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

Hail, Wind & Tornado Reports in Powell County, MT

Public hail, wind, and tornado reports across Powell County, MT from May 17, 1962 through September 6, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 59868 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
65
Wind Reports
32
Tornado Reports
2
Max Hail Size
2.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Powell County, MT · 1962–present Updated  Daily · last Sep 6, 2026

Latest NWS Hail Reports in Powell County

30 reports
Free hail report for your home →
0.88″ hail
Sep 6, 2026
11:30 PM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Deer Lodge, MT
1.75″ hail
Sep 6, 2026
11:20 PM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Avon, MT
1.00″ hail
May 22, 2023
6:10 PM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: LOTS OF PENNY SIZED HAIL WITH SOME QUARTER SIZED. BRIEF INTENSE WIND BUT NO DAMAGE NOTED.
NWS Hail Report Location: 5 WNW Helmville, MT
1.50″ hail
Jul 10, 2022
2:00 AM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: TIME ESTIMATED VIA RADAR.
NWS Hail Report Location: Helmville, MT
1.75″ hail
Jul 22, 2021
1:45 AM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: GOLF BALL SIZED HAIL REPORTED AT THE MONTURE CAMPGROUND. LASTED FOR ABOUT 5 MINUTES.
NWS Hail Report Location: 4 WNW Ovando, MT
1.00″ hail
Jul 22, 2021
12:07 AM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: HAILED FOR 20-30 MINUTES... MAX SIZE OF 1 INCH. GUSTY WINDS AROUND 40MPH... HEAVY RAIN.
NWS Hail Report Location: 6 NNW Woodworth, MT
1.50″ hail
Jul 14, 2019
10:04 PM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 SE Helmville, MT
1.25″ hail
Jul 14, 2019
4:31 AM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: DESCRIBED HALF DOLLAR HAIL... THAT DENTED TRUCK ROOF.
NWS Hail Report Location: Ovando, MT
1.25″ hail
Jul 27, 2018
11:45 PM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: THE PERSON DESCRIBED THE HAIL AS A LITTLE SMALLER THAN GOLF BALL SIZE.
NWS Hail Report Location: 2 WSW Deer Lodge, MT
1.00″ hail
May 6, 2017
9:49 PM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Garrison, MT
1.00″ hail
Jul 18, 2016
3:00 AM UTC
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: HAY GOT KNOCKED DOWN AND SOME SMALL DAMAGE TO VEHICLES. CAMPER SKYLIGHTS BROKEN.
NWS Hail Report Location: 2 SSE Finn, MT
1.00″ hail
Aug 15, 2014
11:30 AM MST-7
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: A person from the public west of Deer Lodge estimated that quarter size hail fell during this event. Also a trained spotter located 1 mile west of Deer Lodge measured pea size hail and reported that large amounts of it had fallen.
NWS Hail Report Location: 3 W Deer Lodge, MT
0.75″ hail
Aug 1, 2013
12:42 PM MST-7
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: A trained spotter north of Racetrack estimated penny sized hail.
NWS Hail Report Location: 3 NNW Racetrack, MT
1.50″ hail
Jul 17, 2013
3:16 PM MST-7
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: A very large right-moving supercell unleashed up to ping pong sized hail that decimated a four to five foot tall hay crop. The hail covered the ground to a depth of 2 inches in spots. At least 10 windows were broken. Paint was chipped off from homes. Other damage included a greenhouse roof, vehicle windows and vegetation.
NWS Hail Report Location: 6 NNE Avon, MT
1.25″ hail
Jul 17, 2013
3:10 PM MST-7
Hail report for Powell County, MT
Powell County · 2,252 Homes in County
Hail Report Description: A very large right-moving supercell brought hail and wind damage to ranchers north of Avon. A rancher reported up to half dollar sized hail that brought considerable damage to their hay crop, and windows.
NWS Hail Report Location: 5 N Avon, 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 Powell County

30 reports
Free hail report + wind check →
57 mph
Sep 2, 2026
8:07 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: Sustained winds of 45 mph.
NWS Wind Report Location: 5 Wnw Finn, MT
60 mph
Sep 2, 2026
8:00 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: Avon North MDT sensor also reported 48 mph sustained wind.
NWS Wind Report Location: 5 Sse Finn, MT
56 mph
Jul 31, 2026
2:15 AM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: Mesonet station MTGAR Garrison (MT DOT).
NWS Wind Report Location: Garrison, MT
63 mph
Sep 11, 2024
11:30 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: MacDonald Pass MDT sensor.
NWS Wind Report Location: 5 S Blossburg, MT
UNK mph
Jul 30, 2024
3:45 AM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: Missoula Electric Coop reports power line down across the Blackfoot River at Scotty Brown Bridge. Authorities closed the river to recreation. Time estimated via radar.
NWS Wind Report Location: 5 W Ovando, MT
UNK mph
Jul 30, 2024
3:40 AM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: Missoula Electric Coop reports damaged power lines in Ovando area. 181 customers still without power as of 1400 July 26.
NWS Wind Report Location: 3 SE Ovando, MT
UNK mph
Jul 30, 2024
3:35 AM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: Missoula Electric Coop reports damaged power lines in Woodworth. 300 plus customers still without power as of 1400 July 26.
NWS Wind Report Location: Woodworth, MT
65 mph
Jul 13, 2019
9:40 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: MACDONALD PASS DOT SENSOR.
NWS Wind Report Location: 5 S Blossburg, MT
67 mph
Jul 13, 2019
9:00 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: MESONET STATION DRLM DEER LODGE.
NWS Wind Report Location: 4 NNW Racetrack, MT
UNK mph
May 6, 2017
9:55 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: *** 1 FATAL *** THUNDERSTORM WINDS CAUSED SEVERAL LODGE-POLE PINE TREES TO FALL BY A CAMPSITE SOUTH OF ELLISTON. ONE TREE HIT A 41 YEAR OLD FEMALE... WHO HAD BEEN CAMPING IN THE AREA AND LATER DIED OF HER INJURIES. THE LSR TIME IS A ROUGH ESTIMATE BASED ON RADAR DATA.
NWS Wind Report Location: 7 S Elliston, MT
UNK mph
May 6, 2017
8:55 PM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: *** 1 FATAL *** THUNDERSTORM WINDS CAUSED SEVERAL LODGE-POLE PINE TREES TO FALL BY A CAMPSITE SOUTH OF ELLISTON. ONE TREE HIT A 41 YEAR OLD FEMALE... WHO HAD BEEN CAMPING IN THE AREA AND LATER DIED OF HER INJURIES. THE LSR TIME OF 3:55 PM MDT IS A ROUGH ESTIMATE BASED ON RADAR DATA.
NWS Wind Report Location: 7 S Elliston, MT
60 mph
Jun 9, 2016
3:45 AM UTC
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: SUSTAINED WINDS WERE 49 MPH. MT DOT SENSOR.
NWS Wind Report Location: 5 SSE Finn, MT
60 mph
Jul 17, 2013
3:12 PM MST-7
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: A very large supercell brought estimated 60 mph wind gusts that caused several trees to either uproot or break in half. Most of the trees fell in an easterly direction.
NWS Wind Report Location: 5 NNE Avon, MT
60 mph
Jul 17, 2013
3:10 PM MST-7
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: A very large right-moving supercell tracked east-northeast from Goldcreek to north of Avon bringing with it large hail, severe winds and heavy rain. A rancher 5 miles north of Avon reported a totaled barn, several trees that were either uprooted or broken in half. One of those trees uprooted was a 24 cottonwood.
NWS Wind Report Location: 5 N Avon, MT
60 mph
Jun 29, 2010
2:50 PM MST-7
Wind report for Powell County, MT
Powell County · 2,252 Homes in County
Wind Report Description: A trained spotter reported estimated wind gusts of 60 MPH. Smaller tree branches were down with the largest branch estimated at four inches in diameter.
NWS Wind Report Location: N Ovando, 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 Powell County

2 reports
F1 category
Jun 28, 1982
5:30 PM CST
Tornado report for Powell County, MT
Powell County · 2,252 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, MT
F0 category
May 17, 1962
6:00 PM CST
Tornado report for Powell County, MT
Powell County · 2,252 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 Powell County on the Interactive Map

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Browse Cities with NWS Storm Reports in Powell County

Deer Lodge, MT 34
Hail, wind & tornado reports
Ovando, MT 17
Hail, wind & tornado reports
Avon, MT 12
Hail, wind & tornado reports
Elliston, MT 8
Hail, wind & tornado reports
Garrison, MT 8
Hail, wind & tornado reports
Helmville, MT 7
Hail, wind & tornado reports
Goldcreek, MT 2
Hail, wind & tornado reports
Racetrack, MT 2
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Powell County, MT area census snapshot

People & households
Population7,029
Households2,348
Housing units2,969
Income
Median household income$63,432
$100k+ households34.2%
$150k+ households12.3%
Housing stock
Single-family detached2,252
Attached single-family17
Small multifamily129
Large multifamily93
Mobile homes447
Housing mix
Single-family share75.9%
Attached-home share0.6%
Multifamily share7.5%
Mobile-home share15.1%
Ownership & occupancy
Owner-occupied1,631
Renter-occupied717
Vacant units621
Home value & age
Median home value$255,700
Owner homes $300k+42.7%
Owner homes $500k+11.7%
Owner homes $750k+6.9%
Median year built1965
Older-home share71.4%
Vehicle context
Households with cars2,241
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 Powell County

59868 37
Seeley Lake, MT Hail, wind & tornado reports
59722 32
Anaconda-Deer Lodge County, MT Hail, wind & tornado reports
59854 16
Ovando, MT Hail, wind & tornado reports
59713 12
Avon, MT Hail, wind & tornado reports
59728 12
Elliston, MT Hail, wind & tornado reports
59731 9
Garrison, MT Hail, wind & tornado reports
59843 9
Helmville, MT Hail, wind & tornado reports
59733 2
Goldcreek, MT Hail, wind & tornado reports

Get a Remote Hail Inspection

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

Our records show 65 hail, 32 wind, and 2 tornado reports in Powell County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 6, 2026.

What is the largest hail ever reported in Powell County?

The largest hail size in these storm-report records in Powell County is 2.00″. It was reported near Ovando, MT on June 29, 1982.

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

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

I am selling a home in Powell 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 Powell County address?

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