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

Hail, Wind & Tornado Reports in and near Johnston, IA

Public hail, wind, and tornado reports in and near Johnston, IA from March 30, 1958 through April 15, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 50131 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
51
Wind Reports
56
Tornado Reports
3
Max Hail Size
3.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Johnston, IA · 1958–present Updated  Daily · last Apr 15, 2026

Latest NWS Hail Reports in and near Johnston, IA

30 reports
Free hail report for your home →
1.00″ hail
Apr 15, 2026
9:15 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: Trained spotter sent a picture of a hail stone 1 inch in diameter.
NWS Hail Report Location: 2 WSW Johnston, IA
1.00″ hail
Sep 18, 2022
1:05 AM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Johnston, IA
2.75″ hail
Jul 9, 2021
7:03 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: COURTESY WHOTV.
NWS Hail Report Location: Johnston, IA
1.50″ hail
Jul 9, 2021
7:01 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: REPORT FROM MPING: PING PONG BALL (1.50 IN.).
NWS Hail Report Location: 1 NE Johnston, IA
1.75″ hail
Jul 9, 2021
7:00 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Johnston, IA
1.75″ hail
Jul 9, 2021
6:59 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 W Johnston, IA
1.00″ hail
Jul 9, 2021
6:58 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: REPORT FROM MPING: QUARTER (1.00 IN.).
NWS Hail Report Location: 1 NE Johnston, IA
1.75″ hail
Jul 9, 2021
6:56 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: REPORT FROM MPING: GOLF BALL (1.75 IN.).
NWS Hail Report Location: 2 NE Johnston, IA
1.50″ hail
Jun 22, 2021
10:48 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: REPORT FROM MPING: PING PONG BALL (1.50 IN.).
NWS Hail Report Location: 2 E Johnston, IA
1.00″ hail
Jun 22, 2021
10:38 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: REPORT VIA SOCIAL MEDIA.
NWS Hail Report Location: 1 SSW Johnston, IA
1.00″ hail
Jun 22, 2021
10:35 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: REPORT FROM MPING: QUARTER (1.00 IN.).
NWS Hail Report Location: 2 W Johnston, IA
1.00″ hail
Jun 22, 2021
10:30 PM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Johnston, IA
1.00″ hail
Sep 2, 2018
12:11 AM UTC
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 WNW Johnston, IA
1.00″ hail
May 8, 2014
6:11 PM CST-6
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: Reported at the I-80 and Merle Hay Road exchange.
NWS Hail Report Location: .19 NE Lovington, IA
0.75″ hail
May 20, 2013
6:00 PM CST-6
Hail report for Johnston, IA
Polk County · 134,175 Homes in County
Hail Report Description: At the NWS office in Johnston.
NWS Hail Report Location: 1.76 NE Herrold, 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 Johnston, IA

30 reports
Free hail report + wind check →
58 mph
May 24, 2024
10:04 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Personal weather station.
NWS Wind Report Location: Johnston, IA
UNK mph
May 24, 2024
9:55 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Delayed report. Social media picture of large tree branches down in Johnston. Time estimated by radar.
NWS Wind Report Location: Johnston, IA
UNK mph
May 21, 2024
10:09 PM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Uprooted trees seen around Beaver Dr.
NWS Wind Report Location: Johnston, IA
UNK mph
May 21, 2024
10:07 PM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Pine tree down (estimated 6-8 inches) other tree damage as well.
NWS Wind Report Location: 1 ESE Johnston, IA
UNK mph
May 21, 2024
10:04 PM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Report from mPING Trees uprooted or snapped... Roof blown off.
NWS Wind Report Location: 1 E Johnston, IA
UNK mph
May 21, 2024
9:33 PM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Construction trailer flipped near the intersection of Peckham and 70th st. Time estimated with radar.
NWS Wind Report Location: 1 NNW Johnston, IA
UNK mph
May 21, 2024
9:32 PM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: Windows blown out at Johnston High School. Time estimated with radar.
NWS Wind Report Location: 1 WNW Johnston, IA
75 mph
Dec 16, 2021
12:27 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1 WNW Johnston, IA
UNK mph
Dec 16, 2021
12:23 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: SIDING... SHINGLE... AND MINOR TREE DAMAGE TO TOWNHOMES. REPORT VIA BROADCAST MEDIA. TIME ESTIMATED VIA RADAR.
NWS Wind Report Location: 2 ESE Johnston, IA
65 mph
Dec 16, 2021
12:07 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1 WNW Johnston, IA
UNK mph
Aug 10, 2020
4:10 PM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: NW JOHNSTON TREE UPROOTED. TIME ESTIMATED.
NWS Wind Report Location: 1 W Johnston, IA
UNK mph
Jul 15, 2020
1:15 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: ALL THE CORN NEAR BEAVER DRIVE AND HWY 415 HAS BEEN FLATTENED IN THE SAME DIRECTION.
NWS Wind Report Location: Johnston, IA
UNK mph
Jul 15, 2020
1:00 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: DAMAGE TO SEVERAL LARGE TREES.
NWS Wind Report Location: 2 NE Johnston, IA
UNK mph
Jul 15, 2020
12:45 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: SEVERAL REPORTS OF TREES BLOWN DOWN IN THE CAMP DODGE AREA ALONG 70TH.
NWS Wind Report Location: Johnston, IA
60 mph
Jun 5, 2020
9:50 AM UTC
Wind report for Johnston, IA
Polk County · 134,175 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1 WNW Johnston, 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 Johnston, IA

3 reports
UNK category
May 24, 2024
9:55 AM UTC
Tornado report for Johnston, IA
Polk County · 134,175 Homes in County
Tornado Report Description: NWS damage survey identified damage consistent with an EF0 tornado that tracked from southern into eastern portions of Johnston from 453 AM to 457 AM.
NWS Tornado Report Location: 1 E Johnston, IA
UNK category
May 25, 2020
11:26 PM UTC
Tornado report for Johnston, IA
Polk County · 134,175 Homes in County
Tornado Report Description: TORNADO BEGAN NEAR TERRA PARK AND ENDED NEAR DEWEY PARK IN JOHNSTON... IOWA. ESTIMATED PEAK WIND OF 95 MPH WITH DAMAGE TO MULTIPLE LARGE TREES AND POWER LINES. NO DAMAGE TO ANY BUILDINGS. MAXIMUM PATH WIDTH OF 50 YARDS WITH A PATH LENGTH OF 1.6 MILES.
NWS Tornado Report Location: 2 ESE Johnston, IA
UNK category
Mar 30, 1958
3:00 PM CST
Tornado report for Johnston, IA
Polk County · 134,175 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
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 Johnston, IA on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Johnston

50131 118
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NWS Storm Reports & Census Data

U.S. Census Data · City

Johnston, IA area census snapshot

People & households
Population24,196
Households9,552
Housing units9,868
Income
Median household income$103,430
$100k+ households41.5%
$150k+ households22.2%
Housing stock
Single-family detached5,795
Attached single-family1,478
Small multifamily636
Large multifamily1,959
Mobile homes0
Housing mix
Single-family share58.7%
Attached-home share15.0%
Multifamily share26.3%
Mobile-home share--
Ownership & occupancy
Owner-occupied6,905
Renter-occupied2,647
Vacant units316
Home value & age
Median home value$346,200
Owner homes $300k+62.3%
Owner homes $500k+18.6%
Owner homes $750k+6.7%
Median year built2004
Older-home share8.0%
Vehicle context
Households with cars9,237
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 Johnston have on record?

Our records show 51 hail, 56 wind, and 3 tornado reports in and near Johnston, IA, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on April 15, 2026.

What is the largest hail ever reported in Johnston?

The largest hail size in these storm-report records in and near Johnston, IA is 3.00″. It was reported near .86 NE Johnston, IA on July 14, 2009.

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

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

I am selling a home in Johnston — 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 Johnston address?

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