midland, odessa with nice numbers as well. phoenix, palm springs. a quick look at the big board.in. on the east coast, a line of >> more of america's weather coming up on "gma" in just a minute. now paula, elizabeth? >>> coming up, sandy hook's hero principal. we speak with her family in an abc news exclusive. >>> and the national conversation starting right now as we search for solutions for making all of our schools a little bit safer. [ male announcer ] this is bob, a regular guy with an irregular heartbeat. the usual, bob? not today. [ male announcer ] bob has afib: atrial fibrillation not caused by a heart valve problem, a condition that puts him at greater risk for a stroke. [ gps ] turn left. i don't think so. [ male announcer ] for years, bob took warfarin, and made a monthly trip to the clinic to get his blood tested. but not anymore. bob's doctor recommended a different option: once-a-day xarelto®. xarelto® is the first and only once-a-day prescription blood thinner for patients with afib not caused by a heart valve problem, that doesn't require routine blood monitoring