Transcript for Major storm closing in
on what could be a very long night ahead for millions. Severe storms hitting from the south all the way north, and this system is 1,700 miles long. Tornado watches up right now as we come on tonight. Already dangerous driving conditions. This is from outside Tulsa. This truck hydroplaning and sliding along the median. Heavy rain turning streets and rivers. This is Wichita Kansas. Fog making it difficult for drivers in Missouri. Right into the northeast as millions drive home and try to start this weekend. Rob Marciano with the new track tonight and the tornado worries as we come on. Reporter: Tonight, tornado sirens sounding the alarm across the southern plains. But that dangerous winter storm moving across the country. Hail and blinding rainmaking for treacherous driving condition throughout Oklahoma. I'm in the pouring rain. Can't get out of it. Reporter: Watch as this dash camera catches this frightening crash south of Tulsa, the truck hydroplaning. Luckily, no one serious hurt. In Wichita, Kansas, drivers navigating through flash floods. The dangerous flooding extending into Texas. That system spawning multiple reported tornadoes. Tornado warnings are very life threatening. You got take them seriously. Reporter: Millions watching the skies. The BIGS risk comes late tonight. Even's sleep. Dark. Can't see what's going on out there. Reporter: Family in the storm zone facing a dangerous 24 hours ahead. Hi, David. Dangerous winter and spring conditions across the plains right now. Look at the radar. Icing and snow conditions across Kansas and Missouri where there's also a tornado watch that extends south through the evening. That's likely to be extended east as the line pushes east. Memphis tomorrow morning, eventually here in Baton Rouge and then New Orleans and then Atlanta tomorrow night. Snow and ice through St. Louis, Chicago, flooding rains in Tennessee and Ohio river valleys. Accumulations anywhere from three inches to a foot in Chicago. Rob, thanks to you tonight.
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