OMAHA – A flash flood watch is in effect for southeast Nebraska and southwest Iowa from 4 p.m. this afternoon (Friday) through 10 a.m. Saturday morning.
The National Weather Service placed Pottawattamie, Mills, Montgomery, Fremont, Page, Dodge, Douglas, Sarpy, Seward, Lancaster, Cass, Otoe, Saline, Jefferson, Gage, Johnson, Nemaha, Richardson and Pawnee Counties in the watch.
Slow-moving thunderstorms combined with abundant atmospheric moisture could cause very heavy rainfall tonight. Although average rainfall amounts will likely be in the 1 to 2 inch range, local totals in excess of 3 inches could occur, potentially leading to flash flooding.
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.
A river flood warning continues for the Missouri River at southeast Nebraska, southwest Iowa and northwest Missouri. Minor flooding remains in the forecast, but the river will continue to fall to below flood stage by late tomorrow morning.
A heat advisory is also in effect for northwest Missouri and northeast Kansas until 8 p.m. tonight. Heat index values will rise to 100 to 105 degrees this afternoon.