Significant Rains Possible This Week....

A quasi-stationary front lying to our south will be the focal point for recurring thunderstorm complexes forming over the plains, and then moving eastward to the north of the front in the overnight hours through Wednesday. A thunderstorm complex forming over SE Nebraska, and north central Kansas will is severe this evening. A bow echo has developed with damaging winds in northeast Kansas. It will continue to move in arc arc across estreme southeastern Nebraska and northeastern Kansas into northwestern Missouri. It is a part of a thunderstorm complex with several severe storm clusters stretching as far north as South Dakota and eastward into extreme western Iowa. This complex will get a nudge eastward across Iowa tonight as a disturbance over western Nebraska gets closer. A low level jest stream from the south loadeded with additional moisture is expected to stream into the complex overnight continuing to feed it with additional moisture. Very heavy rains are possible across Iowa overnight. Some lighter showers and rain will move across the Mississippi River by 3 am, and the complex of thunderstorms may reach the Mississippi River toward daybreak moving into the extreme northwestern part of Illinois. It is expected to be in a weaking phase at that time, but it will contine eastward across northern Illinois in the morning hours.