A slow moving storm system will bring the potential for severe thunderstorms later today (Tuesday) into tomorrow (Wednesday, July 4th) across the Upper Midwest. There is a slight risk for severe weather extending from near Fargo to the Black Hills. Large hail and strong wind gusts are the main threats today, along with a low risk for a tornado. A low pressure center will drag a warm front into Minnesota, and cold front from South Dakota into Wyoming. Isolated supercells are possible in the evening, which will likely produce all modes of severe weather (tornadoes, large hail, damaging winds). A series of thunderstorm complexes, capable of strong winds and heavy rain, will form later tonight into the overnight. The low pressure center will push into Canada for Independence Day, dragging the cold front eastward from Minnesota to Nebraska. A line of thunderstorms, some severe, will form along and ahead of the front in the late afternoon into the evening. For WeatherNation: Meteorologist Mace Michaels