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

Hail, Wind & Tornado Reports in Allamakee County, IA

Public hail, wind, and tornado reports across Allamakee County, IA from May 26, 1958 through September 4, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 52101 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
94
Wind Reports
119
Tornado Reports
11
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Allamakee County, IA · 1958–present Updated  Daily · last Sep 4, 2026

Latest NWS Hail Reports in Allamakee County

30 reports
Free hail report for your home →
1.00″ hail
Apr 17, 2026
9:18 PM UTC
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter size hail in Postville relayed from Emergency Manager.
NWS Hail Report Location: Postville, IA
1.00″ hail
Apr 17, 2026
9:18 PM UTC
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter size hail in Postville relayed from Emergency Manager.
NWS Hail Report Location: Postville, IA
1.00″ hail
Apr 17, 2026
8:56 PM UTC
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Harpers Ferry, IA
0.88″ hail
Jun 29, 2015
5:28 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Harpers Ferry, IA
1.00″ hail
Jun 29, 2015
5:20 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter sized hail fell northwest of Harpers Ferry.
NWS Hail Report Location: 3.42 SW Wexford, IA
1.00″ hail
Jun 29, 2015
5:08 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter sized hail fell northwest of Lansing.
NWS Hail Report Location: 1.71 NW Lansing, IA
0.75″ hail
Aug 18, 2014
4:30 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.74 NE Waukon Muni Arpt, IA
1.00″ hail
Aug 18, 2014
4:15 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter sized hail fell in Waukon.
NWS Hail Report Location: N Waukon, IA
0.75″ hail
Jun 29, 2014
8:10 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Waukon, IA
0.88″ hail
Jun 29, 2014
8:10 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.66 ENE Ludlow, IA
0.75″ hail
Apr 12, 2014
7:00 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.15 E New Albin, IA
1.00″ hail
Apr 12, 2014
6:39 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter sized hail fell near Dorchester.
NWS Hail Report Location: 2.04 NE Dorchester, IA
0.88″ hail
Apr 12, 2014
5:53 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Waukon, IA
1.00″ hail
Apr 12, 2014
2:55 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: Quarter sized hail was reported in Waukon.
NWS Hail Report Location: N Waukon, IA
0.75″ hail
Apr 12, 2014
2:55 PM CST-6
Hail report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Waukon, 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 Allamakee County

30 reports
Free hail report + wind check →
UNK mph
Sep 4, 2026
7:38 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Report of several trees down across Allamakee County. Time and location estimated from radar.
NWS Wind Report Location: 4 Nne Waukon, IA
UNK mph
Sep 21, 2024
9:51 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Tree branches downed on Highway 26.
NWS Wind Report Location: 4 SSE New Albin, IA
UNK mph
Aug 6, 2024
3:48 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Large tree snapped at base. Report via social media. Time estimated from radar.
NWS Wind Report Location: Waterville, IA
UNK mph
Jun 22, 2024
10:01 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Tree blown down.
NWS Wind Report Location: Dorchester, IA
UNK mph
Jun 12, 2024
8:18 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Trees down on RV and RV tipped over at Scenic View Campground.
NWS Wind Report Location: 5 SE Rossville, IA
UNK mph
Jun 12, 2024
8:09 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Trees down in the Yellow River area. Large amount of dust and dirt kicked up also.
NWS Wind Report Location: 2 N Postville, IA
59 mph
Jun 12, 2024
8:07 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Postville, IA
UNK mph
May 22, 2024
12:00 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: Tree split in half and a recreational vehicle destroyed. Time estimated from radar.
NWS Wind Report Location: Waukon, IA
60 mph
Jul 24, 2022
4:45 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: SMALL BRANCHES DOWN IN TOWN ALONG WITH SOME MINOR FLOODING.
NWS Wind Report Location: Waukon, IA
UNK mph
Jul 24, 2022
4:44 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: ROOF BLOWN OFF VET CLINIC. PARTIAL ROOF BLOWN OFF A RESIDENCE. OTHER BUSINESSES IN DOWNTOWN AREA HAD SOME ROOF DAMAGE. SEVERAL FLAGPOLES... TREES... AND SIGNS BLOWN DOWN.
NWS Wind Report Location: Waukon, IA
UNK mph
Jul 24, 2022
4:42 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: A FARM LOST A BARN... 2 SILOS... AND 2 POWER POLES.
NWS Wind Report Location: 2 SW Waukon, IA
60 mph
Jul 24, 2022
4:41 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: DEPUTY ESTIMATED AT INTERSECTION OF HIGHWAYS 9 AND 51.
NWS Wind Report Location: 4 W Waukon, IA
UNK mph
Dec 16, 2021
2:23 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: TREE DOWN. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Waukon, IA
UNK mph
Aug 28, 2021
12:42 AM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: POWER LINES DOWN.
NWS Wind Report Location: Postville, IA
UNK mph
Jul 9, 2020
7:22 PM UTC
Wind report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Wind Report Description: TREE AND POWERLINE DAMAGE IN THE WAUKON AREA. TIME ESTIMATED.
NWS Wind Report Location: Waukon, 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 Allamakee County

11 reports
UNK category
Jun 17, 2026
9:53 PM UTC
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: Rating: EF2 ... This long-track tornado touched down about 5 miles east-northeast of Waukon... IA and continued tracking east-southeast... crossing the Mississippi River. It continued southeast through Crawford County before lifting just before reaching Boscobel... WI. Nearly continuous tree damage occurred along its path... significant in some areas. Other damage included destruction of some farm outbuildings and minor damage to a few residences. Damage along the length of its nearly 33 mile path was mostly EF0 to EF1 in magnitude... but significant tree damage northeast of Waterville... IA and several power poles snapped north of Eastman... WI provided evidence of confined more intense winds up to 115mph... consistent with low-end EF2 tornado strength. No injuries were reported.
NWS Tornado Report Location: 2 WNW Elon, IA
UNK category
Jun 27, 2025
12:15 AM UTC
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: EF-0. This tornado developed very close to the Iowa-Minnesota state line... causing damage to trees as it moved east northeast. Despite causing damage to trees within proximity of structures... no structural damage was observed. Max wind of 75 mph.
NWS Tornado Report Location: 5 W New Albin, IA
UNK category
Aug 6, 2024
3:29 AM UTC
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: This shorter EF1 tornado damaged mainly trees along its path north of Waukon. One home and several outbuildings/vehicles were damaged as well.
NWS Tornado Report Location: 6 NW Waukon, IA
F0 category
May 8, 2002
7:10 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 2 SE Waukon, IA
F0 category
Jul 2, 2000
3:35 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 6 E Hanover, IA
F1 category
Jul 19, 1994
9:40 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: S Churchtown, IA
F0 category
Jul 6, 1994
3:50 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Harpers Ferry, IA
F2 category
Jul 29, 1987
6:16 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F1 category
Nov 9, 1975
7:00 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
UNK category
Oct 14, 1966
2:00 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
F2 category
May 4, 1964
6:10 PM CST
Tornado report for Allamakee County, IA
Allamakee County · 5,838 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
Showing 11 of 11
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 Allamakee County on the Interactive Map

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Tornado

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Browse Cities with NWS Storm Reports in Allamakee County

Waukon, IA 86
Hail, wind & tornado reports
Postville, IA 36
Hail, wind & tornado reports
New Albin, IA 33
Hail, wind & tornado reports
Lansing, IA 32
Hail, wind & tornado reports
Harpers Ferry, IA 19
Hail, wind & tornado reports
Waterville, IA 14
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Allamakee County, IA area census snapshot

People & households
Population14,038
Households6,024
Housing units7,730
Income
Median household income$66,000
$100k+ households36.9%
$150k+ households12.2%
Housing stock
Single-family detached5,838
Attached single-family124
Small multifamily473
Large multifamily230
Mobile homes1,062
Housing mix
Single-family share75.5%
Attached-home share1.6%
Multifamily share9.1%
Mobile-home share13.7%
Ownership & occupancy
Owner-occupied4,749
Renter-occupied1,275
Vacant units1,706
Home value & age
Median home value$171,900
Owner homes $300k+20.0%
Owner homes $500k+8.3%
Owner homes $750k+3.5%
Median year built1971
Older-home share60.5%
Vehicle context
Households with cars5,763
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 Allamakee County

52101 148
Decorah, IA Hail, wind & tornado reports
52172 85
Waukon, IA Hail, wind & tornado reports
52159 39
Monona, IA Hail, wind & tornado reports
52162 39
Postville, IA Hail, wind & tornado reports
52151 31
Lansing, IA Hail, wind & tornado reports
52140 22
IA Hail, wind & tornado reports
52146 19
Harpers Ferry, IA Hail, wind & tornado reports
52160 15
New Albin, IA Hail, wind & tornado reports
52156 9
Luana, IA Hail, wind & tornado reports
52170 5
Waterville, IA Hail, wind & tornado reports

Get a Remote Hail Inspection

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

Our records show 94 hail, 119 wind, and 11 tornado reports in Allamakee County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 4, 2026.

What is the largest hail ever reported in Allamakee County?

The largest hail size in these storm-report records in Allamakee County is 2.50″. It was reported near Dorchester, IA on May 11, 2000.

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

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

I am selling a home in Allamakee 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 Allamakee County address?

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