Heads up! Small hail spotted in this region: Mason City, IA      ATTENTION! Damaging hail detected. Hail tracking is now active for this region: Champaign, IL      
HailGeeks
NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in and near ZIP 50701

Public hail, wind, and tornado reports in and near ZIP 50701 from July 7, 1956 through August 7, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 50701 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
55
Wind Reports
58
Tornado Reports
6
Max Hail Size
4.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  ZIP 50701 · 1956–present Updated  Daily · last Aug 7, 2026

Latest NWS Hail Reports in and near ZIP 50701

55 reports
Free hail report for your home →
2.00″ hail
Apr 14, 2026
9:29 PM UTC
Hail report for ZIP 50701
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
1.50″ hail
Apr 14, 2026
9:20 PM UTC
Hail report for ZIP 50701
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
Sep 17, 2025
10:00 AM UTC
Hail report for ZIP 50701
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
Jul 15, 2024
9:35 PM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: Relayed by broadcast media.
NWS Hail Report Location: 6 E Voorhies, IA
1.75″ hail
Jun 25, 2023
6:03 AM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: Report from mPING: Golf Ball (1.75 in.).
NWS Hail Report Location: 3 SW Waterloo, IA
1.50″ hail
Jun 25, 2023
6:00 AM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: Shredded leaves from hail. Delayed report.
NWS Hail Report Location: 1 NW Gilbertville, IA
2.75″ hail
Jun 25, 2023
5:55 AM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: From KWWL TV viewer.
NWS Hail Report Location: 2 SSW Waterloo, IA
1.75″ hail
Jun 25, 2023
5:52 AM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 SW Waterloo, IA
1.50″ hail
Jun 15, 2017
11:58 PM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 ESE Cedar Falls, IA
1.50″ hail
Jun 15, 2017
11:54 PM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 NW Waterloo, IA
1.00″ hail
Apr 16, 2017
12:31 AM UTC
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 NNW Gilbertville, IA
0.88″ hail
Apr 27, 2014
7:01 AM CST-6
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .95 NW Washburn, IA
1.00″ hail
May 29, 2013
3:30 PM CST-6
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.47 SSW Waterloo, IA
1.25″ hail
Apr 29, 2013
8:30 AM CST-6
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: Quarter to half dollar size hail.
NWS Hail Report Location: N Waterloo, IA
1.00″ hail
Apr 29, 2013
8:20 AM CST-6
Hail report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Hail Report Description: Hail covering the ground at the intersection of Greenhill Road and Rainbow Drive.|Relayed by KCVM.
NWS Hail Report Location: .86 SE Castle Hill, IA
Showing 15 of 55
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 50701

58 reports
Free hail report + wind check →
UNK mph
Aug 7, 2026
9:33 PM UTC
Wind report for ZIP 50701
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
59 mph
Jul 30, 2025
6:43 AM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Personal weather station.
NWS Wind Report Location: 2 SW Waterloo, IA
UNK mph
Jun 12, 2025
12:28 AM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Tree damage covering road. Small to medium branches. Time estimated from radar.
NWS Wind Report Location: 1 SW Waterloo, IA
74 mph
Mar 15, 2025
12:34 AM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Personal weather station reported a peak gust of 74 mph.
NWS Wind Report Location: 3 W Washburn, IA
UNK mph
May 21, 2024
11:41 PM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Report from mPING: 3-inch tree limbs broken; Power poles broken.
NWS Wind Report Location: 3 SW Waterloo, IA
UNK mph
Jul 14, 2021
11:22 PM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: TREES DOWN. TIME ESTIMATED.
NWS Wind Report Location: Waterloo, IA
UNK mph
Jul 14, 2021
11:17 PM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: NUMEROUS TREES DOWN. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Waterloo, IA
UNK mph
Sep 10, 2019
1:40 AM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: DAMAGE TO MOBILE HOME SKIRTING. 2.5 INCH TREE LIMBS DOWN. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 2 NNW Washburn, IA
UNK mph
Aug 4, 2016
6:13 PM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: LARGE TREE DOWN ON SOME POWER LINES. DELAYED REPORT.
NWS Wind Report Location: Waterloo, IA
UNK mph
Jul 17, 2016
9:35 AM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: A SHED AND A MORTON BUILDING PARTIALLY DESTROYED. NUMEROUS TREES AT LEAST 12 TO 18 INCHES IN DIAMETER SNAPPED NEAR THE BASE.
NWS Wind Report Location: 1 NNW Gilbertville, IA
UNK mph
Jul 17, 2016
9:35 AM UTC
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: NUMEROUS 2 TO 6 INCH DIAMETER TREE LIMBS DOWN IN RAYMAR. RELAYED BY KWWL. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 1 SSE Elk Run Heights, IA
60 mph
Jun 30, 2014
1:16 PM CST-6
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Estimated wind gust, also 1.25 inches of rain.
NWS Wind Report Location: 3.36 WNW La Porte City Arpt, IA
60 mph
Sep 5, 2012
12:33 AM CST-6
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: A large linden tree was split in half due to strong winds.
NWS Wind Report Location: .51 W Castle Hill, IA
66 mph
May 24, 2012
4:20 PM CST-6
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Three foot diameter tree at Orange Elementary School was uprooted. Numerous large tree branches were downed near the school along Washington Street.
NWS Wind Report Location: .65 ESE Orange, IA
79 mph
Jun 23, 2010
1:25 AM CST-6
Wind report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Wind Report Description: Large trees down, power lines down, some damage to home on Gloria Drive.
NWS Wind Report Location: 2.91 SW Waterloo, IA
Showing 15 of 58
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 50701

6 reports
UNK category
Jul 14, 2021
11:19 PM UTC
Tornado report for ZIP 50701
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 ZIP 50701
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 ZIP 50701
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
EF0 category
Jun 21, 2007
4:22 PM CST-6
Tornado report for ZIP 50701
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
Apr 23, 2001
7:15 AM CST
Tornado report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Tornado Report Description: Brief touchdown with minor damage to buildings.
NWS Tornado Report Location: 2 W Gilbertville, IA
F0 category
Jun 27, 1990
3:45 PM CST
Tornado report for ZIP 50701
Black Hawk County · 40,971 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
Showing 6 of 6
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 50701 on the Interactive Map

Report type
Hail
Wind
Tornado

Get a free hail report for your address

Address-level hail history. 100% free. No phone or email required.

Look up your address →

NWS Storm Reports & Census Data

U.S. Census Data · ZIP Code

ZIP 50701 area census snapshot

People & households
Population29,745
Households13,213
Housing units14,530
Income
Median household income$62,857
$100k+ households35.1%
$150k+ households13.1%
Housing stock
Single-family detached9,205
Attached single-family764
Small multifamily2,187
Large multifamily1,808
Mobile homes566
Housing mix
Single-family share63.4%
Attached-home share5.3%
Multifamily share27.5%
Mobile-home share3.9%
Ownership & occupancy
Owner-occupied8,862
Renter-occupied4,351
Vacant units1,317
Home value & age
Median home value$183,400
Owner homes $300k+14.9%
Owner homes $500k+4.1%
Owner homes $750k+0.7%
Median year built1969
Older-home share71.8%
Vehicle context
Households with cars12,495
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 50701 have on record?

Our records show 55 hail, 58 wind, and 6 tornado reports in and near ZIP 50701, 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 ZIP 50701?

The largest hail size in these storm-report records in and near ZIP 50701 is 4.75″. It was reported near Oskaloosa, IA on May 8, 2003.

A storm report showed up near my home in ZIP 50701 — 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 50701 and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in ZIP 50701 — 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 50701 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in ZIP 50701 — 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 50701 address?

Use the address search to pull a free address-level hail report for any property in ZIP 50701 — 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 50701, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 50701, 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.

Free Hail Report By Address

Check Your Address in Seconds

Free hail report for any address in the contiguous U.S.

Get a Free Hail Report

100% free. No phone or email required.