Yes, [NOAA's Storm Prediction Center's soundings page][1] is a great source for the information you are looking for, especially the skew-T diagrams and wind hodographs. This site provides current soundings as well as a past archive of 1 week. For the explanation of the soundings diagrams and numbers provided, see the [soundings help page][2].


  [1]: http://www.spc.noaa.gov/exper/soundings/
  [2]: http://www.spc.noaa.gov/exper/soundings/help/index.html