SIOUX FALLS, S.D. (KELO) — Severe weather made its way across South Dakota Tuesday afternoon.

This story was updated throughout the storm with information from our team of meteorologists who were watching the weather from the KELOLAND Live Doppler HD StormCenter.


5:38 p.m. CT

Flash flood warning for portions of Minnehaha and Moody Counties in SD as well as Cottonwood, Jackson, Murray, Nobles, Pipestone, and Rock Counties in MN until 8 pm CDT Tuesday. Rainfall rates of 1 to 2 inches per hour have been observed.

Severe thunderstorm warning for Lincoln and Minnehaha Counties, portions of Clay and Union Counties in SD as well as Plymouth and Sioux Counties in IA until 5:30 pm CDT Tuesday. 70 mph gusts are possible. This line is moving southeast at 50 mph.

85-90 mph winds have been reported at Wall Lake as of 3:53 p.m. We’re also seeing very strong winds near the McCook/Lake County border.

The City of Sioux Falls is reporting vehicles trapped in flooded intersections and downed powerlines. The City of Sioux Falls is asking people to avoid traveling and shelter in place.

More numbers are coming in on power outages. Minnehaha County is estimating 12% of the county is without power. McCook County is estimating 23% of the county is also without power. Miner County is estimating nearly 50%, and Beadle County is holding at a 60% estimate.

Tornado warning for NW Minnehaha and NE McCook Counties has now expired. Hail is now falling in Sioux Falls.

Here are some estimated rainfall totals. Notice the two axes of heavy rain; one from Huron to Sioux Falls and the other in Murray County, MN. Flash flooding concerns will be something to consider. Flash flood warnings are already in place for Murray County.

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The heart of this line is now pushing into the I-29 corridor from Dell Rapids to Worthing. Destructive wind gusts, heavy rain, and hail are all possible.

Areas north and west of Sioux Falls are still seeing very strong wind gusts indicated on radar. Continue to stay in shelter. We’re watching a few signs of rotation near Chandler, or SW of Slayton, with the Murray County storm.

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Severe thunderstorm warning for portions of Clay, Union, and Yankton Counties in SD as well as Plymouth and Sioux Counties in IA until 4:30 pm CDT Tuesday. 70 mph gusts are possible. This line is moving southeast at 40 mph.

Severe thunderstorm warning for portions of Cottonwood, Lyon, and Murray Counties in MN until 4:15 pm CDT Tuesday. This storm is moving northeast at 10 mph.

If you’re ahead of this line in northern Minnehaha County, you’ll need to keep an very close eye on this part of the line. This includes I-29 from Renner to Dell Rapids. Tornado warning continues in the red box for NW Minnehaha and NE McCook Counties until 3:45 pm CDT Tuesday.

The leading edge of this bowing segment is approaching the Sioux Falls area rather quickly. Seek shelter now!

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Anyone along I-90 from areas south of Salem to Sioux Falls will need to get ready to head inside. Very strong winds and heavy rain are pushing quickly to the east at 50 mph.

These strong winds have been knocking out power to the north and west. This is an estimated look at the percentage of each colored county that is without power.

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The storm is moving quickly with winds expected between 80 and 100 mph. Mitchell has reported wind gusts at 63mph, and 96 mph winds were reported at the Huron airport.

“It’s tornado-type instability,” Meteorologist Jay Trobec says.

Severe thunderstorm warning for portions of Davison, Douglas, Hanson, Hutchinson, Lake, Lincoln (SD), McCook, Minnehaha, and Turner Counties until 3:30 pm CDT Tuesday. 70+ mph gusts are possible. This line is moving east at 50 mph. Heads up toward the Sioux Falls area.

Wagner live cam

Multiple severe thunderstorm warnings are in effect along this line from US Highway 14 to Platte until 2:30 pm CDT Tuesday. Prepare for destructive wind and large hail. Seek shelter if you’re ahead of this line.

Right now, the storm is moving southeast at 45 mph. Ethan, Corsica, and Armour will see storms rolling in beginning at 2:06 p.m.

80 to 100 mph winds and baseball-sized hail is possible in today’s storms.


Damage reports are coming in from the Highmore area– a roof has been blown off of a home.


You can also track the storms for yourself using a variety of resources from KELOLAND.

Check your KELOLAND Storm Tracker app for hour-by-hour forecasts, live radar information and get alerts when severe weather is in your area.  

We’re also active on social media so you can follow @KELOLANDWeather on Twitter for more timely updates or KELOLAND Weather on Facebook for big picture weather warnings. 

For your inner storm chaser, our live cams stream what’s happening live all over KELOLAND, so you can catch a glimpse of the storms from across the area. 

If you take photos of the storms or any damage, share them with us by emailing the pictures to ushare@keloland.com or using #KELOwx on Social Media.

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