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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on September 21, 2021

Public hail, wind, and tornado reports across the United States on September 21, 2021 from September 21, 2021 through September 21, 2021, 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
1
Wind Reports
31
Tornado Reports
1
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · September 21, 2021 · 2021–present Updated  Daily · last Sep 21, 2021

NWS Hail Reports on September 21, 2021

1 reports
Free hail report for your home →
1.75″ hail
Sep 21, 2021
7:10 PM UTC
Hail report for September 21, 2021
Drew County · 4,795 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2 NNW Killin, AR
Showing 1 of 1
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 on September 21, 2021

31 reports
Free hail report + wind check →
UNK mph
Sep 21, 2021
6:50 PM UTC
Wind report for September 21, 2021
Lee County · 235,829 Homes in County
Wind Report Description: BROADCAST MEDIA RELAYED VIEWER REPORT/PHOTOS OF PALM TREE DAMAGE IN NORTH FORT MYERS. TIME APPROXIMATED FROM RADAR.
NWS Wind Report Location: 2 SSE Suncoast Estates, FL
UNK mph
Sep 21, 2021
6:19 PM UTC
Wind report for September 21, 2021
Lincoln County · 2,849 Homes in County
Wind Report Description: TREE LIMBS WERE BLOWN DOWN IN STAR CITY.
NWS Wind Report Location: Star City, AR
UNK mph
Sep 21, 2021
5:41 PM UTC
Wind report for September 21, 2021
Jefferson County · 21,773 Homes in County
Wind Report Description: TREES AND POWER LINES WERE BLOWN DOWN.
NWS Wind Report Location: 2 N Pinebergen, AR
UNK mph
Sep 21, 2021
5:36 PM UTC
Wind report for September 21, 2021
Jefferson County · 21,773 Homes in County
Wind Report Description: HOMES WERE DAMAGED.
NWS Wind Report Location: 2 WSW West End, AR
UNK mph
Sep 21, 2021
6:45 AM UTC
Wind report for September 21, 2021
Benton County · 88,214 Homes in County
Wind Report Description: NUMEROUS TREE BRANCHES BROKEN... WITH THE LARGEST BEING UP TO 5 INCHES IN DIAMETER. NEAR THE INTERSECTION OF OAK STREET AND 13TH STREET IN ROGERS. REPORT RELAYED VIA TWITTER. TIME ESTIMATED VIA RADAR.
NWS Wind Report Location: 1 WSW Rogers, AR
UNK mph
Sep 21, 2021
6:30 AM UTC
Wind report for September 21, 2021
Benton County · 88,214 Homes in County
Wind Report Description: NUMEROUS TREES DOWNED IN SILOAM SPRINGS. TIME ESTIMATED.
NWS Wind Report Location: Siloam Springs, AR
UNK mph
Sep 21, 2021
4:15 AM UTC
Wind report for September 21, 2021
McDonald County · 6,314 Homes in County
Wind Report Description: SEVERAL TREES AND LIMBS DOWN ACROSS NORTHERN MCDONALD COUNTY NEAR AND NORTH OF ANDERSON. TIME ESTIMATED.
NWS Wind Report Location: 4 N Anderson, MO
UNK mph
Sep 21, 2021
4:00 AM UTC
Wind report for September 21, 2021
Pike County · 5,700 Homes in County
Wind Report Description: TREE BLOWN DOWN ONTO CAR. REPORTED BY BOWLING GREEN PD. TIME ESTIMATED BY RADAR.
NWS Wind Report Location: 2 N Bowling Green, MO
UNK mph
Sep 21, 2021
3:45 AM UTC
Wind report for September 21, 2021
Lawrence County · 12,673 Homes in County
Wind Report Description: LARGE TREE SNAPPED NEAR SYCAMORE AND 9TH STREET IN MONETT. THIS WAS LIKELY FROM OUTFLOW WINDS AHEAD OF STORMS. MAXIMUM WIND GUST FROM MONETT AWOS WAS 36 MPH. TIME ESTIMATED.
NWS Wind Report Location: 1 NE Monett, MO
UNK mph
Sep 21, 2021
3:40 AM UTC
Wind report for September 21, 2021
Newton County · 19,006 Homes in County
Wind Report Description: TREE/LIMB DOWN IN THE ROADWAY. STATE HIGHWAY CC AND NORWAY ROAD. TIME ESTIMATED.
NWS Wind Report Location: 4 S Racine, MO
UNK mph
Sep 21, 2021
3:30 AM UTC
Wind report for September 21, 2021
Newton County · 19,006 Homes in County
Wind Report Description: LARGE TREE BRANCH BROKE OFF AND STRUCK A ROOF OF A HOME NEAR HIGHWAY 86 AND GOLDFINCH ROAD. TIME ESTIMATED.
NWS Wind Report Location: 3 E Racine, MO
UNK mph
Sep 21, 2021
3:20 AM UTC
Wind report for September 21, 2021
Newton County · 19,006 Homes in County
Wind Report Description: LARGE TREE DOWN ON HOME NEAR RACINE. TIME WAS ESTIMATED VIA RADAR.
NWS Wind Report Location: Racine, MO
UNK mph
Sep 21, 2021
3:15 AM UTC
Wind report for September 21, 2021
Newton County · 19,006 Homes in County
Wind Report Description: TREE/LIMB DOWN IN ROADWAY AT ELAND ROAD AND DUTCH ELM ROAD. TIME ESTIMATED.
NWS Wind Report Location: 2 S Redings Mill, MO
UNK mph
Sep 21, 2021
3:00 AM UTC
Wind report for September 21, 2021
Columbia County · 20,591 Homes in County
Wind Report Description: TREE DOWN IN VILLAGE.
NWS Wind Report Location: Poynette, WI
UNK mph
Sep 21, 2021
2:45 AM UTC
Wind report for September 21, 2021
Dane County · 129,925 Homes in County
Wind Report Description: REPORT OF A LARGE POLE BARN COLLAPSED IN TOWN OF DANE. DAMAGE REPORT CAME IN AT 10:10 PM BUT TIME STILL UNCERTAIN.
NWS Wind Report Location: Dane, WI
Showing 15 of 31
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 on September 21, 2021

1 reports
UNK category
Sep 21, 2021
1:56 AM UTC
Tornado report for September 21, 2021
St. Tammany Parish · 86,959 Homes in County
Tornado Report Description: A BRIEF TORNADO TOUCHED DOWN IN EDEN ISLE ON MARINA DR WHERE SEVERAL HOUSES SUSTAINED ROOF AND FENCE DAMAGE. UPROOTED TREES AND ADDITIONAL PROPERTY DAMAGE WERE CAPTURED BY NOAA AERIAL IMAGERY IN THE TORNADO S PATH ALONG CONSTELLATION DR... CHARLES CT... AND INTREPID DR... AND EDEN ISLES DR. THE TORNADO MAY HAVE CONTINUED BEYOND THIS POINT... BUT AERIAL IMAGERY WAS UNAVAILABLE TO CONFIRM THIS.
NWS Tornado Report Location: 1 SSE Eden Isle, LA
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 on September 21, 2021 on the Interactive Map

Report type
Hail
Wind
Tornado

Get a Remote Hail Inspection

Not sure if hail may have affected your home on September 21, 2021? 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 on September 21, 2021?

Our records show 1 hail, 31 wind, and 1 tornado reports on September 21, 2021, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 21, 2021.

What was the largest hail reported on September 21, 2021?

The largest hail size in these storm-report records on September 21, 2021 is 1.75″, reported near Killin, AR.

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 on September 21, 2021 — 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 on September 21, 2021 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 on September 21, 2021?

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 on September 21, 2021 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.

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