Weather Whiz Kids
Web Weather for Kids
KidsStorm
National Geographic Forces of Nature
Weather Station
Dan's Wild Wild Weather Page

Canadian Hurricane Center
Miami Museum of Science
Time for Kids Hurricanes
FEMA Hurricanes
BBC Hurricanes
Scholastic Hurricanes

Oahu Thunder and Lightning
Storm Prediction Center

The Tornado Project
USA Today Tornadoes
NOAA Severe Weather Safety (includes other storms, too)

Winter Weather Storms
Blizzard Attack!

Edheads
Scholastic Weather Maker
Create-A-Cane - can you set the right conditions to create a hurricane?
Aim-A-Hurricane - can you aim a hurricane towards a specific place?
National Geographic Forces of Nature - has interactive features on hurricanes and tornadoes