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Minnesota · Official NOAA Storm Data

Brown County Hail Map & Storm Reports

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

Has it hailed in Brown County, Minnesota recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 14 hail reports with hail up to 2.75", among 45 severe weather events logged here in the last 12 months, together with 31 high-wind reports with gusts up to 70 mph. The most recent recorded storm activity was in September 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.

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

Brown County hail map

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

45
Events (12 mo)
14
Hail
31
Wind
0
Tornado
2.75"
Max hail
70
Max wind (mph)
September 2026
Most recent

What the radar showed

Radar snapshot during the Apr 12, 2026 hail event near 4 N Madelia, Brown County, Minnesota, with NWS warning polygons
NEXRAD radar at the moment of the Apr 12, 2026 hail event (2.75") near 4 N Madelia. 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 Brown County

Current NEXRAD radar over Brown County, Minnesota with recent storm report locations
Current radar over the Brown 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.
September 2026 1 storm day · 1 NWS warning — hail to 0.25" Exact dates & locations in app →
August 2026 1 storm day · 1 NWS warning — wind to 50 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.

Sunday, August 9, 2026

2 NWS warnings — hail up to 0.75"

NEXRAD radar during the Sunday, August 9, 2026 storm activity in Brown County, Minnesota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 538 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from over Arlington to near Springfield, or extending from 23 miles southeast of Hutchinson to 20 miles southeast of Redwood Falls, moving east at 45 mph. Hazard: Penny size hail. Impact: Minor damage to outdoor objects is possible. Locations impacted include... New Ulm, St.”

NWS severe weather mention · Brown County

“At 512 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 7 miles west of Hanska to near Truman, or extending from 14 miles southwest of New Ulm to 9 miles north of Fairmont, moving east at 40 mph. Hazard: Penny size hail. Impact: Minor damage to outdoor objects is possible. Locations impacted include... Mankato, Fairmont, North Mankato, St.”

NWS severe weather mention · Brown County

Friday, August 7, 2026

1 SPC verified storm report — hail up to 1"

NEXRAD radar during the Friday, August 7, 2026 storm activity in Brown County, Minnesota
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 NWS warning — hail up to 0.75"

“At 942 PM CDT, Doppler radar was tracking a strong thunderstorm 7 miles south of Comfrey, or 29 miles southwest of New Ulm, moving east at 30 mph. Hazard: Wind gusts up to 40 mph and penny size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Brown County

Monday, June 29, 2026

1 NWS warning — hail up to 0.88"

NEXRAD radar during the Monday, June 29, 2026 storm activity in Brown County, Minnesota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 1025 PM CDT, Doppler radar was tracking a strong thunderstorm near Walnut Grove, or 31 miles southwest of Redwood Falls, moving northeast at 60 mph. Hazard: Wind gusts of 50 to 55 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Brown County

Sunday, June 28, 2026

1 NWS warning — hail up to 0.25"

“At 620 AM CDT, Doppler radar was tracking a line of strong thunderstorms extending from 6 miles northeast of Wabasso to near Comfrey, or extending from 6 miles southwest of Redwood Falls to 21 miles southwest of New Ulm, moving northeast at 30 mph. Hazard: Wind gusts up to 50 mph and pea size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects.”

NWS severe weather mention · Brown County

Tuesday, June 23, 2026

1 NWS warning — hail up to 0.88"

NEXRAD radar during the Tuesday, June 23, 2026 storm activity in Brown County, Minnesota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“At 841 PM CDT, Doppler radar was tracking a strong thunderstorm 6 miles southwest of Gibbon, or 12 miles northwest of New Ulm, moving southeast at 25 mph. Hazard: Wind gusts up to 40 mph and nickel size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Brown County

Monday, June 15, 2026

1 NWS warning — hail up to 0.5"

“At 1102 PM CDT, Doppler radar was tracking an area of strong thunderstorms across southeastern Brown and northwestern Redwood counties. These storms are moving southeast at 45 mph. Hazard: Wind gusts up to 40 mph and half inch size hail. Impact: Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible. Locations impacted include...”

NWS severe weather mention · Brown County

Saturday, May 23, 2026

2 SPC verified storm reports — hail up to 1"

NEXRAD radar during the Saturday, May 23, 2026 storm activity in Brown County, Minnesota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

“Report from mPING: Quarter (1.00 in.). (MPX)”

SPC verified report · 1 W New Ulm

Thursday, May 14, 2026

4 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Corson, Campbell, McPherson, Brown, Marshall, Roberts, Walworth, Edmunds, Day, Dewey, Potter, Faulk and Grant. WINDS...West 20 to 30 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 17 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Brown County

“Strong wind gusts up to 50 mph are expected to persist through the afternoon hours today. Localized stronger wind gusts of more than 50 mph will be possible as the result of sprinkles or brief showers moving through this morning into the afternoon. This will lead to patchy to areas of blowing dust and reduced visibilities between 1 to 3 miles.”

NWS severe weather mention · Brown County

Wednesday, May 13, 2026

4 NWS warnings — wind gusts up to 50 mph

“AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Brown, Marshall, Roberts, Day, Spink, Clark, Codington, Grant, Hamlin and Deuel. WINDS...West 25 to 35 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 18 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Brown County

“AFFECTED AREA...In Minnesota, Traverse and Big Stone. In South Dakota, Brown, Marshall, Roberts, Day, Spink, Clark, Codington, Grant, Hamlin and Deuel. WINDS...West 25 to 35 mph with gusts up to 50 mph. RELATIVE HUMIDITY...As low as 18 percent. IMPACTS...Any fires that ignite will spread rapidly and become difficult to control or suppress.”

NWS severe weather mention · Brown County

Friday, April 17, 2026

1 SPC verified storm report — hail up to 1"

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

“Photo measurement provided via NWSChat. Time estimated via radar. (MPX)”

SPC verified report · New Ulm

Monday, April 13, 2026

1 SPC verified storm report — hail up to 1.75"

NEXRAD radar during the Monday, April 13, 2026 storm activity in Brown County, Minnesota
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.

Sunday, April 12, 2026

1 SPC verified storm report — hail up to 2.75"

NEXRAD radar during the Sunday, April 12, 2026 storm activity in Brown County, Minnesota
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, April 8, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 25 to 40 mph with gusts up to 50 mph expected. WHERE...In Minnesota, Big Stone and Traverse Counties. In South Dakota, Brown, Clark, Codington, Day, Grant, Marshall, Roberts, and Spink Counties. WHEN...Until 9 PM CDT this evening. IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result.”

NWS severe weather mention · Brown County

Saturday, March 14, 2026

4 NWS warnings — wind gusts up to 55 mph

“...POWERFUL WINTER STORM ON TRACK TO BRING EXTREME SNOW ACCUMULATIONS AND STRONG WINDS... ...A WINTRY MIX OF RAIN, FREEZING RAIN, AND SLEET LATE TONIGHT ACROSS SOUTHERN MINNESOTA... ...TRAVEL MAY BECOME IMPOSSIBLE LATE TONIGHT AND SUNDAY... .A major winter storm will move across the Upper Midwest starting late this afternoon and lasting through Sunday evening.”

NWS severe weather mention · Brown County

“...POWERFUL WINTER STORM ON TRACK TO BRING EXTREME SNOW ACCUMULATIONS AND STRONG WINDS... ...A WINTRY MIX OF RAIN, FREEZING RAIN, AND SLEET LATE TONIGHT ACROSS SOUTHERN MINNESOTA... ...TRAVEL MAY BECOME IMPOSSIBLE LATE TONIGHT AND SUNDAY... .A major winter storm will move across the Upper Midwest starting late this afternoon and lasting through Sunday evening.”

NWS severe weather mention · Brown County

Friday, March 13, 2026

2 NWS warnings — wind gusts up to 70 mph

“WHAT...Northwest winds 35 to 45 mph with gusts up to 70 mph. WHERE...Portions of central, south central, southwest, and west central Minnesota. WHEN...Until 7 AM CDT this morning. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Brown County

“Winds are easing and will continue to do so through the day. A couple gusts of 45 to 50 mph are still possible through 9 AM.”

NWS severe weather mention · Brown County

Thursday, March 12, 2026

3 NWS warnings — wind gusts up to 65 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 65 mph expected. WHERE...Portions of central, south central, southwest, and west central Minnesota. WHEN...Until 7 AM CDT Friday. IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Brown County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 65 mph expected. WHERE...Portions of central, south central, southwest, and west central Minnesota. WHEN...From 10 PM this evening to 7 AM CDT Friday. IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Brown County

Wednesday, March 11, 2026

2 NWS warnings — wind gusts up to 65 mph

“WHAT...Northwest winds 30 to 40 mph with gusts up to 65 mph expected. WHERE...Portions of central, south central, southwest, and west central Minnesota. WHEN...From 10 PM Thursday to 7 AM CDT Friday. IMPACTS...Damaging winds will blow down trees and power lines. Widespread power outages are expected. Travel will be difficult, especially for high profile vehicles.”

NWS severe weather mention · Brown County

“WHAT...Northwest winds 30 to 40 mph with gusts up to 65 mph possible. WHERE...Portions of central, south central, southwest, and west central Minnesota. WHEN...From Thursday evening through Friday morning. IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel could be difficult, especially for high profile vehicles.”

NWS severe weather mention · Brown County

Wednesday, February 18, 2026

1 NWS warning — wind gusts up to 50 mph

“WHAT...West winds 25 to 35 mph with gusts up to 50 mph. WHERE...Brown, Martin, Watonwan, Redwood, Lac Qui Parle, and Yellow Medicine Counties. 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 · Brown County

Sunday, December 28, 2025

5 NWS warnings — wind gusts up to 55 mph

“...BLIZZARD CONDITIONS CONTINUE ACROSS SOUTHERN AND WESTERN MINNESOTA... ...TRAVEL IS NOT ADVISED... .Steady snow will continue through the evening and taper off overnight. Total accumulations of 6 to 10 inches are forecast across eastern Minnesota and western Wisconsin, with amounts tapering off to 4 or 5 inches across far western Minnesota.”

NWS severe weather mention · Brown County

“...BLIZZARD CONDITIONS CONTINUE ACROSS SOUTHERN AND WESTERN MINNESOTA... ...TRAVEL NOT ADVISED ACROSS SOUTHERN MINNESOTA... .Steady snow will continue through the evening and taper off overnight. Accumulations of 6 to 10 inches are forecast across eastern Minnesota and western Wisconsin, with amounts tapering off to 4 or 5 inches across far western Minnesota.”

NWS severe weather mention · Brown County

Saturday, December 27, 2025

2 NWS warnings — wind gusts up to 55 mph

“...ACCUMULATING SNOW AND STRONG WINDS EXPECTED TO BRING BLIZZARD CONDITIONS TO PORTIONS OF WESTERN, CENTRAL, AND SOUTHERN MINNESOTA LATE SUNDAY MORNING AND SUNDAY NIGHT... .A developing winter storm over the Northern Plains this evening will become much stronger as it moves across the Upper Midwest Sunday and Sunday night.”

NWS severe weather mention · Brown County

“...ACCUMULATING SNOW AND STRONG WINDS EXPECTED TO BRING BLIZZARD CONDITIONS TO PORTIONS OF CENTRAL AND SOUTHERN MINNESOTA LATE SUNDAY MORNING AND SUNDAY NIGHT... .A developing winter storm over the Northern Plains today will become much stronger as it moves across the Upper Midwest Sunday and Sunday night.”

NWS severe weather mention · Brown County

Thursday, December 18, 2025

1 NWS warning — wind gusts up to 50 mph

“...GUSTY WINDS, BLOWNG SNOW, AND ICY FLASH FREEZE CONDITIONS TODAY... .Light snow, gusty northwest winds of 40 to 50 mph, & plummeting temperatures develop today behind an Arctic front. While snow accumulations will likely only be an inch or less, low visibility is expected as the gusty winds blow around the falling snow.”

NWS severe weather mention · Brown County

Monday, November 24, 2025

1 NWS warning — wind gusts up to 50 mph

“WHAT...Northwest winds 20 to 30 mph with gusts of 40 to 50 mph expected. WHERE...Blue Earth, Brown, Faribault, Freeborn, Le Sueur, Martin, Nicollet, Rice, Steele, Waseca, Watonwan, Redwood, and Yellow Medicine Counties. WHEN...From 3 PM Tuesday to 6 AM 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 · Brown 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 Brown County, MN?

The most recent recorded event was in September 2026. Official NWS and SPC records show 45 severe weather events in Brown 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 Brown County recently?

Yes — 14 hail reports in the last 12 months, with hail up to 2.75" 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 Brown 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 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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