstorms

http://www.fema.gov/kids/thunder.htm

http://www.windows.ucar.edu/tour/link=/earth/Atmosphere/tstorm.html

http://www.ready.gov/america/beinformed/thunderstorms.html

http://www.wxdude.com/page5.html

http://weather.cod.edu/sirvatka/ts.html