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

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

Public hail, wind, and tornado reports in and near Winthrop, IA from May 24, 1989 through April 14, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 50682 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
6
Wind Reports
16
Tornado Reports
8
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Winthrop, IA · 1989–present Updated  Daily · last Apr 14, 2026

Latest NWS Hail Reports in and near Winthrop, IA

6 reports
Free hail report for your home →
1.75″ hail
May 24, 2024
12:00 PM UTC
Hail report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Hail Report Description: A lot of quarter sized hail and some golf balls.
NWS Hail Report Location: 3 SE Winthrop, IA
1.75″ hail
Apr 7, 2023
2:34 AM UTC
Hail report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 SSE Winthrop, IA
1.75″ hail
Apr 5, 2023
2:30 AM UTC
Hail report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Winthrop, IA
1.25″ hail
May 12, 2010
3:15 PM CST-6
Hail report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Hail Report Description: Quarter to half dollar-sized hail fell 3 miles east of Winthrop, IA around 415 pm May 12. This report was relayed by the emergency manager.
NWS Hail Report Location: 2.55 E Buffalo Creek Co Park, IA
0.75″ hail
Aug 9, 1993
7:13 PM CST
Hail report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Winthrop, IA
0.75″ hail
Jun 22, 1989
4:08 PM CST
Hail report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IA
Showing 6 of 6
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 Winthrop, IA

16 reports
Free hail report + wind check →
UNK mph
Jul 15, 2024
10:19 PM UTC
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: Delayed report and time estimated from radar. Tree down on a car.
NWS Wind Report Location: Winthrop, IA
UNK mph
Apr 16, 2024
8:08 PM UTC
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: semi blown over at milemarker 261. Highway blocked. Time of the event estimated using radar.
NWS Wind Report Location: 1 SW Winthrop, IA
UNK mph
Jul 9, 2020
7:45 PM UTC
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: EM REPORTS A LARGE SWATCH OF TALL CORN WAS BLOWN OVER NEAR WINTHROP... LIKELY DUE TO MICROBURST WINDS. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Winthrop, IA
65 mph
Jun 10, 2018
3:00 AM UTC
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2 SW Masonville, IA
60 mph
Jun 10, 2018
2:50 AM UTC
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Winthrop, IA
UNK mph
Jun 10, 2018
2:20 AM UTC
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: ROOF BLOWN OFF OF A HOME. RELAYED BY THE EM. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 2 S Winthrop, IA
64 mph
Jun 20, 2015
9:30 AM CST-6
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: Tree branches between 6 and 10 inches in diameter were blown down.
NWS Wind Report Location: N Winthrop, IA
60 mph
Jul 22, 2013
6:05 PM CST-6
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: Wind gusts were estimated to be 60 mph in Winthrop, IA at 705 pm CDT July 22.
NWS Wind Report Location: N Winthrop, IA
60 mph
Jul 25, 2012
8:50 PM CST-6
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: The public reported tree limbs up to 5 inches in diameter were down near Winthrop.
NWS Wind Report Location: N Winthrop, IA
70 mph
Aug 13, 2010
1:15 PM CST-6
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: Wind gusts estimated to be 70 mph blew a tree down onto a house about 5 miles southwest of Masonville, IA at 215 pm CDT August 13.
NWS Wind Report Location: 2.13 NNE Monti, IA
60 mph
Apr 16, 2004
10:41 PM CST
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Winthrop, IA
UNK mph
Jun 23, 2000
12:00 PM CST
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2 N Winthrop, IA
58 mph
Aug 24, 1998
9:40 AM CST
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Winthrop, IA
UNK mph
Jun 24, 1998
1:00 AM CST
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: Gusty thunderstorm winds ripped portions of the roof off a building supply company causing extensive damage to the building, office equipment, and building materials. Nearly all of the office equipment was ruined due to water damage along with the wind damage.
NWS Wind Report Location: Winthrop, IA
UNK mph
Apr 27, 1991
2:00 AM CST
Wind report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, IA
Showing 15 of 16
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 Winthrop, IA

8 reports
UNK category
Apr 14, 2026
10:25 PM UTC
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: An EF1 tornado began east-southeast of Winthrop and tracked into Delaware County to just east-southeast of Masonville. A barn was completely destroyed at the beginning of its 4.3 mile long path. Additional damage to outbuildings and numerous trees was observed. The tornado also crossed U.S. Highway 20 just south of Masonville. The tornado did roll over a semi trailer.
NWS Tornado Report Location: 3 WSW Masonville, IA
UNK category
Jul 7, 2022
2:00 AM UTC
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: CORRECTED TIME. VIDEO FROM A WINTHROP FIRE DEPARTMENT SPOTTER CAPTURED A BRIEF TORNADO JUST WEST OF WINTHROP. THE TORNADO OCCURRED IN OPEN FARM LAND... AND THERE WAS NO OBSERVABLE DAMAGE TO ASSIGN AN EF-SCALE RATING. TIME ESTIMATED BY RADAR. ASSISTANCE FROM BUCHANAN COUNTY EMERGENCY MANAGEMENT IS GREATLY APPRECIATED.
NWS Tornado Report Location: 1 W Winthrop, IA
UNK category
Jul 7, 2022
1:00 AM UTC
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: VIDEO FROM A WINTHROP FIRE DEPARTMENT SPOTTER CAPTURED A BRIEF TORNADO JUST WEST OF WINTHROP. THE TORNADO OCCURRED IN OPEN FARM LAND... AND THERE WAS NO OBSERVABLE DAMAGE TO ASSIGN AN EF-SCALE RATING. TIME ESTIMATED BY RADAR. ASSISTANCE FROM BUCHANAN COUNTY EMERGENCY MANAGEMENT IS GREATLY APPRECIATED.
NWS Tornado Report Location: 1 W Winthrop, IA
UNK category
Jun 12, 2018
2:36 AM UTC
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: AN EF-1 TORNADO TOUCHED DOWN SOUTHEAST OF WINTHROP... IA. A HOUSE WAS DAMAGED. GARAGE DOOR FAILED AND ROOF CAME OFF IN THE WIND. SOME TREE DAMAGE WAS ALSO NOTED. THE DURATION OF THE TORNADO EVENT WAS 1 MINUTE.
NWS Tornado Report Location: 6 SE Winthrop Ia, IA
F0 category
Aug 11, 2005
7:46 PM CST
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: Rated high F0 with winds estimated at 57 knots (65 mph). Based on areal video footage from KCRG TV Chopper 9.
NWS Tornado Report Location: 3 NW Winthrop, IA
F0 category
Jun 1, 2001
4:34 PM CST
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 6 SE Winthrop, IA
F0 category
Jun 1, 2001
4:29 PM CST
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 4 SE Winthrop, IA
F1 category
Jun 1, 2001
3:55 PM CST
Tornado report for Winthrop, IA
Buchanan County · 7,315 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 3 NW Winthrop, IA
Showing 8 of 8
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 Winthrop, IA on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Winthrop

50682 35
Winthrop, IA Hail, wind & tornado reports
50644 200
Independence, IA Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Winthrop, IA area census snapshot

People & households
Population1,081
Households409
Housing units409
Income
Median household income$64,904
$100k+ households38.4%
$150k+ households14.2%
Housing stock
Single-family detached382
Attached single-family12
Small multifamily6
Large multifamily0
Mobile homes9
Housing mix
Single-family share93.4%
Attached-home share2.9%
Multifamily share1.5%
Mobile-home share2.2%
Ownership & occupancy
Owner-occupied324
Renter-occupied85
Vacant units0
Home value & age
Median home value$149,200
Owner homes $300k+6.5%
Owner homes $500k+--
Owner homes $750k+--
Median year built1967
Older-home share74.3%
Vehicle context
Households with cars400
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 Winthrop have on record?

Our records show 6 hail, 16 wind, and 8 tornado reports in and near Winthrop, IA, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on April 14, 2026.

What is the largest hail ever reported in Winthrop?

The largest hail size in these storm-report records in and near Winthrop, IA is 1.75″. It was reported near Winthrop, IA on May 24, 2024.

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

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

I am selling a home in Winthrop — 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 Winthrop address?

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