O'Brien County Hail Map & Storm Reports
Hail, wind, and tornado reports from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 13, 2026
O'Brien County, Iowa has recorded tornado activity: official National Weather Service (NWS) and Storm Prediction Center (SPC) records list 1 tornado report among 69 severe weather events here in the last 12 months, alongside 13 hail reports with hail up to 2" and 55 high-wind reports with gusts up to 70 mph. The most recent recorded storm activity was on Jul 3, 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
O'Brien County hail map
Where hail and high-wind reports clustered across O'Brien County over the last 12 months. Heat shows report density and significance, not radar.
What the radar showed
Hail history for an address in O'Brien County
See address-level storm exposure — verified hail and wind reports plus official warning boundaries around any specific property, including the most recent 30 days. Free account, takes under a minute.
Check an address 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 3, 2026
1 SPC verified storm report
“Several large tree branches down and pine tree snapped ~15 feet above ground. Damage occurred sporadically from 11:57 pm and 12:06 am. Times estimated based on radar an (FSD)”
- Wind Unknown Sanborn SPC verified report
Saturday, June 27, 2026
1 SPC verified storm report — hail up to 1"
- Hail 1" Sanborn SPC verified report
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
Sunday, May 24, 2026
1 SPC verified storm report — hail up to 1.25"
“mPING report of Half Dollar (1.25 in.) sized hail near Sanborn... IA. Time estimated via radar. (FSD)”
- Hail 1.25" Sanborn SPC verified report
Monday, May 18, 2026
1 SPC verified storm report — hail up to 1"
“Report from mPING: Quarter (1.00 in.). Also had picture via social media. (FSD)”
- Hail 1" Sanborn SPC verified report
Saturday, May 16, 2026
1 SPC verified storm report — hail up to 1.75"
“Report from mPING: Golf Ball (1.75 in.). (FSD)”
- Hail 1.75" 3 S Sanborn SPC verified report
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
Monday, April 13, 2026
4 SPC verified storm reports — hail up to 1.75", 1 tornado report
“Start of brief tornado which tracked generally north and northwest for around 5 minutes. Track was through open fields with no visible damage. Location and track derive (FSD)”
“Social media report with picture of estimated hail size. (FSD)”
- Tornado Tornado 2 NE Archer SPC verified report
- Hail 1.75" 3 NNE Archer SPC verified report
- Hail 1.75" 4 SE Granville SPC verified report
- Hail 1.5" Sanborn SPC verified report
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 55 mph O'Brien County NWS severe weather mention
- Wind 55 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 65 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 70 mph O'Brien County NWS severe weather mention
- Wind 65 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 70 mph O'Brien County NWS severe weather mention
- Wind 65 mph O'Brien County NWS severe weather mention
- Wind 55 mph O'Brien County NWS severe weather mention
- Wind 55 mph O'Brien County NWS severe weather mention
- Wind 55 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 55 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
- Wind 50 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 55 mph O'Brien County NWS severe weather mention
- Wind 55 mph O'Brien County NWS severe weather mention
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.”
“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.”
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
- Wind 60 mph O'Brien County NWS severe weather mention
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.”
- Wind 60 mph O'Brien County NWS severe weather mention
Monday, September 22, 2025
1 SPC verified storm report — hail up to 2"
“TS reported 2 inch hail between 6:40 and 6:50 pm CDT. Heavy rain and nickles to dimes ongoing at time of the call at 7:09 pm. (FSD)”
- Hail 2" 4 N Sutherland SPC verified report
Sunday, September 21, 2025
3 SPC verified storm reports — hail up to 2"
“EM reported 2 inch hail on the north side of Southerland. Pictures included confirm size. Time was estimated by radar. (FSD)”
“TS reported quarter sized hail at approximately 7:40 pm CDT. He also reported that at the time of the call... 7:45 pm... that the hail had ended and it was just really (FSD)”
- Hail 2" Sutherland SPC verified report
- Hail 1" 3 WSW Primghar SPC verified report
- Hail 1" Primghar SPC verified report
Monday, September 15, 2025
2 SPC verified storm reports — hail up to 1.75"
“Hail mostly pea to dime... but several stones from quarter up to golf ball size. (FSD)”
- Hail 1.75" 3 NNW Hartley SPC verified report
- Hail 1.25" 4 SW Melvin SPC verified report
Today's severe weather outlook
Common questions
When was the last severe storm in O'Brien County, IA?
The most recent recorded event was on Jul 3, 2026. Official NWS and SPC records show 69 severe weather events in O'Brien 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 O'Brien County recently?
Yes — 13 hail reports in the last 12 months, with hail up to 2" 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 O'Brien 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.