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Storm ActivityIowa Storm ActivitySioux County, IA
Iowa · Official NOAA Storm Data

Sioux County Storm Activity

Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 11, 2026

Has it hailed in Sioux County, Iowa recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 5 hail reports with hail up to 1.75", among 71 severe weather events logged here in the last 12 months, together with 66 high-wind reports with gusts up to 82 mph. The most recent recorded storm activity was in August 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

71
Events (12 mo)
5
Hail
66
Wind
0
Tornado
1.75"
Max hail
82
Max wind (mph)
August 2026
Most recent

What the radar showed

Radar snapshot during the Sep 20, 2025 hail event near 8 NNE Hawarden, Sioux County, Iowa, with NWS warning polygons
NEXRAD radar at the moment of the Sep 20, 2025 hail event (1.75") near 8 NNE Hawarden. 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.

Last 30 days in Sioux County

Current NEXRAD radar over Sioux County, Iowa with recent storm report locations
Current radar over the Sioux County area, with storm reports from the past 7 days plotted. Refreshes throughout the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
August 2026 1 storm day · 3 SPC verified reports — hail to 1", wind to 81 mph Exact dates & locations in app →

Recent storms — full detail available in the app

Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.

See the specifics — free →

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, July 24, 2026

1 SPC verified storm report — wind gusts up to 82 mph

NEXRAD radar during the Friday, July 24, 2026 storm activity in Sioux County, Iowa
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Thursday, July 2, 2026

1 SPC verified storm report — wind gusts up to 59 mph

NEXRAD radar during the Thursday, July 2, 2026 storm activity in Sioux County, Iowa
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, July 1, 2026

1 SPC verified storm report

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

“Multiple 8 to 10 inch diameter branches down around town. Time estimated via radar. (FSD)”

SPC verified report · Hawarden

Tuesday, June 30, 2026

4 SPC verified storm reports — wind gusts up to 76 mph

NEXRAD radar during the Tuesday, June 30, 2026 storm activity in Sioux County, Iowa
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Personal weather station reported gust of 76 mph at 2:33 am CDT. (FSD)”

SPC verified report · 2 NNW Ireton

“Personal weather station reported gusts of 59 mph at 2:30 am CDT. (FSD)”

SPC verified report · 2 NW Orange City

Monday, June 29, 2026

1 SPC verified storm report

“Tree and outbuilding damage to a couple of farmsteads. (FSD)”

SPC verified report · 3 NNW Granville

Sunday, June 28, 2026

1 SPC verified storm report

“Several large tree branches down across town ranging from 5 inches in diameter to as large as 13 inches in diameter. (FSD)”

SPC verified report · Sioux Center

Saturday, June 27, 2026

2 SPC verified storm reports — hail up to 1.5"

NEXRAD radar during the Saturday, June 27, 2026 storm activity in Sioux County, Iowa
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

1 SPC verified storm report · 2 NWS warnings — wind gusts up to 50 mph

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

“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, May 18, 2026

1 SPC verified storm report — hail up to 1"

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

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

3 NWS warnings — 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

“WHAT...Northwest winds 25 to 35 mph with gusts up to 60 mph. WHERE...Portions of northwest and west central Iowa 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

6 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

“WHAT...West winds 30 to 35 mph with gusts up to 50 mph. WHERE...Portions of northwest and west central Iowa, southwest Minnesota, and southeast South Dakota. WHEN...Until 3 PM CST this afternoon. 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, February 17, 2026

5 NWS warnings — wind gusts up to 50 mph

“WHAT...West winds 30 to 40 mph with gusts up to 50 mph expected. WHERE...Portions of northwest and west central Iowa and southwest Minnesota. WHEN...From 2 AM to noon CST 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

“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

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

Thursday, December 18, 2025

1 NWS warning — wind gusts up to 60 mph

“WHAT...Snow and blowing snow. Additional snow accumulations up to half inch. Winds gusting as high as 50 to 60 mph. WHERE...Portions of northwest Iowa, southwest Minnesota, and east central and southeast South Dakota. WHEN...Until 6 PM CST this evening. IMPACTS...Plan on slippery road conditions. Areas of blowing snow could significantly reduce visibility.”

NWS severe weather mention · Sioux County

Saturday, September 20, 2025

1 SPC verified storm report — hail up to 1.75"

NEXRAD radar during the Saturday, September 20, 2025 storm activity in Sioux County, Iowa
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Estimated ping pong ball to golf ball size hail. Time estimated from radar. (FSD)”

SPC verified report · 8 NNE Hawarden

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, IA?

The most recent recorded event was in August 2026. Official NWS and SPC records show 71 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.

Has there been hail in Sioux County recently?

Yes — 5 hail reports in the last 12 months, with hail up to 1.75" recorded.

How do I check whether a specific address was affected?

Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — 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 our HailyDB engine 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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