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Storm Activity›Nebraska Storm Activity›Sioux County, NE
Nebraska · Official NOAA Storm Data

Sioux County Hail Map & Storm Reports

Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Nov 1, 2026

Sioux County, Nebraska has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 1 tornado report among 52 severe weather events here in the last 12 months, alongside 2 hail reports with hail up to 1" and 49 high-wind reports with gusts up to 74 mph. The most recent recorded storm activity was on Sep 18, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

Map of Sioux County, Nebraska showing the county boundary and surrounding cities
Sioux County, Nebraska. Map © Mapbox © OpenStreetMap · County boundary: US Census Bureau.

Sioux County hail map

Where hail and high-wind reports clustered across Sioux County over the last 12 months. Heat shows report density and significance, not radar.

52
Events (12 mo)
2
Hail
49
Wind
1
Tornado
1"
Max hail
74
Max wind (mph)
Sep 18, 2026
Most recent

What the radar showed

Radar snapshot during the Jun 1, 2026 tornado event near 9 NE Mitchell, Sioux County, Nebraska, with NWS warning polygons
NEXRAD radar at the moment of the Jun 1, 2026 tornado event (Tornado) near 9 NE Mitchell. Outlined polygons are the storm-based warnings exactly as issued by the National Weather Service. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Storm exposure for an address in Sioux County

Get a free report in your folder. A city is enough if you do not have a street.

Storm log — the official record, day by day

Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.

Friday, September 18, 2026

1 SPC verified storm report — wind gusts up to 62 mph

NEXRAD radar during the Friday, September 18, 2026 storm activity in Sioux County, Nebraska
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Saturday, August 29, 2026

2 SPC verified storm reports — wind gusts up to 74 mph

NEXRAD radar during the Saturday, August 29, 2026 storm activity in Sioux County, Nebraska
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Monday, August 17, 2026

1 SPC verified storm report — hail up to 1"

NEXRAD radar during the Monday, August 17, 2026 storm activity in Sioux County, Nebraska
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Spotter reported accumulating hail mostly between nickel and quarter sized that covered the ground completely. (CYS)”

SPC verified report · 24 NNE Harrison

Saturday, July 25, 2026

1 SPC verified storm report — wind gusts up to 58 mph

NEXRAD radar during the Saturday, July 25, 2026 storm activity in Sioux County, Nebraska
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Corrects previous non-tstm wnd gst report from 18 NNE Harrison. Mesonet station MTRN1 Montrose. (CYS)”

SPC verified report · 18 NNE Harrison

Monday, June 22, 2026

1 SPC verified storm report — hail up to 1"

NEXRAD radar during the Monday, June 22, 2026 storm activity in Sioux County, Nebraska
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Wednesday, June 17, 2026

2 NWS warnings — wind gusts up to 50 mph

“WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and east central and southeast South Dakota. WHEN...Until 9 PM CDT this evening. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Sioux County

“WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and east central and southeast South Dakota. WHEN...From 1 PM this afternoon to 9 PM CDT this evening. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Sioux County

Tuesday, June 16, 2026

2 NWS warnings — wind gusts up to 50 mph

“WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and east central and southeast South Dakota. WHEN...From 1 PM to 9 PM CDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Sioux County

“WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph expected. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and east central and southeast South Dakota. WHEN...From 1 PM to 9 PM CDT Wednesday. IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.”

NWS severe weather mention · Sioux County

Monday, June 1, 2026

1 SPC verified storm report — 1 tornado report

NEXRAD radar during the Monday, June 1, 2026 storm activity in Sioux County, Nebraska
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Storm chaser reports broad circulation on the ground. Another spotter in the area reported a brief funnel around the same time. (CYS)”

SPC verified report · 9 NE Mitchell

Thursday, May 14, 2026

2 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Cottonwood, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Hanson, McCook, Minnehaha, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union. WINDS...South 25 to 35 mph with gusts up to 50 mph.”

NWS severe weather mention · Sioux County

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Cottonwood, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Hanson, McCook, Minnehaha, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union. WINDS...South 25 to 35 mph with gusts up to 50 mph.”

NWS severe weather mention · Sioux County

Wednesday, May 13, 2026

2 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Cottonwood, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Hanson, McCook, Minnehaha, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union. WINDS...South 25 to 35 mph with gusts up to 50 mph.”

NWS severe weather mention · Sioux County

“The National Weather Service in Sioux Falls has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 7 PM CDT Thursday. AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Cottonwood, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota.”

NWS severe weather mention · Sioux County

Saturday, March 28, 2026

3 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In Nebraska, Dixon and Dakota.”

NWS severe weather mention · Sioux County

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In Nebraska, Dixon and Dakota.”

NWS severe weather mention · Sioux County

Friday, March 27, 2026

3 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock. In Nebraska, Dixon and Dakota.”

NWS severe weather mention · Sioux County

“The National Weather Service in Sioux Falls has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 9 PM CDT Saturday. The Fire Weather Watch is no longer in effect. AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida.”

NWS severe weather mention · Sioux County

Sunday, March 15, 2026

7 NWS warnings — wind gusts up to 60 mph

“WHAT...For the High Wind Warning, northwest winds 30 to 35 mph with gusts up to 60 mph. For the Cold Weather Advisory, very cold wind chills as low as 29 below zero expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...For the High Wind Warning, until 1 AM CDT Monday. For the Cold Weather Advisory, from 1 AM to 11 AM CDT Monday.”

NWS severe weather mention · Sioux County

“WHAT...For the High Wind Warning, northwest winds 30 to 35 mph with gusts up to 60 mph. For the Cold Weather Advisory, very cold wind chills as low as 29 below zero expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...For the High Wind Warning, until 1 AM CDT Monday. For the Cold Weather Advisory, from 1 AM to 11 AM CDT Monday.”

NWS severe weather mention · Sioux County

Saturday, March 14, 2026

2 NWS warnings — wind gusts up to 60 mph

“WHAT...North winds 35 to 45 mph with gusts up to 60 mph expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...From 10 AM Sunday to 1 AM CDT Monday. IMPACTS...Damaging winds will blow down tree branches. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Sioux County

“WHAT...North winds 35 to 45 mph with gusts up to 60 mph expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...From 10 AM Sunday to 1 AM CDT Monday. IMPACTS...Damaging winds will blow down tree branches. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Sioux County

Friday, March 13, 2026

1 NWS warning — wind gusts up to 65 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 65 mph. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...Until 7 AM CDT this morning. IMPACTS...Damaging winds will blow down tree branches. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Sioux County

Thursday, March 12, 2026

2 NWS warnings — wind gusts up to 70 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 70 mph expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...From 9 PM this evening to 7 AM CDT Friday. IMPACTS...Damaging winds will blow down tree branches. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Sioux County

“WHAT...Northwest winds 25 to 35 mph with gusts up to 65 mph expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...From 9 PM this evening to 7 AM CDT Friday. IMPACTS...Damaging winds will blow down tree branches. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Sioux County

Wednesday, March 11, 2026

7 NWS warnings — wind gusts up to 70 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 70 mph expected. WHERE...Portions of northwest and west central Iowa, northeast Nebraska, and southeast South Dakota. WHEN...From 9 PM Thursday to 7 AM CDT Friday. IMPACTS...Damaging winds will blow down tree branches. Scattered power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Sioux County

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Nebraska, Dixon and Dakota. In South Dakota, Beadle, Gregory, Jerauld, Sanborn, Miner, Lake, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union.”

NWS severe weather mention · Sioux County

Friday, February 27, 2026

1 NWS warning — wind gusts up to 50 mph

“AFFECTED AREA...In Iowa, Lyon, Sioux, O'Brien, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Nebraska, Dixon and Dakota. In South Dakota, Gregory, Jerauld, Sanborn, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union. WINDS...Northwest 20 to 30 mph with gusts up to 50 mph.”

NWS severe weather mention · Sioux County

Wednesday, February 18, 2026

2 NWS warnings — wind gusts up to 55 mph

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Gregory, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union.”

NWS severe weather mention · Sioux County

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Gregory, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union.”

NWS severe weather mention · Sioux County

Tuesday, February 17, 2026

3 NWS warnings — wind gusts up to 50 mph

“The National Weather Service in Sioux Falls has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 10 AM to 6 PM CST Wednesday. The Fire Weather Watch is no longer in effect. AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Nobles, Jackson and Rock.”

NWS severe weather mention · Sioux County

“AFFECTED AREA...In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida. In Minnesota, Nobles, Jackson and Rock. In Nebraska, Dixon and Dakota. In South Dakota, Gregory, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union.”

NWS severe weather mention · Sioux County

Saturday, January 17, 2026

2 NWS warnings — wind gusts up to 55 mph

“WHAT...Snow expected. Total snow accumulations up to one inch but locally higher in very narrow snow bands. Winds gusting 40 to 55 mph. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and central, east central, south central, and southeast South Dakota. WHEN...From 3 AM to 9 PM CST Sunday. IMPACTS...Plan on slippery road conditions.”

NWS severe weather mention · Sioux County

“WHAT...Snow expected. Total snow accumulations up to one inch but locally higher in very narrow snow bands. Winds gusting as high as 40 to 55 mph. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and central, east central, south central, and southeast South Dakota. WHEN...From 3 AM to 9 PM CST Sunday. IMPACTS...Plan on slippery road conditions.”

NWS severe weather mention · Sioux County

Friday, January 16, 2026

4 NWS warnings — wind gusts up to 60 mph

“WHAT...Snow and areas of blowing snow. Additional snow accumulations up to a half inch, but locally higher in very narrow snow bands. Winds gusting as high as 40 to 60 mph. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and central, east central, south central, and southeast South Dakota. WHEN...Until midnight CST tonight.”

NWS severe weather mention · Sioux County

“WHAT...Snow and areas of blowing snow. Additional snow accumulations up to a half inch, but locally higher in very narrow snow bands. Winds gusting as high as 40 to 60 mph. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, northeast Nebraska, and central, east central, south central, and southeast South Dakota. WHEN...Until 6 PM CST this evening.”

NWS severe weather mention · Sioux County

Today's severe weather outlook

Storm Prediction Center Day 1 convective outlook — national severe weather risk map for today
Storm Prediction Center Day 1 convective outlook: categorical severe weather risk for today, updated several times daily. Source: NOAA/NWS Storm Prediction Center.

Common questions

When was the last severe storm in Sioux County, NE?

The most recent recorded event was on Sep 18, 2026. Official NWS and SPC records show 52 severe weather events in Sioux County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.

Did it hail in Sioux County recently?

Yes — 2 hail reports in the last 12 months, with hail up to 1" recorded. The hail map above shows where reports clustered; the storm log lists each day.

How do I see hail history for a specific address in Sioux County?

Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property, including the most recent 30 days — county-level pages like this one only tell part of the story.

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Proudly AI-powered. Honestly sourced. IDOLCheck is built by HailyAI. Every storm event, magnitude, radar snapshot, and date on this page is deterministic — retrieved directly from official NOAA, National Weather Service (NWS), and Storm Prediction Center (SPC) storm records through HailyAPI and displayed exactly as reported. Quoted warning and report text is always attributed to its official source. Where the surrounding copy is not a direct quote, it was generated with AI assistance from that same verified storm data and reviewed and approved by humans before publication. AI organizes and presents the record — it never invents storm data.
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