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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 11, 2011

Public hail, wind, and tornado reports across the United States on August 11, 2011 from August 11, 2011 through August 11, 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
89
Tornado Reports
8
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 11, 2011 · 2011–present Updated  Daily · last Aug 11, 2011

NWS Hail Reports on August 11, 2011

68 reports
Free hail report for your home →
1.00″ hail
Aug 11, 2011
11:27 PM MST-7
Hail report for August 11, 2011
Sheridan County · 2,316 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.38 N Gordon, NE
1.00″ hail
Aug 11, 2011
11:40 PM CST-6
Hail report for August 11, 2011
Blaine County · 241 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 N Brewster, NE
0.75″ hail
Aug 11, 2011
11:18 PM CST-6
Hail report for August 11, 2011
Valley County · 1,816 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 7 SW Ord, NE
1.75″ hail
Aug 11, 2011
11:00 PM CST-6
Hail report for August 11, 2011
Blaine County · 241 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5.14 W Brewster, NE
1.00″ hail
Aug 11, 2011
10:30 PM CST-6
Hail report for August 11, 2011
Thomas County · 346 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 11.07 N Halsey, NE
1.00″ hail
Aug 11, 2011
10:00 PM CST-6
Hail report for August 11, 2011
Cherry County · 2,397 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5.35 SE Brownlee, NE
1.25″ hail
Aug 11, 2011
9:40 PM CST-6
Hail report for August 11, 2011
Blaine County · 241 Homes in County
Hail Report Description: The hail fell along State Highway 91 at mile marker 3.
NWS Hail Report Location: 3.86 ENE Dunning, NE
1.25″ hail
Aug 11, 2011
9:02 PM CST-6
Hail report for August 11, 2011
Blaine County · 241 Homes in County
Hail Report Description: The observer noted that winds were from the south and rapidly switched to the north as the storm passed.
NWS Hail Report Location: 1.54 E Purdum, NE
1.00″ hail
Aug 11, 2011
7:20 PM MST-7
Hail report for August 11, 2011
Harding County · 512 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Buffalo, SD
1.75″ hail
Aug 11, 2011
8:10 PM CST-6
Hail report for August 11, 2011
Cherry County · 2,397 Homes in County
Hail Report Description: Quarter to golf ball size hail fell, while 2.45 inches of rain was also recorded as the thunderstorm passed.
NWS Hail Report Location: 11.78 E Brownlee, NE
2.50″ hail
Aug 11, 2011
6:40 PM MST-7
Hail report for August 11, 2011
Chase County · 1,606 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 10.14 ENE Lamar, NE
2.75″ hail
Aug 11, 2011
7:35 PM CST-6
Hail report for August 11, 2011
Cherry County · 2,397 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 12.28 NNE Brownlee, NE
1.50″ hail
Aug 11, 2011
6:34 PM MST-7
Hail report for August 11, 2011
Phillips County · 1,786 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4.25 E Paoli, CO
1.50″ hail
Aug 11, 2011
6:34 PM MST-7
Hail report for August 11, 2011
Phillips County · 1,786 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4.25 E Paoli, CO
1.00″ hail
Aug 11, 2011
6:30 PM MST-7
Hail report for August 11, 2011
Carter County · 571 Homes in County
Hail Report Description: Winds estimated at 50-60 mph were also reported.
NWS Hail Report Location: 13.68 W Alzada, MT
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 11, 2011

89 reports
Free hail report + wind check →
60 mph
Aug 11, 2011
7:35 PM MST-7
Wind report for August 11, 2011
Butte County · 2,871 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph.
NWS Wind Report Location: .74 SSE Belle Fourche Reservoir, SD
60 mph
Aug 11, 2011
8:00 PM CST-6
Wind report for August 11, 2011
Lubbock County · 89,558 Homes in County
Wind Report Description: Local broadcast and print media reported power lines down within the city of Lubbock.
NWS Wind Report Location: 4 ESE Reese Afb, TX
63 mph
Aug 11, 2011
7:00 PM MST-7
Wind report for August 11, 2011
Graham County · 10,406 Homes in County
Wind Report Description: Thunderstorm wind gusts over 60 mph resulted in minor damage in Fort Thomas. Several truck trailers were blown through yards resulting in a few outbuildings being destroyed. A tool shed was also severely damaged and a few small trees were downed.
NWS Wind Report Location: .88 NE Ft Thomas, AZ
60 mph
Aug 11, 2011
6:55 PM MST-7
Wind report for August 11, 2011
Crook County · 2,729 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph.
NWS Wind Report Location: 2 SE Colony, WY
58 mph
Aug 11, 2011
8:35 PM EST-5
Wind report for August 11, 2011
Marion County · 8,057 Homes in County
Wind Report Description: A tree was reported down across Highway 9.
NWS Wind Report Location: .87 NNE Gresham, SC
60 mph
Aug 11, 2011
6:15 PM MST-7
Wind report for August 11, 2011
Carter County · 571 Homes in County
Wind Report Description: An estimated wind gust of 60 mph was reported. The strong winds broke twigs and snapped 2 inch diameter branches off of trees.
NWS Wind Report Location: .69 N Boyes, MT
60 mph
Aug 11, 2011
6:06 PM MST-7
Wind report for August 11, 2011
Crook County · 2,729 Homes in County
Wind Report Description: A spotter reported 60 mph wind gusts.
NWS Wind Report Location: 4 W New Haven, WY
60 mph
Aug 11, 2011
7:05 PM CST-6
Wind report for August 11, 2011
Hutchinson County · 2,810 Homes in County
Wind Report Description: Thunderstorm winds caused tree damage, including several branches blown down. The winds were accompanied by heavy rain and small hail.
NWS Wind Report Location: .69 N Menno, SD
70 mph
Aug 11, 2011
6:05 PM MST-7
Wind report for August 11, 2011
Bent County · 1,728 Homes in County
Wind Report Description: Several trees were uprooted at the John Martin Reservoir.
NWS Wind Report Location: 4.7 SW Hasty, CO
70 mph
Aug 11, 2011
7:05 PM CST-6
Wind report for August 11, 2011
Hutchinson County · 2,810 Homes in County
Wind Report Description: Thunderstorm winds blew down trees and power lines in Freeman, causing a power outage. The winds also caused minor roof damage to several structures. More substantial damage was caused to a few homes, mainly roofs, by falling trees and large limbs. Fallen trees and tree debris blocked some roads in town.
NWS Wind Report Location: N Freeman, SD
58 mph
Aug 11, 2011
8:00 PM EST-5
Wind report for August 11, 2011
Marion County · 8,057 Homes in County
Wind Report Description: A tree was reported down near the intersection of Antioch Church Road and Highway 38. The time was estimated based on radar data.
NWS Wind Report Location: 1.35 ENE Sellers, SC
60 mph
Aug 11, 2011
7:00 PM CST-6
Wind report for August 11, 2011
Keya Paha County · 445 Homes in County
Wind Report Description: Thunderstorm wind gusts blew down several tree limbs up to 10 inches in diameter.
NWS Wind Report Location: .51 E Burton, NE
60 mph
Aug 11, 2011
5:52 PM MST-7
Wind report for August 11, 2011
Campbell County · 11,526 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph.
NWS Wind Report Location: 5.22 NNW Rockypoint, WY
60 mph
Aug 11, 2011
5:45 PM MST-7
Wind report for August 11, 2011
Powder River County · 750 Homes in County
Wind Report Description: A wind gust estimated at 60 mph was reported in Broadus.
NWS Wind Report Location: .84 SE Broadus, MT
70 mph
Aug 11, 2011
6:40 PM CST-6
Wind report for August 11, 2011
Davison County · 6,105 Homes in County
Wind Report Description: Thunderstorm winds blew down power lines and caused tree damage, including several trees blown down.
NWS Wind Report Location: .85 NW Mitchell, SD
Showing 15 of 89
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 11, 2011

8 reports
EF0 category
Aug 11, 2011
8:53 PM CST-6
Tornado report for August 11, 2011
Thomas County · 346 Homes in County
Tornado Report Description: A tornado touched down one mile west northwest of Purdum and caused damage to trees and power lines. Large limbs from elm trees were snapped off and displaced up to 300 feet to the south. Also, four power poles on the south side of the road were snapped off and 250 feet of barbed wire fencing was damaged.
NWS Tornado Report Location: 12.24 NNE Halsey, NE
EF0 category
Aug 11, 2011
7:54 PM CST-6
Tornado report for August 11, 2011
Brown County · 1,356 Homes in County
Tornado Report Description: A tornado touched down and traveled southeast about one mile, crossed a road and moved another two miles before lifting. Two trees were twisted off close to the point of touch down, with no additional damage noted. The maximum wind speed was 75 m.p.h., and the tornado was rated a EF0.
NWS Tornado Report Location: 10.36 S Johnstown, NE
EF0 category
Aug 11, 2011
7:22 PM CST-6
Tornado report for August 11, 2011
Brown County · 1,356 Homes in County
Tornado Report Description: A tornado briefly touched down five miles north of Johnstown. No damage occurred from this tornado.
NWS Tornado Report Location: 4.86 N Johnstown, NE
EF3 category
Aug 11, 2011
7:05 PM CST-6
Tornado report for August 11, 2011
Cherry County · 2,397 Homes in County
Tornado Report Description: A tornado developed five miles south-southeast of Wood Lake and traveled to the south. It was on the ground for approximately 20 minutes and was up to a maximum of a half mile wide with maximum winds of 140 m.p.h. The tornado caused damage to two tree groves. One tree was debarked, uprooted, and moved while several other trees were uprooted. Additionally, a windmill was destroyed and another three were damaged; a steel culvert from Plum Creek washed out and was broken and displaced three-quarters a mile downstream. Also, two miles of barb wire fencing was destroyed.
NWS Tornado Report Location: 4.72 SSE Wood Lake, NE
EF1 category
Aug 11, 2011
7:00 PM CST-6
Tornado report for August 11, 2011
Cherry County · 2,397 Homes in County
Tornado Report Description: The tornado destroyed a 12 foot by 16 foot storage building and rolled a metal calving shed over 300 feet. Three large hay bails were rolled up an incline and damaged fencing and a swing set. A detached garage door was also damaged and the chimney was torn off of the house.
NWS Tornado Report Location: 1.67 WNW Wood Lake, NE
EF0 category
Aug 11, 2011
6:58 PM CST-6
Tornado report for August 11, 2011
Brown County · 1,356 Homes in County
Tornado Report Description: A tornado briefly touched down in an open field eight miles north-northwest of Ainsworth. No damage occurred from this tornado and it was rated an EF0.
NWS Tornado Report Location: 6.31 NNE (Anw)Ainsworth Muni, NE
EF0 category
Aug 11, 2011
6:49 PM CST-6
Tornado report for August 11, 2011
Cherry County · 2,397 Homes in County
Tornado Report Description: The tornado briefly touched down with no damage being observed and was rated as an EF0. The spotter indicated the condensation funnel did not extend completely from the funnel to the ground, but debris was seen flying under the funnel.
NWS Tornado Report Location: 1.67 WNW Wood Lake, NE
EF0 category
Aug 11, 2011
2:00 PM EST-5
Tornado report for August 11, 2011
Marquette County · 23,971 Homes in County
Tornado Report Description: A waterspout was observed for 15 to 20 seconds near the north shore of the Dead River Basin.
NWS Tornado Report Location: 5.28 NW (Mqt)Marquette Co Ar, MI
Showing 8 of 8
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 11, 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 11, 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 11, 2011?

Our records show 68 hail, 89 wind, and 8 tornado reports on August 11, 2011, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 11, 2011.

What was the largest hail reported on August 11, 2011?

The largest hail size in these storm-report records on August 11, 2011 is 2.75″, reported near Milesville, SD.

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 11, 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 11, 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 11, 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 11, 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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