National Weather Service: Storm Prediction Center
Provides updated severe weather information.
http://www.spc.noaa.gov/products/wwa/index.html

Weather Advisory Browser
Features current National Weather Server advisories, watches, and warnings.
http://weather.terrapin.com/

Disaster News Network
Timely disaster news and information.
http://www.disasternews.net

Extreme Temperatures
Recorded from hundreds of localities around the world.
http://www.mherrera.org/temp.htm

NewsHour with Jim Lehrer - Weather and Natural Disasters Coverage - PBS
Feed provides interviews, background reports and updates intended to put the news in a larger context.
http://www.pbs.org/newshour/rss/weather.xml

Storm Prediction Center Tornado/Severe Thunderstorm Watches
Feed provides notices of US NOAA severe storm watches.
http://www.spc.noaa.gov/products/spcwwrss.xml

Storm Prediction Center Mesoscale Discussions
Feed provides US NOAA mesoscale discussions of weather systems with the potential to generate tornados or severe thunderstorms.
http://www.spc.noaa.gov/products/spcmdrss.xml

Storm Watch Alert
U.S. map shows current alerts, plus Sheriff directory listing participants by state. Register for search for a friend or family member.
http://www.stormwatchalert.com/

National Weather Service: Warnings Area
Immediate access to all available warnings for the United States, including tornado, hurricane, and winter weather warnings.
http://www.weather.gov/view/nationalwarnings.php

National Weather Service: Climate Prediction Center
Long-range assessment of weather threats, including drought, heavy rain, tropical systems and El Nino/La Nina events.
http://www.cpc.noaa.gov/products/predictions/threats/threats.php