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NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on August 17, 2020

Public hail, wind, and tornado reports across the United States on August 17, 2020 from August 17, 2020 through August 17, 2020, 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
22
Wind Reports
143
Tornado Reports
1
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · August 17, 2020 · 2020–present Updated  Daily · last Aug 17, 2020

NWS Hail Reports on August 17, 2020

22 reports
Free hail report for your home →
1.00″ hail
Aug 17, 2020
11:24 PM UTC
Hail report for August 17, 2020
Dawes County · 3,010 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 SE Chadron, NE
1.00″ hail
Aug 17, 2020
10:35 PM UTC
Hail report for August 17, 2020
Dawes County · 3,010 Homes in County
Hail Report Description: CORRECTS PREVIOUS HAIL REPORT FROM 5 SE CHADRON.
NWS Hail Report Location: 5 SE Chadron, NE
1.50″ hail
Aug 17, 2020
10:15 PM UTC
Hail report for August 17, 2020
Dawes County · 3,010 Homes in County
Hail Report Description: PUBLIC REPORTS ESTIMATED WINDS OF 60MPH AND HAIL UP TO THE SIZE OF PING PONGS. DAMAGE TO PROPERTY CROP ALSO NOTED.
NWS Hail Report Location: 4 E Chadron, NE
1.00″ hail
Aug 17, 2020
8:48 PM UTC
Hail report for August 17, 2020
Cleveland County · 30,885 Homes in County
Hail Report Description: PUBLIC REPORTED QUARTER (1.00") SIZE HAIL ON ENOLA DR.
NWS Hail Report Location: 2 SSE Waco, NC
1.00″ hail
Aug 17, 2020
8:40 PM UTC
Hail report for August 17, 2020
Cleveland County · 30,885 Homes in County
Hail Report Description: SOCIAL MEDIA REPORTED A FEW QUARTER SIZE (1.00") HAIL STONES WITH MULTIPLE NICKEL SIZE HAIL REPORTS AROUND WACO.
NWS Hail Report Location: 2 SSE Waco, NC
1.00″ hail
Aug 17, 2020
8:30 PM UTC
Hail report for August 17, 2020
Muskingum County · 28,464 Homes in County
Hail Report Description: TIME ESTIMATED FROM RADAR.
NWS Hail Report Location: White Cottage, OH
1.75″ hail
Aug 17, 2020
10:20 AM UTC
Hail report for August 17, 2020
Kit Carson County · 2,695 Homes in County
Hail Report Description: DELAYED REPORT. GOLF BALL SIZE HAIL REPORTED VIA SOCIAL MEDIA AT LOCATION. TIME IS RADAR ESTIMATED.
NWS Hail Report Location: 1 S Stratton, CO
1.00″ hail
Aug 17, 2020
5:10 AM UTC
Hail report for August 17, 2020
Franklin County · 4,216 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Mount Vernon, TX
1.00″ hail
Aug 17, 2020
3:30 AM UTC
Hail report for August 17, 2020
Osborne County · 1,813 Homes in County
Hail Report Description: MOSTLY NICKELS... WITH A FEW QUARTERS MIXED IN. DELAYED REPORT FROM LAST NIGHT.
NWS Hail Report Location: 5 NW Tipton, KS
1.50″ hail
Aug 17, 2020
1:55 AM UTC
Hail report for August 17, 2020
Texas County · 5,763 Homes in County
Hail Report Description: SPOTTER SAID HAIL WAS MOSTLY PEA WITH A FEW PING PONG BALL SIZE STONES MIXED IN. ALSO... SAID THE HAIL WAS SHORT LIVED.
NWS Hail Report Location: 1 ESE Goodwell, OK
1.75″ hail
Aug 17, 2020
1:39 AM UTC
Hail report for August 17, 2020
Clay County · 2,461 Homes in County
Hail Report Description: QUARTER TO GOLF BALL SIZE HAIL WAS REPORTED AND PASSED ALONG VIA EM.
NWS Hail Report Location: Deweese, NE
1.25″ hail
Aug 17, 2020
12:45 AM UTC
Hail report for August 17, 2020
Thayer County · 2,344 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 ESE Bruning, NE
1.00″ hail
Aug 17, 2020
12:42 AM UTC
Hail report for August 17, 2020
Otero County · 6,773 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 SSE Manzanola, CO
1.00″ hail
Aug 17, 2020
12:34 AM UTC
Hail report for August 17, 2020
Fannin County · 11,473 Homes in County
Hail Report Description: QUARTER SIZED HAIL WAS REPORTED IN RAVENNA.
NWS Hail Report Location: 7 NNE Ector, TX
1.25″ hail
Aug 17, 2020
12:25 AM UTC
Hail report for August 17, 2020
Hall County · 16,946 Homes in County
Hail Report Description: QUARTER TO HALF DOLLAR SIZE HAIL REPORTED VIA FACEBOOK.
NWS Hail Report Location: 2 S Grand Island, NE
Showing 15 of 22
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, 2020

143 reports
Free hail report + wind check →
60 mph
Aug 17, 2020
11:52 PM UTC
Wind report for August 17, 2020
Baker County · 6,570 Homes in County
Wind Report Description: MESONET STATION MGFO3 MORGAN MOUNTAIN.
NWS Wind Report Location: 10 SE Durkee, OR
64 mph
Aug 17, 2020
11:52 PM UTC
Wind report for August 17, 2020
Washington County · 3,441 Homes in County
Wind Report Description: MESONET STATION DEAI1 CATFISH.
NWS Wind Report Location: 11 WNW Weiser, ID
UNK mph
Aug 17, 2020
11:30 PM UTC
Wind report for August 17, 2020
Jefferson County · 7,744 Homes in County
Wind Report Description: REPORT RELAYED VIA NWSCHAT BY LOCAL STORM SPOTTER OF DOWNED POWER LINES ON US HIGHWAY 26 BETWEEN MADRAS AND WARM SPRINGS. TIME ESTIMATED OFF RADAR.
NWS Wind Report Location: 6 NNW Madras, OR
100 mph
Aug 17, 2020
11:26 PM UTC
Wind report for August 17, 2020
Culberson County · 780 Homes in County
Wind Report Description: TEN POWERLINE POLES WERE SNAPPED AT THEIR MIDPOINT ALONG HWY 90.
NWS Wind Report Location: 1 SSE Van Horn, TX
UNK mph
Aug 17, 2020
10:40 PM UTC
Wind report for August 17, 2020
Dawes County · 3,010 Homes in County
Wind Report Description: CHADRAD RADIO REPORTING POWER OUTAGES TO 450 CUSTOMERS FROM NEBRASKA PUBLIC POWER DISTRICT IN SOUTHWEST PART OF CHADRON.
NWS Wind Report Location: 1 SW Chadron, NE
58 mph
Aug 17, 2020
9:54 PM UTC
Wind report for August 17, 2020
Inyo County · 5,940 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Owens Valley (Raws), CA
66 mph
Aug 17, 2020
9:43 PM UTC
Wind report for August 17, 2020
Harney County · 2,385 Homes in County
Wind Report Description: MESONET STATION RLFO3 RIDDLE MOUNTAIN.
NWS Wind Report Location: 10 NE Diamond, OR
UNK mph
Aug 17, 2020
9:36 PM UTC
Wind report for August 17, 2020
Broward County · 347,737 Homes in County
Wind Report Description: AN OFF DUTY NWS EMPLOYEE REPORTED SEVERAL LARGE TREE BRANCHES DOWN IN THE VICINITY OF SW 178TH AVE AND 61ST CT IN SOUTHWEST RANCHES.
NWS Wind Report Location: 3 W Southwest Ranches, FL
UNK mph
Aug 17, 2020
9:33 PM UTC
Wind report for August 17, 2020
Morgan County · 5,558 Homes in County
Wind Report Description: TREES DOWN.
NWS Wind Report Location: Neelysville, OH
UNK mph
Aug 17, 2020
8:52 PM UTC
Wind report for August 17, 2020
Cleveland County · 30,885 Homes in County
Wind Report Description: AT LEAST 3 TREES WERE BLOWN DOWN BY THE STORM NEAR STONEY POINT ROAD.
NWS Wind Report Location: 5 SSW Cherryville, NC
UNK mph
Aug 17, 2020
8:50 PM UTC
Wind report for August 17, 2020
Albemarle County · 29,125 Homes in County
Wind Report Description: REPORTS OF TREES BLOWN DOWN ALONG PLANK ROAD.
NWS Wind Report Location: 2 E Alberene, VA
70 mph
Aug 17, 2020
8:20 PM UTC
Wind report for August 17, 2020
Harney County · 2,385 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 1 NNE Andrews, OR
UNK mph
Aug 17, 2020
8:10 PM UTC
Wind report for August 17, 2020
Orange County · 13,072 Homes in County
Wind Report Description: A TREE BLEW DOWN ONTO VA-629 LAHORE ROAD NEAR THE INTERSECTION WITH VA-631 BRICK CHURCH ROAD.
NWS Wind Report Location: 2 SW Nasons, VA
UNK mph
Aug 17, 2020
8:05 PM UTC
Wind report for August 17, 2020
Orange County · 13,072 Homes in County
Wind Report Description: A TREE BLEW DOWN ON VA-2010 MILLER ROAD NEAR THE INTERSECTION WITH GOBLER KNOB LANE.
NWS Wind Report Location: 1 WNW Orange, VA
58 mph
Aug 17, 2020
8:00 PM UTC
Wind report for August 17, 2020
Harney County · 2,385 Homes in County
Wind Report Description: SPOTTER IN FIELDS OR MEASURED SUSTAINED 44MPH WITH GUST TO 58 MPH.
NWS Wind Report Location: Fields, OR
Showing 15 of 143
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, 2020

1 reports
UNK category
Aug 17, 2020
12:01 AM UTC
Tornado report for August 17, 2020
Aitkin County · 11,832 Homes in County
Tornado Report Description: DELAYED REPORT. DRONE VIDEO SHOWED TORNADO DAMAGE TO A STAND OF TREES AND A FEW OUTBUILDINGS. SEVERAL MATURE SOFTWOOD TREES WERE BROKEN A FEW FEET ABOVE GROUND AND SEVERAL MORE WERE UPROOTED. AN OUTBUILDING HAD A GARAGE DOOR DISHED IN. AN ELECTRICAL POLE WAS BROKEN A FEW FEET ABOVE GROUND LEVEL. DAMAGE IS CONSISTENT WITH HIGH-END EF-0 TORNADO WITH MAX WIND GUSTS OF 75 TO 85 MPH. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 1 N Lawler, MN
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 17, 2020 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, 2020? 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, 2020?

Our records show 22 hail, 143 wind, and 1 tornado reports on August 17, 2020, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 17, 2020.

What was the largest hail reported on August 17, 2020?

The largest hail size in these storm-report records on August 17, 2020 is 1.75″, reported near Stratton, CO.

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, 2020 — 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, 2020 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, 2020?

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, 2020 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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