The National Weather Service has issued a severe thunderstorm watch for seven eastern Colorado counties until 10:00 p.m.

Storms across the area could produce two-inch diameter hail and wind gusts up to 70 miles per hour. Heavy rain and flash flooding can also occur with thunderstorms that develop this evening. Tornadoes are also possible. A tornado warning was in effect ata 6:30 p.m. for north central Cheyenne and south central Kit Carason counties. That warning was set to expire at 7:00 p.m.

Counties included in the watch

• Cheyenne
• Kit Carson
• Lincoln
• Logan
• Phillips
• Sedgwick
• Washington
• Yuma

The Storm Prediction Center in Norman, Oklahoma, has a slight risk for severe storms in the northeast Colorado area, including counties under the watch. With a slight risk, severe thunderstorms are expected to be scattered, with isolated intense storms possible. 

The watch also includes parts of western Nebraska and northeast Kansas.