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

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

Public hail, wind, and tornado reports in and near Garrison, IA from August 11, 1964 through June 11, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 52229 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
19
Wind Reports
35
Tornado Reports
6
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Garrison, IA · 1964–present Updated  Daily · last Jun 11, 2026

Latest NWS Hail Reports in and near Garrison, IA

19 reports
Free hail report for your home →
1.00″ hail
Mar 31, 2023
9:46 PM UTC
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 NE Garrison, IA
1.00″ hail
Mar 31, 2023
9:30 PM UTC
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Garrison, IA
1.00″ hail
Aug 28, 2020
9:10 PM UTC
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: DIME TO QUARTER SIZE.
NWS Hail Report Location: 10 NW Garrison, IA
1.25″ hail
Jun 6, 2018
10:35 PM UTC
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: PUBLIC REPORT VIA SOCIAL MEDIA.
NWS Hail Report Location: 4 NNE Garrison, IA
0.75″ hail
May 20, 2014
3:30 PM CST-6
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8.73 WNW Garrison, IA
0.75″ hail
Jun 18, 2010
4:47 PM CST-6
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.69 WSW Garrison, IA
0.75″ hail
Apr 6, 2010
5:26 PM CST-6
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: Non-severe hail (<1.0) fell 7 miles west of Vinton, IA at 626 pm April 6.
NWS Hail Report Location: .86 NW Garrison, IA
1.00″ hail
Feb 26, 2009
1:15 PM CST-6
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.81 S Garrison, IA
1.00″ hail
May 25, 2008
9:11 PM CST-6
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: Quarter-sized hail fell just east of Dysart, IA around 10:11 pm.
NWS Hail Report Location: 7.3 W Garrison, IA
0.75″ hail
Aug 27, 2007
8:17 AM CST-6
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: Hail the size of a penny fell in Garrison, IA.
NWS Hail Report Location: .86 SE Garrison, IA
1.75″ hail
Apr 13, 2006
6:32 PM CST
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: 63rd Street & 20th Avenue
NWS Hail Report Location: 3 SE Garrison, IA
1.00″ hail
Apr 13, 2006
6:29 PM CST
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: 63rd Street & 18th Avenue; covering the ground
NWS Hail Report Location: 3 S Garrison, IA
0.75″ hail
Apr 13, 2006
6:22 PM CST
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: 63rd Street & 20th Ave
NWS Hail Report Location: 3 SE Garrison, IA
1.00″ hail
Apr 13, 2006
6:07 PM CST
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: Relayed by EM; quarter size hail at 63rd St & highway 21 on the Tama/Benton Line.
NWS Hail Report Location: 9 WSW Garrison, IA
1.00″ hail
Apr 13, 2006
6:07 PM CST
Hail report for Garrison, IA
Benton County · 9,761 Homes in County
Hail Report Description: Relayed by EM; dime to quarter size hail
NWS Hail Report Location: 2 W Garrison, IA
Showing 15 of 19
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 Garrison, IA

30 reports
Free hail report + wind check →
UNK mph
Jun 11, 2026
1:50 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: Snapped trees took out a power line. Time estimated from radar.
NWS Wind Report Location: Garrison, IA
60 mph
Aug 15, 2025
10:10 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: Report of 60+ mph winds. Time estimated by radar.
NWS Wind Report Location: Garrison, IA
60 mph
May 21, 2024
11:36 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2 W Garrison, IA
UNK mph
Mar 31, 2023
9:45 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: ESTIMATED NEAR 70 MPH WINDS. LARGE BARN WAS DAMAGED... TRAILER DAMAGED... TREE BRANCHES DOWN... AND AN OUTBUILDING WITH DAMAGE. POSSIBLE TORNADO.
NWS Wind Report Location: Garrison, IA
UNK mph
Mar 31, 2023
9:44 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: FIRE DEPARTMENT REPORTED 70 MPH WITH DAMAGE TO HOMES. REPORT RELAYED BY THE EMERGENCY MANAGER.
NWS Wind Report Location: 2 NE Garrison, IA
60 mph
Mar 31, 2023
9:30 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Garrison, IA
60 mph
Aug 28, 2020
9:10 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 10 NW Garrison, IA
UNK mph
Aug 28, 2020
9:10 PM UTC
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: MACHINE SHED DOOR BLOWN OFF.
NWS Wind Report Location: 10 NW Garrison, IA
70 mph
Jun 30, 2014
1:23 PM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: The emergency manager reported widespread wind damage across western Benton county.
NWS Wind Report Location: 3.65 W Garrison, IA
70 mph
Jun 30, 2014
1:23 PM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: The emergency manager reported widespread damage in Garrison. Winds were estimated at 70 mph.
NWS Wind Report Location: .86 SE Garrison, IA
120 mph
Jul 11, 2011
3:55 AM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 120 mph caused significant damage in Garrison, IA around 455 am CDT July 11. The fire station was destroyed. The roof of the library blew off. About 80 percent of the structures in town were damaged with significant damage to about 20 percent of them.
NWS Wind Report Location: .33 SSE Garrison, IA
60 mph
Aug 13, 2010
12:25 PM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts estimated to be 60 mph were observed about 5 miles southwest of Vinton, IA at 125 pm CDT August 13.
NWS Wind Report Location: 3.77 SE Garrison, IA
60 mph
Jun 18, 2010
4:45 PM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts were estimated to be 55 to 60 mph 7 miles southwest of Vinton, IA at 545 pm June 18.
NWS Wind Report Location: 4.42 SSE Garrison, IA
75 mph
Jun 23, 2009
3:52 PM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: Wind gusts were estimated to be 70 to 75 mph about 3 miles west of Garrison, IA around 452 pm June 23.
NWS Wind Report Location: 2.65 WSW Garrison, IA
70 mph
Jun 23, 2009
3:46 PM CST-6
Wind report for Garrison, IA
Benton County · 9,761 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1.69 WSW Garrison, 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 Garrison, IA

6 reports
UNK category
Sep 26, 2023
8:15 PM UTC
Tornado report for Garrison, IA
Benton County · 9,761 Homes in County
Tornado Report Description: Updated the previous funnel cloud report. Emergency Management confirms that there was a brief tornado of unknown intensity. Reports of ground circulation lofting corn leaves off of the ground... beneath the funnel. No other damage was noted.
NWS Tornado Report Location: 4 NW Garrison, IA
UNK category
Mar 6, 2022
1:15 AM UTC
Tornado report for Garrison, IA
Benton County · 9,761 Homes in County
Tornado Report Description: A TORNADO DEVELOPED ABOUT 2.5 MILES SOUTHWEST OF VINTON SATURDAY EVENING... AND TRACKED NORTHEAST THROUGH THE NORTHWEST PORTION OF VINTON... BEFORE LIFTING NORTHEAST OF TOWN. THE TORNADO PATH WAS AROUND 8.5 MILES... AND WAS ON THE GROUND FOR ABOUT 11 MINUTES. THE MAXIMUM TORNADO WIDTH WAS ABOUT 400 YARDS. THE TORNADO WAS RATED A STRONG EF-1... WITH MAXIMUM ESTIMATED WINDS AROUND 110 MPH. SOUTHWEST OF VINTON... THE TORNADO SNAPPED NUMEROUS POWER POLES AND DAMAGED TREES AND OUTBUILDINGS. IN NORTHWEST VINTON... THE TORNADO DAMAGED NUMEROUS STRUCTURES... INCLUDING MOBILE HOMES... HOUSES... AND WOOD FRAME METAL BUILDINGS IN AN INDUSTRIAL PARK. NUMEROUS RESIDENTS OF THE MOBILE HOME PARK THAT WAS IMPACTED WENT TO THE DESIGNATED STORM SHELTER BUILT BY THE CITY OF VINTON. OUTDOOR WARNING SIRENS WERE ACTIVATED 3 TIMES BEFORE THE TORNADO MOVED INTO FAR NORTHWEST VINTON. THERE WERE NO REPORTED INJURIES OR FATALITIES. THE TORNADO CONTINUED NORTHEAST THROUGH RURAL AREAS... CAUSING TREE AND OUTBUILDING DAMAGE.
NWS Tornado Report Location: 3 E Garrison, IA
UNK category
Jul 16, 2021
12:14 AM UTC
Tornado report for Garrison, IA
Benton County · 9,761 Homes in County
Tornado Report Description: DELAYED REPORT. RECEIVED VIDEO OF A TORNADO CROSSING INTO BENTON COUNTY. SAME TORNADO THAT HIT DYSART.
NWS Tornado Report Location: 8 W Garrison, IA
UNK category
Jul 15, 2021
12:36 AM UTC
Tornado report for Garrison, IA
Benton County · 9,761 Homes in County
Tornado Report Description: BENTON COUNTY EMA RELAYED A PUBLIC REPORT OF A BRIEF TORNADO TOUCH DOWN NORTH OF 61ST STREET BETWEEN GARRISON AND VINTON.
NWS Tornado Report Location: 2 E Garrison, IA
UNK category
Jul 15, 2021
12:20 AM UTC
Tornado report for Garrison, IA
Benton County · 9,761 Homes in County
Tornado Report Description: BENTON COUNTY EMA RELAYED PUBLIC REPORT OF A BRIEF TORNADO TOUCHDOWN ALONG 18TH AVENUE 1 MILE NORTH OF GARRISON.
NWS Tornado Report Location: 1 N Garrison, IA
EF0 category
Jul 6, 2014
7:56 PM CST-6
Tornado report for Garrison, IA
Benton County · 9,761 Homes in County
Tornado Report Description: The Keystone Fire Department observed a brief tornado touch down. No damage was reported.
NWS Tornado Report Location: 6.59 SW Garrison, 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 Garrison, IA on the Interactive Map

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Browse ZIP Codes with NWS Storm Reports in Garrison

52229 41
Garrison, IA Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · City

Garrison, IA area census snapshot

People & households
Population292
Households113
Housing units127
Income
Median household income$57,083
$100k+ households36.3%
$150k+ households4.4%
Housing stock
Single-family detached115
Attached single-family0
Small multifamily7
Large multifamily3
Mobile homes2
Housing mix
Single-family share90.6%
Attached-home share--
Multifamily share7.9%
Mobile-home share1.6%
Ownership & occupancy
Owner-occupied83
Renter-occupied30
Vacant units14
Home value & age
Median home value$65,000
Owner homes $300k+2.4%
Owner homes $500k+1.2%
Owner homes $750k+--
Median year built1938
Older-home share93.7%
Vehicle context
Households with cars107
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 Garrison have on record?

Our records show 19 hail, 35 wind, and 6 tornado reports in and near Garrison, IA, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on June 11, 2026.

What is the largest hail ever reported in Garrison?

The largest hail size in these storm-report records in and near Garrison, IA is 2.75″. It was reported near Garrison, IA on September 24, 1984.

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

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

I am selling a home in Garrison — 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 Garrison address?

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