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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 27, 2011

Public hail, wind, and tornado reports across the United States on August 27, 2011 from August 27, 2011 through August 27, 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 19, 2026.
Hail Reports
10
Wind Reports
15
Tornado Reports
3
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 27, 2011 · 2011–present Updated  Daily · last Aug 27, 2011

NWS Hail Reports on August 27, 2011

10 reports
Free hail report for your home →
0.75″ hail
Aug 27, 2011
9:45 PM MST-7
Hail report for August 27, 2011
Roosevelt County · 3,116 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 SE Bainville, MT
1.75″ hail
Aug 27, 2011
9:40 PM MST-7
Hail report for August 27, 2011
Roosevelt County · 3,116 Homes in County
Hail Report Description: Public reported golf ball-sized hail stones.
NWS Hail Report Location: NW Bainville, MT
1.00″ hail
Aug 27, 2011
9:09 PM CST-6
Hail report for August 27, 2011
Divide County · 1,118 Homes in County
Hail Report Description: Strong winds up to 55 miles per hour were also reported.
NWS Hail Report Location: 8.4 N Alkabo, ND
1.50″ hail
Aug 27, 2011
7:50 PM MST-7
Hail report for August 27, 2011
Daniels County · 980 Homes in County
Hail Report Description: Spotter reported ping pong ball-sized hail stones.
NWS Hail Report Location: 5 WSW Scobey, MT
1.00″ hail
Aug 27, 2011
7:42 PM MST-7
Hail report for August 27, 2011
Daniels County · 980 Homes in County
Hail Report Description: Public estimated quarter-sized hail stones and 40 mph winds.
NWS Hail Report Location: SE Four Buttes, MT
1.25″ hail
Aug 27, 2011
7:40 PM MST-7
Hail report for August 27, 2011
Daniels County · 980 Homes in County
Hail Report Description: Public estimated half dollar-sized hail stones and 40 mph winds.
NWS Hail Report Location: 14 NW Four Buttes, MT
0.88″ hail
Aug 27, 2011
7:00 PM MST-7
Hail report for August 27, 2011
Daniels County · 980 Homes in County
Hail Report Description: Public reported nickel-sized hail stones.
NWS Hail Report Location: N Whitetail, MT
1.75″ hail
Aug 27, 2011
4:05 PM MST-7
Hail report for August 27, 2011
Pennington County · 31,552 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 13 SSE Rapid City, SD
1.75″ hail
Aug 27, 2011
3:45 PM MST-7
Hail report for August 27, 2011
Pennington County · 31,552 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.6 NNE Rockerville, SD
1.00″ hail
Aug 27, 2011
3:22 PM MST-7
Hail report for August 27, 2011
Pennington County · 31,552 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Pactola Reservoir, SD
Showing 10 of 10
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 27, 2011

15 reports
Free hail report + wind check →
60 mph
Aug 27, 2011
10:30 PM MST-7
Wind report for August 27, 2011
Yuma County · 50,917 Homes in County
Wind Report Description: Scattered strong thunderstorms moved across the community of Yuma during the late evening hours on August 27th. The storms produced gusty and damaging winds estimated to be in excess of 60 mph. According to Yuma law enforcement personnel, numerous large trees and power poles were blown down across the city. No injuries were reported due to the damaging winds.
NWS Wind Report Location: 1.5 SSE El Pueblecito, AZ
66 mph
Aug 27, 2011
9:27 PM PST-8
Wind report for August 27, 2011
Imperial County · 35,818 Homes in County
Wind Report Description: Scattered thunderstorms developed across eastern Imperial county during the late evening hours on August 27th. The storms generated strong and gusty outflow winds. The Squaw Lake RAWS weather station, located 4 miles southwest of Martinez Lake, measured a wind gust of 66 mph at approximately 1030 pm. No damage was reported in association with the strong winds.
NWS Wind Report Location: 9.63 NNE Bard, CA
58 mph
Aug 27, 2011
10:26 PM MST-7
Wind report for August 27, 2011
Yuma County · 50,917 Homes in County
Wind Report Description: Scattered thunderstorms developed in the Yuma area during the late evening hours on August 27th, and the storms generated strong and gusty winds. The official ASOS weather station in Yuma measured a peak wind gust of 50 knots at 1030 pm. The gusty winds also generated areas of dense blowing sand and dust; the Yuma observation reported visibility down to one quarter of a mile in blowing dust.
NWS Wind Report Location: 1.5 SSE El Pueblecito, AZ
55 mph
Aug 27, 2011
10:10 PM MST-7
Wind report for August 27, 2011
Yuma County · 50,917 Homes in County
Wind Report Description: Scattered strong thunderstorms moved across portions of southwestern Arizona, including the community of Yuma, during the late evening hours on August 27th. The storms generated gusty and damaging winds, estimated to be in excess of 55 mph. A trained weather spotter one mile north of the Fortuna Foothills reported numerous awnings and shutters damaged or torn from their houses.
NWS Wind Report Location: 3.5 S Blaisdell, AZ
60 mph
Aug 27, 2011
9:45 PM MST-7
Wind report for August 27, 2011
Roosevelt County · 3,116 Homes in County
Wind Report Description: Public estimated 60 mph winds.
NWS Wind Report Location: 3 SE Bainville, MT
60 mph
Aug 27, 2011
9:13 PM MST-7
Wind report for August 27, 2011
Roosevelt County · 3,116 Homes in County
Wind Report Description: Spotter esitmated 60 mph winds.
NWS Wind Report Location: 2 NNE Froid, MT
62 mph
Aug 27, 2011
8:52 PM MST-7
Wind report for August 27, 2011
Maricopa County · 1,189,056 Homes in County
Wind Report Description: Scattered high based thunderstorms developed over southwestern Maricopa county during the evening hours on August 27th. The storms generated strong and gusty outflow winds. The Oatman RAWS weather station measured a wind gust of 62 mph at 852 pm. The wind gust did not cause any damage.
NWS Wind Report Location: 5.39 ESE Montezuma, AZ
60 mph
Aug 27, 2011
8:40 PM MST-7
Wind report for August 27, 2011
Sheridan County · 1,592 Homes in County
Wind Report Description: Public estimated 60 mph winds and reported heavy rain.
NWS Wind Report Location: 14 WSW Reserve, MT
64 mph
Aug 27, 2011
8:00 PM MST-7
Wind report for August 27, 2011
Mohave County · 74,754 Homes in County
Wind Report Description: Thunderstorm winds blew over a block wall at a residence in Havasu Heights, damaging the exterior of a sunroom. The storm then blew over a camper on Interstate 40 near Arizona mile marker 13.
NWS Wind Report Location: 6.56 S Franconia, AZ
60 mph
Aug 27, 2011
7:58 PM MST-7
Wind report for August 27, 2011
Daniels County · 980 Homes in County
Wind Report Description: Spotter estimated 60 mph winds.
NWS Wind Report Location: 4 SSW Scobey, MT
60 mph
Aug 27, 2011
6:45 PM MST-7
Wind report for August 27, 2011
Pima County · 284,034 Homes in County
Wind Report Description: Thunderstorm wind gusts of 52 knots (60 mph) resulted in three power poles downed along Route 15 between Santa Rose and the Pinal County line.
NWS Wind Report Location: 1.29 NW Anegam, AZ
58 mph
Aug 27, 2011
4:29 PM PST-8
Wind report for August 27, 2011
Kern County · 219,541 Homes in County
Wind Report Description: A severe thunderstorm created wind gusts of 58 mph at Inyokern.
NWS Wind Report Location: 3.64 WNW Inyokern Airport, CA
73 mph
Aug 27, 2011
2:30 PM PST-8
Wind report for August 27, 2011
San Bernardino County · 516,095 Homes in County
Wind Report Description: There was damage to a shed and an awning.
NWS Wind Report Location: 2.86 W Old Dale, CA
60 mph
Aug 27, 2011
2:00 PM PST-8
Wind report for August 27, 2011
San Bernardino County · 516,095 Homes in County
Wind Report Description: Five power poles were blown down, knocking out electricity to about 900 homes.
NWS Wind Report Location: 3.23 NNW Lenwood, CA
64 mph
Aug 27, 2011
3:36 PM EST-5
Wind report for August 27, 2011
St. Lucie County · 109,588 Homes in County
Wind Report Description: West Palm Beach media relayed several reports from citizens of tree damage north of Port St. Lucie. Wind gusts were estimated at 60 to 65 mph after examining photos of the damage.
NWS Wind Report Location: 3.07 SW White City, FL
Showing 15 of 15
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 27, 2011

3 reports
EF1 category
Aug 27, 2011
5:38 PM EST-5
Tornado report for August 27, 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 27, 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 27, 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
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 27, 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 27, 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 27, 2011?

Our records show 10 hail, 15 wind, and 3 tornado reports on August 27, 2011, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 27, 2011.

What was the largest hail reported on August 27, 2011?

The largest hail size in these storm-report records on August 27, 2011 is 1.75″, reported near Rockerville, 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 27, 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 27, 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 27, 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 27, 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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