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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 17, 2015

Public hail, wind, and tornado reports across the United States on August 17, 2015 from August 17, 2015 through August 17, 2015, 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
31
Wind Reports
39
Tornado Reports
5
Max Hail Size
2.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 17, 2015 · 2015–present Updated  Daily · last Aug 17, 2015

NWS Hail Reports on August 17, 2015

31 reports
Free hail report for your home →
1.00″ hail
Aug 17, 2015
10:15 PM MST-7
Hail report for August 17, 2015
Sioux County · 568 Homes in County
Hail Report Description: Quarter size hail was observed near Highway 29 about two miles west of the Agate Fossil Beds.
NWS Hail Report Location: N Agate, NE
1.00″ hail
Aug 17, 2015
7:35 PM MST-7
Hail report for August 17, 2015
Converse County · 4,692 Homes in County
Hail Report Description: Quarter size hail was observed 15 miles west of Bill.
NWS Hail Report Location: 15 W Bill, WY
1.25″ hail
Aug 17, 2015
6:50 PM MST-7
Hail report for August 17, 2015
Converse County · 4,692 Homes in County
Hail Report Description: Half dollar size hail was reported 33 miles west-northwest of Bill.
NWS Hail Report Location: 33 WNW Bill, WY
0.75″ hail
Aug 17, 2015
7:38 PM CST-6
Hail report for August 17, 2015
Wheeler County · 488 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5.9 SSE Bartlett, NE
0.88″ hail
Aug 17, 2015
6:26 PM MST-7
Hail report for August 17, 2015
Campbell County · 11,526 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 12 W Wright, WY
1.50″ hail
Aug 17, 2015
6:23 PM MST-7
Hail report for August 17, 2015
Sedgwick County · 972 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.25 ENE Dorsey, CO
1.50″ hail
Aug 17, 2015
6:14 PM MST-7
Hail report for August 17, 2015
Natrona County · 26,526 Homes in County
Hail Report Description: Hailstones as large as ping pong balls fell in Edgerton. Most of the stones ranged in size from a dime to a quarter.
NWS Hail Report Location: .49 S Edgerton, WY
1.75″ hail
Aug 17, 2015
6:04 PM MST-7
Hail report for August 17, 2015
Logan County · 6,601 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.25 ENE Crook, CO
1.50″ hail
Aug 17, 2015
6:01 PM MST-7
Hail report for August 17, 2015
Logan County · 6,601 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .69 N Crook, CO
1.25″ hail
Aug 17, 2015
6:00 PM MST-7
Hail report for August 17, 2015
Union County · 1,529 Homes in County
Hail Report Description: Quarter to half dollar size hail lasted about 5 minutes.
NWS Hail Report Location: 7.47 NE Clapham, NM
1.00″ hail
Aug 17, 2015
5:53 PM MST-7
Hail report for August 17, 2015
Johnson County · 3,631 Homes in County
Hail Report Description: A spotter just west of I-25 near the Johnson-Natrona County line reported one inch diameter hail.
NWS Hail Report Location: 15.36 WSW Linch, WY
0.88″ hail
Aug 17, 2015
5:43 PM MST-7
Hail report for August 17, 2015
Otero County · 6,773 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.29 WSW Rocky Ford, CO
1.00″ hail
Aug 17, 2015
5:24 PM MST-7
Hail report for August 17, 2015
Johnson County · 3,631 Homes in County
Hail Report Description: Dime to quarter sized hail was reported at a ranch between Barnum and Kaycee.
NWS Hail Report Location: 7.14 SW Kaycee Gosney Arpt, WY
0.75″ hail
Aug 17, 2015
5:15 PM MST-7
Hail report for August 17, 2015
Otero County · 6,773 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.77 WNW Rocky Ford, CO
0.88″ hail
Aug 17, 2015
4:25 PM MST-7
Hail report for August 17, 2015
Sheridan County · 11,188 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.81 N Big Horn, WY
Showing 15 of 31
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 17, 2015

39 reports
Free hail report + wind check →
59 mph
Aug 17, 2015
10:35 PM CST-6
Wind report for August 17, 2015
Seward County · 5,397 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .88 NW Liberal, KS
61 mph
Aug 17, 2015
10:04 PM CST-6
Wind report for August 17, 2015
Grant County · 1,948 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .55 E Ulysses, KS
63 mph
Aug 17, 2015
9:53 PM CST-6
Wind report for August 17, 2015
Grant County · 1,948 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .55 E Ulysses, KS
62 mph
Aug 17, 2015
7:48 PM MST-7
Wind report for August 17, 2015
Baca County · 1,534 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: N (Kspd)Springfield Awos, CO
58 mph
Aug 17, 2015
7:35 PM MST-7
Wind report for August 17, 2015
Converse County · 4,692 Homes in County
Wind Report Description: Estimated wind gusts of 55 to 60 mph were observed 15 miles west of Bill.
NWS Wind Report Location: 15 W Bill, WY
69 mph
Aug 17, 2015
6:52 PM MST-7
Wind report for August 17, 2015
Prowers County · 3,801 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: .54 W Lamar Arpt, CO
60 mph
Aug 17, 2015
6:34 PM MST-7
Wind report for August 17, 2015
Campbell County · 11,526 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph.
NWS Wind Report Location: 13.64 SSW Rozet, WY
69 mph
Aug 17, 2015
6:20 PM MST-7
Wind report for August 17, 2015
Campbell County · 11,526 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 3.01 ESE Gillette, WY
60 mph
Aug 17, 2015
6:17 PM MST-7
Wind report for August 17, 2015
Campbell County · 11,526 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph.
NWS Wind Report Location: 15.91 SW Savageton, WY
60 mph
Aug 17, 2015
6:16 PM MST-7
Wind report for August 17, 2015
Natrona County · 26,526 Homes in County
Wind Report Description: An automated anemometer recorded a thunderstorm outflow wind of 60 mph in Midwest.
NWS Wind Report Location: .5 SSE Midwest, WY
62 mph
Aug 17, 2015
6:04 PM MST-7
Wind report for August 17, 2015
Campbell County · 11,526 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: N (Gcc)Gillette Arpt, WY
58 mph
Aug 17, 2015
5:55 PM MST-7
Wind report for August 17, 2015
Campbell County · 11,526 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 16.08 S Echeta, WY
58 mph
Aug 17, 2015
7:30 PM EST-5
Wind report for August 17, 2015
Jackson County · 23,666 Homes in County
Wind Report Description: The Jackson County 911 Center reported several trees blown down across the county.
NWS Wind Report Location: N Jefferson, GA
58 mph
Aug 17, 2015
6:45 PM EST-5
Wind report for August 17, 2015
Walton County · 31,438 Homes in County
Wind Report Description: The Walton County 911 Center reported several trees blown down across the southern half of the county including on Social Circle Fairplay Road near Mount Paran Church Road, on Stokes Street in Monroe and on Highway 81 at Jersey Walnut Grove Road.
NWS Wind Report Location: .88 SE Walnut Grove, GA
60 mph
Aug 17, 2015
4:40 PM MST-7
Wind report for August 17, 2015
Greenlee County · 3,038 Homes in County
Wind Report Description: Thunderstorm wind damage occurred at the Greenlee County Fairgrounds. One power pole was knocked over and the horse stalls building sustaining significant roof damage.
NWS Wind Report Location: .87 ESE Fox, AZ
Showing 15 of 39
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 17, 2015

5 reports
EF1 category
Aug 17, 2015
6:00 PM MST-7
Tornado report for August 17, 2015
Lincoln County · 1,866 Homes in County
Tornado Report Description: Another tornado touched down briefly. Two two grain silos were destroyed and nearby power lines.
NWS Tornado Report Location: 1.13 ESE Genoa, CO
EF1 category
Aug 17, 2015
4:55 PM MST-7
Tornado report for August 17, 2015
Lincoln County · 1,866 Homes in County
Tornado Report Description: A tornado touched down briefly. It destroyed an outbuilding and caused minor damage to a nearby home.
NWS Tornado Report Location: .47 S Genoa, CO
EF0 category
Aug 17, 2015
3:34 PM MST-7
Tornado report for August 17, 2015
Adams County · 120,114 Homes in County
Tornado Report Description: A weak tornado touched down briefly but no damage was observed.
NWS Tornado Report Location: 9.57 SSE Shamrock, CO
EF0 category
Aug 17, 2015
3:14 PM CST-6
Tornado report for August 17, 2015
Covington County · 5,139 Homes in County
Tornado Report Description: This tornado downed numerous large limbs and snapped off the tops of several trees along its path. Two power poles were downed when limbs fell on power lines, taking the poles down. A carport was flipped by the tornado. The estimated peak wind was 75 mph.
NWS Tornado Report Location: 2.48 SE Williamsburg, MS
EF0 category
Aug 17, 2015
2:12 PM MST-7
Tornado report for August 17, 2015
Elbert County · 9,707 Homes in County
Tornado Report Description: A short lived tornado touched down but no damage was observed.
NWS Tornado Report Location: 4.84 N Elbert, CO
Showing 5 of 5
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 17, 2015 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 17, 2015? 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 17, 2015?

Our records show 31 hail, 39 wind, and 5 tornado reports on August 17, 2015, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 17, 2015.

What was the largest hail reported on August 17, 2015?

The largest hail size in these storm-report records on August 17, 2015 is 2.75″, reported near Pastura, NM.

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 17, 2015 — 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 17, 2015 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 17, 2015?

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 17, 2015 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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