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Ohio River Forecast Center
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Flash Flood Guidance Maps

Operational FFG Graphics
(The images can be seen in more detail by clicking on the images or their labels.)  These products indicate the amount of rainfall needed in the specified number of hours in order to begin flooding.  The maps are refreshed a few times a day (in the mid-morning, mid-afternoon, and by late evening).  In significant flooding events, they are also updated during the overnight hours.  Blues and whites on the color scale indicate wetter conditions and mean that it will take less rainfall to start flooding than the yellows and greens, which indicate dry conditions and require more rainfall to start flooding.
thumbnail of 1-hr FFG 1-hr Flash Flood Guidance Map
thumbnail of 3-hr FFG 3-hr Flash Flood Guidance Map 
thumbnail of 6-hr FFG 6-hr Flash Flood Guidance Map 
thumbnail of 12-hr FFG 12-hr Flash Flood Guidance Map 
thumbnail of 24-hr FFG24-hr Flash Flood Guidance Map   

National Weather Service
Ohio River Forecast Center
1901 South State Route 134
Wilmington, OH 45177-9708
Page last modified: Wednesday, June 19, 2013 11:32 AM
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