Heads up! Small hail spotted in these regions: North Port, FL • Durham, NC • Champaign, IL • Fort Myers, FL • Mattoon, IL • Sebring, FL • Knoxville, TN • Corpus Christi, TX      ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Farmington, NM • Louisville, KY • Winston, NC • Greensboro, NC • Rock Springs, WY • Provo, UT • Logan, UT • Ogden, UT • Salt Lake City, UT      
HailGeeks
NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 12, 2010

Public hail, wind, and tornado reports across the United States on August 12, 2010 from August 12, 2010 through August 12, 2010, 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
61
Wind Reports
255
Tornado Reports
15
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 12, 2010 · 2010–present Updated  Daily · last Aug 12, 2010

NWS Hail Reports on August 12, 2010

61 reports
Free hail report for your home →
1.00″ hail
Aug 12, 2010
10:57 PM CST-6
Hail report for August 12, 2010
Watonwan County · 3,868 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6.53 SSE Darfur, MN
0.75″ hail
Aug 12, 2010
10:30 PM CST-6
Hail report for August 12, 2010
Renville County · 5,811 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Sacred Heart, MN
1.00″ hail
Aug 12, 2010
10:22 PM CST-6
Hail report for August 12, 2010
Renville County · 891 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .46 W Tolley, ND
0.75″ hail
Aug 12, 2010
8:18 PM MST-7
Hail report for August 12, 2010
Meade County · 8,787 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Faith, SD
1.00″ hail
Aug 12, 2010
7:54 PM MST-7
Hail report for August 12, 2010
Meade County · 8,787 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 12.26 N Sturgis, SD
2.50″ hail
Aug 12, 2010
7:50 PM MST-7
Hail report for August 12, 2010
Stark County · 8,960 Homes in County
Hail Report Description: The largest hailstone during this event was two and one half inches in diameter. The large hail damaged windows, siding, crops, and vehicles.
NWS Hail Report Location: .84 SE South Heart, ND
1.50″ hail
Aug 12, 2010
7:45 PM MST-7
Hail report for August 12, 2010
Adams County · 995 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4.37 E Reeder, ND
1.75″ hail
Aug 12, 2010
7:34 PM MST-7
Hail report for August 12, 2010
Stark County · 8,960 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 N Belfield, ND
1.00″ hail
Aug 12, 2010
8:31 PM CST-6
Hail report for August 12, 2010
Burke County · 1,094 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Bowbells, ND
1.00″ hail
Aug 12, 2010
7:28 PM MST-7
Hail report for August 12, 2010
Adams County · 995 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5.05 SE Reeder, ND
1.00″ hail
Aug 12, 2010
7:05 PM MST-7
Hail report for August 12, 2010
Butte County · 2,871 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Hoover, SD
1.75″ hail
Aug 12, 2010
7:42 PM CST-6
Hail report for August 12, 2010
Burke County · 1,094 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .45 W Flaxton, ND
1.50″ hail
Aug 12, 2010
6:30 PM MST-7
Hail report for August 12, 2010
Adams County · 995 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .84 SE Reeder, ND
2.00″ hail
Aug 12, 2010
6:15 PM MST-7
Hail report for August 12, 2010
Butte County · 2,871 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 16.84 N Belle Fourche Airport, SD
1.25″ hail
Aug 12, 2010
6:05 PM MST-7
Hail report for August 12, 2010
Crook County · 2,729 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6.22 SE Colony, WY
Showing 15 of 61
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 12, 2010

255 reports
Free hail report + wind check →
70 mph
Aug 12, 2010
11:30 PM CST-6
Wind report for August 12, 2010
Martin County · 7,658 Homes in County
Wind Report Description: Lots of trees and power lines were blown down, especially west of Fairmont, Minnesota. In addition, a warehouse roof and large garage was damaged at an industrial park. Some damage also occurred at the Martin County fairgrounds.
NWS Wind Report Location: 1.48 NW Fairmont, MN
59 mph
Aug 12, 2010
11:21 PM CST-6
Wind report for August 12, 2010
Adams County · 10,059 Homes in County
Wind Report Description: Peak gust of 59 MPH was associated with a collapsing thunderstorm in the area.
NWS Wind Report Location: N (Hsi)Hastings Arpt, NE
73 mph
Aug 12, 2010
11:18 PM CST-6
Wind report for August 12, 2010
Morton County · 10,416 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .47 E St Anthony, ND
64 mph
Aug 12, 2010
9:58 PM MST-7
Wind report for August 12, 2010
Corson County · 1,121 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1.19 NE Little Eagle, SD
81 mph
Aug 12, 2010
10:50 PM CST-6
Wind report for August 12, 2010
Emmons County · 1,669 Homes in County
Wind Report Description: Strong thunderstorm winds tore the roof off of a trailer home.
NWS Wind Report Location: N Linton, ND
70 mph
Aug 12, 2010
9:40 PM MST-7
Wind report for August 12, 2010
Corson County · 1,121 Homes in County
Wind Report Description: Seventy mph winds were estimated in McLaughlin.
NWS Wind Report Location: .84 SE Mc Laughlin, SD
70 mph
Aug 12, 2010
9:23 PM MST-7
Wind report for August 12, 2010
Sioux County · 1,012 Homes in County
Wind Report Description: Estimated winds of 70 mph were reported.
NWS Wind Report Location: .69 N Selfridge, ND
69 mph
Aug 12, 2010
9:00 PM MST-7
Wind report for August 12, 2010
Corson County · 1,121 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 11.1 S Bullhead, SD
60 mph
Aug 12, 2010
8:50 PM MST-7
Wind report for August 12, 2010
Ziebach County · 543 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph.
NWS Wind Report Location: 7 SE Glad Valley, SD
58 mph
Aug 12, 2010
10:45 PM EST-5
Wind report for August 12, 2010
Craven County · 32,825 Homes in County
Wind Report Description: Strong winds blew down several trees between Cayton and Vanceboro.
NWS Wind Report Location: 4.46 NW Caton, NC
69 mph
Aug 12, 2010
9:45 PM CST-6
Wind report for August 12, 2010
Otter Tail County · 29,682 Homes in County
Wind Report Description: Strong east winds flipped multiple boat lifts and damaged several docks on the west end of Otter Tail Lake.
NWS Wind Report Location: 3.41 ESE Phelps, MN
81 mph
Aug 12, 2010
8:35 PM MST-7
Wind report for August 12, 2010
Hettinger County · 1,189 Homes in County
Wind Report Description: Estimated winds of 80 mph were reported.
NWS Wind Report Location: N Regent, ND
92 mph
Aug 12, 2010
8:35 PM MST-7
Wind report for August 12, 2010
Hettinger County · 1,189 Homes in County
Wind Report Description: Damage was reported to trees and power lines. Damage was also reported to a grain bin and an elevator roof in the city of Mott.
NWS Wind Report Location: .84 SW Mott, ND
64 mph
Aug 12, 2010
8:35 PM MST-7
Wind report for August 12, 2010
Corson County · 1,121 Homes in County
Wind Report Description: Sixty-five mph winds were estimated northwest of Isabel.
NWS Wind Report Location: 10.36 ENE Athboy, SD
58 mph
Aug 12, 2010
9:23 PM CST-6
Wind report for August 12, 2010
Washburn County · 11,207 Homes in County
Wind Report Description: Trees were blown down.
NWS Wind Report Location: N Minong, WI
Showing 15 of 255
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 12, 2010

15 reports
EF3 category
Aug 12, 2010
8:40 PM CST-6
Tornado report for August 12, 2010
Ward County · 17,129 Homes in County
Tornado Report Description: This tornado crossed from Burke County into Ward County. Note that for roughly three miles in the vicinity of the Des Lacs River, U.S. Highway 52 runs right on the Burke and Ward County line. The tornado was right on the highway in this area. This was the location of the worst damage with this tornado. Farm property on the north side of the highway, Burke County, and on the south side of the highway, Ward County, was impacted. One fatality and one injury occurred here, in a single automobile travelling along the highway, on the county line. The vehicle came to rest in a field, nearly 200 yards off the highway, on the south side of the highway, on the east side of the river, in Ward County. See the EF3 tornado entry for Burke County from August 12.||This third tornado touched down just northeast of Bowbells, Burke County, and tracked east-southeast along U.S. Highway 52, and into Ward County where it dissipated. This EF3 tornado was spawned from the same supercell thunderstorm that earlier produced two brief and weak tornadoes in Burke County.||Meteorologists from the National Weather Service conducted a storm damage survey on Friday, August 13, 2010. Meteorologists walked through the area and spoke with numerous people affected, some of whom were eye witnesses to the event.||Significant damage occurred nearly six miles east of Bowbells, near the Des Lacs River, where U.S. Highway 52 is on the Burke and Ward County line. Three farms were impacted. The worst damage was on the Burke County side of the highway and west side of the river, where a farm home (DI 2, DOD 8) and six outbuildings were destroyed. Nineteen of 21 grain bins were also damaged or destroyed. In addition, a fifty foot air seeder connected to a cultivator, with a combined estimated weight near 60,000 pounds, was moved approximately 100 yards. Based on a lack of scratch marks in the ground it was determined that this equipment was picked up and carried through the air. A second farm, on the Ward County side of the highway, had trees in shelter belts snapped and uprooted and the chimney on the house damaged. A third house, this one on the east side of the river and the Ward County side of the highway, also had significant damage. Here, one camper was thrown into the river on the south side of the Highway 52 bridge that crosses the river, while another camper was thrown into the river and landed on the north side of the bridge, back into Burke County. The house had damage to siding and shingles.||Of all the damage surveyed the absolute worst corresponded to a high EF3 on the Enhanced Fujita Tornado Scale. From that it was determined that peak wind speeds in the tornado were on the order of 165 mph.||One fatality and one injury occurred in an automobile in this same immediate area. A car with two occupants travelling east along U.S. Highway 52 was picked up and carried over the Des Lacs River, and came to rest 200 yards off the highway, in a field east of the river, and on the Ward County side of the highway. The driver of the vehicle was injured and the passenger was killed.||See the other three tornado entries for Burke County from this event on August 12. This tornado crossed into Ward County from Burke.
NWS Tornado Report Location: 9.68 NNE Niobe, ND
EF3 category
Aug 12, 2010
8:26 PM CST-6
Tornado report for August 12, 2010
Burke County · 1,094 Homes in County
Tornado Report Description: This tornado crossed from Burke County into Ward County. Note that for roughly three miles in the vicinity of the Des Lacs River, U.S. Highway 52 runs right on the Burke and Ward County line. The tornado was right on the highway in this area. This was the location of the worst damage with this tornado. Farm property on the north side of the highway, Burke County, and on the south side of the highway, Ward County, was impacted. One fatality and one injury occurred here, in a single automobile travelling along the highway, on the county line. The vehicle came to rest in a field, nearly 200 yards off the highway, on the south side of the highway, on the east side of the river, in Ward County. See the EF3 tornado entry for Ward County from August 12.||This third tornado touched down just northeast of Bowbells, Burke County, and tracked east-southeast along U.S. Highway 52, and into Ward County where it dissipated. This EF3 tornado was spawned from the same supercell thunderstorm that earlier produced two brief and weak tornadoes in Burke County.||Meteorologists from the National Weather Service conducted a storm damage survey on Friday, August 13, 2010. Meteorologists walked through the area and spoke with numerous people affected, some of whom were eye witnesses to the event.||Significant damage occurred nearly six miles east of Bowbells, near the Des Lacs River, where U.S. Highway 52 is on the Burke and Ward County line. Three farms were impacted. The worst damage was on the Burke County side of the highway and west side of the river, where a farm home (DI 2, DOD 8) and six outbuildings were destroyed. Nineteen of 21 grain bins were also damaged or destroyed. In addition, a fifty foot air seeder connected to a cultivator, with a combined estimated weight near 60,000 pounds, was moved approximately 100 yards. Based on a lack of scratch marks in the ground it was determined that this equipment was picked up and carried through the air. A second farm, on the Ward County side of the highway, had trees in shelter belts snapped and uprooted and the chimney on the house damaged. A third house, this one on the east side of the river and the Ward County side of the highway, also had significant damage. Here, one camper was thrown into the river on the south side of the Highway 52 bridge that crosses the river, while another camper was thrown into the river and landed on the north side of the bridge, back into Burke County. The house had damage to siding and shingles.||Of all the damage surveyed the absolute worst corresponded to a high EF3 on the Enhanced Fujita Tornado Scale. From that it was determined that peak wind speeds in the tornado were on the order of 165 mph.||One fatality and one injury occurred in an automobile in this same immediate area. A car with two occupants travelling east along U.S. Highway 52 was picked up and carried over the Des Lacs River, and came to rest 200 yards off the highway, in a field east of the river, and on the Ward County side of the highway. The driver of the vehicle was injured and the passenger was killed.||See the other two tornado entries for Burke County, and the EF3 tornado entry for Ward County from August 12 as this tornado crossed into Ward County.
NWS Tornado Report Location: 3.01 ENE Bowbells, ND
EF0 category
Aug 12, 2010
8:03 PM CST-6
Tornado report for August 12, 2010
Burke County · 1,094 Homes in County
Tornado Report Description: A second brief tornado touched down in the open country just west of the Bowbells airport. No structures were impacted so no damage was done. This tornado was spawned from the same supercell thunderstorm that earlier produced a brief tornado in Burke County, and later produced a long tracked high end EF3 tornado from Burke into Ward County. See the other two tornado entries for Burke County and the tornado entry for Ward County from August 12.
NWS Tornado Report Location: 1.63 NW Bowbells, ND
EF0 category
Aug 12, 2010
8:00 PM CST-6
Tornado report for August 12, 2010
Burke County · 1,094 Homes in County
Tornado Report Description: A brief tornado touched down in the open country west of Bowbells. No structures were impacted so no damage was done. This tornado was spawned from the same supercell thunderstorm that later produced another brief tornado in Burke County and a long tracked high end EF3 tornado from Burke into Ward County. See the other two tornado entries for Burke County and the tornado entry for Ward County from August 12.
NWS Tornado Report Location: 5 W Bowbells, ND
EF0 category
Aug 12, 2010
7:40 PM CST-6
Tornado report for August 12, 2010
Ransom County · 1,964 Homes in County
Tornado Report Description: Tree damage was noted along the four mile tornado path, with numerous branches snapped off. Peak winds were estimated at 80 mph.
NWS Tornado Report Location: 5.32 NW Lisbon Muni Arpt, ND
EF0 category
Aug 12, 2010
7:36 PM CST-6
Tornado report for August 12, 2010
Richland County · 5,194 Homes in County
Tornado Report Description: This tornado began in Sargent County at 834 pm CDTcdt, where it had an approximate 1 mile path. It continued in Richland County for about one additional mile, for a total path length of about 2 miles. Peak winds were estimated at 80 mph.
NWS Tornado Report Location: 5.51 WSW Lidgerwood, ND
EF0 category
Aug 12, 2010
7:34 PM CST-6
Tornado report for August 12, 2010
Sargent County · 1,512 Homes in County
Tornado Report Description: Richland County dispatch relayed a public report of a tornado touchdown about 1 mile south of Geneseo in Sargent County. The tornado tracked east for about 1 mile and the crossed into Richland County around 836 pm CDT where it continued for about 1 more mile before lifting around 838 pm CDT. No significant damage was reported as the tornado stayed over mainly opened fields.
NWS Tornado Report Location: 1 S Geneseo, ND
EF0 category
Aug 12, 2010
7:00 PM CST-6
Tornado report for August 12, 2010
Stearns County · 45,866 Homes in County
Tornado Report Description: A National Weather Service Storm Survey Team determined that an EF-0 tornado touched down on the east side of St. Augusta, Minnesota. Total path length was less than one-quarter of a mile, with several dozen trees blown down in a neighborhood on the east side of St. Augusta.
NWS Tornado Report Location: .08 NNW St Augusta, MN
EF1 category
Aug 12, 2010
6:44 PM CST-6
Tornado report for August 12, 2010
Stearns County · 45,866 Homes in County
Tornado Report Description: A National Weather Service Storm Survey determined that an EF-1 tornado touched down approximately two miles north of Brooten, and tracked to the northeast to approximately 2.5 miles west of Elrosa, Minnesota. Hundreds of trees were snapped or uprooted. Several farmsteads were damaged. Roofs were blown off of barns, and several sheds and outbuildings, including grain bins were blown down.
NWS Tornado Report Location: 2.07 N Brooten, MN
EF0 category
Aug 12, 2010
5:22 PM CST-6
Tornado report for August 12, 2010
Lac qui Parle County · 3,021 Homes in County
Tornado Report Description: Local law enforcement officials, spotters and chasers observed a brief tornado touchdown on the southern edge of Louisburg. It picked up a grain bin at the Louisburg elevator and threw it 100 yards. Some trees were also uprooted near the same area.
NWS Tornado Report Location: .43 SSE Louisburg, MN
EF0 category
Aug 12, 2010
5:05 PM CST-6
Tornado report for August 12, 2010
Lac qui Parle County · 3,021 Homes in County
Tornado Report Description: Local law enforcement officials, spotters and chasers observed a brief tornado touchdown southwest of Bellingham. The tornado ripped off a building's porch roof.
NWS Tornado Report Location: 3.37 ESE Rosen, MN
EF0 category
Aug 12, 2010
4:54 PM CST-6
Tornado report for August 12, 2010
Lac qui Parle County · 3,021 Homes in County
Tornado Report Description: Local law enforcement officials and other spotters observed a rope-like tornado occasionally touching down southwest of Madison. A damage survey noted a path through corn fields. It also knocked down several large trees and branches, dissipating near the northwest end of the Madison golf course.
NWS Tornado Report Location: 1.95 SSW Madison, MN
EF0 category
Aug 12, 2010
2:11 PM MST-7
Tornado report for August 12, 2010
Big Horn County · 4,267 Homes in County
Tornado Report Description: Several reports were received from public sources of a small tornado being viewed looking west from U.S. Highway 310 between Greybull and Lovell.
NWS Tornado Report Location: 7.88 NNE Emblem, WY
EF0 category
Aug 12, 2010
4:03 PM EST-5
Tornado report for August 12, 2010
Frederick County · 64,079 Homes in County
Tornado Report Description: Numerous trees were uprooted and large limbs were snapped. The damage to trees and debris showed a convergent and weakly rotational pattern which suggests there was a weak tornado near and just north of Westvale Court.
NWS Tornado Report Location: 2.75 S Unionville, MD
EF0 category
Aug 12, 2010
11:15 AM CST-6
Tornado report for August 12, 2010
Cameron County · 101,430 Homes in County
Tornado Report Description: Travelers along Padre Boulevard (State Highway 48), workers at the Port of Brownsville, and the Tower Controller at the Cameron County Airport near Bayview all witnessed a relatively long lived landspout tornado, several miles southwest of Port Isabel in the sand flats. No damage was reported from the tornado.
NWS Tornado Report Location: 5.93 WSW Del Mar, TX
Showing 15 of 15
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 12, 2010 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 12, 2010? 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 12, 2010?

Our records show 61 hail, 255 wind, and 15 tornado reports on August 12, 2010, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 12, 2010.

What was the largest hail reported on August 12, 2010?

The largest hail size in these storm-report records on August 12, 2010 is 2.50″, reported near .84 SE South Heart, ND.

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 12, 2010 — 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 12, 2010 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 12, 2010?

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 12, 2010 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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