More deadly tornados leave Midwest reeling

>>> good evening. tonight, the same weather system that slammed into joplin, missouri, on sunday is not only still churning and active, it has intensified in some places. it's widened, and that means 14 more people have died since we last spoke in tornadoes outside of joplin. this one storm system today means 45 million americans were at some time today under the threat of severe weather . because we all know by now what the colors mean, the deep red , the purple at the core, here is the radar tonight. the huge cross section of the country from shreveport in the south to cincinnati. some forecasters put the threat of severe weather going into tonight greater than it's been all week. weather channel meteorology jim cantore has been out all night. he's in poplar bluff , missouri. good evening.

>> reporter: folks in the midwest are reeling again tonight. three states effecting, 13 people losing their lives, 64ed wounded, and hundreds once again, left homeless. it's a killer tornado. absolutely killer tornado.

>> look at the debris. it's a roof.

>> reporter: as a series of tornadoes ripped throw oklahoma last night, this one in ricochet. they ripped through everything that was in their path, killing eight people. one twister roared through shawnee, seen here passing i-25. nbc station klof was on the air and on the radio on the ground near reno.

>> it intensified and almost got us.

>> reporter: while in the air, reporter jim gardner described what he saw.

>> you look at this tornado. this is unbelievable. get off i-35 now. you won't be able to see this tornado. this thing keeps growing and growing and it's pulling everything in.

>> reporter: left behind, a path of destruction and homes flattened down to their concrete slabs.

>> reporter: in northeast piedmonte, a frantic search for survivors. workers quickly found a mother and two of her children. this morning, the 15-month-old died while the search continued for the missing 3-year-old. in arkansas, three were killed. and another tornado whipped through central kansas. the violent storm uprooted and blew an enormous tree over onto a van, killing the two people inside. it's just sad news every day. it seems like every time we get a watch box, there's a loss of life. over fife00 people have lost their lives this year. this is the deadliest since the early 1950s . and unfortunately, we still have several weeks of tornado season to go. if you look at the type of tornadoes we see, that is what is amazing to me, ef-4s, ef-5s, wind upwards of 100 miles an hour. that's why people are losing their lives in the dozens of outbreaks.

>> jim cantore on the heels of another dangerous night in