Newsradio 740 KTRH on Instagram: "Texas freeze hits hard and Houston schools close while CenterPoint keeps the lights on. Montgomery County Judge Mark Keogh warns residents we're not clear until midday with temps hitting minus 5 to 15 degrees. Meanwhile, Transportation Secretary Sean Duffy admits flight delays will take time to resolve as thousands of cancellations pile up nationwide. Classic winter storm response - some agencies deliver, others make excuses. At least Texans know how to handle b