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

Hail, Wind & Tornado Reports in Sweet Grass County, MT

Public hail, wind, and tornado reports across Sweet Grass County, MT from June 16, 1955 through September 7, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 55401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
128
Wind Reports
61
Tornado Reports
2
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Sweet Grass County, MT · 1955–present Updated  Daily · last Sep 7, 2026

Latest NWS Hail Reports in Sweet Grass County

30 reports
Free hail report for your home →
1.00″ hail
Jun 16, 2025
9:44 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Big Timber, MT
1.25″ hail
Jun 14, 2025
11:20 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 12 WNW Rapelje, MT
1.00″ hail
Jul 7, 2022
11:18 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 15 ENE Melville, MT
1.00″ hail
Jul 5, 2022
6:18 AM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: TIME ESTIMATED FROM RADAR.
NWS Hail Report Location: 5 NNE Big Timber, MT
2.00″ hail
Aug 11, 2019
11:32 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: SOCIAL MEDIA PICTURE. TIME ESTIMATED BY RADAR.
NWS Hail Report Location: Big Timber, MT
1.00″ hail
Aug 11, 2019
11:31 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 E Big Timber, MT
1.00″ hail
Aug 11, 2019
11:30 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: A FEW SLIGHTLY LARGER THAN QUARTER SIZED BUT NOT QUIET TO HALF-DOLLAR.
NWS Hail Report Location: Big Timber, MT
1.75″ hail
Aug 11, 2019
11:27 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: 1.75 HAIL REPORTED
NWS Hail Report Location: Big Timber, MT
1.00″ hail
Aug 11, 2019
8:56 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: DIME TO QUARTER SIZE HAIL AND HEAVY RAIN REPORTED
NWS Hail Report Location: 5 W Melville, MT
1.00″ hail
Aug 10, 2019
10:43 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: HAIL WENT FROM PEA TO QUARTER SIZED
NWS Hail Report Location: 11 ENE Melville, MT
1.00″ hail
Jun 30, 2019
11:40 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 20 ENE Big Timber, MT
1.25″ hail
Jun 30, 2019
11:31 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 NNE Greycliff, MT
1.00″ hail
Jul 28, 2018
11:15 PM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 NW Reed Point, MT
1.00″ hail
Jul 3, 2018
12:44 AM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 16 W Absarokee, MT
1.00″ hail
Jun 29, 2018
12:59 AM UTC
Hail report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 10 W Rapelje, MT
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 Sweet Grass County

30 reports
Free hail report + wind check →
52 mph
Sep 7, 2026
7:35 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station DBYM8 Derby Mountain.
NWS Wind Report Location: 9 N Limestone, MT
51 mph
Aug 30, 2026
12:40 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station BTSM8 Big Timber Se.
NWS Wind Report Location: 3 Sw Greycliff, MT
50 mph
Aug 27, 2026
10:20 PM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station MLVM8 Melville.
NWS Wind Report Location: 7 N Sourdough, MT
52 mph
Aug 23, 2026
11:40 PM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station MLVM8 Melville.
NWS Wind Report Location: 7 N Sourdough, MT
55 mph
Aug 23, 2026
10:35 PM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: AWOS station K6S0 Big Timber.
NWS Wind Report Location: 2 Ssw Big Timber, MT
52 mph
Aug 18, 2026
10:35 PM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: AWOS station K6S0 Big Timber.
NWS Wind Report Location: 2 Ssw Big Timber, MT
43 mph
Jul 31, 2026
7:00 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station MLVM8 Melville.
NWS Wind Report Location: 7 N Sourdough, MT
51 mph
Jul 31, 2026
5:45 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station MTHLS Harlowton South Us-191 Mp 22.0.
NWS Wind Report Location: 3 Ne Melville, MT
50 mph
Jul 29, 2026
3:16 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station MTHLS Harlowton South Us-191 Mp 22.0.
NWS Wind Report Location: 3 Ne Melville, MT
58 mph
Jul 29, 2026
2:50 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 3 Sw Greycliff, MT
58 mph
Jul 29, 2026
2:45 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 7 N Sourdough, MT
53 mph
Jul 29, 2026
2:35 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station DBYM8 Derby Mountain.
NWS Wind Report Location: 9 N Limestone, MT
62 mph
Jul 26, 2026
12:30 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: CWOP GW0007.
NWS Wind Report Location: Big Timber, MT
61 mph
Jul 12, 2026
11:00 PM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station MTHLS Harlowton South Us-191 Mp 22.0.
NWS Wind Report Location: 3 NE Melville, MT
64 mph
Jul 9, 2026
1:45 AM UTC
Wind report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Wind Report Description: Mesonet station GW0007 Big Timber.
NWS Wind Report Location: Big Timber, MT
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 Sweet Grass County

2 reports
F0 category
May 20, 1973
3:00 PM CST
Tornado report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, MT
F1 category
Aug 22, 1965
1:00 PM CST
Tornado report for Sweet Grass County, MT
Sweet Grass County · 1,511 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, MT
Showing 2 of 2
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 Sweet Grass County on the Interactive Map

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Tornado

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Browse Cities with NWS Storm Reports in Sweet Grass County

Big Timber, MT 135
Hail, wind & tornado reports
Greycliff, MT 41
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Sweet Grass County, MT area census snapshot

People & households
Population3,713
Households1,497
Housing units1,929
Income
Median household income$69,426
$100k+ households40.0%
$150k+ households11.0%
Housing stock
Single-family detached1,511
Attached single-family35
Small multifamily171
Large multifamily8
Mobile homes204
Housing mix
Single-family share78.3%
Attached-home share1.8%
Multifamily share9.3%
Mobile-home share10.6%
Ownership & occupancy
Owner-occupied1,140
Renter-occupied357
Vacant units432
Home value & age
Median home value$295,500
Owner homes $300k+49.0%
Owner homes $500k+21.3%
Owner homes $750k+12.8%
Median year built1979
Older-home share51.8%
Vehicle context
Households with cars1,442
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 Sweet Grass County

59011 144
Big Timber, MT Hail, wind & tornado reports
59069 58
Reed Point, MT Hail, wind & tornado reports
59078 38
Shawmut, MT Hail, wind & tornado reports
59055 13
MT Hail, wind & tornado reports
59052 4
MT Hail, wind & tornado reports
59082 2
Springdale, MT Hail, wind & tornado reports

Get a Remote Hail Inspection

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

Our records show 128 hail, 61 wind, and 2 tornado reports in Sweet Grass County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 7, 2026.

What is the largest hail ever reported in Sweet Grass County?

The largest hail size in these storm-report records in Sweet Grass County is 2.50″. It was reported near Melville, MT on June 13, 2013.

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

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

I am selling a home in Sweet Grass 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 Sweet Grass County address?

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