the rolling mass of clouds. you see these features again often in advance of an approaching thunderstorm. this is the set up going forward. we have another round of severe weather. so the central plains taking sen center stage once again. this time from oklahoma to nebraska and parts of kansas. we have a cold core upper level disturbance over the western half of the united states. that s going to interact with what is warm unstable golf moisture. that s streamsing in from the south. it s going to allow for under 20 million americans under some slight or enhanced risk of severe weather. even a moderate risk of severe weather expected across parts of kansas and into the extreme northern sections of oklahoma and the national weather service and storm prediction center highlights this particular area for the high potential of severe weather this saturday. so that s an area we re going to pay particular attention to for long trek. very dangerous and the