July 27, 2017 4:35 am NBC 5 Forecast: Dangerous Heat A Heat Advisory is in effect today and Friday with the afternoon heat index between 105 and 110. Wake Up to Something Good 3:00 NBC 5 Forecast: A slim evening storm chance, then increasing heat 2:28 NBC 5 Forecast: A slim evening storm chance, then increasing heat 2:30 NBC 5 Forecast: Watching the dry line for storm chances on Monday 2:30 NBC 5 Forecast: Watching the dry line for storm chances on Monday 2:27 NBC 5 Forecast: Severe T-Storm Watch, Flood Watch in effect for North Texas