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

Hail, Wind & Tornado Reports on August 20, 2007

Public hail, wind, and tornado reports across the United States on August 20, 2007 from August 20, 2007 through August 20, 2007, 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
95
Wind Reports
128
Tornado Reports
4
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 20, 2007 · 2007–present Updated  Daily · last Aug 20, 2007

NWS Hail Reports on August 20, 2007

95 reports
Free hail report for your home →
0.75″ hail
Aug 20, 2007
11:00 PM CST-6
Hail report for August 20, 2007
Davis County · 3,104 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.96 SSE Mark, IA
0.75″ hail
Aug 20, 2007
10:55 PM CST-6
Hail report for August 20, 2007
Schuyler County · 1,501 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Coatsville, MO
0.75″ hail
Aug 20, 2007
10:24 PM CST-6
Hail report for August 20, 2007
Cloud County · 3,968 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 NE Aurora, KS
1.00″ hail
Aug 20, 2007
9:48 PM CST-6
Hail report for August 20, 2007
Ochiltree County · 3,140 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.81 ENE Twichell, TX
1.00″ hail
Aug 20, 2007
9:42 PM CST-6
Hail report for August 20, 2007
Wright County · 5,314 Homes in County
Hail Report Description: Hail the size of quarters fell in the town of Eagle Grove.
NWS Hail Report Location: N Eagle Grove, IA
0.75″ hail
Aug 20, 2007
9:35 PM CST-6
Hail report for August 20, 2007
Polk County · 134,175 Homes in County
Hail Report Description: Hail reported by KCCI TV on west 1st Street.
NWS Hail Report Location: .86 SE Ankeny, IA
1.00″ hail
Aug 20, 2007
9:19 PM CST-6
Hail report for August 20, 2007
Polk County · 134,175 Homes in County
Hail Report Description: Quarter size hail fell at the NWS office in Johnston.
NWS Hail Report Location: 1.24 NE Dodge Fld Arpt, IA
0.88″ hail
Aug 20, 2007
9:15 PM CST-6
Hail report for August 20, 2007
Nobles County · 6,599 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 W Bigelow, MN
1.00″ hail
Aug 20, 2007
9:10 PM CST-6
Hail report for August 20, 2007
Osceola County · 2,478 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 NW Sibley, IA
0.75″ hail
Aug 20, 2007
9:03 PM CST-6
Hail report for August 20, 2007
Texas County · 5,763 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.22 W Adams, OK
1.00″ hail
Aug 20, 2007
9:02 PM CST-6
Hail report for August 20, 2007
Calhoun County · 4,083 Homes in County
Hail Report Description: Hail the size of quarters fell in Manson, with a few stones slightly larger.
NWS Hail Report Location: .51 W Manson, IA
0.75″ hail
Aug 20, 2007
8:30 PM CST-6
Hail report for August 20, 2007
Beaver County · 2,065 Homes in County
Hail Report Description: Reported on U.S. Highway 83.
NWS Hail Report Location: 4.84 S Turpin, OK
0.75″ hail
Aug 20, 2007
8:20 PM CST-6
Hail report for August 20, 2007
Stevens County · 1,555 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6.92 S Woods, KS
1.75″ hail
Aug 20, 2007
8:20 PM CST-6
Hail report for August 20, 2007
Seward County · 5,397 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.38 WSW (Lbl)Liberal Arpt, KS
0.75″ hail
Aug 20, 2007
8:15 PM CST-6
Hail report for August 20, 2007
Sioux County · 10,595 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 10 NW Sioux Center, IA
Showing 15 of 95
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 20, 2007

128 reports
Free hail report + wind check →
59 mph
Aug 20, 2007
10:55 PM CST-6
Wind report for August 20, 2007
Schuyler County · 1,501 Homes in County
Wind Report Description: Tree damage occurred along with electricity outages.
NWS Wind Report Location: N Coatsville, MO
60 mph
Aug 20, 2007
10:53 PM CST-6
Wind report for August 20, 2007
Grundy County · 4,633 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .86 SW Grundy Center, IA
58 mph
Aug 20, 2007
10:00 PM CST-6
Wind report for August 20, 2007
Alfalfa County · 2,152 Homes in County
Wind Report Description: Several tree limbs were blown down around town. The time of occurrence is approximate. Monetary damages were estimated.
NWS Wind Report Location: W Amorita, OK
60 mph
Aug 20, 2007
9:45 PM CST-6
Wind report for August 20, 2007
Ochiltree County · 3,140 Homes in County
Wind Report Description: A trained spotter reported at least sixty miles an hour winds and was forced off the road.
NWS Wind Report Location: .89 NE Twichell, TX
60 mph
Aug 20, 2007
9:30 PM CST-6
Wind report for August 20, 2007
Harper County · 2,586 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 4.15 S Corwin, KS
66 mph
Aug 20, 2007
9:15 PM CST-6
Wind report for August 20, 2007
Ringgold County · 2,335 Homes in County
Wind Report Description: High winds downed numerous trees in Mt. Ayr and Kellerton. Power lines were blown down around the county.
NWS Wind Report Location: .87 SW Mt Ayr, IA
64 mph
Aug 20, 2007
9:04 PM CST-6
Wind report for August 20, 2007
Lyon County · 9,338 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 6 N Emporia, KS
64 mph
Aug 20, 2007
8:49 PM CST-6
Wind report for August 20, 2007
Osage County · 6,057 Homes in County
Wind Report Description: Lawn furniture blowing around.
NWS Wind Report Location: N Osage City, KS
61 mph
Aug 20, 2007
8:47 PM CST-6
Wind report for August 20, 2007
Union County · 4,414 Homes in County
Wind Report Description: Wind speeds were measured by a KCCI Schoolnet site.
NWS Wind Report Location: .87 SE Creston, IA
60 mph
Aug 20, 2007
8:40 PM CST-6
Wind report for August 20, 2007
Lyon County · 4,356 Homes in County
Wind Report Description: Thunderstorm winds caused tree damage, including several branches blown down. The thunderstorm also produced 2 inches of rain.
NWS Wind Report Location: 4 SW George, IA
75 mph
Aug 20, 2007
8:38 PM CST-6
Wind report for August 20, 2007
Barber County · 2,237 Homes in County
Wind Report Description: Six to eight inch tree branches were blown down.
NWS Wind Report Location: 4.39 W Elm Mills, KS
64 mph
Aug 20, 2007
8:35 PM CST-6
Wind report for August 20, 2007
Lyon County · 9,338 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: N Allen, KS
60 mph
Aug 20, 2007
8:31 PM CST-6
Wind report for August 20, 2007
Adams County · 1,585 Homes in County
Wind Report Description: Winds were estimated up to to 60 MPH. Medium sized limbs were broken off of trees.
NWS Wind Report Location: 3.43 ENE Iveyville, IA
75 mph
Aug 20, 2007
8:31 PM CST-6
Wind report for August 20, 2007
Taylor County · 2,529 Homes in County
Wind Report Description: High winds destroyed a grain bin and greenhouse at a local residence just north of town. Several trees and power lines were downed in the town of Clearfield.
NWS Wind Report Location: 1.73 NW Clearfield, IA
64 mph
Aug 20, 2007
8:30 PM CST-6
Wind report for August 20, 2007
Taylor County · 2,529 Homes in County
Wind Report Description: Winds were estimated at 55 MPH sustained, with gusts to 65 MPH. Visibility was reduced to zero in heavy rain.
NWS Wind Report Location: 3.5 N Gravity, IA
Showing 15 of 128
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 20, 2007

4 reports
EF0 category
Aug 20, 2007
5:35 PM CST-6
Tornado report for August 20, 2007
Colfax County · 3,233 Homes in County
Tornado Report Description: A tornado was first reported by emergency management and then verified by a NWS storm survey and later by video from a storm chaser. The tornado caused sporadic tree and crop damage from 3 1/2 miles south of Richland, on the north bank of the Platte River where it first touched down, to around 4 miles east of Richland.
NWS Tornado Report Location: 3.5 S Richland, NE
EF0 category
Aug 20, 2007
1:45 PM CST-6
Tornado report for August 20, 2007
Texas County · 8,432 Homes in County
Tornado Report Description: A National Weather Service storm survey revealed that an EF-0 tornado briefly touched down in a rural area three miles east of Roby. A few trees experienced minor damage.
NWS Tornado Report Location: 3 E Roby, MO
EF1 category
Aug 20, 2007
1:57 PM EST-5
Tornado report for August 20, 2007
Richland County · 40,192 Homes in County
Tornado Report Description: An EF1 tornado moved into southwestern Richland County from Morrow County around 3 pm. This occurred west of Kings Corner along Kings Corner West Road. Two farms in this area sustained damage from the tornado. The tornado then moved southeast across U.S. Highway 42 and followed Kings Corner East Road for about a mile. The tornado then crossed State Route 546 near Eckert Road and eventually lifted near the intersection of Mock Road and Mill Run Road after damaging another home. The tornado had a damage path about four and a half miles long and no more than 50 yards wide in Richland County. A distinctive damage path was visible in wooded areas. The same thunderstorm that produced this tornado was also responsible for a downburst that downed many trees in southwestern Richland County.
NWS Tornado Report Location: 1.5 WNW Kings Corners, OH
EF1 category
Aug 20, 2007
1:55 PM EST-5
Tornado report for August 20, 2007
Morrow County · 12,012 Homes in County
Tornado Report Description: An EF1 tornado touched down in northeastern Morrow County north of Shauck (Johnsville) shortly before 3 pm. The tornado quickly moved southeast into Richland County. In Morrow County, a distinct damage path of downed trees was observed. The tornado was on the ground in Morrow County for perhaps one half mile and had a path no more than 50 yards in width.
NWS Tornado Report Location: 3 NNE Shauck, OH
Showing 4 of 4
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 20, 2007 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 20, 2007? 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 20, 2007?

Our records show 95 hail, 128 wind, and 4 tornado reports on August 20, 2007, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 20, 2007.

What was the largest hail reported on August 20, 2007?

The largest hail size in these storm-report records on August 20, 2007 is 2.75″, reported near Central City, NE.

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 20, 2007 — 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 20, 2007 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 20, 2007?

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 20, 2007 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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