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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 18, 2011

Public hail, wind, and tornado reports across the United States on August 18, 2011 from August 18, 2011 through August 18, 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
247
Wind Reports
233
Tornado Reports
6
Max Hail Size
4.25″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 18, 2011 · 2011–present Updated  Daily · last Aug 18, 2011

NWS Hail Reports on August 18, 2011

247 reports
Free hail report for your home →
1.00″ hail
Aug 18, 2011
11:55 PM CST-6
Hail report for August 18, 2011
Polk County · 10,621 Homes in County
Hail Report Description: Quite a bit of nickel to quarter sized hail fell.
NWS Hail Report Location: 1.67 SE Erskine, MN
1.00″ hail
Aug 18, 2011
11:45 PM CST-6
Hail report for August 18, 2011
Polk County · 10,621 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .83 NE Mentor, MN
1.00″ hail
Aug 18, 2011
11:25 PM CST-6
Hail report for August 18, 2011
Red Lake County · 1,535 Homes in County
Hail Report Description: Mainly dime to nickel sized hail fell along with a few quarter sized hailstones.
NWS Hail Report Location: .69 N Red Lake Falls, MN
1.00″ hail
Aug 18, 2011
10:41 PM CST-6
Hail report for August 18, 2011
Douglas County · 28,496 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.77 WSW Lawrence, KS
1.00″ hail
Aug 18, 2011
10:31 PM CST-6
Hail report for August 18, 2011
Clay County · 75,791 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Gladstone, MO
1.00″ hail
Aug 18, 2011
10:25 PM CST-6
Hail report for August 18, 2011
Clay County · 75,791 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 S Glenaire, MO
1.00″ hail
Aug 18, 2011
10:14 PM CST-6
Hail report for August 18, 2011
Madison County · 10,473 Homes in County
Hail Report Description: Mostly smaller, but there was a lot of it according the law enforcement in the area.
NWS Hail Report Location: 4.84 N Battle Creek, NE
1.50″ hail
Aug 18, 2011
10:07 PM CST-6
Hail report for August 18, 2011
Clay County · 75,791 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.14 E Liberty, MO
1.25″ hail
Aug 18, 2011
10:01 PM CST-6
Hail report for August 18, 2011
Platte County · 30,453 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.38 N Ridgely, MO
0.75″ hail
Aug 18, 2011
9:56 PM CST-6
Hail report for August 18, 2011
Leavenworth County · 24,172 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Leavenworth, KS
1.00″ hail
Aug 18, 2011
9:50 PM CST-6
Hail report for August 18, 2011
Platte County · 30,453 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .53 E Dearborn, MO
0.75″ hail
Aug 18, 2011
9:45 PM CST-6
Hail report for August 18, 2011
Platte County · 30,453 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .53 E Dearborn, MO
1.00″ hail
Aug 18, 2011
9:25 PM CST-6
Hail report for August 18, 2011
Buchanan County · 28,245 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N St Joseph, MO
1.00″ hail
Aug 18, 2011
9:23 PM CST-6
Hail report for August 18, 2011
Buchanan County · 28,245 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 S St Joseph, MO
0.88″ hail
Aug 18, 2011
9:22 PM CST-6
Hail report for August 18, 2011
Buchanan County · 28,245 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 N St Joseph, MO
Showing 15 of 247
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 18, 2011

233 reports
Free hail report + wind check →
70 mph
Aug 18, 2011
11:58 PM CST-6
Wind report for August 18, 2011
Pettis County · 14,635 Homes in County
Wind Report Description: Numerous tents and power lines were reported to have been blown down at the State Fair grounds.
NWS Wind Report Location: 1.08 W Sedalia, MO
62 mph
Aug 18, 2011
11:57 PM CST-6
Wind report for August 18, 2011
Pettis County · 14,635 Homes in County
Wind Report Description: Thunderstorm wind gust was measured at 62 mph.
NWS Wind Report Location: 2.26 WNW Sedalia, MO
60 mph
Aug 18, 2011
11:57 PM CST-6
Wind report for August 18, 2011
Johnson County · 15,117 Homes in County
Wind Report Description: Thunderstorm wind gust was measured at 60 mph, at Whiteman Air Force base.
NWS Wind Report Location: .69 N (Szl)Whiteman Afb, MO
70 mph
Aug 18, 2011
11:45 PM CST-6
Wind report for August 18, 2011
Pettis County · 14,635 Homes in County
Wind Report Description: A pickup truck was blown over on Highway 50. Thunderstorm wind gusts were estimated up to 70 mph.
NWS Wind Report Location: 1.48 SSW La Monte, MO
66 mph
Aug 18, 2011
11:45 PM CST-6
Wind report for August 18, 2011
Coffey County · 3,353 Homes in County
Wind Report Description: Measured wind gust of 66 mph at wolf creek power plant.
NWS Wind Report Location: 3.05 ENE Burlington, KS
61 mph
Aug 18, 2011
11:38 PM CST-6
Wind report for August 18, 2011
Anderson County · 3,159 Homes in County
Wind Report Description: Garnett AWOS measured wind gust of 61 mph.
NWS Wind Report Location: .54 W Garnett, KS
60 mph
Aug 18, 2011
11:37 PM CST-6
Wind report for August 18, 2011
Miami County · 11,659 Homes in County
Wind Report Description: Four to five inch tree limbs were reported down. Thunderstorm wind gusts were estimated up to 60 mph.
NWS Wind Report Location: .88 NE Louisburg, KS
63 mph
Aug 18, 2011
11:35 PM CST-6
Wind report for August 18, 2011
Johnson County · 15,117 Homes in County
Wind Report Description: The Warrensburg airport measured a wind gust at 63 mph.
NWS Wind Report Location: .69 N Warrensburg Arpt, MO
60 mph
Aug 18, 2011
11:33 PM CST-6
Wind report for August 18, 2011
Johnson County · 15,117 Homes in County
Wind Report Description: An eighteen to twenty inch in diameter tree was blown down. Thunderstorm wind gusts were estimated up to 60 mph.
NWS Wind Report Location: 1.28 ESE Warrensburg, MO
60 mph
Aug 18, 2011
11:15 PM CST-6
Wind report for August 18, 2011
Johnson County · 15,117 Homes in County
Wind Report Description: A 20 inch diameter tree was blown down. Thunderstorm wind gusts were estimated up to 60 mph.
NWS Wind Report Location: N Centerview, MO
64 mph
Aug 18, 2011
11:08 PM CST-6
Wind report for August 18, 2011
Lafayette County · 11,770 Homes in County
Wind Report Description: Thunderstorm wind gusts were estimated up to 65 mph.
NWS Wind Report Location: .54 E Lexington, MO
64 mph
Aug 18, 2011
11:02 PM CST-6
Wind report for August 18, 2011
Franklin County · 8,614 Homes in County
Wind Report Description: Trees and power lines reported down across the city of Ottawa.
NWS Wind Report Location: N Ottawa, KS
60 mph
Aug 18, 2011
11:00 PM CST-6
Wind report for August 18, 2011
Ray County · 8,413 Homes in County
Wind Report Description: Thunderstorm wind gusts were estimated up to 60 mph. Tree limbs up to 3 inches in diameter were snapped off.
NWS Wind Report Location: .53 E Richmond, MO
69 mph
Aug 18, 2011
10:57 PM CST-6
Wind report for August 18, 2011
Osage County · 6,057 Homes in County
Wind Report Description: Three to four inch diameter tree limbs blown down.
NWS Wind Report Location: .69 N Burlingame, KS
64 mph
Aug 18, 2011
10:50 PM CST-6
Wind report for August 18, 2011
Shawnee County · 58,098 Homes in County
Wind Report Description: Reports of 4 inch diameter tree limbs down with half inch sized hail.
NWS Wind Report Location: 2.07 N Pauline, KS
Showing 15 of 233
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 18, 2011

6 reports
EF0 category
Aug 18, 2011
6:40 PM CST-6
Tornado report for August 18, 2011
Cherry County · 2,397 Homes in County
Tornado Report Description: A rope tornado briefly touched down in a pasture just southwest of a residence. No damage occurred and the tornado was rated as an EF0.
NWS Tornado Report Location: 32.7 SW Merritt Res, NE
EF0 category
Aug 18, 2011
4:48 PM CST-6
Tornado report for August 18, 2011
Holt County · 4,173 Homes in County
Tornado Report Description: A tornado touched down just southeast of Ewing near the Holt county and Antelope county line. It was on the ground for one minute with no damage observed. At the time of the report, the tornado was large and was becoming rain wrapped.
NWS Tornado Report Location: 1.54 ESE Ewing, NE
EF0 category
Aug 18, 2011
4:46 PM CST-6
Tornado report for August 18, 2011
Antelope County · 2,835 Homes in County
Tornado Report Description: A tornado was on ground for about 1 mile west of Clearwater. The tornado was caught on film by several people, and apparently did little damage.
NWS Tornado Report Location: 3.58 W Clearwater, NE
EF0 category
Aug 18, 2011
4:23 PM CST-6
Tornado report for August 18, 2011
Holt County · 4,173 Homes in County
Tornado Report Description: There was a brief tornado touchdown just north of Ewing. As the storm moved over Ewing the entire storm exhibited massive rotation. No damage occurred from this tornado and it was rated as an EF0 tornado.
NWS Tornado Report Location: 1 N Ewing, NE
EF0 category
Aug 18, 2011
4:35 PM EST-5
Tornado report for August 18, 2011
Alexander County · 11,546 Homes in County
Tornado Report Description: A small area of tornadic damage was surveyed in the Powell Rd, Taylorsville Manufacturing Rd area. A manufactured home was pushed off its block foundation and several outbuildings were destroyed. Several homes also received damage due to wind-blown hail.
NWS Tornado Report Location: 1.94 NNW Paynes Store, NC
EF0 category
Aug 18, 2011
9:15 AM EST-5
Tornado report for August 18, 2011
New Hanover County · 71,470 Homes in County
Tornado Report Description: A National Weather Service Storm Survey Team concluded a waterspout came ashore as an EF-0 tornado with winds to 65 mph. The tornado had a path length of one-third of a mile and a maximum path width of 20 yards. The waterspout was moving to the southwest, parallel to the northern portions of Carolina Beach. It eventually moved onto the coast just southeast of the Marriott Hotel at the north end of Carolina Beach Avenue South. The tornado crossed over the dunes and destroyed a wooden dune bridge structure. The tornado crossed near the intersection of Woody Hewett Avenue and Atlanta Avenue causing minor damage to a light pole at a car wash. The tornado tossed patio furniture and umbrellas into the air prior to crossing South Lake Park Boulevard. Video showed that the tornado moved across Carolina Beach Lake and then quickly lifted near the lake's southern shoreline.
NWS Tornado Report Location: .45 E Carolina Beach, NC
Showing 6 of 6
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 18, 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 18, 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 18, 2011?

Our records show 247 hail, 233 wind, and 6 tornado reports on August 18, 2011, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 18, 2011.

What was the largest hail reported on August 18, 2011?

The largest hail size in these storm-report records on August 18, 2011 is 4.25″, reported near Martinsburg, 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 18, 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 18, 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 18, 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 18, 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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