Officials in Lake and Moody Counties and those downstream are monitoring rivers closely after seven inches of rain hit the Madison and Flandreau areas over the weekend.
The Big Sioux River near Baltic was at five feet before the rain and hit 13 feet Monday morning. It's expected to reach 15 feet, which is just over the major flood stage.
The excess water also saturated roads and made some soft and unsafe for travel. Highway 19 in the Madison area is closed. Fields are also full of water.
The James River was at 14 feet before the rain started to fall and is currently at 19 feet. It's expected to rise to 21.2 feet.
The Little Vermillion River near Salem is at a major flood stage at 9 feet.
All three rivers are moving very quickly and officials urge drivers to be aware of the areas where water is rising.
Monitor the latest river levels on the National Weather Service's Hydrologic Prediction website. Click on the forecast tab to see the forecasted crests.