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

Hail, Wind & Tornado Reports in Black Hawk County, IA

Public hail, wind, and tornado reports across Black Hawk County, IA from July 7, 1956 through August 7, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 55401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
256
Wind Reports
279
Tornado Reports
40
Max Hail Size
4.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Black Hawk County, IA · 1956–present Updated  Daily · last Aug 7, 2026

Latest NWS Hail Reports in Black Hawk County

30 reports
Free hail report for your home →
1.25″ hail
Aug 7, 2026
9:02 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Report via mPING.
NWS Hail Report Location: 5 N Dunkerton, IA
1.25″ hail
Aug 7, 2026
8:58 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Report from mPING: Half Dollar (1.25 in.).
NWS Hail Report Location: 5 Se Readlyn, IA
1.00″ hail
Apr 15, 2026
9:28 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Nickel to quarter sized hail in La Porte City.
NWS Hail Report Location: La Porte City, IA
1.00″ hail
Apr 15, 2026
9:15 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Report from mPING: Quarter (1.00 in.).
NWS Hail Report Location: 1 W La Porte City, IA
1.00″ hail
Apr 14, 2026
11:18 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 SSE Hudson, IA
1.75″ hail
Apr 14, 2026
9:35 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 N Raymond, IA
2.00″ hail
Apr 14, 2026
9:34 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 SSE Cedar Falls, IA
2.00″ hail
Apr 14, 2026
9:29 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 SW Waterloo, IA
2.50″ hail
Apr 14, 2026
9:24 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Estimated in comparison to tennis ball. Time estimated from radar.
NWS Hail Report Location: 1 ENE Waterloo, IA
1.75″ hail
Apr 14, 2026
9:21 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 ENE Waterloo, IA
1.50″ hail
Apr 14, 2026
9:20 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Delayed report - time estimated from radar.
NWS Hail Report Location: 3 W Waterloo, IA
1.00″ hail
Apr 14, 2026
9:15 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 WSW Cedar Falls, IA
1.00″ hail
Apr 14, 2026
9:12 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 W Cedar Falls, IA
1.00″ hail
Sep 17, 2025
10:00 AM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Delayed report relayed by social media. Time estimated from radar.
NWS Hail Report Location: 6 E Voorhies, IA
1.25″ hail
Sep 16, 2025
9:00 PM UTC
Hail report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Hail Report Description: Delayed report via social media.
NWS Hail Report Location: 2 SE Waterloo, 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 Black Hawk County

30 reports
Free hail report + wind check →
UNK mph
Aug 7, 2026
9:33 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Medium size tree down via social media. Time estimate via radar.
NWS Wind Report Location: 3 Ne Hudson, IA
66 mph
Jul 26, 2026
10:18 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Waterloo Regional Airpo, IA
66 mph
Jul 26, 2026
10:15 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Corrects previous report from Waterloo Regional Airport (ALO) for time.
NWS Wind Report Location: Waterloo Regional Airpo, IA
60 mph
Jul 20, 2026
9:39 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: PWS gust.
NWS Wind Report Location: 5 Ese Voorhies, IA
UNK mph
Jul 20, 2026
9:20 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Delayed report - trained spotter reported tree limbs 3 feet long and about 4 to 5 inches in diameter down. Time estimated from radar.
NWS Wind Report Location: 1 Se Cedar Falls, IA
63 mph
Jun 11, 2026
2:38 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Delayed report - measured at KALO ASOS.
NWS Wind Report Location: Waterloo Regional Airpo, IA
69 mph
Jun 10, 2026
4:49 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Delayed report. Peak wind gust from a personal weather station.
NWS Wind Report Location: 4 S Jesup Golf Course, IA
62 mph
Jun 10, 2026
4:44 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Delayed report. Peak wind gust from a personal weather station.
NWS Wind Report Location: 1 W La Porte City, IA
58 mph
Sep 17, 2025
1:25 AM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Wind gust measured by the Waterloo ASOS. Time from METAR.
NWS Wind Report Location: Waterloo Regional Airpo, IA
72 mph
Aug 15, 2025
9:59 PM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Measured by a personal weather station. Reports of trees down in town as well.
NWS Wind Report Location: 1 ENE La Porte City, IA
60 mph
Jul 30, 2025
6:58 AM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Personal weather station.
NWS Wind Report Location: 4 W Jesup Golf Course, IA
65 mph
Jul 30, 2025
6:50 AM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Iowa DOT RWIS.
NWS Wind Report Location: 2 WSW Evansdale, IA
59 mph
Jul 30, 2025
6:43 AM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Personal weather station.
NWS Wind Report Location: 2 SW Waterloo, IA
78 mph
Jul 29, 2025
6:19 AM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: gust to 78 mph at ASOS.
NWS Wind Report Location: Waterloo Regional Airpo, IA
UNK mph
Jul 29, 2025
6:15 AM UTC
Wind report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Wind Report Description: Several reports across waterloo of trees on utility lines and transformers. Power is out in various locations around waterloo. Time estimated by radar.
NWS Wind Report Location: Waterloo, 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 Black Hawk County

30 reports
UNK category
Jul 14, 2021
11:19 PM UTC
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: BRIEF TORNADO REPORTED NEAR THE JOHN DEERE FACILITY WITH DAMAGE REPORTED NEAR US 218.
NWS Tornado Report Location: 1 NW Waterloo, IA
UNK category
Jul 14, 2021
11:19 PM UTC
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: DELAYED REPORT - BRIEF TORNADO TOUCHDOWN NEAR JOHN DEERE COMPLEX WITH SOME DAMAGE EITHER SIDE OF US 218.
NWS Tornado Report Location: 1 NW Waterloo, IA
UNK category
Mar 28, 2020
10:50 PM UTC
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: TRAINED SPOTTER REPORTED A GRAIN BIN AND OUTBUILDING DESTROYED. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 4 E Hudson, IA
UNK category
Mar 28, 2020
10:40 PM UTC
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: TORNADO ALSO CONFIRMED VIA SOCIAL MEDIA PHOTOS. LOCATION APPROXIMATE.
NWS Tornado Report Location: 5 S Hudson, IA
UNK category
Oct 9, 2018
10:30 PM UTC
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: REPORTED AT 3717 W. GRESHAM ROAD CEDAR FALLS... IA. ROOF DAMAGE TO FARM BUILDING... POWERLINES DOWN.
NWS Tornado Report Location: 3 ESE Janesville, IA
EF0 category
Aug 31, 2014
9:12 PM CST-6
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Tornado moved across northern Black Hawk county and produced crop damage. Tornado was found and rated using high resolution satellite imagery.
NWS Tornado Report Location: 3.1 ESE Boies, IA
EF0 category
Aug 31, 2014
9:04 PM CST-6
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: This tornado moved northeast on the southeast edge of Janesville. This tornado produced primarily crop damage with some minor tree damage.
NWS Tornado Report Location: 3.49 ENE Farmer, IA
EF2 category
May 25, 2008
4:16 PM CST-6
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Tornado moved in from Butler County and became very broad as it headed toward Fairbank. Tornado lifted on the Buchanan County border.
NWS Tornado Report Location: 1.15 NNW Benson, IA
EF0 category
Jun 21, 2007
4:22 PM CST-6
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Brief touchdown with no significant damage.
NWS Tornado Report Location: 1.47 SSW Castle Hill, IA
F0 category
May 21, 2004
2:21 PM CST
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Brief touchdown in open areas south of Waterloo.
NWS Tornado Report Location: 3 S Waterloo, IA
F0 category
Apr 18, 2002
6:08 PM CST
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Tornado touched down briefly in open country.
NWS Tornado Report Location: 3 SW Eagle Center, IA
F0 category
Jun 1, 2001
3:52 PM CST
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Weak tornado moved into the area, but was only on the ground briefly.
NWS Tornado Report Location: Gilbertville, IA
F0 category
Jun 1, 2001
3:30 PM CST
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Brief touchdown on the edge of town.
NWS Tornado Report Location: Cedar Falls, IA
F0 category
Jun 1, 2001
3:30 PM CST
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Brief touchdown in open area east of town.
NWS Tornado Report Location: 2 E Dunkerton, IA
F0 category
Jun 1, 2001
3:25 PM CST
Tornado report for Black Hawk County, IA
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Brief touchdown in open country east of town.
NWS Tornado Report Location: 2 E Finchford, IA
Showing 15 of 30
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 Black Hawk County on the Interactive Map

Report type
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Wind
Tornado

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Browse Cities with NWS Storm Reports in Black Hawk County

Waterloo, IA 214
Hail, wind & tornado reports
Cedar Falls, IA 153
Hail, wind & tornado reports
Hudson, IA 42
Hail, wind & tornado reports
Dunkerton, IA 31
Hail, wind & tornado reports
La Porte City, IA 30
Hail, wind & tornado reports
Washburn, IA 23
Hail, wind & tornado reports
Evansdale, IA 22
Hail, wind & tornado reports
Gilbertville, IA 13
Hail, wind & tornado reports
Elk Run Heights, IA 10
Hail, wind & tornado reports
Raymond, IA 9
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Black Hawk County, IA area census snapshot

People & households
Population130,693
Households53,740
Housing units58,748
Income
Median household income$64,581
$100k+ households35.9%
$150k+ households13.1%
Housing stock
Single-family detached40,971
Attached single-family2,645
Small multifamily6,440
Large multifamily7,025
Mobile homes1,643
Housing mix
Single-family share69.7%
Attached-home share4.5%
Multifamily share22.9%
Mobile-home share2.8%
Ownership & occupancy
Owner-occupied35,102
Renter-occupied18,638
Vacant units5,008
Home value & age
Median home value$182,400
Owner homes $300k+19.8%
Owner homes $500k+4.5%
Owner homes $750k+0.9%
Median year built1966
Older-home share70.7%
Vehicle context
Households with cars50,047
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 Black Hawk County

50613 145
Cedar Falls, IA Hail, wind & tornado reports
50701 119
Waterloo, IA Hail, wind & tornado reports
50703 102
Waterloo, IA Hail, wind & tornado reports
50629 65
Fairbank, IA Hail, wind & tornado reports
50675 59
Traer, IA Hail, wind & tornado reports
50648 58
Jesup, IA Hail, wind & tornado reports
50651 50
La Porte City, IA Hail, wind & tornado reports
50702 46
Waterloo, IA Hail, wind & tornado reports
50669 44
Reinbeck, IA Hail, wind & tornado reports
50670 32
Shell Rock, IA Hail, wind & tornado reports
50643 26
Hudson, IA Hail, wind & tornado reports
50707 24
Evansdale, IA Hail, wind & tornado reports
50647 23
Janesville, IA Hail, wind & tornado reports
50626 22
Dunkerton, IA Hail, wind & tornado reports
50667 5
Raymond, IA Hail, wind & tornado reports
50612 4
IA Hail, wind & tornado reports
50634 3
Gilbertville, IA Hail, wind & tornado reports

Get a Remote Hail Inspection

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

Our records show 256 hail, 279 wind, and 40 tornado reports in Black Hawk County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 7, 2026.

What is the largest hail ever reported in Black Hawk County?

The largest hail size in these storm-report records in Black Hawk County is 4.50″. It was reported near .51 E Farmer, IA on July 16, 2007.

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

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

I am selling a home in Black Hawk 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 Black Hawk County address?

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