The National Weather Service has issued a Flash Flood Watch for Athens County until 12 Midnight, Sunday, 7/23/17.
Additional rounds of thunderstorms with very heavy rain may result in flash flooding, especially along small streams and in poor drainage areas.
PRECAUTIONARY/PREPAREDNESS ACTIONS; A Flash Flood Watch means that conditions may develop that lead to flash flooding. Flash flooding is a very dangerous situation.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
City of Nelsonville, Ohio Information Blog 