The threat of damaging wind, fierce lightning, and downpours of rain continue into early Friday morning, June 29. One of the areas that will need close watching will be the general North Dakota region. The other area is the southern tier of the Mississippi River Valley. A severe thunderstorm watch was issued by the National Weather Service for these areas until the daylight hours Friday. Heavy thunderstorms will continue moving east toward Bismarck, Jamestown, and eventually Fargo and Bemidji. The primary threat with these storms will be wind up to 70 miles per hour, hailstones up to 2 inches thick, and an isolated tornado. https://twitter.com/WeatherNation/status/1012548609701699584 For those in the alert area, make sure you have a way of getting weather warnings overnight. A warning means a storm has formed and we need to take action now. A watch means be prepared and on standby to take action. That's not the only area we're watching into early Friday morning. https://www.facebook.com/WeatherNation/posts/10156616119379874 A severe line of thunderstorms has moved south from the greater St. Louis area Thursday afternoon, now traveling nearly due south down the Mississippi River Valley and western Tennessee. The biggest hazard here will be one or two wind gusts up to 70 miles per hour, but the storms should diminish toward dawn. Looking back to Thursday, we saw some impressive footage of multiple tornadoes in Montana and South Dakota, as well as huge hail in North Dakota. Courtesy Twitter user @Jesse_Risley Courtesy Twitter user @BillyClan1 Courtesy Sara Schindler For WeatherNation, Meteorologist Steve Glazier