05/12/2025, 5:17 am EDT
Subsidence on the back side of an East Coast trough causes the onset of an excessive hot weather pattern across Texas on Tuesday. The hottest day of an extended heatwave is Wednesday when southwest flow extending across Texas from the hot air source region across the Mexico drought area occurs. Widespread 100’s are likely on Wednesday. The hot southwest flow peaks Wednesday although likely remaining through the 10-day heat wave.