ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Provo, UT • Logan, UT • Ogden, UT • Salt Lake City, UT      
HailGeeks
NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports in September 1971

Public hail, wind, and tornado reports across the United States in September 1971 from September 1, 1971 through September 30, 1971, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Pick any date to see hail, wind and tornado public reports for that day — e.g. September 18, 2026.
Hail Reports
14
Wind Reports
32
Tornado Reports
54
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · September 1971 · 1971–present Updated  Daily · last Sep 30, 1971

NWS Hail Reports in September 1971

14 reports
Free hail report for your home →
1.00″ hail
Sep 29, 1971
9:40 PM CST
Hail report for September 1971
Dakota County · 103,139 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, MN
1.00″ hail
Sep 29, 1971
9:00 AM CST
Hail report for September 1971
Sarpy County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, NE
1.75″ hail
Sep 23, 1971
12:40 PM CST
Hail report for September 1971
El Paso County · 217,837 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, TX
2.50″ hail
Sep 17, 1971
6:00 PM CST
Hail report for September 1971
Gila County · 23,525 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, AZ
1.00″ hail
Sep 11, 1971
6:30 AM CST
Hail report for September 1971
Lawrence County · 16,047 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IN
UNK hail
Sep 11, 1971
12:00 AM CST
Hail report for September 1971
Adams County · 22,919 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IL
1.50″ hail
Sep 9, 1971
1:00 PM CST
Hail report for September 1971
Dubuque County · 30,447 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IA
1.75″ hail
Sep 6, 1971
4:15 PM CST
Hail report for September 1971
Grady County · 18,356 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, OK
0.75″ hail
Sep 6, 1971
3:20 PM CST
Hail report for September 1971
Oklahoma County · 247,374 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, OK
1.75″ hail
Sep 5, 1971
7:00 PM CST
Hail report for September 1971
Cottle County · 840 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, TX
1.75″ hail
Sep 5, 1971
6:58 PM CST
Hail report for September 1971
Okmulgee County · 12,441 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, OK
1.75″ hail
Sep 5, 1971
4:00 PM CST
Hail report for September 1971
Creek County · 22,466 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, OK
0.87″ hail
Sep 4, 1971
8:30 AM CST
Hail report for September 1971
Montgomery County · 4,185 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, IA
1.75″ hail
Sep 1, 1971
4:40 PM CST
Hail report for September 1971
Pima County · 284,034 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, AZ
Showing 14 of 14
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.

NWS Wind Reports in September 1971

30 reports
Free hail report + wind check →
60 mph
Sep 30, 1971
5:30 PM CST
Wind report for September 1971
Lincoln County · 17,322 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, SD
UNK mph
Sep 28, 1971
8:37 PM CST
Wind report for September 1971
Grand Traverse County · 33,647 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, MI
UNK mph
Sep 28, 1971
4:35 PM CST
Wind report for September 1971
Marathon County · 45,449 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, WI
64 mph
Sep 18, 1971
4:16 PM CST
Wind report for September 1971
Pima County · 284,034 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, AZ
UNK mph
Sep 16, 1971
11:45 PM CST
Wind report for September 1971
Escambia County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, FL
63 mph
Sep 16, 1971
10:00 PM CST
Wind report for September 1971
Santa Rosa County · 62,767 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, FL
UNK mph
Sep 16, 1971
2:01 PM CST
Wind report for September 1971
Harrison County · 60,860 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, MS
UNK mph
Sep 16, 1971
1:00 PM CST
Wind report for September 1971
Sullivan County · 53,253 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, TN
UNK mph
Sep 16, 1971
12:00 PM CST
Wind report for September 1971
Cambria County · 47,868 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
69 mph
Sep 10, 1971
10:00 PM CST
Wind report for September 1971
Nueces County · 100,540 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, TX
UNK mph
Sep 7, 1971
5:40 PM CST
Wind report for September 1971
Minnehaha County · 51,798 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, SD
60 mph
Sep 6, 1971
1:05 PM CST
Wind report for September 1971
Hillsborough County · 352,225 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, FL
64 mph
Sep 5, 1971
6:58 PM CST
Wind report for September 1971
Okmulgee County · 12,441 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, OK
UNK mph
Sep 5, 1971
5:30 PM CST
Wind report for September 1971
Greene County · 97,936 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, MO
UNK mph
Sep 5, 1971
4:00 PM CST
Wind report for September 1971
Ionia County · 18,686 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, MI
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.

NWS Tornado Reports in September 1971

30 reports
F3 category
Sep 28, 1971
5:20 PM CST
Tornado report for September 1971
Marinette County · 23,369 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
5:00 PM CST
Tornado report for September 1971
Oconto County · 19,644 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
4:10 PM CST
Tornado report for September 1971
Langlade County · 9,931 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
4:05 PM CST
Tornado report for September 1971
Marathon County · 45,449 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
4:00 PM CST
Tornado report for September 1971
Marathon County · 45,449 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
3:13 PM CST
Tornado report for September 1971
Clark County · 12,201 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
3:01 PM CST
Tornado report for September 1971
Clark County · 12,201 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F3 category
Sep 28, 1971
2:15 PM CST
Tornado report for September 1971
Chippewa County · 21,965 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F2 category
Sep 28, 1971
1:15 PM CST
Tornado report for September 1971
Dunn County · 12,317 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, WI
F1 category
Sep 24, 1971
5:30 PM CST
Tornado report for September 1971
Duval County · 3,732 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, TX
F2 category
Sep 19, 1971
3:00 PM CST
Tornado report for September 1971
Tangipahoa Parish · 38,903 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, LA
F1 category
Sep 17, 1971
4:00 PM CST
Tornado report for September 1971
Lincoln County · 11,324 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NM
F0 category
Sep 17, 1971
3:00 PM CST
Tornado report for September 1971
Aitkin County · 11,832 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, MN
F3 category
Sep 17, 1971
12:35 AM CST
Tornado report for September 1971
Coffee County · 17,321 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, AL
F1 category
Sep 16, 1971
8:00 PM CST
Tornado report for September 1971
Sierra County · 3,783 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, NM
Showing 15 of 30
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 September 1971 on the Interactive Map

Report type
Hail
Wind
Tornado

Get a free hail report for your address

Address-level hail history. 100% free. No phone or email required.

Look up your address →

Browse NWS Storm Reports by Day in September 1971

September 30, 1971 1
Hail, wind & tornado reports
September 29, 1971 2
Hail, wind & tornado reports
September 28, 1971 11
Hail, wind & tornado reports
September 24, 1971 1
Hail, wind & tornado reports
September 23, 1971 1
Hail, wind & tornado reports
September 19, 1971 1
Hail, wind & tornado reports
September 18, 1971 1
Hail, wind & tornado reports
September 17, 1971 4
Hail, wind & tornado reports
September 16, 1971 23
Hail, wind & tornado reports
September 14, 1971 1
Hail, wind & tornado reports
September 13, 1971 1
Hail, wind & tornado reports
September 12, 1971 3
Hail, wind & tornado reports
September 11, 1971 5
Hail, wind & tornado reports
September 10, 1971 5
Hail, wind & tornado reports
September 9, 1971 4
Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in September 1971? 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 storm reports were recorded in September 1971?

Our records show 14 hail, 32 wind, and 54 tornado reports in September 1971, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 30, 1971.

What was the largest hail reported in September 1971?

The largest hail size in these storm-report records in September 1971 is 2.50″, reported near Young, AZ.

Some reports show UNK instead of a wind speed or tornado rating — what does that mean?

Wind reports come three ways: measured from an instrument, estimated from the damage observed, or UNK when no speed was recorded. Tornadoes show UNK until the National Weather Service finishes a damage survey and assigns an EF rating. UNK simply means that value was not available when the report was filed.

A report appeared near my home in September 1971 — is my roof damaged?

Not necessarily. A storm report shows that hail, wind, or a tornado was observed nearby, not that any specific home was hit. To find out whether your property was affected, check an address-level hail report, and if it looks significant, ask a local pro about a Remote Hail Inspection before scheduling roof work.

I am buying or selling a home — how do these in September 1971 reports help?

If a storm passed through, a roof or exterior may have damage that is hard to see, or a recent repair may trace back to it. Buyers can ask better questions before closing, and sellers can document the home condition up front — both starting from the property address rather than a whole region.

How do I check what happened at a specific address in September 1971?

Use the address search to pull a free address-level hail report for any property — 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 September 1971 across the United States, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported, 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.

Free Hail Report By Address

Check Your Address in Seconds

Free hail report for any address in the contiguous U.S.

Get a Free Hail Report

100% free. No phone or email required.