Interstate 29 has been closed near Beresford to the I-229 exit in Sioux Falls.
Northbound traffic is being diverted from Interstate 29 at Exit 47 into SD Highway 46 at Beresford. Southbound lanes of I-29 are closed at Exit 73 near Tea due to water ocer the road further south.
Heavy rain driven by high winds has reduced visibility and created flooding along Interstate 29 south of Sioux Falls and on some nearby highways, state officials say.
Other areas where flash flooding or high water has caused difficulties are on the I-29 on-ramps at the Canton exit, S.D. Highway 11 in the area of 259th and 274th, U.S. Highway 18 at S.D. 115 and S.D. 11 and on I-29 near the Lennox and Harrisburg exits.
Travelers in the area are urged to use extreme caution. Many motorists have pulled to the side of the interstate to wait out the storm. Others are traveling 20 mph to 30 mph in conditions of limited visibility. Travelers are cautioned they may encounter areas of standing water or flooding unexpectedly in the storm area. The impact of the storm is rapidly changing, and road conditions could change quickly.
Motorists are reminded not to drive through water over roadways. Travelers are urged to visit safetravelusa.com/SD or to call 511 to check latest road conditions in their area.
Keep updated with the latest on the forecast from the KELOLAND Live Doppler HD Storm Center
Ben Dunsmoor shot this video of water over the road on Interstate 29 at Lennox Exit.