Weather.com:

Weather.com has 6,738 URLs listed in 6,743 Dmoz categories.

The Weather Channel
Forecasts worldwide, Doppler radar and satellite maps, weather news, and flight and events information.
http://www.weather.com/
Top/Arts/Television/Networks/Cable

Weather.com: Storm Encyclopedia
Explains what conditions need to occur for there to be a blizzard.
http://www.weather.com/encyclopedia/winter/blizzard.html
Top/Kids_and_Teens/School_Time/Science/The_Earth/The_Atmosphere/Weather/Extreme_Weather/Blizzards

Slideshow: Katrina Hits Gulf
Photos of the devastation and rescue efforts.
http://www.weather.com/newscenter/slideshow/katrina2.html
Top/Kids_and_Teens/School_Time/Science/The_Earth/The_Atmosphere/Weather/Extreme_Weather/Hurricanes,_Typhoons,_and_Tropical_Cyclones/Specific_Storms

Weather.com: Nor'easters
Contains how and where these storm form.
http://www.weather.com/encyclopedia/winter/noreast.html
Top/Kids_and_Teens/School_Time/Science/The_Earth/The_Atmosphere/Weather/Extreme_Weather/Nor'Easters

Weather.com - Photogallery
Pictures of storms, lightning, and travel shots. [May not work in all browsers.]
http://photo.weather.com/interact/photogallery/
Top/Kids_and_Teens/School_Time/Science/The_Earth/The_Atmosphere/Weather/Image_Galleries

Weather.com: Lake Effect Snow
Explains why the downwind side of large lakes get lots of snow.
http://www.weather.com/encyclopedia/winter/lake.html
Top/Kids_and_Teens/School_Time/Science/The_Earth/The_Atmosphere/Weather/Snow/Lake_Effect_Snow

Weather.com
Offers forecasts for cities worldwide as well as radar and satellite maps. Also includes news stories and allergy information.
http://www.weather.com
Top/News/Weather

The Weather Channel: National Weather Outlook
Alerts, forecasts, and current conditions.
http://rss.weather.com/rss/national/rss_nwf_rss.xml
Top/News/Weather

Weather Glossary
Features an alphabetical listing of weather-related terms, covering the environmental sciences.
http://www.weather.com/glossary/
Top/Reference/Dictionaries/By_Subject/Science/Meteorology

Storm Encyclopedia
Covers the basics about severe storms with notable examples of Mother Nature's ill-tempered handiwork.
http://www.weather.com/encyclopedia/
Top/Reference/Encyclopedias/Subject_Encyclopedias