snow conditions
Here's a couple of web sites that I find helpful in determining snow depth:
1. National Operational Hydrologic Remote Sensing Center
2. Wunderground.com
Wunderground offers city information from volunteers. I didn't find Watertown, but assume they have lots of snow. Also the state of SD has a web site that indicates cameras positions along roadways throughout SD and can show photos of road conditions...this is posted on the Dept of Transportation web site.
Jon