(Northwest Iowa(...A Flash Flood Watch remains in effect for Emmet, Palo Alto, Pocahontas, Humboldt and Kossuth counties until Wednesday Morning due to Ice Jams on the Des Moines River. Flood Warnings continue for the following: The Little Sioux River at Milford, Spencer and Linn Grove The O'Cheyedon River near Spencer The Des Moines River at Jackson, Minnesota.