i'm jericka duncan.ight ukraine's president, volodymyr zelenskyy, is asking the united states to, quote, stand more firmly on their side. diplomatic relations between the two countries melted down at the white house friday with the world watching. >> your country is in big trouble. >> can i answer? >> wait a minute. no, no, you have done a lot of talking. your country is in big trouble. >> i know. >> you're not winning. >> i know. >> you're not winning this. >> i -- >> you have a damn good chance of coming out okay because of us. >> mr. president -- >> state-run russian tv called that scene a, quote, public execution. tonight zelenskyy is in london. he will meet there tomorrow with leaders from europe and canada. they've pledged to stand with ukraine and chart a path forward. the stakes for ukraine could not be higher as it battles russian invaders. cbs' imtiaz tyab in kyiv leads us off tonight. >> reporter: well, an editorial from one of ukraine's most prominent online newspapers put it bluntly, quote,

jericka?ve mel cough, thank you so much. the fire threat is expected to expand later this week. let's check in with cbs news meteorologist grant gilmore. grant, good evening. >> good evening, jericka. look, after another dry and breezy day across the carolinas, the good news is the wind gusts will die down. but that dry air will remain in place. and with those low-relative humidities, we'll see another day of elevated fire danger tomorrow. but those winds will shift on shore as we go into tuesday. that will bring in more moisture and hopefully decrease that fire threat as we go into the middle of the week. in the meantime, we have a powerful storm system already moving through the pacific northwest. that system moves east and really strengthens east of the rockies. that will produce a substantial threat for severe weather across the mid and southern mississippi valley as we make our way into tuesday and wednesday. we have an enhanced threat for severe weather across louisiana and mississippi.