The National Weather Service
Warnings, forecasts, maps, observations, climate statistics, and reference to general weather topics.

The NOAA Home Page
The National Oceanic and Atmospheric Administration.

The Tornado Project Online
Locating, organizing and publishing information on tornados since 1970. Site includes myths, oddities, chasing, and safety information.

Weather Amateur Radio Network
The Cincinnati chapter of Skywarn.

The Weather Channel
A 24-hour, 7 day television network devoted entirely to weather.