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HailGeeks
NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in Brown County, SD

Public hail, wind, and tornado reports across Brown County, SD from April 19, 1955 through August 30, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 57401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
430
Wind Reports
428
Tornado Reports
86
Max Hail Size
4.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Brown County, SD · 1955–present Updated  Daily · last Aug 30, 2026

Latest NWS Hail Reports in Brown County

30 reports
Free hail report for your home →
1.50″ hail
Aug 30, 2026
8:35 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Report and photo relayed via Facebook. Time estimated by Radar.
NWS Hail Report Location: 4 Ne Verdon, SD
2.00″ hail
Jul 25, 2026
2:47 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Photo of 2 to 2.25 inch hail. Time estimated via radar.
NWS Hail Report Location: 6 Sw Columbia, SD
2.00″ hail
Jul 25, 2026
2:39 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Photo sent of 2 inch hail 10 miles north of Aberdeen. Time estimated by radar.
NWS Hail Report Location: 3 Sse Westport, SD
1.00″ hail
Jul 25, 2026
2:31 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Trained spotters reported heavy downpour and quarter sized hail_ the combination reducing visibility to near zero. Report relayed via Brown County EM.
NWS Hail Report Location: 0.5 N Westport, SD
1.75″ hail
Jul 25, 2026
2:25 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Westport COOP observer estimated hail to the size of golf balls_ wind damage was also observed at the location. Time based off Radar.
NWS Hail Report Location: 3 Nw Westport, SD
1.00″ hail
Jul 25, 2026
2:25 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Brown County EM Reported quarter sized hail at the intersection of 118th street and 387th Ave.
NWS Hail Report Location: 2 N Westport, SD
1.00″ hail
Jul 25, 2026
1:21 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Law enforcement relayed a report of estimated 60-70 mph wind and quarter sized hail at 118th Street and US 281. Report relayed by Brown County EM.
NWS Hail Report Location: 2 Nnw Westport, SD
1.00″ hail
Jun 29, 2026
1:04 PM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Groton, SD
1.50″ hail
Aug 5, 2025
9:39 PM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Report from mPING: Ping Pong Ball (1.50 in.).
NWS Hail Report Location: 2 NE Elm Lake, SD
1.00″ hail
Aug 5, 2025
9:34 PM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Quarter size hail reported in Elm Lake. Time estimated by radar.
NWS Hail Report Location: Elm Lake, SD
1.00″ hail
Jul 31, 2024
9:15 PM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Nickel to quarter size hail.
NWS Hail Report Location: 5 N Groton, SD
1.25″ hail
Jul 10, 2024
1:10 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 E Frederick, SD
1.00″ hail
Jul 6, 2024
9:15 PM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Groton Police reported quarter sized hail in town.
NWS Hail Report Location: Groton, SD
1.00″ hail
Jun 3, 2024
12:50 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 SSE Claremont, SD
1.50″ hail
Jun 3, 2024
12:06 AM UTC
Hail report for Brown County, SD
Brown County · 11,148 Homes in County
Hail Report Description: Lasted for a couple minutes.
NWS Hail Report Location: 4 S Sand Lake Wildlife, SD
Showing 15 of 30
Hail Damage Risk for Your Home +

Hail reports describe hail by diameter, often comparing stone size to familiar objects like peas, quarters, golf balls, and softballs. Use this guide as a starting point for possible hail damage to your roof, siding, gutters, vents, windows, and exterior. Actual hail damage depends on hail hardness, density, wind speed, impact angle, roof age, shingle condition, roof pitch, roofing material, installation quality, and prior storm damage.

Pea
0.25″
Low

Usually too small to cause hail damage to most sound asphalt roofs, siding, or gutters.

Mothball
0.50″
Sub-Severe Watch

Below the NWS severe-hail threshold, but not always harmless. Repeated small hail can scuff surfaces, wear aging shingles, and loosen protective granules over time.

Penny
0.75″
Minor / Watch

Below the NWS severe-hail threshold, but roof hail damage is still possible on older, brittle, poorly installed, or previously damaged shingles. May also mark screens, vents, gutters, and soft metal.

Nickel
0.88″
Minor / Watch

Still below the severe-hail threshold, but large enough to leave visible marks on soft metal and add wear to older or hail-weakened roof shingles.

Quarter
1.00″
Watch

The NWS severe-hail threshold. Quarter-size hail can bruise shingles, dent soft metal, and create roof hail damage worth checking.

Half Dollar
1.25″
Watch

More likely to dent gutters, vents, flashing, and siding. Hail damage risk rises quickly on older roofs or hail-weakened shingles.

Ping Pong / Walnut
1.50″
Likely

Hail damage becomes more likely, including bruised shingles, granule loss, dented siding, and damaged roof vents.

Golf Ball
1.75″
Likely

Often causes roof hail damage, cracked shingles, dented gutters, damaged flashing, and siding impacts. A roof inspection is recommended.

Hen Egg
2.00″
Serious

Can crack or puncture shingles, expose mat, dent siding, and cause widespread hail damage across the roof and exterior.

Tennis Ball
2.50″
Serious

Can cause heavy roof hail damage, punctured siding, broken skylights, damaged vents, and widespread exterior damage.

Baseball
2.75″
Major

Major hail damage is likely, including severe roof impacts, damaged siding, broken windows, and possible major roof repairs.

Tea Cup / Large Apple
3.00″
Major

Can cause heavy hail damage across the roof, siding, gutters, windows, and exterior. Significant repairs are often needed.

Softball
4.00″
Extreme

Destructive hail damage. Can severely damage roofing materials, siding, windows, gutters, vents, vehicles, and exterior surfaces.

Grapefruit
4.50″
Extreme

Catastrophic hail damage risk for roofs, windows, vehicles, siding, gutters, and exterior surfaces.

Source: NOAA / National Weather Service hail size references are used for hail-size comparisons and the 1.00″ severe-hail threshold. Damage descriptions are general homeowner guidance, not official NOAA/NWS damage ratings. Sub-severe hail under 1.00″ is below the severe threshold, but that does not mean “no roof damage.” Penny- to nickel-size hail can still contribute to granule loss, cosmetic surface marks, and added wear, especially on older, brittle, poorly installed, or previously damaged roofs.

Latest NWS Wind Reports in Brown County

30 reports
Free hail report + wind check →
63 mph
Aug 25, 2026
3:46 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Personal weather station.
NWS Wind Report Location: Westport, SD
72 mph
Jul 26, 2026
2:59 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Weatherlink station 3.2 east of Groton.
NWS Wind Report Location: 2 E Groton, SD
62 mph
Jul 26, 2026
2:45 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Mesonet station GOTS2 Groton 9 NNE (SD Mesonet).
NWS Wind Report Location: 7 S Claremont, SD
60 mph
Jul 26, 2026
2:38 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: ASOS station KABR Aberdeen Rgnl AP.
NWS Wind Report Location: 1 Sse Aberdeen Regional, SD
59 mph
Jul 26, 2026
2:19 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: ASOS station KABR Aberdeen Rgnl AP.
NWS Wind Report Location: 1 Sse Aberdeen Regional, SD
68 mph
Jul 26, 2026
2:15 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Mesonet station EW2245 Richmond Lake Rec Area 5 S.
NWS Wind Report Location: 5 S Richmond Lake Rec A, SD
69 mph
Jul 26, 2026
2:10 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2 W Richmond Lake Rec A, SD
60 mph
Jul 25, 2026
3:05 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 4 Nne Hutterville Colon, SD
UNK mph
Jul 25, 2026
1:14 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Facebook picture of a large tree snapped due to strong winds.
NWS Wind Report Location: Barnard, SD
59 mph
Jul 8, 2026
4:13 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Personal weather station in Warner recorded a wind gust of 59 miles per hour.
NWS Wind Report Location: Warner, SD
71 mph
Jul 8, 2026
3:55 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Mesonet station AWMS2 Aberdeen 10WSW (SD Mesonet).
NWS Wind Report Location: 4 ESE Mina, SD
70 mph
Jul 8, 2026
1:35 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Mesonet station GOTS2 Groton 9 NNE (SD Mesonet).
NWS Wind Report Location: 7 S Claremont, SD
UNK mph
Jul 8, 2026
1:29 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: A corner of a metal shop roof was removed. Time estimated via radar.
NWS Wind Report Location: 5 ESE Bath, SD
68 mph
Jul 8, 2026
1:21 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: KABR ASOS Station reported a peak wind gust of 68 miles per hour.
NWS Wind Report Location: 1 SSE Aberdeen Regional, SD
61 mph
Jul 8, 2026
1:17 AM UTC
Wind report for Brown County, SD
Brown County · 11,148 Homes in County
Wind Report Description: Personal weather station 6 miles northeast of Aberdeen recorded a gust of 61 miles per hour.
NWS Wind Report Location: 5 N Aberdeen Regional A, SD
Showing 15 of 30
Wind Damage Risk for Your Home +

Storm reports list thunderstorm wind gusts in mph. The NWS marks storms as severe at 58+ mph, but wind damage to your home depends on roof age, shingle condition, installation, exposure, nearby trees, and prior hail or wind damage.

Below Severe
Under 58 mph
Minor

Usually little damage to a sound roof, but loose shingles, flashing, or debris may shift.

Severe
58–74 mph
Watch

Can loosen shingles, lift flashing, break limbs, and damage gutters, siding, fences, or trim.

Damaging
75–90 mph
Serious

Can peel shingles, damage vents, tear siding, rip gutters, and expose weak roof areas.

Extreme
90+ mph
Major

Can cause major roof covering loss, tree damage, broken windows, and structural damage.

Source: NOAA / National Weather Service storm reports. Gusts may be measured or estimated; actual wind damage varies by roof condition, exposure, and prior hail or wind damage.

Latest NWS Tornado Reports in Brown County

30 reports
UNK category
Jul 13, 2025
9:49 PM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: [Landspout] Public reported a landspout briefly touching down in a cornfield 4 miles southeast of Aberdeen... then moving into their backyard. Loose items in the yard were reported to have been tossed into the adjacent cornfield... and an image was sent showing play structures tipped over. No other damage was reported. Time estimated by radar.
NWS Tornado Report Location: 4 SE Aberdeen Regional, SD
UNK category
May 9, 2022
1:37 AM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 1 S COLUMBIA. POLE BARN DEMOLISHED. NO OTHER DAMAGE NOTED TO SURROUNDING BUILDINGS. RELAYED THROUGH SOCIAL MEDIA.
NWS Tornado Report Location: 1 S Columbia, SD
UNK category
May 9, 2022
1:12 AM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: TORNADO TOUCHED DOWN IN AN OPEN FIELD AND LINGERED FOR LESS THAN A MINUTE. VIDEO SHARED ON SOCIAL MEDIA.
NWS Tornado Report Location: 6 WSW Aberdeen, SD
UNK category
Jun 13, 2020
1:35 AM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: DELAYED SURVEY AFTER ADDITIONAL REPORTS. A NARROW PATH OF DOWNED TREES IN THE MIDDLE OF A LINE OF TREES.
NWS Tornado Report Location: 3 SW Frederick, SD
UNK category
Jun 13, 2020
1:32 AM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: DELAYED SURVEY AFTER ADDITIONAL REPORTS. TWO CALF SHEDS WERE COMPLETELY DESTROYED WITH PIECES OF TIN AND AND DEBRIS LUMBER TOSSED ROUGHLY 1/4 MILE ACROSS A FIELD. A TREE WAS ALSO UPROOTED.
NWS Tornado Report Location: 5 WSW Frederick, SD
UNK category
Jun 13, 2020
1:30 AM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: DELAYED SURVEY AFTER ADDITIONAL REPORTS. TREE BRANCHES WERE TOSSED ROUGHLY 1/4 MILE ACROSS OPEN PASTURE LAND.
NWS Tornado Report Location: 8 WSW Frederick, SD
UNK category
Jun 13, 2017
11:05 PM UTC
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 S Groton, SD
EF0 category
Jun 1, 2012
4:27 PM CST-6
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado touched down briefly north of Columbia with no damage reported.
NWS Tornado Report Location: 2.07 N Columbia, SD
EF2 category
May 22, 2010
8:10 PM CST-6
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: An eighth tornado touched down west of Hecla producing damage to one farm including tearing the roof off of an outbuilding and throwing several grain bins 100 yards or more. Widespread tree damage was also noted. The tornado continued northeast damaging another outbuilding and destroying an empty grain bin before lifting. Wind speeds were estimated between 112 and 120 mph.
NWS Tornado Report Location: 7.81 NW Houghton, SD
EF0 category
May 22, 2010
7:34 PM CST-6
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado entered into western Brown county from southeast Mcpherson county. The tornado was an EF2 before entering Brown county. The tornado slowly dissipated shortly after entering the county with some tree damage observed.
NWS Tornado Report Location: 11.44 WSW Barnard, SD
EF0 category
Aug 14, 2008
2:35 PM CST-6
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado touched down briefly at the Brown County fairgrounds, blowing over several tents and awnings.
NWS Tornado Report Location: 1.72 NNW Aberdeen, SD
EF0 category
Jul 15, 2007
10:18 PM CST-6
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado touched down and blew over an unanchored and unoccupied trailer. There was also some minor tree damage.
NWS Tornado Report Location: 5.77 W Winship, SD
F0 category
Jun 26, 2005
6:22 PM CST
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado occurred briefly northwest of Westport causing no damage.
NWS Tornado Report Location: 4 NW Westport, SD
F1 category
Jun 7, 2005
10:35 PM CST
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado touched down briefly southeast of Hecla and destroyed a garage.
NWS Tornado Report Location: 9 SE Hecla, SD
F1 category
Jun 7, 2005
10:20 PM CST
Tornado report for Brown County, SD
Brown County · 11,148 Homes in County
Tornado Report Description: A tornado touched down southeast of Frederick and did quite a bit of damage to a farm.
NWS Tornado Report Location: 1 SE Frederick, SD
Showing 15 of 30
Tornado Damage Risk for Your Home +

After a tornado, the National Weather Service assigns an EF rating from EF0 to EF5 based on surveyed damage. The rating estimates wind speed from what the tornado damaged, so actual damage can vary by construction quality, roof age, garage doors, windows, trees, debris, and how close the home was to the tornado path.

EF0
65–85 mph
Light

Can peel shingles, damage gutters or siding, break tree limbs, and toss loose outdoor items.

EF1
86–110 mph
Moderate

Can strip roof covering, damage exterior doors, break windows, snap trees, and cause heavier siding or gutter damage.

EF2
111–135 mph
Serious

Can tear off large sections of roofing, break or uproot trees, destroy weaker structures, and cause major exterior damage.

EF3–EF5
136+ mph
Severe

Can remove roofs and walls, destroy large portions of homes, toss vehicles, and cause severe to total destruction near the path.

Source: NOAA / National Weather Service. EF ratings are assigned after a post-storm damage survey and are based on observed damage, not a direct measurement at every home.

NWS Hail, Wind and Tornado Reports in Brown County on the Interactive Map

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NWS Storm Reports & Census Data

U.S. Census Data · County

Brown County, SD area census snapshot

People & households
Population38,079
Households16,364
Housing units18,009
Income
Median household income$70,239
$100k+ households39.2%
$150k+ households14.6%
Housing stock
Single-family detached11,148
Attached single-family294
Small multifamily2,366
Large multifamily3,096
Mobile homes1,027
Housing mix
Single-family share61.9%
Attached-home share1.6%
Multifamily share30.3%
Mobile-home share5.7%
Ownership & occupancy
Owner-occupied10,753
Renter-occupied5,611
Vacant units1,645
Home value & age
Median home value$212,900
Owner homes $300k+29.0%
Owner homes $500k+9.2%
Owner homes $750k+3.0%
Median year built1974
Older-home share59.3%
Vehicle context
Households with cars15,396
Free hail maps

This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.

Top ZIP Codes with NWS Storm Reports in Brown County

Get a Remote Hail Inspection

Not sure if hail may have affected your home in Brown County? Ask a local pro for a Remote Hail Inspection. They can review hail activity for your property and help you decide whether an in-person roof or exterior inspection makes sense.

Frequently asked questions

for homeowners, buyers & sellers
How many hail, wind, and tornado reports does Brown County have on record?

Our records show 430 hail, 428 wind, and 86 tornado reports in Brown County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 30, 2026.

What is the largest hail ever reported in Brown County?

The largest hail size in these storm-report records in Brown County is 4.50″. It was reported near Barnard, SD on June 23, 2002.

A storm report showed up near my home in Brown County — does that mean my roof is damaged?

Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves Brown County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Brown County — why should I look at its storm history?

Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a Brown County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Brown County — how does this help me?

Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.

How do I check hail history for a specific Brown County address?

Use the address search to pull a free address-level hail report for any property in Brown County — no phone number or email required. It shows recent hail activity for that address so you know whether a closer roof or exterior review makes sense.

Where does this storm report data come from, and what are its limits?

Storm reports on this page are public reports from storm events across Brown County, SD, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Brown County, but they do not confirm damage at any specific property. Report locations, sizes, and times may be approximate and can vary from what an individual home experienced. For property-specific hail history, use an address-level hail report or contact a participating local professional for a remote hail inspection. Pros inclusion is not an endorsement, and contacting a professional does not confirm damage at any property.

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