The National Weather Service released an updated flash flood warning at 8:42 p.m. on Sunday in effect until 11:45 p.m. for ...

At 8:25 p.m. on Sunday, the National Weather Service released a flash flood warning in effect until 10:30 p.m. for McKean and Warren counties.

A tornado watch is in effect across portions of southern Alberta amid a severe storm threat on Sunday afternoon. A tornado watch means that conditions are favourable for the development of tornadoes.