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

Hail, Wind & Tornado Reports in Lyman County, SD

Public hail, wind, and tornado reports across Lyman County, SD from April 18, 1957 through August 18, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 57532 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
236
Wind Reports
313
Tornado Reports
39
Max Hail Size
8.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Lyman County, SD · 1957–present Updated  Daily · last Aug 18, 2026

Latest NWS Hail Reports in Lyman County

30 reports
Free hail report for your home →
1.00″ hail
Jul 4, 2026
11:55 PM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: Hail up to the size of quarters via Facebook report.
NWS Hail Report Location: Oacoma, SD
1.25″ hail
Jul 4, 2026
11:37 PM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: mainly dime and nickel size hail with some larger hailstones thrown in.
NWS Hail Report Location: 3 NE Oacoma, SD
1.75″ hail
Jun 4, 2026
1:10 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: Time estimated by Radar.
NWS Hail Report Location: 4 WNW Iona, SD
1.50″ hail
Jun 3, 2026
11:26 PM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8 SW Presho, SD
1.75″ hail
Jun 3, 2026
3:50 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: time estimated from radar.
NWS Hail Report Location: 5 SW Counselor Creek Re, SD
1.00″ hail
Aug 14, 2025
1:21 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: Report from mPING: Quarter (1.00 in.).
NWS Hail Report Location: 11 S Vivian, SD
1.25″ hail
Aug 4, 2025
1:15 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: An inch of rain... winds around 35 mph.
NWS Hail Report Location: Kennebec, SD
1.00″ hail
Aug 4, 2025
12:37 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: Dime to quarter size hail.
NWS Hail Report Location: 9 SW Oacoma, SD
1.00″ hail
Jul 29, 2025
9:51 PM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: Member of the public reports hail for about 20 minutes... with the largest being quarter sized. Time estimated by radar.
NWS Hail Report Location: 7 S Reliance, SD
1.75″ hail
Jul 28, 2025
11:50 PM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 WSW Lower Brule, SD
2.50″ hail
Jul 10, 2025
12:59 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: Spotter reports Hen Egg to Tennis Ball size hail near Lyman. Time estimated based on radar.
NWS Hail Report Location: Lyman, SD
1.00″ hail
Jun 28, 2025
12:10 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: 0.60 inches of rain and quarter size hail. Radar estimated time.
NWS Hail Report Location: 8 SSW Kennebec, SD
1.00″ hail
Jul 30, 2024
11:11 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 W Reliance, SD
1.25″ hail
Aug 5, 2023
12:47 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8 S Cedar Creek Rec Are, SD
1.50″ hail
Jul 19, 2023
1:49 AM UTC
Hail report for Lyman County, SD
Lyman County · 1,269 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 SW Kennebec, 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 Lyman County

30 reports
Free hail report + wind check →
60 mph
Aug 18, 2026
7:30 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Strong winds and rain was coming down horizontally (0.70in). time estimated by Radar.
NWS Wind Report Location: 5 N Iona, SD
58 mph
Aug 11, 2026
7:35 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station KBMS2 Kennebec 6SSE (SD Mesonet).
NWS Wind Report Location: 6 Sse Kennebec, SD
62 mph
Jul 20, 2026
12:05 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station KBMS2 Kennebec 6SSE (SD Mesonet).
NWS Wind Report Location: 6 Sse Kennebec, SD
62 mph
Jul 19, 2026
11:54 PM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: PWS station 1.1 E Presho.
NWS Wind Report Location: 1.1 E Presho, SD
58 mph
Jul 3, 2026
7:40 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Personal weather station 4.9 miles SW of Kennebec recorded a gust of 58 mph.
NWS Wind Report Location: 4 SW Kennebec, SD
62 mph
Jul 3, 2026
7:25 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 13 Vivian (SDDOT).
NWS Wind Report Location: 9 NNW Vivian, SD
63 mph
Jul 2, 2026
8:34 PM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 54 Reliance (SDDOT).
NWS Wind Report Location: 3 SE Reliance, SD
69 mph
Jul 2, 2026
8:24 PM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 54 Reliance (SDDOT).
NWS Wind Report Location: 3 SE Reliance, SD
64 mph
Jul 2, 2026
7:36 PM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 285 Lower Brule 14 W (SDDOT).
NWS Wind Report Location: 6 SW Joe Creek Rec Area, SD
64 mph
Jul 1, 2026
7:40 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station OCMS2 Oacoma 2W (SD Mesonet).
NWS Wind Report Location: 2 W Oacoma, SD
59 mph
Jun 29, 2026
10:20 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station VVMS2 Vivian 12S (SD Mesonet).
NWS Wind Report Location: 12 S Vivian, SD
70 mph
Jun 29, 2026
10:13 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 13 Vivian (SDDOT).
NWS Wind Report Location: 9 NNW Vivian, SD
59 mph
Jun 10, 2026
3:05 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station LBMS2 Lower Brule 2WNW (SD Mesonet).
NWS Wind Report Location: 1 WNW Lower Brule, SD
58 mph
Jun 5, 2026
4:24 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 54 Reliance (SDDOT).
NWS Wind Report Location: 3 SE Reliance, SD
71 mph
Jun 5, 2026
4:05 AM UTC
Wind report for Lyman County, SD
Lyman County · 1,269 Homes in County
Wind Report Description: Mesonet station 285 Lower Brule 14 W (SDDOT).
NWS Wind Report Location: 6 SW Joe Creek Rec Area, 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 Lyman County

30 reports
UNK category
Jun 13, 2022
4:50 AM UTC
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: OBSERVER WITNESSED A TORNADO LOOKING SOUTH FROM HIS LOCATION. THE TORNADO WAS VISIBLE FOR A SHORT TIME BEFORE BECOMING RAIN WRAPPED. THE OBSERVER SAID IT APPEARED THE TORNADO WAS MOVING OFF TOWARD THE EAST TO NORTHEAST DIRECTION.
NWS Tornado Report Location: 5 S Joe Creek Rec Area, SD
UNK category
Aug 9, 2019
9:58 PM UTC
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: BRIEF TORNADO TOUCHDOWN.
NWS Tornado Report Location: 5 S Joe Creek Rec Area, SD
EF0 category
May 8, 2011
7:03 PM CST-6
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A narrow weak tornado touched down briefly southwest of Presho with no damage reported.
NWS Tornado Report Location: 7.69 SW Presho, SD
EF0 category
Jul 23, 2010
4:57 PM CST-6
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A tornado touched down briefly west of Vivian with no damage reported.
NWS Tornado Report Location: 1 W Vivian, SD
F0 category
Jun 11, 2003
8:30 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A tornado touched down briefly north of Kennebec causing no damage.
NWS Tornado Report Location: 5 N Kennebec, SD
F0 category
Jun 11, 2003
8:13 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A tornado touched down east of Reliance causing no damage.
NWS Tornado Report Location: 7 E Reliance, SD
F0 category
Jun 11, 2003
7:09 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A tornado touched down briefly north of Kennebec causing no damage.
NWS Tornado Report Location: 4 N Kennebec, SD
F0 category
Jul 24, 2002
7:14 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A tornado touched down briefly north of Presho and caused no damage. Path length and width were estimated.
NWS Tornado Report Location: 14 N Presho, SD
F0 category
May 9, 1999
8:45 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: A weak tornado touched down briefly three miles south of Reliance with no damage reported. Path length and width were estimated.
NWS Tornado Report Location: 3 S Reliance, SD
F0 category
Aug 5, 1987
6:35 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, SD
F0 category
Aug 5, 1987
6:15 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, SD
F1 category
Aug 5, 1987
5:44 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, SD
F2 category
Aug 5, 1987
5:40 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, SD
F0 category
Aug 5, 1987
5:35 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, SD
F1 category
Jul 9, 1987
5:30 PM CST
Tornado report for Lyman County, SD
Lyman County · 1,269 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, 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 Lyman County on the Interactive Map

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Wind
Tornado

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Browse Cities with NWS Storm Reports in Lyman County

Presho, SD 116
Hail, wind & tornado reports
Kennebec, SD 112
Hail, wind & tornado reports
Oacoma, SD 112
Hail, wind & tornado reports
Vivian, SD 102
Hail, wind & tornado reports
Reliance, SD 78
Hail, wind & tornado reports
Lower Brule, SD 46
Hail, wind & tornado reports
West Brule, SD 18
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Lyman County, SD area census snapshot

People & households
Population3,717
Households1,185
Housing units1,561
Income
Median household income$61,169
$100k+ households32.7%
$150k+ households11.3%
Housing stock
Single-family detached1,269
Attached single-family14
Small multifamily79
Large multifamily22
Mobile homes168
Housing mix
Single-family share81.3%
Attached-home share0.9%
Multifamily share6.5%
Mobile-home share10.8%
Ownership & occupancy
Owner-occupied856
Renter-occupied329
Vacant units376
Home value & age
Median home value$156,500
Owner homes $300k+21.3%
Owner homes $500k+12.3%
Owner homes $750k+4.6%
Median year built1974
Older-home share60.1%
Vehicle context
Households with cars1,110
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 Lyman County

57532 314
Fort Pierre, SD Hail, wind & tornado reports
57533 133
Gregory, SD Hail, wind & tornado reports
57544 125
Kennebec, SD Hail, wind & tornado reports
57568 107
Presho, SD Hail, wind & tornado reports
57534 101
Hamill, SD Hail, wind & tornado reports
57569 91
Reliance, SD Hail, wind & tornado reports
57576 79
Vivian, SD Hail, wind & tornado reports
57365 66
Oacoma, SD Hail, wind & tornado reports
57548 44
West Brule, SD Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in Lyman 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 Lyman County have on record?

Our records show 236 hail, 313 wind, and 39 tornado reports in Lyman County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 18, 2026.

What is the largest hail ever reported in Lyman County?

The largest hail size in these storm-report records in Lyman County is 8.00″. It was reported near N Vivian, SD on July 23, 2010.

A storm report showed up near my home in Lyman 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 Lyman County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Lyman 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 Lyman County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Lyman 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 Lyman County address?

Use the address search to pull a free address-level hail report for any property in Lyman 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 Lyman County, SD, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Lyman 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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