Miami Valley , Whitewater Valley, and the I-71 corridor of Ohio/Indiana:
Flood Watch through Sunday morning...
Scattered showers will develop late tonight and last through tomorrow night. These showers will be light and drop only a half an inch of less. As the storm system strengthens going into Saturday rain will develop and become very heavy at times. Rainfall on the order of 3 to 4 inches with locally higher amounts could be possible. This kind of rainfall on top of recent snow melt will cause serious issues over the weekend. Significant flooding is going to cause very dramatic rises on rivers, streams, and lakes. Please be ready should flooding occur.
Some areas may experience very strong winds mainly on Saturday night and Sunday with the passage of this very strong cold front. 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 12/19 - Cloudy, a chance of scattered rain showers late. Winds SW 10 mph. Low 40. Chance of rain 30%. Rainfall around a tenth of an inch or less.
Friday 12/20 - Cloudy, scattered rain showers. Winds SW 10 to 20 mph, gusts to 25 mph. High 53. Chance of rain 80%. Rainfall around a tenth to a quarter of an inch.
Fri night 12/20 - Cloudy, scattered rain showers. Winds SW 5 to 15 mph, gusts to 25 mph. Low 50. Chance of rain 90%. Rainfall around a tenth to a quarter of an inch.
Saturday 12/21 - Cloudy, scattered rain showers becoming a steady rain. Rain may be heavy at times. Breezy. Winds SW 5 to 15 mph, gusts to 25 mph. High 55. Chance of rain 100%. Rainfall around 1 to 2 inches.
Sat night 12/21 - Cloudy, rain, with a few imbedded thunderstorms. Rain may be heavy at times. Breezy. Winds SW 15 to 25 mph, gusts to 30 mph late. Low 58. Chance of rain 100%. Rainfall around 1 to 2 inches.
Sunday 12/22 - Cloudy, rain early then a chance of a few scattered rain showers. Windy. High 55 falling into the 40s by pm. Chance of rain 100% early decreasing to 30% by pm. Rainfall around a tenth to a quarter of an inch.
Sun night 12/22 - Mostly cloudy, a chance of scattered snow showers. Low 28. Chance of snow 30%.
Monday 12/23 - Mostly cloudy, scattered snow showers early. High 28. Chance of snow 30%.
Mon night 12/23 - Partly cloudy. Low 18.
Tuesday 12/24 - Mostly sunny. High 27.
Tues night 12/24 - Mostly clear. Low 21.
Christmas Day 12/25 - Partly cloudy. High 36.
Christmas Night 12/25 - Mostly cloudy. Low 25.
Thursday 12/26 - Mostly cloudy, a chance of scattered snow showers. High 34. Chance of snow 30%.
Thur night 12/26 - Mostly cloudy, a chance of scattered snow showers. Low 19. Chance of snow 40%.