Storms will move in from western Missouri after midnight Wednesday night as a warm front moves north to near I-70 by daybreak. Hail up to 2 inches in diameter is possible in a few of the storms along with wind gusts to 70 mph. These storms will also produce heavy rain which could lead to flash flooding. As the storms move east overnight, the hail size will decrease slightly but the threat of heavy rain will continue.
Storms will move out by mid-morning and temperatures will warm into the 70s with southerly winds up to 20 mph. A strong area of low pressure and cold front will approach the area in the afternoon. T-storms are expected to develop from mid to late afternoon in southwestern Missouri and move into mid-Missouri through early evening. Some of these storms could produce hail larger than golf balls and tornadoes. As we head into the evening hours, storms will form a line ahead of the cold front and move east and out of mid-Missouri. Damaging winds will be the primary threat with this line of storms.
Flash flooding is possible, especially near I-70 where heavy rain fell Wednesday morning. An additional 2-3 inches of rain is possible through Thursday evening.