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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 21, 2011

Public hail, wind, and tornado reports across the United States on August 21, 2011 from August 21, 2011 through August 21, 2011, 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
68
Wind Reports
197
Tornado Reports
3
Max Hail Size
2.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 21, 2011 · 2011–present Updated  Daily · last Aug 21, 2011

NWS Hail Reports on August 21, 2011

68 reports
Free hail report for your home →
1.00″ hail
Aug 21, 2011
9:20 PM MST-7
Hail report for August 21, 2011
Arthur County · 206 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8.27 E Arthur, NE
1.00″ hail
Aug 21, 2011
10:10 PM CST-6
Hail report for August 21, 2011
Cherry County · 2,397 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.45 N Valentine, NE
0.75″ hail
Aug 21, 2011
8:26 PM EST-5
Hail report for August 21, 2011
Meriwether County · 6,686 Homes in County
Hail Report Description: The Meriwether County Emergency Management Director relayed a report of penny-sized hail from the Rocky Mount area.
NWS Hail Report Location: 1 N Rocky Mt, GA
1.00″ hail
Aug 21, 2011
8:05 PM EST-5
Hail report for August 21, 2011
Chesterfield County · 11,077 Homes in County
Hail Report Description: Mike Yaborough, spotter in Pageland, relayed a public report of quarter size hail in Pageland at 905pm received via a police scanner of the Pageland Ciey Police Dept.
NWS Hail Report Location: .57 W Pageland, SC
0.75″ hail
Aug 21, 2011
7:43 PM EST-5
Hail report for August 21, 2011
Fulton County · 231,538 Homes in County
Hail Report Description: The public observed penny-sized hail just northwest of Buckhead on the north side of Atlanta.
NWS Hail Report Location: 6.5 NNW Atlanta, GA
1.00″ hail
Aug 21, 2011
7:28 PM EST-5
Hail report for August 21, 2011
Lee County · 18,353 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.15 NNE Swann, NC
1.00″ hail
Aug 21, 2011
6:20 PM EST-5
Hail report for August 21, 2011
Aroostook County · 28,443 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .84 SE (Car)Caribou Arpt, ME
1.25″ hail
Aug 21, 2011
6:05 PM EST-5
Hail report for August 21, 2011
Edgecombe County · 14,362 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.78 SW Rocky Mt, NC
0.75″ hail
Aug 21, 2011
6:00 PM EST-5
Hail report for August 21, 2011
Delaware County · 22,811 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Hamden, NY
0.75″ hail
Aug 21, 2011
5:53 PM EST-5
Hail report for August 21, 2011
Delaware County · 22,811 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Hamden, NY
1.75″ hail
Aug 21, 2011
5:50 PM EST-5
Hail report for August 21, 2011
Rutland County · 23,171 Homes in County
Hail Report Description: Golfball size hail reported.
NWS Hail Report Location: .85 SW South Wallingford, VT
1.00″ hail
Aug 21, 2011
5:45 PM EST-5
Hail report for August 21, 2011
Delaware County · 22,811 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Walton, NY
1.25″ hail
Aug 21, 2011
5:41 PM EST-5
Hail report for August 21, 2011
Nash County · 28,508 Homes in County
Hail Report Description: Hail, ranging from the size of quarters to the size of half dollars, fell along a swath from about five miles north of Sharpsburg to inside the city of Sharpsburg.
NWS Hail Report Location: 1.12 W Easonburg, NC
0.88″ hail
Aug 21, 2011
5:30 PM EST-5
Hail report for August 21, 2011
Berkshire County · 45,896 Homes in County
Hail Report Description: Nickel size hail was reported during a thunderstorm in Richmond.
NWS Hail Report Location: .69 ENE Richmond Furnace, MA
1.00″ hail
Aug 21, 2011
5:12 PM EST-5
Hail report for August 21, 2011
Franklin County · 17,079 Homes in County
Hail Report Description: Quarter size hail reported in Fletcher.
NWS Hail Report Location: .85 SE Binghamville, VT
Showing 15 of 68
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 August 21, 2011

197 reports
Free hail report + wind check →
60 mph
Aug 21, 2011
9:20 PM MST-7
Wind report for August 21, 2011
Arthur County · 206 Homes in County
Wind Report Description: A large elm tree was blown down by thunderstorm winds.
NWS Wind Report Location: 8.27 E Arthur, NE
58 mph
Aug 21, 2011
10:46 PM EST-5
Wind report for August 21, 2011
Duplin County · 14,264 Homes in County
Wind Report Description: Power line blown down on Dark Branch Road east of Kenansville.
NWS Wind Report Location: 3.24 WNW Sarecta, NC
63 mph
Aug 21, 2011
9:50 PM EST-5
Wind report for August 21, 2011
Rockcastle County · 4,819 Homes in County
Wind Report Description: Several trees were blown down east of Boone, one of which landed on a vacant trailer.
NWS Wind Report Location: 2 E Boone, KY
58 mph
Aug 21, 2011
9:42 PM EST-5
Wind report for August 21, 2011
Sampson County · 15,513 Homes in County
Wind Report Description: Numerous trees were blown down along a swath from near Roseboro to near Garland.
NWS Wind Report Location: 1.38 N Roseboro, NC
58 mph
Aug 21, 2011
9:25 PM EST-5
Wind report for August 21, 2011
Knott County · 4,223 Homes in County
Wind Report Description: Several large tree limbs were blown down in Mousie.
NWS Wind Report Location: N Mousie, KY
63 mph
Aug 21, 2011
9:24 PM EST-5
Wind report for August 21, 2011
Chesterfield County · 11,077 Homes in County
Wind Report Description: Sheriff reported trees down near McBee.
NWS Wind Report Location: .57 W Mc Bee, SC
58 mph
Aug 21, 2011
9:15 PM EST-5
Wind report for August 21, 2011
Union County · 75,130 Homes in County
Wind Report Description: A tree was blown down on highway 205 near New Salem.
NWS Wind Report Location: .41 S New Salem, NC
58 mph
Aug 21, 2011
9:15 PM EST-5
Wind report for August 21, 2011
Union County · 75,130 Homes in County
Wind Report Description: A tree was blown down on Ansonville Rd.
NWS Wind Report Location: .53 WSW Hamiltons Xrds, NC
58 mph
Aug 21, 2011
9:12 PM EST-5
Wind report for August 21, 2011
Hart County · 9,040 Homes in County
Wind Report Description: Another round of severe thunderstorms downed multiple trees from the Reed Creek area, across Hartwell and to areas southeast of town.
NWS Wind Report Location: 1.49 SSW Reed Creek, GA
60 mph
Aug 21, 2011
7:10 PM MST-7
Wind report for August 21, 2011
Cochise County · 39,175 Homes in County
Wind Report Description: Thunderstorm winds downed power poles on Central Highway between Latimer Road and Hopkins Road in Elfrida.
NWS Wind Report Location: 2.54 NW Mc Neal, AZ
58 mph
Aug 21, 2011
8:45 PM EST-5
Wind report for August 21, 2011
Marlboro County · 7,450 Homes in County
Wind Report Description: A tree was reported down on Gravel Pit Road. The time was estimated based on radar data.
NWS Wind Report Location: .9 SW Scott, SC
63 mph
Aug 21, 2011
8:42 PM EST-5
Wind report for August 21, 2011
Chesterfield County · 11,077 Homes in County
Wind Report Description: Sheriff reported trees down in Cheraw... some on vehicles and some on homes.
NWS Wind Report Location: 1.79 NW Cheraw, SC
58 mph
Aug 21, 2011
8:33 PM EST-5
Wind report for August 21, 2011
Union County · 75,130 Homes in County
Wind Report Description: Several trees and power lines were blown down.
NWS Wind Report Location: .57 W Indian Trail, NC
60 mph
Aug 21, 2011
8:32 PM EST-5
Wind report for August 21, 2011
Marlboro County · 7,450 Homes in County
Wind Report Description: A large tree was reported down across Highway 9. The time was estimated based on radar data.
NWS Wind Report Location: 1.15 WSW Bennettsville, SC
69 mph
Aug 21, 2011
8:32 PM EST-5
Wind report for August 21, 2011
Chesterfield County · 11,077 Homes in County
Wind Report Description: Emergency Manager reported trees down around the county and in the town of Chesterfield. Some trees fell on vehicles and a few on homes. A garage door was ripped off a building and blown 300 yds away. Street flooding also occurred.
NWS Wind Report Location: N Chesterfield, SC
Showing 15 of 197
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 August 21, 2011

3 reports
EF1 category
Aug 21, 2011
7:45 PM EST-5
Tornado report for August 21, 2011
Grafton County · 31,413 Homes in County
Tornado Report Description: An EF1 tornado touched down about 8:45 pm in the town of Canaan. The tornado touched down west of Abbott Road, the crossed Abbott Road, Grist Mill Road, and tracked parallel to and just southeast of Ball Park Road. From there, it crossed Route 4 and Mirror Lake and lifted off the ground just east of the Canaan transfer station.||The tornado was on the ground for about 2.7 miles and had a maximum damage path width of about 350 yards. The maximum wind gusts were estimated at 95 mph.||The tornado uprooted or snapped several hundred trees along its path. Several buildings were damaged by falling trees and several outbuildings were damaged by the wind. In addition, a sailboat and rowboat were moved by the tornado's winds.
NWS Tornado Report Location: 3.43 NW Grafton Center, NH
EF2 category
Aug 21, 2011
2:25 PM EST-5
Tornado report for August 21, 2011
Cayuga County · 24,758 Homes in County
Tornado Report Description: A tornado moved from Wayne county to Conquest in northern Cayuga county.
NWS Tornado Report Location: 2.7 SSW Spring Lake, NY
EF2 category
Aug 21, 2011
2:15 PM EST-5
Tornado report for August 21, 2011
Wayne County · 31,801 Homes in County
Tornado Report Description: A tornado touched down in Savannah in Wayne County the continued east northeast into Cayuga County.
NWS Tornado Report Location: .37 SW Savannah, NY
Showing 3 of 3
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 August 21, 2011 on the Interactive Map

Report type
Hail
Wind
Tornado

Get a Remote Hail Inspection

Not sure if hail may have affected your home on August 21, 2011? 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 August 21, 2011?

Our records show 68 hail, 197 wind, and 3 tornado reports on August 21, 2011, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 21, 2011.

What was the largest hail reported on August 21, 2011?

The largest hail size in these storm-report records on August 21, 2011 is 2.00″, reported near Lincoln, MI.

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 August 21, 2011 — 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 August 21, 2011 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 August 21, 2011?

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 August 21, 2011 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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