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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 31, 2013

Public hail, wind, and tornado reports across the United States on August 31, 2013 from August 31, 2013 through August 31, 2013, 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

64

Wind Reports

124

Tornado Reports

1

Max Hail Size

2.50″

Source NOAA SPC · NWS Local Storm Reports Coverage United States · August 31, 2013 · 2013–present Updated Daily · last Aug 31, 2013

NWS Hail Reports on August 31, 2013

64 reports

Free hail report for your home →

1.00″ hail

Aug 31, 2013
11:21 PM CST-6

Hail report for August 31, 2013

Cherokee County · 4,718 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 4.28 ENE Larrabee, IA

0.75″ hail

Aug 31, 2013
10:10 PM CST-6

Hail report for August 31, 2013

Lyon County · 4,356 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 5.7 ESE Doon, IA

1.00″ hail

Aug 31, 2013
9:45 PM CST-6

Hail report for August 31, 2013

Cottonwood County · 4,365 Homes in County

Hail Report Description: Large hail covered the ground.

NWS Hail Report Location: .69 N Jeffers, MN

1.75″ hail

Aug 31, 2013
9:30 PM CST-6

Hail report for August 31, 2013

Nobles County · 6,599 Homes in County

Hail Report Description: Large hail caused an unknown amount of damage to vehicles.

NWS Hail Report Location: N Lismore, MN

0.75″ hail

Aug 31, 2013
9:16 PM CST-6

Hail report for August 31, 2013

Osceola County · 2,478 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 3.52 E May City, IA

1.75″ hail

Aug 31, 2013
9:16 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: Large hail caused an unknown amount of damage to vehicles and windows.

NWS Hail Report Location: .69 S Sioux Falls, SD

2.00″ hail

Aug 31, 2013
9:15 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: Large hail caused an unknown amount of damage to vehicles.

NWS Hail Report Location: 2.43 SE Sioux Falls, SD

1.75″ hail

Aug 31, 2013
9:15 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: Large hail, driven by estimated 55 mph winds, damaged vehicles, broke windows, and damaged siding.

NWS Hail Report Location: 2.3 SSE Sioux Falls, SD

1.50″ hail

Aug 31, 2013
9:10 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: Large hail was accompanied by estimated 55 mph winds. The hail damaged vehicles in the area.

NWS Hail Report Location: 2.12 WNW South Sioux Falls, SD

2.00″ hail

Aug 31, 2013
9:08 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: Large hail damaged numerous vehicles and broke windows. A woman suffered minor injuries from the hail after taking refuge in a vehicle.

NWS Hail Report Location: 1.22 SW South Sioux Falls, SD

2.50″ hail

Aug 31, 2013
9:03 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: Large hail broke windows and damaged many vehicles, as well as siding and roofs. One automobile dealer with a large temporary outdoor display reported four thousand vehicles were damaged.

NWS Hail Report Location: 1.71 SW West Sioux Falls, SD

1.50″ hail

Aug 31, 2013
9:00 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: .85 SE Hartford, SD

1.00″ hail

Aug 31, 2013
8:50 PM CST-6

Hail report for August 31, 2013

Lincoln County · 12,113 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 10.75 SSW (Lbf)Bird Fld North, NE

1.00″ hail

Aug 31, 2013
8:47 PM CST-6

Hail report for August 31, 2013

Osceola County · 2,478 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 5.43 NW Allendorf, IA

1.00″ hail

Aug 31, 2013
8:47 PM CST-6

Hail report for August 31, 2013

Minnehaha County · 51,798 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 1.5 W Hartford, SD

Showing 15 of 64

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 31, 2013

124 reports

Free hail report + wind check →

63 mph

Aug 31, 2013
11:53 PM CST-6

Wind report for August 31, 2013

Thurston County · 1,839 Homes in County

Wind Report Description: Thunderstorm wind gusts estimated at over 60 mph downed trees in town and also caused some roof damage.

NWS Wind Report Location: N Thurston, NE

58 mph

Aug 31, 2013
11:40 PM CST-6

Wind report for August 31, 2013

McLean County · 3,094 Homes in County

Wind Report Description: A Kentucky mesonet site measured a wind gust to 58 mph.

NWS Wind Report Location: 5 NW Calhoun, KY

60 mph

Aug 31, 2013
11:36 PM CST-6

Wind report for August 31, 2013

Phelps County · 3,282 Homes in County

Wind Report Description: Wind gusts estimated near 60 mph resulted in tree damage in Holdrege. A multi-branch portion of one tree split from the main trunk and was estimated at 15 inches in diameter. This portion of the tree landed on the corner of a home, damaging the roof.

NWS Wind Report Location: N Holdrege, NE

58 mph

Aug 31, 2013
11:34 PM CST-6

Wind report for August 31, 2013

Daviess County · 32,497 Homes in County

Wind Report Description: Several tree limbs were blown down, causing a few power outages.

NWS Wind Report Location: N Owensboro, KY

70 mph

Aug 31, 2013
11:30 PM CST-6

Wind report for August 31, 2013

Daviess County · 32,497 Homes in County

Wind Report Description: Downed trees and snapped power poles were reported. Kentucky Highways 554 and 2156 were closed at the Mclean County line due to a snapped power pole and some downed trees.

NWS Wind Report Location: 2.25 WSW Panther, KY

60 mph

Aug 31, 2013
11:15 PM CST-6

Wind report for August 31, 2013

Sioux County · 10,595 Homes in County

Wind Report Description: Thunderstorm winds caused an unknown amount of tree damage.

NWS Wind Report Location: 2.05 SE Alton, IA

60 mph

Aug 31, 2013
10:55 PM CST-6

Wind report for August 31, 2013

Vanderburgh County · 59,451 Homes in County

Wind Report Description: A couple of construction trailers were overturned. Several trees were blown down. Power outages were reported.

NWS Wind Report Location: E Evansville, IN

60 mph

Aug 31, 2013
10:40 PM CST-6

Wind report for August 31, 2013

O'Brien County · 5,468 Homes in County

Wind Report Description: Thunderstorm winds caused tree damage, including several branches blown down.

NWS Wind Report Location: 2.57 SE Sheldon, IA

60 mph

Aug 31, 2013
10:34 PM CST-6

Wind report for August 31, 2013

Gibson County · 11,586 Homes in County

Wind Report Description: Numerous large tree limbs were blown down. A trampoline was moved 15 to 20 feet.

NWS Wind Report Location: N Princeton, IN

64 mph

Aug 31, 2013
10:30 PM CST-6

Wind report for August 31, 2013

White County · 5,525 Homes in County

Wind Report Description: A trained spotter estimated a wind gust to 65 mph. Tree branches were blown down.

NWS Wind Report Location: SE Crossville, IL

60 mph

Aug 31, 2013
11:15 PM EST-5

Wind report for August 31, 2013

Knox County · 12,667 Homes in County

Wind Report Description: A tree was downed at Camp Arthur Road and Smith Road due to damaging thunderstorm wind gusts. Some utility lines were also reported down around the county.

NWS Wind Report Location: 3.2 WSW Bruceville, IN

55 mph

Aug 31, 2013
11:12 PM EST-5

Wind report for August 31, 2013

Knox County · 12,667 Homes in County

Wind Report Description: Tree limbs were reported down due to strong thunderstorm wind gusts.

NWS Wind Report Location: .54 E Vincennes, IN

60 mph

Aug 31, 2013
11:10 PM EST-5

Wind report for August 31, 2013

Knox County · 12,667 Homes in County

Wind Report Description: Trees were reported down on Old Highway 41, north of Vincennes and south of Oaktown, due to damaging thunderstorm wind gusts.

NWS Wind Report Location: 3.3 W Bruceville, IN

60 mph

Aug 31, 2013
10:00 PM CST-6

Wind report for August 31, 2013

Lyon County · 4,356 Homes in County

Wind Report Description: Thunderstorm winds caused tree damage, including up to 12 inch diameter limbs blown down.

NWS Wind Report Location: .69 S George, IA

70 mph

Aug 31, 2013
9:15 PM CST-6

Wind report for August 31, 2013

Lincoln County · 17,322 Homes in County

Wind Report Description: Thunderstorm winds caused tree damage, including 5 large evergreen trees blown down. The winds also blew down a fence.

NWS Wind Report Location: 2.07 S Sioux Falls, SD

Showing 15 of 124

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 31, 2013

1 reports

EF0 category

Aug 31, 2013
3:05 PM CST-6

Tornado report for August 31, 2013

Pembina County · 2,897 Homes in County

Tornado Report Description: A funnel cloud was observed first. Then dust was seen being drawn into the circulation from the ground. The tornado tracked intermittently for about a mile with peak winds estimated at 70 mph.

NWS Tornado Report Location: 3.08 NE Crystal, ND

Showing 1 of 1

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 31, 2013 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 31, 2013? 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.

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Frequently asked questions

for homeowners, buyers & sellers

How many storm reports were recorded on August 31, 2013?

Our records show 64 hail, 124 wind, and 1 tornado reports on August 31, 2013, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 31, 2013.

What was the largest hail reported on August 31, 2013?

The largest hail size in these storm-report records on August 31, 2013 is 2.50″, reported near West Sioux Falls, 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 31, 2013 — 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 31, 2013 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 31, 2013?

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 31, 2013 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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