Even though there’s a chance for rain and thunderstorms through all of Christmas day, there will be two windows of opportunity for stronger storms to bring damaging wind gusts and small hail. Mainly during the morning and late afternoon/evening.
Dense clouds will be on the increase after midnight and shortly after that is when the viewing area (southwest portion) will see the first chance for rain. Showers will continue to advance in a south to north fashion and reach the Metro as early as 3am. But I don’t think we’ll have the possibility of any thunder until 4am or 5am, and the chance for thunderstorms will continue until about 9am.
A lull in the rain will develop between the late morning and early afternoon before another round of potential storms arrive later in the day.
A cold front over E. KS should create enough energy and momentum for our second round of storms. Timing for the west to east sweep of this line will be between 3pm and 8pm (5pm to 7pm for the Metro). Some leftover showers are possible after that but most of the rain will move out before midnight. So tailgaters and Chiefs fans will likely deal with a soggy start to Sunday night’s game, but conditions should improve after halftime.