Sunday morning started well above average in the upper 60s, but as the arctic front moved through, temperatures quickly crashed nearly 20 degrees in an hour. Northwesterly winds gusting around 40 mph made it feel even colder outside.

A First Alert Weather day remains in effect Sunday. Temperatures through the first half of the day will be warm in the upper 60s and near 70, before a cold front arrives by late morning bringing a chance for strong to severe thunderstorms across East Texas.

After a mild Saturday, residents should brace for a sudden drop in temperatures as an arctic front sweeps through North Texas next week.

An arctic front is plunging through North Texas, and temperatures are plummeting behind it.First Alert Weather Days have been issued from Sunday through Friday due to arctic air and the potential for wintry precipitation from Thursday into Friday.