A First Alert Weather Day is in effect Sunday for heat index values in the triple digits, as well as a significant threat for large hail, tornadoes and destructive winds Sunday night. A severe thunderstorm warning has been issued for Montague and Cooke counties until 9:30 p.

A severe storm with damaging winds, hail, and tornado risk is expected in North Texas Sunday night from 9 p.m. to 1 a.m.

Significant” severe storms are expected to roll through much of North Texas — including Dallas-Fort Worth — late Sunday night, bringing with them the potential for large hail, damaging winds and spin-up tornadoes.