The deep green is a flash flood watch.
Maroon are flash flood warnings.
Amber are severe thunderstorm warnings.
Yellow = tornado watch.
Rose = severe thunderstorm watch.
Radar update 4:34pm
Two semi's blown over on I-29.
82 mph winds clocked at Watertown Airport.
Damage to buildings and barns.
Radar update 3:49pm CDT
This is situation where I urge residents in the watch to pay close attention to the weather until the watch expires at 10pm or is cancelled in your area. These storms are already strong and strengthening.
As of 2:21pm CDT, there are already three tornado warnings in effect (red polygons).