Another day of stormy weather is in store for the Southern Plains on Sunday thanks to extreme instability set up in the region. Winds could reach over 75 mph and hail could grow as large as softballs or grapefruits, bringing the potential for power outages to the region. Isolated tornadoes are also possible, but the main threats for the day are the wind and hail. Major cities included in the stormy outlook include Dallas, Oklahoma City, Kansas City and Shreveport.