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

Hail, Wind & Tornado Reports in and near Mason City, IA

Public hail, wind, and tornado reports in and near Mason City, IA from July 1, 1956 through July 2, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 50401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
56
Wind Reports
78
Tornado Reports
11
Max Hail Size
3.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Mason City, IA · 1956–present Updated  Daily · last Jul 2, 2026

Latest NWS Hail Reports in and near Mason City, IA

30 reports
Free hail report for your home →
1.00″ hail
Apr 14, 2026
3:16 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: dime to quarter sized hail at time of report.
NWS Hail Report Location: Mason City, IA
1.00″ hail
Oct 24, 2024
10:02 PM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: Just south of downtown.
NWS Hail Report Location: Mason City, IA
1.00″ hail
Mar 31, 2023
8:49 PM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Mason City, IA
1.00″ hail
Mar 31, 2023
8:44 PM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 S Mason City, IA
1.00″ hail
Apr 13, 2022
1:50 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 NNW Mason City, IA
1.00″ hail
Jul 11, 2020
9:02 PM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: TRAINED SPOTTER REPORTS 1 INCH HAIL ONE MILE NORTH OF MASON CITY... IA.
NWS Hail Report Location: 1 NNW Mason City, IA
1.00″ hail
Aug 25, 2018
12:10 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: TRAINED SPOTTER REPORTED NICKEL TO QUARTER SIZED HAIL.
NWS Hail Report Location: 1 NNW Mason City, IA
1.00″ hail
Jul 26, 2018
12:03 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: DELAYED REPORT VIA SOCIAL MEDIA.
NWS Hail Report Location: 1 S Mason City, IA
1.00″ hail
May 28, 2018
10:56 PM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: HAILING FOR 5 MINUTES. UP TO QUARTER SIZED HAIL DRIVEN BY THE WIND. HEAVY RAIN.
NWS Hail Report Location: 1 NNW Mason City, IA
1.25″ hail
Apr 10, 2017
3:30 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: DELAYED REPORT.
NWS Hail Report Location: 5 S Mason City, IA
1.00″ hail
Apr 10, 2017
2:55 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: TIME ESTIMATED. REPORT VIA SOCIAL MEDIA.
NWS Hail Report Location: Mason City, IA
1.00″ hail
Apr 10, 2017
2:45 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: SPOTTER REPORTED NICKEL TO QUARTER SIZED HAIL ONGOING IN MASON CITY AREA.
NWS Hail Report Location: Mason City, IA
1.00″ hail
May 31, 2016
12:10 AM UTC
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Mason City, IA
1.00″ hail
Oct 4, 2013
5:42 PM CST-6
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: Nickel to quarter size hail was reported by KIMT-TV.
NWS Hail Report Location: .22 N Mason City, IA
1.00″ hail
Oct 4, 2013
5:40 PM CST-6
Hail report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Mason City, IA
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 and near Mason City, IA

30 reports
Free hail report + wind check →
72 mph
Jul 2, 2026
5:25 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: PWS gust with a sustained 58mph.
NWS Wind Report Location: 6 SE Mason City, IA
69 mph
May 18, 2026
3:25 AM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 4 WNW Mason City, IA
UNK mph
Jul 28, 2025
4:30 AM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: Many branches down... with a few sized 3 inches or larger in diameter.
NWS Wind Report Location: 5 N Mason City, IA
UNK mph
Jul 28, 2025
4:19 AM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: Delayed report. Trees and branches down across town. Some trees on vehicles. Several power poles reported to be on fire with power outages in the county.
NWS Wind Report Location: 1 W Mason City, IA
UNK mph
May 21, 2024
9:52 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: Trees on multiple homes and power line.
NWS Wind Report Location: Mason City, IA
UNK mph
Apr 13, 2022
1:52 AM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: NOTED POWERLINES SNAPS AND TRANSMITTER LIGHT UPS... CALLER WAS TRAVELING TOWARDS OWEN ON HIGHWAY 18.
NWS Wind Report Location: 2 S Mason City, IA
UNK mph
Dec 16, 2021
12:48 AM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: MULTIPLE 3 INCH DIAMETER OR GREATER TREE BRANCHES DOWN. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 1 NNW Mason City, IA
UNK mph
Aug 27, 2021
10:08 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: EM REPORTS A FEW TREE LIMBS DOWN AROUND TOWN... SOME DAMAGE TO POWER LINES. TIME ESTIMATED VIA RADAR.
NWS Wind Report Location: 1 SW Mason City, IA
UNK mph
May 26, 2020
11:10 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: BARN ROOF DAMAGE IN VICINITY OF 200TH ST AND LARK AVENUE. REPORT VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 7 SW Mason City, IA
UNK mph
Jul 20, 2019
4:26 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: KIMT-TV VIEWER SHARES PHOTO OF LARGE TREE LIMB SNAPPED IN MASON CITY. DIAMETER APPEARS TO BE AT LEAST 8 INCHES.
NWS Wind Report Location: Mason City, IA
UNK mph
Aug 24, 2018
11:50 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: POWER LINE DOWN ON TREE WITH FIRE ALONG BIRCH DR. TIME ESTIMATED.
NWS Wind Report Location: Mason City, IA
UNK mph
Jul 26, 2018
12:00 AM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: DELAYED REPORT - TIME ESTIMATED BY RADAR - SEVERAL LARGE BRANCHES AND ONE LARGER TREE DOWN...VIA SOCIAL MEDIA.
NWS Wind Report Location: Mason City, IA
UNK mph
Jun 2, 2018
1:50 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: LARGE TREE DAMAGE.
NWS Wind Report Location: 1 NNE Mason City, IA
UNK mph
Jun 2, 2018
1:19 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: SEVERAL REPORTS OF LARGE BRANCHES DOWN ON MANY TREES ON THE EAST SIDE OF TOWN. REPORT RECEIVED VIA SOCIAL MEDIA.
NWS Wind Report Location: Mason City, IA
UNK mph
May 28, 2018
10:47 PM UTC
Wind report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Wind Report Description: NUMEROUS 3-4 INCH DIAMETER TREE BRANCHES DOWN THROUGHOUT MASON CITY. A FEW LARGER TREES DOWN AS WELL. HAIL OF UNKNOWN SIZE. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: Mason City, IA
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 and near Mason City, IA

11 reports
UNK category
May 18, 2026
3:27 AM UTC
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Local fire reports tornado on ground.
NWS Tornado Report Location: 3 S Mason City, IA
UNK category
May 18, 2026
3:24 AM UTC
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Local fire reports tornado on ground. Time estimated via radar.
NWS Tornado Report Location: 3 S Mason City, IA
UNK category
May 18, 2026
3:21 AM UTC
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Fire reported tornado on ground. Time estimated via radar.
NWS Tornado Report Location: 3 S Mason City, IA
F0 category
Mar 30, 2005
1:42 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Brief tornado touchdown in open area southeast of Mason City. Reports indicate there were two quick and brief touchdowns in that area. Track was somewhat intermittent.
NWS Tornado Report Location: 5 SE Mason City, IA
F0 category
Mar 30, 2005
1:42 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Tornado touched down in open area east of Mason City. Reported by three spotters.
NWS Tornado Report Location: 1 E Mason City, IA
F0 category
Mar 30, 2005
1:39 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Tornado touched down near U.S. Highway 18 and tracked north-northeast across open county. No damage occurred as it only lifted dirt into the air.
NWS Tornado Report Location: 5 SE Mason City, IA
F0 category
Apr 17, 2004
8:40 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Brief touchdown in open area east of Mason City.
NWS Tornado Report Location: 3 E Mason City, IA
F0 category
Jul 4, 2003
1:08 AM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: Brief tornado touchdown in field just east of Mason City.
NWS Tornado Report Location: Mason City, IA
F0 category
Jun 6, 1999
3:46 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 3 S Mason City, IA
F2 category
May 29, 1980
4:30 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F1 category
Feb 23, 1977
2:10 PM CST
Tornado report for Mason City, IA
Cerro Gordo County · 17,096 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
Showing 11 of 11
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 Mason City, IA on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Mason City

50401 164
Mason City, IA Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Mason City, IA area census snapshot

People & households
Population27,135
Households12,678
Housing units14,117
Income
Median household income$62,369
$100k+ households34.6%
$150k+ households9.8%
Housing stock
Single-family detached10,764
Attached single-family494
Small multifamily1,258
Large multifamily1,355
Mobile homes246
Housing mix
Single-family share76.3%
Attached-home share3.5%
Multifamily share18.5%
Mobile-home share1.7%
Ownership & occupancy
Owner-occupied8,574
Renter-occupied4,104
Vacant units1,439
Home value & age
Median home value$130,000
Owner homes $300k+12.9%
Owner homes $500k+2.1%
Owner homes $750k+0.4%
Median year built1955
Older-home share79.1%
Vehicle context
Households with cars11,912
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 Mason City have on record?

Our records show 56 hail, 78 wind, and 11 tornado reports in and near Mason City, IA, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on July 2, 2026.

What is the largest hail ever reported in Mason City?

The largest hail size in these storm-report records in and near Mason City, IA is 3.00″. It was reported near Mason City, IA on June 18, 1974.

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

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

I am selling a home in Mason City — 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 Mason City address?

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