A broad region of the state northwest of Houston is under a Tornado Watch until 9 p.m. Sunday, according to a tweet from the National Weather Service (NWS) Houston. More than two million Texans in the region could see scattered hail up to two inches in size and wind gusts of up to 70 miles per hour.

On Sunday at 1 a.m. a tornado watch was issued by the NWS Fort Worth TX in effect until 7 a.m. The watch is for Bosque, Collin, Comanche, Coryell, Dallas, Delta, Denton, Ellis, Erath, Fannin, Grayson, Hamilton, Hill, Hood, Hopkins, Hunt, Johnson, Kaufman, Lamar, Lampasas, McLennan, Mills, Parker, Rockwall, Somervell and Tarrant counties.

Severe thunderstorms will be possible across the Dallas-Fort Worth area through Saturday evening and Sunday. A flood watch is in effect for much of North Texas through Sunday evening, according to the National Weather Service in Fort Worth. Officials have said there is “high confidence” that storms develop between 2 a.m. and 7 a.m. Sunday.