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HailGeeks
NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 3, 2013

Public hail, wind, and tornado reports across the United States on August 3, 2013 from August 3, 2013 through August 3, 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 18, 2026.
Hail Reports
61
Wind Reports
34
Tornado Reports
8
Max Hail Size
4.25″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 3, 2013 · 2013–present Updated  Daily · last Aug 3, 2013

NWS Hail Reports on August 3, 2013

61 reports
Free hail report for your home →
0.88″ hail
Aug 3, 2013
11:00 PM MST-7
Hail report for August 3, 2013
McCone County · 859 Homes in County
Hail Report Description: Trained spotter reported 3 inches of rain in one hour and some nickel-sized hail.
NWS Hail Report Location: 3.1 WNW Ft Peck Lake Handar, MT
1.25″ hail
Aug 3, 2013
10:14 PM MST-7
Hail report for August 3, 2013
Fergus County · 4,512 Homes in County
Hail Report Description: Hail measuring 1.25 inches (half dollar sized) was reported in Grass Range, MT.
NWS Hail Report Location: N Grassrange, MT
1.00″ hail
Aug 3, 2013
9:40 PM MST-7
Hail report for August 3, 2013
Crook County · 2,729 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 SSE Devils Tower, WY
1.00″ hail
Aug 3, 2013
9:00 PM MST-7
Hail report for August 3, 2013
Powder River County · 750 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.54 WNW Bay Hope, MT
1.00″ hail
Aug 3, 2013
8:50 PM MST-7
Hail report for August 3, 2013
Campbell County · 11,526 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 17.28 N Recluse, WY
1.00″ hail
Aug 3, 2013
8:45 PM MST-7
Hail report for August 3, 2013
Crook County · 2,729 Homes in County
Hail Report Description: Alfalfa crops were damaged by large hail.
NWS Hail Report Location: 1.66 WSW Oshoto, WY
1.00″ hail
Aug 3, 2013
7:46 PM MST-7
Hail report for August 3, 2013
Crook County · 2,729 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.43 N Lightning Flat, WY
1.00″ hail
Aug 3, 2013
7:34 PM MST-7
Hail report for August 3, 2013
Cascade County · 26,463 Homes in County
Hail Report Description: Hail measuring 1.00 inches (quarter sized) was reported 1 mile SSE of Monarch, MT.
NWS Hail Report Location: 1 SSE Monarch, MT
1.25″ hail
Aug 3, 2013
7:30 PM MST-7
Hail report for August 3, 2013
Custer County · 3,973 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 2.92 NNW Murn, MT
1.75″ hail
Aug 3, 2013
7:30 PM MST-7
Hail report for August 3, 2013
Custer County · 3,973 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1.43 W Tusler, MT
1.25″ hail
Aug 3, 2013
7:05 PM MST-7
Hail report for August 3, 2013
Crook County · 2,729 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3.09 W Oshoto, WY
2.50″ hail
Aug 3, 2013
6:59 PM MST-7
Hail report for August 3, 2013
Powder River County · 750 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 10.47 N Biddle, MT
1.75″ hail
Aug 3, 2013
6:52 PM MST-7
Hail report for August 3, 2013
Custer County · 3,973 Homes in County
Hail Report Description: All the windows and siding on the north side of a house, shop, and camper were damaged. A pickup window was also broken.
NWS Hail Report Location: 2.48 WNW Tusler, MT
1.75″ hail
Aug 3, 2013
6:38 PM MST-7
Hail report for August 3, 2013
Campbell County · 11,526 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 11.97 NNW Rozet, WY
1.50″ hail
Aug 3, 2013
6:35 PM MST-7
Hail report for August 3, 2013
Powder River County · 750 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 8.31 S (4Bq)Broadus Arpt, MT
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 3, 2013

34 reports
Free hail report + wind check →
60 mph
Aug 3, 2013
9:10 PM MST-7
Wind report for August 3, 2013
Fergus County · 4,512 Homes in County
Wind Report Description: Strong winds measuring 52KT (60MPH) were reported 8 miles SE of Danvers, MT.
NWS Wind Report Location: 8 SE Danvers, MT
60 mph
Aug 3, 2013
8:30 PM MST-7
Wind report for August 3, 2013
Crook County · 2,729 Homes in County
Wind Report Description: Tree limbs six to eight inches in diameter were broken off trees.
NWS Wind Report Location: 1.66 WSW Oshoto, WY
64 mph
Aug 3, 2013
7:45 PM MST-7
Wind report for August 3, 2013
Judith Basin County · 1,053 Homes in County
Wind Report Description: Strong winds measuring 56KT (64MPH) were reported 3 miles S of Stanford, MT.
NWS Wind Report Location: 3 S Stanford, MT
60 mph
Aug 3, 2013
7:35 PM MST-7
Wind report for August 3, 2013
Dawson County · 3,308 Homes in County
Wind Report Description: Trained spotter reported wind gusts up to 60 mph.
NWS Wind Report Location: 8.96 WNW Hoyt, MT
70 mph
Aug 3, 2013
7:19 PM MST-7
Wind report for August 3, 2013
Campbell County · 11,526 Homes in County
Wind Report Description: Wind gusts were estimated near 70 mph.
NWS Wind Report Location: 3.7 WNW Recluse, WY
60 mph
Aug 3, 2013
7:10 PM MST-7
Wind report for August 3, 2013
Campbell County · 11,526 Homes in County
Wind Report Description: Wind gusts were estimated at 60 mph at Spotted Horse.
NWS Wind Report Location: 6.57 WSW Recluse, WY
64 mph
Aug 3, 2013
6:59 PM MST-7
Wind report for August 3, 2013
Powder River County · 750 Homes in County
Wind Report Description: A wind gust estimated at 65 mph was reported 10 miles north of Biddle.
NWS Wind Report Location: 10.47 N Biddle, MT
61 mph
Aug 3, 2013
6:55 PM MST-7
Wind report for August 3, 2013
Arapahoe County · 149,795 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: N (Bkf)Buckley Air Force Base, CO
60 mph
Aug 3, 2013
5:15 PM MST-7
Wind report for August 3, 2013
Big Horn County · 3,119 Homes in County
Wind Report Description: A wind gust of 60 mph was estimated just north of the Tongue River Reservoir.
NWS Wind Report Location: 10.36 N Decker, MT
60 mph
Aug 3, 2013
5:10 PM MST-7
Wind report for August 3, 2013
Garfield County · 568 Homes in County
Wind Report Description: Public reported wind gusts up to 60 mph.
NWS Wind Report Location: 7.83 NNW Van Norman, MT
60 mph
Aug 3, 2013
5:09 PM MST-7
Wind report for August 3, 2013
Adams County · 120,114 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 6.24 N Northglenn, CO
60 mph
Aug 3, 2013
5:09 PM MST-7
Wind report for August 3, 2013
Broomfield County · 18,991 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 6.09 NE Broomfield, CO
68 mph
Aug 3, 2013
4:55 PM MST-7
Wind report for August 3, 2013
Weld County · 91,444 Homes in County
Wind Report Description: A velodrome under construction was heavily damaged by heavy rain and high winds. The wind toppled the eastern third of the 250-meter cycling track. Bolts measuring one-half-inch thick by 7 1/2 inches in length were ripped out of concrete footers while 16-inch-wide trusses, collapsed under the force of the wind. In town, heavy rain, around 2.5 inches in less than one hour, caused extensive street flooding. The intense wind also downed trees which resulted in localized power outages. In addition, an empty semi-trailer was blown on its side.
NWS Wind Report Location: 1.38 S Erie, CO
60 mph
Aug 3, 2013
4:53 PM MST-7
Wind report for August 3, 2013
El Paso County · 199,016 Homes in County
Wind Report Description: Three sections of wooden fence blown down...damage to a home with parts of siding torn and other minor exterior damage.
NWS Wind Report Location: 2.13 SW (Cos)Colorado Spgs Arpt, CO
64 mph
Aug 3, 2013
4:47 PM MST-7
Wind report for August 3, 2013
Weld County · 91,444 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2.07 S Erie, CO
Showing 15 of 34
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 3, 2013

8 reports
EF0 category
Aug 3, 2013
6:15 PM MST-7
Tornado report for August 3, 2013
Powder River County · 750 Homes in County
Tornado Report Description: The tornado was reported just west of Wolf Mountain and north of Post, Montana and Rough Creek. There was plenty of debris along with hail damage east of town along Highway 59. Hail accompanied the supercell thunderstorm and was reported to be golf ball to softball size.
NWS Tornado Report Location: 3.68 SE Epsie, MT
EF0 category
Aug 3, 2013
4:40 PM MST-7
Tornado report for August 3, 2013
Weld County · 91,444 Homes in County
Tornado Report Description: A tornado touched down briefly but did no damage.
NWS Tornado Report Location: .06 NNW Erie, CO
EF0 category
Aug 3, 2013
4:24 PM MST-7
Tornado report for August 3, 2013
Weld County · 91,444 Homes in County
Tornado Report Description: A tornado touched down briefly in an open field. No damage was reported.
NWS Tornado Report Location: 3.19 NNW Keenesburg, CO
EF0 category
Aug 3, 2013
3:29 PM MST-7
Tornado report for August 3, 2013
Weld County · 91,444 Homes in County
Tornado Report Description: A tornado touched down briefly in an open field. No damage was reported.
NWS Tornado Report Location: 4.28 NNE Johnstown, CO
EF0 category
Aug 3, 2013
3:17 PM MST-7
Tornado report for August 3, 2013
Weld County · 91,444 Homes in County
Tornado Report Description: A tornado touched down briefly. Some damage was reported.
NWS Tornado Report Location: 1.48 SSE Gates, CO
EF0 category
Aug 3, 2013
3:07 PM MST-7
Tornado report for August 3, 2013
Lincoln County · 1,866 Homes in County
Tornado Report Description: A tornado touched down briefly in an open field. No damage was reported.
NWS Tornado Report Location: 7.6 N Genoa, CO
EF0 category
Aug 3, 2013
2:37 PM MST-7
Tornado report for August 3, 2013
Washington County · 1,871 Homes in County
Tornado Report Description: A tornado touched down briefly in an open field. No damage was reported.
NWS Tornado Report Location: 8.29 S Last Chance, CO
EF0 category
Aug 3, 2013
1:00 PM MST-7
Tornado report for August 3, 2013
Morgan County · 8,208 Homes in County
Tornado Report Description: A tornado touched down briefly in an open field. No damage was reported.
NWS Tornado Report Location: 1.48 NNE Ft Morgan, CO
Showing 8 of 8
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 3, 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 3, 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.

Frequently asked questions

for homeowners, buyers & sellers
How many storm reports were recorded on August 3, 2013?

Our records show 61 hail, 34 wind, and 8 tornado reports on August 3, 2013, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 3, 2013.

What was the largest hail reported on August 3, 2013?

The largest hail size in these storm-report records on August 3, 2013 is 4.25″, reported near (4Bq)Broadus Arpt, MT.

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 3, 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 3, 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 3, 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 3, 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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