Miami Valley , Whitewater Valley, and the I-71 corridor of Ohio/Indiana:
A very warm and moist air mass will accompany a strong storm with weekend. Scattered showers will develop Thursday night and last through Friday night before a strong cold front interacts with very mild and moist air on Saturday. As this happens rain, heavy at times and a few imbedded thunderstorms will break out across the region late Saturday and last through early Sunday. Rainfall on the order of 1 to 4 inches is possible. This much rain on melted snow pack and frozen ground could cause significant flooding issues. Stay tuned for further details.
The following is the seven day forecast for the Dayton metro area and a 50 mile radius around it. Other metro areas like Columbus, Cincinnati, and Portsmouth are not included. For those areas please request a separate forecast. Thanks.
Tonight 12/17 - Mostly cloudy. Breezy early. Winds 10 to 20 mph, decreasing to 5 to 10 mph late. Low 21.
Wednesday 12/18 - Partly sunny. Winds W 5 to 10 mph. High 34.
Wed night 12/18 - Partly cloudy. Winds SW 5 to 10 mph. Low 29.
Thursday 12/19 - Mostly sunny with Increasing clouds by pm. Winds SW 5 to 15 mph. High 46.
Thur night 12/19 - Cloudy, a chance of scattered rain showers late. Patchy fog possible. Winds SW 5 to 15 mph. Low 42. Chance of rain 30%.
Friday 12/20 - Cloudy, scattered rain showers. Patchy fog possible. High 52. Chance of rain 80%.
Fri night 12/20 - Cloudy, scattered rain showers. Low 44. Chance of rain 80%.
Saturday 12/21 - Cloudy, scattered rain showers becoming a steady rain late. Rain may be heavy at times late. High 58. Chance of rain 100%.
Sat night 12/21 - Cloudy, rain, with a few imbedded thunderstorms. Rain may be heavy at times. Low 53. Chance of rain 100%.
Sunday 12/22 - Cloudy, steady rain early becoming scattered rain showers. High 53 falling into the 40s by pm. Chance of rain 90% early decreasing to 50% by pm.
Sun night 12/22 - Mostly cloudy. Low 29.
Monday 12/23 - Mostly cloudy, a few scattered flurries possible. High 30.
Mon night 12/23 - Partly cloudy. Low 21.
Tuesday 12/24 - Partly sunny. High 34.
Tues night 12/24 - Mostly cloudy. Low 26.