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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports in August 2011

Public hail, wind, and tornado reports across the United States in August 2011 from August 1, 2011 through August 31, 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
1,783
Wind Reports
3,083
Tornado Reports
62
Max Hail Size
4.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 2011 · 2011–present Updated  Daily · last Aug 31, 2011

NWS Hail Reports in August 2011

30 reports
Free hail report for your home →
1.50″ hail
Aug 31, 2011
8:35 PM MST-7
Hail report for August 2011
Hettinger County · 1,189 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 12.58 N Mott, ND
1.00″ hail
Aug 31, 2011
8:20 PM MST-7
Hail report for August 2011
Hettinger County · 1,189 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.18 NW New England, ND
1.75″ hail
Aug 31, 2011
7:40 PM MST-7
Hail report for August 2011
Bowman County · 1,280 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.45 N Rhame, ND
0.75″ hail
Aug 31, 2011
7:25 PM MST-7
Hail report for August 2011
Sheridan County · 1,592 Homes in County
Hail Report Description: Public estimated penny-sized hail stones.
NWS Hail Report Location: 5 S Reserve, MT
1.00″ hail
Aug 31, 2011
7:25 PM MST-7
Hail report for August 2011
McKenzie County · 3,637 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.49 N Fairview, ND
1.75″ hail
Aug 31, 2011
7:25 PM MST-7
Hail report for August 2011
Fallon County · 1,019 Homes in County
Hail Report Description: Hail broke a bedroom window.
NWS Hail Report Location: 12.63 SE Baker Arpt, MT
1.75″ hail
Aug 31, 2011
7:22 PM MST-7
Hail report for August 2011
Slope County · 398 Homes in County
Hail Report Description: The large hail broke windows.
NWS Hail Report Location: 6.24 W Marmarth, ND
1.00″ hail
Aug 31, 2011
7:14 PM MST-7
Hail report for August 2011
Sheridan County · 1,592 Homes in County
Hail Report Description: Storm chaser reported quarter-sized hail mixed with heavy rain.
NWS Hail Report Location: 1 E Reserve, MT
0.75″ hail
Aug 31, 2011
6:35 PM MST-7
Hail report for August 2011
Roosevelt County · 3,116 Homes in County
Hail Report Description: Spotter reported small amounts of penny-sized hail stones.
NWS Hail Report Location: 18.31 E Bredette, MT
0.75″ hail
Aug 31, 2011
6:30 PM MST-7
Hail report for August 2011
McCone County · 859 Homes in County
Hail Report Description: Spotter reported slushy penny-sized stones.
NWS Hail Report Location: 14.89 NNE Vida, MT
0.88″ hail
Aug 31, 2011
6:13 PM MST-7
Hail report for August 2011
Valley County · 2,884 Homes in County
Hail Report Description: Spotter reported penny- to nickel-sized hail stones.
NWS Hail Report Location: 9 SSW Lustre, MT
1.00″ hail
Aug 29, 2011
5:37 PM MST-7
Hail report for August 2011
Lincoln County · 1,866 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8.98 N Genoa, CO
1.25″ hail
Aug 29, 2011
5:30 PM MST-7
Hail report for August 2011
Campbell County · 11,526 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 13 WSW Weston, WY
1.00″ hail
Aug 29, 2011
5:15 PM MST-7
Hail report for August 2011
Campbell County · 11,526 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6.85 WSW Recluse, WY
1.75″ hail
Aug 29, 2011
6:43 PM EST-5
Hail report for August 2011
Pitt County · 39,459 Homes in County
Hail Report Description: Golf ball size hail reported near Highway 43 and Highway 264 near Greenville.
NWS Hail Report Location: 1.49 SSE Greenville, NC
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.

NWS Wind Reports in August 2011

30 reports
Free hail report + wind check →
60 mph
Aug 31, 2011
11:54 PM CST-6
Wind report for August 2011
Wells County · 1,771 Homes in County
Wind Report Description: Small tree limbs were broken.
NWS Wind Report Location: N Harvey, ND
64 mph
Aug 31, 2011
11:13 PM CST-6
Wind report for August 2011
Sheridan County · 679 Homes in County
Wind Report Description: Brief power outages were reported with the strong winds.
NWS Wind Report Location: N Mcclusky, ND
70 mph
Aug 31, 2011
11:00 PM CST-6
Wind report for August 2011
McLean County · 4,726 Homes in County
Wind Report Description: Several trees were snapped or uprooted.
NWS Wind Report Location: 1 N Mercer, ND
60 mph
Aug 31, 2011
10:51 PM CST-6
Wind report for August 2011
Morton County · 10,416 Homes in County
Wind Report Description: Strong winds were reported.
NWS Wind Report Location: 5.07 ENE Sweet Briar, ND
64 mph
Aug 31, 2011
10:50 PM CST-6
Wind report for August 2011
McLean County · 4,726 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1.16 SE Coleharbor, ND
70 mph
Aug 31, 2011
10:20 PM CST-6
Wind report for August 2011
Morton County · 10,416 Homes in County
Wind Report Description: Straight line wind damage occurred near New Salem. A barn roof was destroyed, an auger was tipped over, and debris was thrown into the side of a home.
NWS Wind Report Location: 6.21 NNW Sims, ND
61 mph
Aug 31, 2011
10:20 PM CST-6
Wind report for August 2011
Mercer County · 3,312 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1.57 ESE Hazen, ND
64 mph
Aug 31, 2011
10:10 PM CST-6
Wind report for August 2011
Mountrail County · 2,902 Homes in County
Wind Report Description: Strong winds were reported.
NWS Wind Report Location: 6.07 SE Lostwood, ND
60 mph
Aug 31, 2011
9:00 PM MST-7
Wind report for August 2011
Stark County · 8,960 Homes in County
Wind Report Description: Pea size hail accompanied the strong winds.
NWS Wind Report Location: 2.34 SW Antelope, ND
60 mph
Aug 31, 2011
9:50 PM CST-6
Wind report for August 2011
Mountrail County · 2,902 Homes in County
Wind Report Description: Strong winds were reported.
NWS Wind Report Location: 3.32 NNW Stanley, ND
59 mph
Aug 31, 2011
8:34 PM MST-7
Wind report for August 2011
Natrona County · 26,526 Homes in County
Wind Report Description: A collapsing thunderstorm produced a 59 mph wind gust at Casper/Natrona County International Airport.
NWS Wind Report Location: N (Cpr)Natrona Co Arpt, WY
62 mph
Aug 31, 2011
8:26 PM MST-7
Wind report for August 2011
Stark County · 8,960 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .47 W Taylor, ND
64 mph
Aug 31, 2011
8:07 PM MST-7
Wind report for August 2011
Bowman County · 1,280 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .48 W Scranton, ND
60 mph
Aug 31, 2011
8:04 PM MST-7
Wind report for August 2011
Stark County · 8,960 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .47 E (Dik)Dickinson Muni, ND
58 mph
Aug 31, 2011
7:51 PM MST-7
Wind report for August 2011
Bowman County · 1,280 Homes in County
Wind Report Description: A report of a severe wind gust was received.
NWS Wind Report Location: .48 E Bowman, ND
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 August 2011

30 reports
EF0 category
Aug 29, 2011
4:10 PM MST-7
Tornado report for August 2011
Dawes County · 3,010 Homes in County
Tornado Report Description: A weak tornado briefly touched down in a wooded area just south of King Canyon Road. Produced damage to a tree and windmill.
NWS Tornado Report Location: 5.55 S Chadron, NE
EF0 category
Aug 28, 2011
3:50 AM EST-5
Tornado report for August 2011
Suffolk County · 463,095 Homes in County
Tornado Report Description: Based on a National Weather Service Storm Survey, a weak F0 tornado was confirmed from near Babylon northwest to near Wyandanch in southwest Suffolk County.||The estimated maximum wind gust was 75 mph.||This weak tornado was spawned by a rotating thunderstorm within a spiral rain band rotating around then Hurricane Irene several hours before it made landfall in New York City.
NWS Tornado Report Location: N Babylon, NY
EF0 category
Aug 28, 2011
3:00 AM EST-5
Tornado report for August 2011
Queens County · 172,141 Homes in County
Tornado Report Description: Based on an NWS Storm Survey, a weak F0 tornado was confirmed in Cunningham Park, near the Grand Central Parkway and Clearview Expressway intersection northwest toward the Long Island Expressway.||The estimated maximum wind gust was 85 mph.||This weak tornado was spawned by a rotating thunderstorm within a spiral rain band rotating around then Hurricane Irene several hours before it made landfall in New York City.
NWS Tornado Report Location: .87 NE Hollis, NY
EF0 category
Aug 28, 2011
2:00 AM EST-5
Tornado report for August 2011
Mercer County · 71,470 Homes in County
Tornado Report Description: An EF-0 tornado touched down in Robbinsville Township about 3 a.m. EDT on the 28th. The tornado touched down in a Mercer County Park, crossed Perrineville Road and lifted just southwest of Woods Road. Numerous trees were knocked down, along with several electric poles and wires. Damage was concentrated on the 500 block of Perrineville Road. The estimated path length was six tenths of a mile, the maximum path width was thirty yards and the estimated maximum wind speed was 85 mph.
NWS Tornado Report Location: .7 NW Hightstown, NJ
EF1 category
Aug 27, 2011
5:38 PM EST-5
Tornado report for August 2011
Sussex County · 96,595 Homes in County
Tornado Report Description: An EF1 tornado touched down in the Quakertown area near Lewes during the early evening of the 27th. This tornado was embedded within convective bands associated with Hurricane Irene. About 50 homes were damaged and several vehicles and sheds were either damaged or destroyed. The tornado touched down near the eastern end of Tradewinds Lane, then moved west along Tradewinds Lane, crossed Delaware State Route 269A before lifting at Crab Apple Lane. Numerous trees were uprooted or snapped along this path, and numerous homes experienced shingle damage in the Tradewinds, Donovan Smith, Swanendael Acres and Nassau Station Developments. The most significant damage occurred on Crab Apple Lane where a house sustained substantial roof damage with its rafters exposed. The house's garage was also ripped away.||The tornado path length was estimated at 0.7 miles, its maximum path width was 80 yards and its estimated maximum wind speed was 95 mph. No serious injuries were reported.
NWS Tornado Report Location: .94 NNE Nassau, DE
EF0 category
Aug 27, 2011
10:30 AM EST-5
Tornado report for August 2011
Accomack County · 16,413 Homes in County
Tornado Report Description: Weak tornado (EF0) downed trees and caused minor roof damage.
NWS Tornado Report Location: .79 ENE Chincoteague, VA
EF0 category
Aug 27, 2011
7:49 AM EST-5
Tornado report for August 2011
Virginia Beach city · 104,518 Homes in County
Tornado Report Description: Weak tornado (EF0) severely damaged a home on Sandpiper Road. There was also minor damage to one other home.
NWS Tornado Report Location: 2.24 ENE Sigma, VA
EF2 category
Aug 26, 2011
10:55 PM EST-5
Tornado report for August 2011
Tyrrell County · 1,205 Homes in County
Tornado Report Description: Several manufactured homes were completely destroyed with the metal undercarriages severely mangled and twisted around tree trunks indicating a high end EF2 tornado with estimated winds of 130 mph.
NWS Tornado Report Location: 1.5 E Columbia, NC
EF0 category
Aug 26, 2011
9:12 PM EST-5
Tornado report for August 2011
Washington County · 4,173 Homes in County
Tornado Report Description: A brief EF1 tornado damaged a grain silo and a hardware store.
NWS Tornado Report Location: .32 NNE Scuppernong, NC
EF1 category
Aug 26, 2011
8:12 PM EST-5
Tornado report for August 2011
Beaufort County · 16,077 Homes in County
Tornado Report Description: An EF1 Tornado touched down along Highway 264 and Bible Shore Rd. damaging large Pine trees. A utility trailer was also overturned. The tornado skipped 4.4 miles into Belhaven heavily damaging Edgewood Motors Dealership with two walls blown out.
NWS Tornado Report Location: 1.82 SW Leechville, NC
EF0 category
Aug 26, 2011
12:45 PM MST-7
Tornado report for August 2011
El Paso County · 199,016 Homes in County
Tornado Report Description: A tornado occurred west of Highway 115 in a field. There was no damage.
NWS Tornado Report Location: 2.52 WSW Ft Carson, CO
EF0 category
Aug 25, 2011
5:11 PM EST-5
Tornado report for August 2011
St. Mary's County · 33,775 Homes in County
Tornado Report Description: There was video evidence of a brief tornado on the Patuxent River Airfield.
NWS Tornado Report Location: .68 WNW Patuxent River, MD
EF0 category
Aug 25, 2011
4:58 PM EST-5
Tornado report for August 2011
St. Mary's County · 33,775 Homes in County
Tornado Report Description: There was video evidence of a tornado along with damage to trees and flag poles.
NWS Tornado Report Location: 1.51 SSW Lnrdtwn St Marys Arp, MD
EF0 category
Aug 25, 2011
3:30 PM CST-6
Tornado report for August 2011
Lubbock County · 89,558 Homes in County
Tornado Report Description: A NWS employee reported a weak landspout tornado southwest of Lubbock during the afternoon of the 25th. No damage was reported.
NWS Tornado Report Location: 3.76 E Wolfforth, TX
EF0 category
Aug 25, 2011
12:25 PM CST-6
Tornado report for August 2011
Calhoun County · 7,946 Homes in County
Tornado Report Description: An NWS survey concluded a short lived tornado touched down near Alamo Beach Street and Lee Street in Alamo Beach. Near this point two homes were observed with small portions of their roofs peeled back. Sheet metal was also torn off the side of one of the homes and a window was broken. A third home near the area was observed to have missing shingles. The tornado continued west to a point near F. M. 2717 between Fannin and East Sunrise Streets. At this point, a poorly constructed mobile home with two floors was observed to have significant damage. The top floor was taken off and deposited to the west-southwest. The bottom floor was partially shifted off the blocks but remained upright. A brick facade on the west side of the home collapsed. Maximum winds were estimated to be around 75 mph with a path length of one quarter of a mile and path width of 100 yards.
NWS Tornado Report Location: 1.89 NNW Magnolia Beach, TX
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 August 2011 on the Interactive Map

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Browse NWS Storm Reports by Day in August 2011

August 31, 2011 39
Hail, wind & tornado reports
August 30, 2011 1
Hail, wind & tornado reports
August 29, 2011 67
Hail, wind & tornado reports
August 28, 2011 70
Hail, wind & tornado reports
August 27, 2011 28
Hail, wind & tornado reports
August 26, 2011 23
Hail, wind & tornado reports
August 25, 2011 93
Hail, wind & tornado reports
August 24, 2011 168
Hail, wind & tornado reports
August 23, 2011 80
Hail, wind & tornado reports
August 22, 2011 81
Hail, wind & tornado reports
August 21, 2011 268
Hail, wind & tornado reports
August 20, 2011 129
Hail, wind & tornado reports
August 19, 2011 334
Hail, wind & tornado reports
August 18, 2011 486
Hail, wind & tornado reports
August 17, 2011 27
Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in August 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 in August 2011?

Our records show 1,783 hail, 3,083 wind, and 62 tornado reports in August 2011, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 31, 2011.

What was the largest hail reported in August 2011?

The largest hail size in these storm-report records in August 2011 is 4.50″, reported near N Leavenworth, KS.

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 August 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 in August 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 in August 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 in August 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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