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

Hail, Wind & Tornado Reports in Flathead County, MT

Public hail, wind, and tornado reports across Flathead County, MT from June 22, 1955 through August 23, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 59901 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
126
Wind Reports
90
Tornado Reports
5
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Flathead County, MT · 1955–present Updated  Daily · last Aug 23, 2026

Latest NWS Hail Reports in Flathead County

30 reports
Free hail report for your home →
1.00″ hail
Jul 18, 2026
3:25 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: Lots of quarters_ lasted about 3 minutes.
NWS Hail Report Location: 3 Sse Lupfer, MT
1.00″ hail
May 29, 2026
12:30 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 W Kalispell, MT
1.00″ hail
May 29, 2026
12:25 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 N Evergreen, MT
1.00″ hail
May 13, 2025
7:00 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: Bob leaves a message on our spotter line every day with the temperatures and precipitation from the previous day.
NWS Hail Report Location: 2 WSW Columbia Falls, MT
1.00″ hail
Aug 20, 2024
1:43 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 W Columbia Falls, MT
1.50″ hail
Jul 10, 2022
3:40 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: SOCIAL MEDIA PHOTO.
NWS Hail Report Location: 1 WNW Evergreen, MT
2.00″ hail
Jul 10, 2022
3:16 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: FACEBOOK HAIL PHOTO. COULD HAVE BEEN AS BIG AS A TENNIS BALL OR 2.50 INCHES.
NWS Hail Report Location: 1 SE Kalispell, MT
1.75″ hail
Jul 10, 2022
2:15 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: SOCIAL MEDIA PHOTO. TIME ESTIMATED BY RADAR AND SOCIAL MEDIA POST. MRMS HAD 1.10 INCH MAX HAIL ESTIMATE. SIZE IS ESTIMATED. ONE HAILSTONE COULD HAVE BEEN AS BIG AS A HEN EGG.
NWS Hail Report Location: Somers, MT
1.50″ hail
Jul 9, 2022
11:30 PM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: PHOTO RETRIEVED VIA SOCIAL MEDIA. TIME ESTIMATED VIA RADAR.
NWS Hail Report Location: 2 WNW Bigfork, MT
1.00″ hail
Jul 9, 2022
11:26 PM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Bigfork, MT
1.50″ hail
Jul 9, 2022
11:24 PM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Bigfork, MT
1.50″ hail
Jul 9, 2022
11:15 PM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: PHOTO RETRIEVED VIA SOCIAL MEDIA. TIME ESTIMATED VIA RADAR.
NWS Hail Report Location: 2 SSE Lakeside, MT
2.00″ hail
Jul 9, 2022
11:06 PM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: POSSIBLE TOTAL LOSS AT CHERRY ORCHARD. TIME ESTIMATED BY RADAR.
NWS Hail Report Location: 3 SE Lakeside, MT
1.25″ hail
Jul 8, 2022
3:48 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: FACEBOOK REPORT. HAIL RANGED FROM PEA SIZED UP TO 1.25 INCH IN DIAMETER. ALSO REPORTED A LIGHTNING STRIKE TO THEIR BARN.
NWS Hail Report Location: 2 ESE Columbia Falls, MT
1.00″ hail
Jul 8, 2022
3:45 AM UTC
Hail report for Flathead County, MT
Flathead County · 37,000 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Columbia Falls, 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 Flathead County

30 reports
Free hail report + wind check →
69 mph
Aug 23, 2026
1:09 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Mesonet station CYFM8 Hornet Mountain.
NWS Wind Report Location: 6 Wsw Trailcreek, MT
44 mph
Aug 23, 2026
1:00 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Mesonet station BIGMS 6.3 N Whitefish (GNP).
NWS Wind Report Location: 6 N Whitefish, MT
54 mph
Aug 23, 2026
12:00 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: ASOS station KGPI Kalispell.
NWS Wind Report Location: La Salle, MT
50 mph
Aug 23, 2026
12:00 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Mesonet station LKMMT Link Mountain.
NWS Wind Report Location: 11 Ne Stryker, MT
UNK mph
Aug 24, 2024
12:40 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Widespread power outages in Bigfork area from damaged transmission lines.
NWS Wind Report Location: Bigfork, MT
UNK mph
Aug 24, 2024
12:15 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Flathead Electric Coop reports damaged transmission lines on Big Mountain with thousands of customers without power.
NWS Wind Report Location: 3 N Whitefish, MT
UNK mph
Aug 23, 2024
11:55 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Downed tree damaged home roof on Lake Blaine Road.
NWS Wind Report Location: 3 NNE Creston, MT
UNK mph
Aug 23, 2024
11:50 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Flathead Electric Coop reports damaged transmission lines in Many Lakes Area with thousands of customers without power.
NWS Wind Report Location: 4 NNE Bigfork, MT
UNK mph
Aug 23, 2024
11:40 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Corrects previous tstm wnd dmg report from Bigfork. Widespread power outages in Bigfork area from damaged transmission lines.
NWS Wind Report Location: Bigfork, MT
UNK mph
Aug 30, 2023
2:30 AM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Tree down across road and through power lines at Middle and Austin. Power outage reported until midnight.
NWS Wind Report Location: 5 SE La Salle, MT
68 mph
Aug 22, 2023
10:55 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: ASOS station KGPI Kalispell.
NWS Wind Report Location: La Salle, MT
UNK mph
Aug 22, 2023
10:55 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Dispatch reports trees down on the east side of Lake McDonald. Time estimated via radar.
NWS Wind Report Location: 4 SSW Lake Mcdonald, MT
UNK mph
Aug 22, 2023
10:50 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Dispatch reports numerous trees down in Apgar Village.
NWS Wind Report Location: Apgar, MT
UNK mph
Aug 22, 2023
10:41 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Flathead Electric COOP reports 167 customers without power from wind damage in West Glacier.
NWS Wind Report Location: West Glacier, MT
UNK mph
Aug 22, 2023
10:30 PM UTC
Wind report for Flathead County, MT
Flathead County · 37,000 Homes in County
Wind Report Description: Flathead Electric COOP reports 168 customers without power along North Fork Road associated with wind damage. Time estimated via radar.
NWS Wind Report Location: 5 NW Coram, 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 Flathead County

5 reports
UNK category
May 18, 2017
9:55 PM UTC
Tornado report for Flathead County, MT
Flathead County · 37,000 Homes in County
Tornado Report Description: VERY WEAK LAND SPOUT. PHOTOS WERE TAKEN OF THE LAND SPOUT... BUT NO DAMAGE OCCURRED.
NWS Tornado Report Location: 1 N Evergreen, MT
EF0 category
Nov 4, 2013
7:42 AM MST-7
Tornado report for Flathead County, MT
Flathead County · 37,000 Homes in County
Tornado Report Description: A cold core upper level trough dropped out of British Columbia providing the necessary lift and instability to trigger showers across western Montana early on November 4th. The unstable atmosphere saw a 24 degree difference between Flathead Lake water temperatures(8.9 deg. C) and at 9,665 ft. MSL(700 millibars) -15 deg. C. A convergent boundary set up southwest of Wood's Bay with cool northerly winds coming out of the Flathead Valley and relatively mild southerly winds moving across the lake. This boundary provided the vertical lift to develop the band of graupel and snow showers. A waterspout was spotted by passers-by traveling on MT-83 near mile-marker 24. Viewing the photos and video that Mike and Dana Marchetti took, it appears that there could have been multiple vortices based on darkened shadows in the vicinity of the main vortex. The waterspout remained over Flathead Lake and no damage was reported.
NWS Tornado Report Location: 6.84 S Bigfork, MT
EF0 category
Apr 9, 2008
4:45 PM MST-7
Tornado report for Flathead County, MT
Flathead County · 37,000 Homes in County
Tornado Report Description: Public reported sighting of land spout to news media at around 600 PM MDT. Pictures were taken by three different residents in the area confirming location of land spout touch down between 3 Mile Drive and 4 Mile Drive near Kalispell. A possible secondary funnel occurred farther to the northwest. The Land Spout started from a cumulus cloud around 545 PM, touched down at 550 PM and then dissipated shortly after 600 PM MDT. No damage was reported.
NWS Tornado Report Location: 1.7 NW Kalispell, MT
EF0 category
Jul 18, 2007
7:40 PM MST-7
Tornado report for Flathead County, MT
Flathead County · 37,000 Homes in County
Tornado Report Description: The public reported a waterspout on Flathead lake along the Flathead/Lake County line. A sailboat at this location was spun around at least once in a counterclockwise direction and then sank.
NWS Tornado Report Location: 8 SSW Bigfork, MT
F0 category
Sep 10, 2000
2:10 PM MST
Tornado report for Flathead County, MT
Flathead County · 37,000 Homes in County
Tornado Report Description: Whitefish attorney followed and photographed a tornado that formed near Big Mountain, traveled near Whitefish Lake and then dissipated over Iron Horse brewery. No damage reported.
NWS Tornado Report Location: Whitefish, MT
Showing 5 of 5
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 Flathead County on the Interactive Map

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Wind
Tornado

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Browse Cities with NWS Storm Reports in Flathead County

Kalispell, MT 46
Hail, wind & tornado reports
Bigfork, MT 28
Hail, wind & tornado reports
Evergreen, MT 21
Hail, wind & tornado reports
Whitefish, MT 18
Hail, wind & tornado reports
Columbia Falls, MT 17
Hail, wind & tornado reports
Helena Flats, MT 17
Hail, wind & tornado reports
West Glacier, MT 13
Hail, wind & tornado reports
Lakeside, MT 10
Hail, wind & tornado reports
Polebridge, MT 7
Hail, wind & tornado reports
Olney, MT 6
Hail, wind & tornado reports
Kila, MT 5
Hail, wind & tornado reports
Marion, MT 5
Hail, wind & tornado reports
Somers, MT 5
Hail, wind & tornado reports
Coram, MT 2
Hail, wind & tornado reports
Hungry Horse, MT 2
Hail, wind & tornado reports
Martin City, MT 2
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Flathead County, MT area census snapshot

People & households
Population108,445
Households43,568
Housing units50,948
Income
Median household income$71,327
$100k+ households38.0%
$150k+ households14.2%
Housing stock
Single-family detached37,000
Attached single-family2,545
Small multifamily4,141
Large multifamily2,741
Mobile homes4,437
Housing mix
Single-family share72.6%
Attached-home share5%
Multifamily share13.5%
Mobile-home share8.7%
Ownership & occupancy
Owner-occupied32,259
Renter-occupied11,309
Vacant units7,380
Home value & age
Median home value$467,700
Owner homes $300k+74.8%
Owner homes $500k+45.5%
Owner homes $750k+21.5%
Median year built1989
Older-home share37.1%
Vehicle context
Households with cars41,917
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 Flathead County

59901 75
Kalispell, MT Hail, wind & tornado reports
59911 43
Bigfork, MT Hail, wind & tornado reports
59912 32
Columbia Falls, MT Hail, wind & tornado reports
59937 22
Whitefish, MT Hail, wind & tornado reports
59936 16
West Glacier, MT Hail, wind & tornado reports
59922 11
Lakeside, MT Hail, wind & tornado reports
59845 7
Niarada, MT Hail, wind & tornado reports
59928 7
Polebridge, MT Hail, wind & tornado reports
59925 5
Marion, MT Hail, wind & tornado reports
59927 4
Olney, MT Hail, wind & tornado reports
59932 3
Somers, MT Hail, wind & tornado reports
59916 2
Snowslip, MT Hail, wind & tornado reports
59926 2
Martin City, MT Hail, wind & tornado reports
59913 1
Coram, MT Hail, wind & tornado reports
59919 1
Hungry Horse, MT Hail, wind & tornado reports
59920 1
Kila, MT Hail, wind & tornado reports

Get a Remote Hail Inspection

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

Our records show 126 hail, 90 wind, and 5 tornado reports in Flathead County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 23, 2026.

What is the largest hail ever reported in Flathead County?

The largest hail size in these storm-report records in Flathead County is 2.75″. It was reported near Polebridge, MT on July 2, 1996.

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

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

I am selling a home in Flathead 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 Flathead County address?

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