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

Hail, Wind & Tornado Reports in and near ZIP 51104

Public hail, wind, and tornado reports in and near ZIP 51104 from August 8, 1969 through June 2, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 51104 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
4
Wind Reports
11
Tornado Reports
1
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  ZIP 51104 · 1969–present Updated  Daily · last Jun 2, 2026

Latest NWS Hail Reports in and near ZIP 51104

4 reports
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1.00″ hail
Jun 2, 2026
4:33 AM UTC
Hail report for ZIP 51104
Woodbury County · 31,632 Homes in County
Hail Report Description: Report via social media.
NWS Hail Report Location: 2 NNW Sioux City, IA
0.75″ hail
Jul 1, 1996
5:43 PM CST
Hail report for ZIP 51104
Woodbury County · 31,632 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 N Sioux City, IA
0.75″ hail
Jul 9, 1982
3:40 PM CST
Hail report for ZIP 51104
Woodbury County · 31,632 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IA
1.75″ hail
Apr 26, 1975
4:38 AM CST
Hail report for ZIP 51104
Woodbury County · 31,632 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IA
Showing 4 of 4
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 51104

11 reports
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UNK mph
Jul 30, 2024
4:55 AM UTC
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Picture via social media of a large tree down across the intersection of 24th and Jones Street. Time estimated via radar.
NWS Wind Report Location: 1 NNW Sioux City, IA
62 mph
Oct 11, 2020
11:59 PM UTC
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: PERSONAL WEATHER STATION MEASURED GUST.
NWS Wind Report Location: 3 N Sioux City, IA
UNK mph
Aug 10, 2020
1:16 PM UTC
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: BRANCHES AND PART OF A TREE LAYING IN THE ROAD. TREES SWAYED BACK AND FORTH FOR AT LEAST 10 TO 15 MINUTES. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 1 N Sioux City, IA
UNK mph
May 24, 2020
9:29 AM UTC
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: A ROUGHLY 6 INCH DIAMETER TREE BRANCH WAS BROKEN OFF A TREE. REPORT TAKEN FROM SOCIAL MEDIA... AND TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 3 NNW Sioux City, IA
64 mph
Jun 16, 2014
9:48 PM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused tree damage. The winds were accompanied by small hail.
NWS Wind Report Location: .51 W Leeds, IA
64 mph
Aug 28, 2011
9:26 AM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused tree and power line damage.
NWS Wind Report Location: 1.23 NW Sioux City, IA
64 mph
Aug 28, 2011
9:21 AM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused tree damage, including at least one tree blown down onto a power line.
NWS Wind Report Location: 2.46 NW Leeds, IA
70 mph
Aug 8, 2010
6:00 PM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused widespread tree damage, including several large trees and numerous branches blown down. Some of the tree debris blocked roads and caused minor damage to homes. The winds also blew down power lines, causing a power outage, and blew part of a freight train off its tracks.
NWS Wind Report Location: 1.02 W Springdale, IA
60 mph
Aug 27, 2008
9:15 PM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused tree damage, including several trees blown down. The winds also blew down a chimney.
NWS Wind Report Location: 1.02 W Leeds, IA
93 mph
Jul 20, 2008
11:28 PM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused widespread damage in and near Sioux City. Tree damage included large trees blown down, blocking several roads. A few vehicles were destroyed and numerous vehicles damaged by falling trees and tree debris. Falling trees also damaged several residences and garages, causing one known injury. The winds lifted a three car garage off its foundation, and overturned it onto a nearby pasture. One large tree split an occupied trailer in the middle, missing residents who were sleeping at both ends. Numerous power lines and poles were blown down or broken, leaving an estimated 19,000 customers without power, several thousand of which were still without power 24 hours later. Numerous buildings, especially residences, sustained roof damage, especially to shingles. The winds damaged or blew down several signs, damaged fences, and blew down a large awning that sheltered gasoline pumps at a convenience store. The winds flattened crops near the city, but the amount of crop damage was not known, especially since crops were expected to partially recover.
NWS Wind Report Location: 2.5 NW Sioux City, IA
70 mph
Jul 19, 2008
6:15 PM CST-6
Wind report for ZIP 51104
Woodbury County · 31,632 Homes in County
Wind Report Description: Thunderstorm winds caused tree damage, including a 3 foot diameter tree blown down into a street.
NWS Wind Report Location: 2.55 W Leeds, IA
Showing 11 of 11
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 51104

1 reports
F1 category
Aug 8, 1969
8:25 PM CST
Tornado report for ZIP 51104
Woodbury County · 31,632 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IA
Showing 1 of 1
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 51104 on the Interactive Map

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NWS Storm Reports & Census Data

U.S. Census Data · ZIP Code

ZIP 51104 area census snapshot

People & households
Population22,792
Households8,679
Housing units9,119
Income
Median household income$74,984
$100k+ households44.1%
$150k+ households20.7%
Housing stock
Single-family detached6,574
Attached single-family323
Small multifamily887
Large multifamily1,279
Mobile homes18
Housing mix
Single-family share72.1%
Attached-home share3.5%
Multifamily share23.8%
Mobile-home share0.2%
Ownership & occupancy
Owner-occupied5,616
Renter-occupied3,063
Vacant units440
Home value & age
Median home value$193,000
Owner homes $300k+15.1%
Owner homes $500k+2.0%
Owner homes $750k+0.5%
Median year built1958
Older-home share80.6%
Vehicle context
Households with cars8,281
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 51104 have on record?

Our records show 4 hail, 11 wind, and 1 tornado reports in and near ZIP 51104, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on June 2, 2026.

What is the largest hail ever reported in ZIP 51104?

The largest hail size in these storm-report records in and near ZIP 51104 is 1.75″. It was reported near Sioux City, IA on April 26, 1975.

A storm report showed up near my home in ZIP 51104 — 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 51104 and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in ZIP 51104 — 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 51104 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in ZIP 51104 — 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 51104 address?

Use the address search to pull a free address-level hail report for any property in ZIP 51104 — 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 51104, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 51104, 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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