Highs around 60. A cold front moving through the Great Lakes and Ohio Valley regions will provide the focus for shower and thunderstorm development this afternoon through Sunday morning. A very moist air mass is already in place ahead of the system now moving out of the southern plains. As this system moves into the Ohio Valley this afternoon rain will spread into the region. Because of the large amount of atmospheric moisture already in place the main threat will be very heavy rainfall.
Localized flooding is also possible in urban areas such as streets and underpasses.
Spotter activation may be necessary tonight. Jay and Blackford. Cass and St Joseph. Allen and Van Wert. A cold front extending from a low pressure center over central Iowa will slowly swing east this afternoon and evening.