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

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

Public hail, wind, and tornado reports in and near Keystone, IA from August 25, 1965 through July 11, 2025, 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
18
Wind Reports
29
Tornado Reports
3
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Keystone, IA · 1965–present Updated  Daily · last Jul 11, 2025

Latest NWS Hail Reports in and near Keystone, IA

18 reports
Free hail report for your home →
0.88″ hail
Feb 26, 2009
1:20 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: A trained spotter reported nickel size hail completely covering the ground about 4 miles north of Keystone.
NWS Hail Report Location: 4.15 N Keystone, IA
0.88″ hail
Jun 25, 2008
8:20 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: A trained spotter reported penny to nickel size hail 3 miles southeast of Keystone.
NWS Hail Report Location: 3.3 SE Keystone, IA
0.88″ hail
Jun 20, 2008
1:35 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: Penny to nickel-sized hail fell for about 10 minutes about 5 miles northwest of Van Horne, IA between 2:35 and 2:45 pm June 20.
NWS Hail Report Location: 4.63 NNE Keystone, IA
1.00″ hail
Jun 14, 2008
2:28 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: Hail the size of quarters was reported 2 miles south of Keystone.
NWS Hail Report Location: 2.07 S Keystone, IA
1.00″ hail
Jun 14, 2008
2:28 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: Hail the size of quarters was reported in Keystone.
NWS Hail Report Location: N Keystone, IA
0.88″ hail
May 1, 2008
10:57 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: A cocorahs observer reported penny to nickel size hail southeast of Keystone.
NWS Hail Report Location: 3.77 SE Keystone, IA
0.88″ hail
Apr 2, 2007
8:47 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Keystone, IA
0.75″ hail
Mar 31, 2007
3:15 PM CST-6
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: Penny size hail reported.
NWS Hail Report Location: N Keystone, IA
1.25″ hail
Jul 17, 2006
4:41 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: Dime then quarter to half dollar size hail
NWS Hail Report Location: Keystone, IA
1.50″ hail
Jul 17, 2006
4:35 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 N Keystone, IA
0.75″ hail
Jun 4, 2005
8:01 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 S Keystone, IA
0.88″ hail
Mar 30, 2005
2:23 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Keystone, IA
1.00″ hail
May 21, 2004
2:32 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Keystone, IA
0.88″ hail
May 14, 2003
3:55 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Keystone, IA
1.75″ hail
May 10, 2003
4:07 PM CST
Hail report for Keystone, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 W Keystone, IA
Showing 15 of 18
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 Keystone, IA

29 reports
Free hail report + wind check →
60 mph
Jun 12, 2025
1:33 AM UTC
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: Estimated 60 MPH gust blew over lawn furniture.
NWS Wind Report Location: Keystone, IA
UNK mph
Aug 10, 2020
5:28 PM UTC
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: WIDESPREAD DAMAGE ACROSS SOUTHERN BENTON COUNTY... FROM KEYSTONE... TO VAN HORNE AND THE ATKINS AREA. NUMEROUS HOUSES... OUTBUILDINGS... GRAIN BINS AND TREES DAMAGED OR DESTROYED. TIME ESTIMATED.
NWS Wind Report Location: Keystone, IA
60 mph
Jun 15, 2019
11:31 PM UTC
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: NEAR HWY 30 AND IA 131.
NWS Wind Report Location: 3 SW Keystone, IA
67 mph
May 17, 2019
1:33 AM UTC
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2 S Keystone, IA
70 mph
Mar 7, 2017
2:30 AM UTC
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Keystone, IA
70 mph
Jun 16, 2014
8:39 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: The emergency manager reported 70 mph winds at the Keystone Fire Department.
NWS Wind Report Location: .69 N Keystone, IA
64 mph
Jun 29, 2012
4:18 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: A 64 mph wind gust was recorded 2 miles southeast of Keystone, IA at 518 pm CDT June 29.
NWS Wind Report Location: 2.07 SE Keystone, IA
70 mph
Jul 11, 2011
4:03 AM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 70 mph blew down several large trees in Keystone, IA around 503 am CDT July 11. Some crop damage was also observed.
NWS Wind Report Location: N Keystone, IA
75 mph
Jul 11, 2011
3:49 AM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: A 75 mph wind gust was recorded 3 miles southeast of Keystone, IA at 449 am CDT July 11.
NWS Wind Report Location: 3.3 SE Keystone, IA
70 mph
Aug 13, 2010
12:06 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 70 mph blew a large tree down across a road about 2 miles northeast of Keystone, IA around 106 pm CDT August 13.
NWS Wind Report Location: 2.07 NE Keystone, IA
59 mph
Aug 8, 2010
10:41 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: A 59 mph wind gust was measured about 3 miles southeast of Keystone, IA at 1141 pm CDT August 8.
NWS Wind Report Location: 3.3 SE Keystone, IA
60 mph
Jun 18, 2010
10:34 AM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: A 60 mph wind gust was measured about 1 mile south of Keystone, IA at 1134 am June 18.
NWS Wind Report Location: .69 S Keystone, IA
81 mph
Aug 9, 2009
6:45 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 80 mph blew down several 1.5 foot diameter trees and 3 to 6 inch diameter tree limbs, moved and overturned some grain wagons about 100 yards, blew away some mail boxes, and ripped the doors off a house and barn about 4 miles southwest of Van Horne, IA around 745 pm August 9.
NWS Wind Report Location: 3.3 SE Keystone, IA
90 mph
Aug 9, 2009
6:40 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 90 mph were observed in Keystone, IA around 740 pm August 9. This report was relayed by the emergency manager.
NWS Wind Report Location: N Keystone, IA
70 mph
Aug 9, 2009
6:23 PM CST-6
Wind report for Keystone, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 70 mph blew down some trees and tree limbs in Keystone, IA around 723 pm August 9.
NWS Wind Report Location: N Keystone, IA
Showing 15 of 29
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 Keystone, IA

3 reports
UNK category
Jul 11, 2025
8:20 PM UTC
Tornado report for Keystone, IA
Benton County · 9,761 Homes in County
Tornado Report Description: EF1 tornado with peak winds of 105 mph hit a farm outbuilding around 320 PM. The path continued through corn hitting a house... snapping some trees and destroying a garage at the end of its 0.7 mile long and 20 yd wide path.
NWS Tornado Report Location: 3 ENE Keystone, IA
F0 category
Apr 8, 2001
8:50 PM CST
Tornado report for Keystone, IA
Benton County · 9,761 Homes in County
Tornado Report Description: Brief tornado touchdown on the Benton/Tama county line at Highway 21. No injuries or damage reported.
NWS Tornado Report Location: 6 WNW Keystone, IA
F3 category
Apr 19, 1966
6:42 PM CST
Tornado report for Keystone, IA
Benton County · 9,761 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 Keystone, IA on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Keystone

52249 37
Keystone, IA Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Keystone, IA area census snapshot

People & households
Population825
Households286
Housing units303
Income
Median household income$68,750
$100k+ households32.9%
$150k+ households11.2%
Housing stock
Single-family detached285
Attached single-family0
Small multifamily6
Large multifamily12
Mobile homes0
Housing mix
Single-family share94.1%
Attached-home share--
Multifamily share5.9%
Mobile-home share--
Ownership & occupancy
Owner-occupied231
Renter-occupied55
Vacant units17
Home value & age
Median home value$141,100
Owner homes $300k+4.8%
Owner homes $500k+--
Owner homes $750k+--
Median year built1942
Older-home share87.5%
Vehicle context
Households with cars268
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 Keystone have on record?

Our records show 18 hail, 29 wind, and 3 tornado reports in and near Keystone, IA, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on July 11, 2025.

What is the largest hail ever reported in Keystone?

The largest hail size in these storm-report records in and near Keystone, IA is 1.75″. It was reported near Keystone, IA on May 10, 2003.

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

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

I am selling a home in Keystone — 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 Keystone address?

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