The NWS is experimenting with Twitter to receive severe weather reports from the public:

http://www.weather.gov/stormreports/



*Stickied by vbhoutex*

I think it's cool, but I do not have my tweet location selected because I want it to be private. I also don't think that everyone is going to remember to put "WW" before your location and then again before the weather condition. I think that the NWS can do better than that.

I did save #wxreport under my saved searches.