Low pressure over South Dakota will intensify as it moves to near Waterloo, Ia. by the supper hour on Sunday. A warm front is expected to sweep northward across the Stateline into southern Wisconsin at the same time. An inpulse out ahead of the system may generate some light rain showers late tonight, and some showers and thunderstorms in the morning on Sunday. The air will be moderately unstable on Sunday afternoon into early Sunday evening with 65 degree dew point air trying to push into the area from the south. Some thunderstorms may become severe on Sunday afternoon. The main threat is from large hail. It will be windy and warm on Sunday with a high temp late in the day around 64 degrees. Showers and storms will continue in the evening. A cold front will blow across the area after midnight on Sunday night switching the winds to northwesterly. Light rain showers will linger ovenight, and scattered instability showers are possible in the colder air on Monday when temperatures are expected to remain in the 40's all day. The cool down will be shortlived, however, with low 50s expected on Tuesday with lots of sunshine, and even better weather on Wednesday with highs back in the low 60's.
By Meteorologist
Eric Nefstead
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