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

Hail, Wind & Tornado Reports in Big Horn County, WY

Public hail, wind, and tornado reports across Big Horn County, WY from June 3, 1958 through August 24, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 82401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
61
Wind Reports
91
Tornado Reports
33
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Big Horn County, WY · 1958–present Updated  Daily · last Aug 24, 2026

Latest NWS Hail Reports in Big Horn County

30 reports
Free hail report for your home →
1.25″ hail
May 26, 2023
9:50 PM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 SW Byron, WY
1.00″ hail
May 25, 2023
10:30 PM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8 NW Greybull, WY
1.00″ hail
May 17, 2022
11:22 PM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: ONE INCH DIAMETER HAIL REPORTED 3 MILES NORTH OF BASIN ALONG WYOMING HIGHWAY 789.
NWS Hail Report Location: 3 N Basin, WY
1.25″ hail
Jul 28, 2018
12:02 AM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 SE Crooked Creek Natu, WY
1.50″ hail
Jul 27, 2018
12:34 AM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: NUMEROUS REPORTS OF QUARTER TO PING PONG BALL SIZE HAIL IN COWLEY.
NWS Hail Report Location: Cowley, WY
1.00″ hail
Jul 27, 2018
12:33 AM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: A TRAINED SPOTTER REPORTED QUARTER SIZE HAIL.
NWS Hail Report Location: 2 W Cowley, WY
1.50″ hail
Jun 12, 2017
10:00 PM UTC
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: NICKLE TO A FEW PING PONG BALL SIZED HAIL OBSERVED NEAR MANDERSON.
NWS Hail Report Location: Manderson, WY
1.75″ hail
Jul 27, 2015
2:48 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Hail up to the size of golf balls was reported near Emblem.
NWS Hail Report Location: .55 WSW Emblem, WY
1.00″ hail
Jul 27, 2015
2:43 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Quarter sized hail was reported in Burlington.
NWS Hail Report Location: .28 SSW Burlington, WY
0.75″ hail
Jun 9, 2015
8:13 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Hail up to the size of pennies was reported by trained spotters north of Shell.
NWS Hail Report Location: 8.49 NNW Shell, WY
0.88″ hail
May 31, 2014
2:12 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Nickel sized hail was observed on the north side of Lovell.
NWS Hail Report Location: 1.16 NNW Lovell, WY
1.00″ hail
May 31, 2014
2:02 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Hail the size of quarters was reported in Lovell.
NWS Hail Report Location: 1.23 WNW Lovell, WY
0.75″ hail
Aug 1, 2013
3:41 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Wind-driven hail up to the size of pennies caused corn crop damage west of Hyattville.
NWS Hail Report Location: 4.67 WSW Hyattville, WY
1.00″ hail
Jun 13, 2013
12:55 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: There were numerous spotter reports of hail in Greybull with the largest stones reaching the size of quarters.
NWS Hail Report Location: .45 SE Greybull, WY
0.88″ hail
Jun 13, 2013
12:45 PM MST-7
Hail report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Hail Report Description: Nickel sized hail was observed by a spotter south of Otto.
NWS Hail Report Location: 2.02 SSW Otto, WY
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 Big Horn County

30 reports
Free hail report + wind check →
55 mph
Aug 24, 2026
3:35 AM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport (ASOS). Wind gust likely caused by an outflow boundary.
NWS Wind Report Location: 2 Nw Greybull, WY
60 mph
Aug 18, 2026
11:52 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 6 Ne Hyattville, WY
66 mph
Oct 12, 2025
5:49 AM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: Mesonet station TT631 Willow Creek.
NWS Wind Report Location: 15 E Lovell, WY
61 mph
Oct 12, 2025
5:15 AM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: AWOS station KU68 Cowley Airport.
NWS Wind Report Location: 2 NNE Cowley, WY
63 mph
Aug 1, 2025
9:04 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport. From a strong outflow boundary.
NWS Wind Report Location: 2 NW Greybull, WY
67 mph
Jul 30, 2025
11:40 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
59 mph
Jul 26, 2025
11:52 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: Mesonet station HHRW4 Hyattville 5 ENE.
NWS Wind Report Location: 6 NE Hyattville, WY
67 mph
Jul 4, 2025
10:21 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
58 mph
Sep 3, 2024
10:43 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
63 mph
Aug 5, 2024
1:35 AM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: AWOS station KU68 Cowley Airport.
NWS Wind Report Location: 2 NNE Cowley, WY
69 mph
Jul 26, 2024
9:54 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
59 mph
Jul 6, 2024
8:55 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
59 mph
Jul 1, 2024
8:38 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
71 mph
Jun 14, 2024
10:35 PM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS station KGEY Greybull Airport.
NWS Wind Report Location: 2 NW Greybull, WY
63 mph
Jul 16, 2022
12:17 AM UTC
Wind report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Wind Report Description: ASOS STATION KGEY GREYBULL AIRPORT.
NWS Wind Report Location: 2 NW Greybull, WY
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 Big Horn County

30 reports
UNK category
Jun 13, 2017
12:21 AM UTC
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: PHOTO RECEIVED OF ROPE TORNADO WEST OF BURLINGTON
NWS Tornado Report Location: 4 W Burlington, WY
EF0 category
May 24, 2014
1:36 PM MST-7
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: A trained spotter observed a landspout tornado for several minutes near the North Big Horn County Airport north of Cowley. The tornado was nearly stationary for a few minutes and moved slowly to the southeast and nearly crossed the airport runway.
NWS Tornado Report Location: .36 ENE Cowley Arpt, WY
EF0 category
Aug 12, 2010
2:11 PM MST-7
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: Several reports were received from public sources of a small tornado being viewed looking west from U.S. Highway 310 between Greybull and Lovell.
NWS Tornado Report Location: 7.88 NNE Emblem, WY
EF1 category
Jun 1, 2009
2:58 PM MST-7
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: A tornado struck a ranch, including a home, east of Manderson. Three children were in the house at the time of the tornado. The tornado was about 100 feet wide and traveled approximately one-third mile from north-to-south, crossing State Highway 31 before dissipating. Several trees, two fences, and a wooden corral sustained considerable damage. An All-Terrain Vehicle (ATV) was lifted, spun 180 degrees, and moved about 15 feet. A bicycle was tossed onto the roof of the ranch home and several water bins were tossed about.||This landspout tornado occurred in a post-cold frontal environment. A cold front moved through Manderson around 0830MST on Monday leaving northwest wind of 30 to 40 mph in its wake. Solar heating continued to warm the surface while colder air streamed into the region aloft. This helped set the stage for an unstable atmosphere during the afternoon. A west-moving boundary from showers to the east of Manderson in the Bighorn Mountain foothills helped initiate the updraft that spawned the tornado.
NWS Tornado Report Location: 6.7 NE Rairden, WY
F0 category
Jun 1, 2005
12:40 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: A tornado touched down 1.5 miles northwest of Burlington. The tornado moved east for 10 miles before dissipating 4 miles north of Otto. This tornado formed over open country without damage, therefore it was rated as F0.
NWS Tornado Report Location: 2 NW Burlington, WY
F0 category
Jun 1, 2005
12:38 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: At 1238 MST, a tornado formed 8 miles southwest of Lovell and moved east to 4 miles south/southwest of Lovell before lifting off the ground. This tornado formed over open country resulting in no damage, therefore it was rated F0.
NWS Tornado Report Location: 8 SW Lovell, WY
F0 category
Jun 1, 2005
12:29 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: This tornado formed 5 miles east/southeast of Powell in Park County and entered Big Horn County about 6 miles southwest of Byron at 1229 MST. The tornado then continued for another half mile before dissipating 5.5 miles southwest of Byron at 1231 MST. This tornado formed over open country without damage, therefore it was rated as F0.
NWS Tornado Report Location: 6 SW Byron, WY
F1 category
Jun 26, 2001
5:56 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 S Greybull, WY
F0 category
Jun 26, 2001
5:42 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 10 SW Basin, WY
F0 category
Jul 24, 1997
3:09 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 2 W Basin, WY
F0 category
Jun 13, 1997
6:35 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 S Basin, WY
F0 category
Jun 13, 1997
6:25 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 3 S Basin, WY
F1 category
Jun 6, 1997
5:10 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: N Greybull, WY
F0 category
Jun 6, 1997
5:00 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 W Basin, WY
F0 category
Jun 6, 1997
4:58 PM MST
Tornado report for Big Horn County, WY
Big Horn County · 4,267 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 N Greybull, WY
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 Big Horn County on the Interactive Map

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Browse Cities with NWS Storm Reports in Big Horn County

NWS Storm Reports & Census Data

U.S. Census Data · County

Big Horn County, WY area census snapshot

People & households
Population11,737
Households4,357
Housing units5,370
Income
Median household income$60,547
$100k+ households35.5%
$150k+ households12.2%
Housing stock
Single-family detached4,267
Attached single-family20
Small multifamily210
Large multifamily52
Mobile homes807
Housing mix
Single-family share79.5%
Attached-home share0.4%
Multifamily share4.9%
Mobile-home share15.0%
Ownership & occupancy
Owner-occupied3,364
Renter-occupied993
Vacant units1,013
Home value & age
Median home value$198,200
Owner homes $300k+25.4%
Owner homes $500k+8.7%
Owner homes $750k+3.4%
Median year built1967
Older-home share67.7%
Vehicle context
Households with cars4,221
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 Big Horn County

Get a Remote Hail Inspection

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

Our records show 61 hail, 91 wind, and 33 tornado reports in Big Horn County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 24, 2026.

What is the largest hail ever reported in Big Horn County?

The largest hail size in these storm-report records in Big Horn County is 2.50″. It was reported near .45 SE Greybull, WY on August 7, 2009.

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

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

I am selling a home in Big Horn 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 Big Horn County address?

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