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

Hail, Wind & Tornado Reports in and near ZIP 59471

Public hail, wind, and tornado reports in and near ZIP 59471 from June 10, 1962 through September 7, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 59471 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
26
Wind Reports
39
Tornado Reports
3
Max Hail Size
3.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  ZIP 59471 · 1962–present Updated  Daily · last Sep 7, 2026

Latest NWS Hail Reports in and near ZIP 59471

26 reports
Free hail report for your home →
1.00″ hail
Sep 7, 2026
4:30 AM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: DELAYED REPORT: Between 10:30 PM and 11:00 PM on September 6_ a trained spotter estimated quarter sized (1.00 inch) hail.
NWS Hail Report Location: 1 N Roy, MT
1.25″ hail
Aug 11, 2016
2:40 AM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: LARGEST HAIL WAS QUARTER TO HALF DOLLAR-SIZE.
NWS Hail Report Location: 18 NE Roy, MT
2.50″ hail
Jun 12, 2016
2:08 AM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: DELAYED REPORT. TIME ESTIMATED BY RADAR.
NWS Hail Report Location: 1 NE Roy, MT
1.75″ hail
Jun 11, 2016
2:01 AM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 E Roy, MT
2.00″ hail
Jun 11, 2016
1:21 AM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 15 NE Roy, MT
1.75″ hail
Jun 11, 2016
1:10 AM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 10 NE Roy, MT
1.50″ hail
Jun 9, 2016
9:14 PM UTC
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 10 N Grass Range, MT
1.00″ hail
Jul 7, 2011
8:38 AM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A thunderstorm dropped 1 inch diameter hail at Roy 17E.
NWS Hail Report Location: 17 E Roy, MT
1.75″ hail
Jul 7, 2011
8:38 AM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A thunderstorm dropped 1.75 inch diameter hail at Roy 22E. The hail broke the windshield of a truck.
NWS Hail Report Location: 22 E Roy, MT
1.75″ hail
Jun 17, 2008
9:15 PM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A severe thunderstorm dropped 1.75 inch diameter hail at Roy 7NNE.
NWS Hail Report Location: 7 NNE Roy, MT
1.00″ hail
Jul 1, 2007
3:00 PM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A severe thunderstorm dropped 1 inch diameter hail at Valentine.
NWS Hail Report Location: N Valentine, MT
0.75″ hail
Jul 1, 2007
2:08 PM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A severe thunderstorm dropped .75 inch diameter hail at Roy 8NE.
NWS Hail Report Location: 8 NE Roy, MT
2.75″ hail
Jun 24, 2007
7:07 PM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A severe thunderstorm dropped 2.75 inch diameter hail at Roy 1NE. The hail damaged numerous vehicles.
NWS Hail Report Location: 1 NE Roy, MT
1.75″ hail
Jun 24, 2007
6:50 PM MST-7
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: A severe thunderstorm dropped 1.75 inch diameter hail at Roy.
NWS Hail Report Location: N Roy, MT
1.00″ hail
Jun 24, 2005
10:50 PM MST
Hail report for ZIP 59471
Fergus County · 4,512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 W Roy, MT
Showing 15 of 26
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 and near ZIP 59471

39 reports
Free hail report + wind check →
70 mph
May 30, 2026
12:30 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 13 ENE Roy, MT
73 mph
Aug 21, 2025
1:20 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: Montana mesonet station Roy E. Sustained winds of 44 mph at time of report.
NWS Wind Report Location: 13 ENE Roy, MT
59 mph
Aug 18, 2025
12:25 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: 59 mph thunderstorm wind gust at Roy E hydromet.
NWS Wind Report Location: 13 ENE Roy, MT
62 mph
Aug 7, 2025
9:31 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: AWOS station K1OM Oscar.
NWS Wind Report Location: 1 E Roy, MT
70 mph
Jul 6, 2025
1:41 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: Mesonet station ARMM8 Armells Creek RAWS.
NWS Wind Report Location: 18 NNE Roy, MT
61 mph
May 11, 2025
1:30 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: MT DOT sensor Bohemian Corner (MTBOH).
NWS Wind Report Location: 7 E Roy, MT
68 mph
May 11, 2025
1:15 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: AWOS station K1OM Oscar.
NWS Wind Report Location: 1 E Roy, MT
73 mph
Aug 4, 2022
10:06 PM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: CORRECTS PREVIOUS TSTM WND GST REPORT FROM 18 NNE ROY. TIME ESTIMATED FROM RADAR. TEMPERATURE ALSO FELL FROM 101 DEGREES F TO 74 DEGREES F BETWEEN 341 PM AND 441 PM.
NWS Wind Report Location: 18 NNE Roy, MT
64 mph
Jun 19, 2022
1:15 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: MESONET STATION MTM42 BLM ROY.
NWS Wind Report Location: 11 N Roy, MT
62 mph
Aug 21, 2020
1:00 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: AWOS STATION K1OM OSCAR.
NWS Wind Report Location: 1 E Roy, MT
75 mph
Jul 7, 2020
9:34 PM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: AWOS STATION K1OM OSCAR.
NWS Wind Report Location: 1 E Roy, MT
116 mph
Jul 9, 2016
2:08 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: DAMAGE TO AREA BUILDINGS. WIND SENSOR DAMAGED AND QUIT REPORTING AFTER THIS GUST.
NWS Wind Report Location: 1 E Roy, MT
62 mph
Jun 21, 2016
1:58 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: DELAYED REPORT FROM JUNE 10. SUSTAINED 49 MPH WIND...GUST TO 62 MPH
NWS Wind Report Location: 2 E Roy, MT
64 mph
Jun 21, 2016
12:56 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: DELAYED REPORT FROM JUNE 10. SUSTAINED 47 MPH WIND...GUST TO 64 MPH
NWS Wind Report Location: 2 E Roy, MT
70 mph
Jun 11, 2016
2:05 AM UTC
Wind report for ZIP 59471
Fergus County · 4,512 Homes in County
Wind Report Description: WIND GUST ESTIMATED. 2.25 INCH HAIL FELL AT LOCATION AS WELL
NWS Wind Report Location: 1 WNW Roy, MT
Showing 15 of 39
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 and near ZIP 59471

3 reports
F0 category
Apr 25, 2003
2:10 PM MST
Tornado report for ZIP 59471
Fergus County · 4,512 Homes in County
Tornado Report Description: A strong thunderstorm moving through Fergus County during the mid afternoon hours on the 25th, produced a tornado 15 miles North of Roy. The tornado began at 1410 MST and was on the ground for 7 minutes. No damage was reported with this tornado.
NWS Tornado Report Location: Roy, MT
F0 category
Jun 8, 1988
5:00 PM MST
Tornado report for ZIP 59471
Fergus County · 4,512 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, MT
F2 category
May 28, 1981
3:00 PM CST
Tornado report for ZIP 59471
Fergus County · 4,512 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, MT
Showing 3 of 3
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 and near ZIP 59471 on the Interactive Map

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NWS Storm Reports & Census Data

U.S. Census Data · ZIP Code

ZIP 59471 area census snapshot

People & households
Population316
Households137
Housing units199
Income
Median household income$64,688
$100k+ households35.8%
$150k+ households6.6%
Housing stock
Single-family detached157
Attached single-family0
Small multifamily0
Large multifamily0
Mobile homes42
Housing mix
Single-family share78.9%
Attached-home share--
Multifamily share--
Mobile-home share21.1%
Ownership & occupancy
Owner-occupied84
Renter-occupied53
Vacant units62
Home value & age
Median home value$150,000
Owner homes $300k+26.2%
Owner homes $500k+14.3%
Owner homes $750k+6.0%
Median year built1974
Older-home share58.8%
Vehicle context
Households with cars137
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.

Frequently asked questions

for homeowners, buyers & sellers
How many hail, wind, and tornado reports does ZIP 59471 have on record?

Our records show 26 hail, 39 wind, and 3 tornado reports in and near ZIP 59471, 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 ZIP 59471?

The largest hail size in these storm-report records in and near ZIP 59471 is 3.00″. It was reported near Roy, MT on July 23, 1992.

A storm report showed up near my home in ZIP 59471 — 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 ZIP 59471 and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in ZIP 59471 — 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 ZIP 59471 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in ZIP 59471 — 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 ZIP 59471 address?

Use the address search to pull a free address-level hail report for any property in ZIP 59471 — 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 in and around ZIP 59471, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 59471, 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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