Links

National Hurricane Center (http://www.nhc.noaa.gov)
Link to the National Hurricane Center main page. From here you can see imagery and advisories for current tropical systems in the Atlantic and eastern Pacific.

Weather data page (http://www.rap.ucar.edu/weather/)
This link takes you to the weather data page maintained by the National Center for Atmospheric Research (NCAR). Here you can see satellite and radar data, surface and upper air observations, and forecast output from numerical models...all in real time.

Storm Prediction Center (http://www.spc.noaa.gov/products/outlook/)
This is the link to the severe thunderstorm outlook from the Storm Prediction Center (based in Norman, OK). They will highlight regions of the country that are at 1 of 3 levels of severe thunderstorm risk: slight, moderate, or high (rare). Also, you can see current severe thunderstorm and tornado watches/warnings from across the country. Plenty of other neat stuff, check it out!

Oklahoma Mesonet (http://www.mesonet.org)
Click here to see real-time data from the Oklahoma Mesonet. 

West Texas Mesonet (http://www.mesonet.ttu.edu)
Same idea, Texas-style! 

RAMSDIS Site (http://rammb.cira.colostate.edu/ramsdis/online/)
A great page for satellite imagery.  Select GOES-10 or GOES-12 and choose the type of image you want to see (VIS, IR, water vapor are all there, plus a few we didn't talk about).  Go wild!

Current Great Lakes water temps (http://coastwatch.glerl.noaa.gov/cwdata2/lct/glsea.gif)
Access current Great Lakes water temperatures, as derived from satellite.  A great resource for assessing the likelihood of lake-effect snow.

WeatherVideoHD.TV (http://WeatherVideoHD.TV)
Terrific site for free hi-def video of weather phenomena!

Images

Chapter 2 - Meteorological Measurements

Chapter 6 - Stability

Chapter 12 - Ice Storms

Chapter 18 - Thunderstorms

Chapter 19 - Tornadoes

Chapter 20 - Hail

Chapter 24 - Tropical Cyclones