(KLZA)--The National Weather Service in Omaha/Valley has issued a Flash Flood Watch for a portion of southeast Nebraska from this evening through Monday morning. Counties that could be impacted include Gage, Jefferson, Johnson, Nemaha, Pawnee, Richardson and Saline.

Heavy rain is expected to develop this afternoon with an increase in intensity expected after 7 PM. Heavy rain will continue through the overnight hours before tapering off Monday morning.

Most areas could see anywhere from 2 to 4 inches of rainfall with some heavier pockets of up toward 5 inches are possible. Heavy rainfall could lead to some areas of flash flooding.

The National Weather Service says you should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.