ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Provo, UT • Salt Lake City, UTATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Provo, UT • Salt Lake City, UT
Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free. Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free.
Public hail, wind, and tornado reports across the United States on August 17, 2021 from August 17, 2021 through August 17, 2021, 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
1
Wind Reports
61
Tornado Reports
25
Max Hail Size
2.00″
Source NOAA SPC · NWS Local Storm ReportsCoverage United States · August 17, 2021 · 2021–presentUpdated Daily · last Aug 17, 2021
Hail Report Description: PUBLIC PHOTO AND VIDEO SHOWS EST 2 INCH HAIL WITH SIGNIFICANT DAMAGE TO CAMPER TRAILER AND TRUCK.
NWS Hail Report Location: 10 ESE Beaver, UT
Showing 1 of 1
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.
Wind Report Description: PHOTO OF A LARGE TREE DOWN ON CAR AT APARTMENT COMPLEX PARKING LOT. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Midvale, UT
78mph
Aug 17, 2021 11:45 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 14 SW Dugway, UT
68mph
Aug 17, 2021 11:23 PM UTC
Wind report for August 17, 2021
Salt Lake County · 267,522 Homes in County
Wind Report Description: THUNDERSTORM WIND GUST OF 68 MPH MEASURED AT THE CENTER TAILINGS STATION.
NWS Wind Report Location: 4 NW Magna, UT
65mph
Aug 17, 2021 11:19 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: THUNDERSTORM WIND GUST MEASURED AT THE MARINA STATION.
NWS Wind Report Location: NE Lake Pt, UT
61mph
Aug 17, 2021 11:15 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 16 WNW Dugway, UT
62mph
Aug 17, 2021 11:15 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 12 W Dugway, UT
62mph
Aug 17, 2021 10:55 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 25 W Dugway, UT
64mph
Aug 17, 2021 10:53 PM UTC
Wind report for August 17, 2021
Millard County · 4,482 Homes in County
Wind Report Description: TSTORM WIND GUST TO 64 MPH AT BLACK ROCK
NWS Wind Report Location: 5 NE Black Rock, UT
UNKmph
Aug 17, 2021 10:45 PM UTC
Wind report for August 17, 2021
Laurens County · 19,547 Homes in County
Wind Report Description: MULTIPLE TREES DOWN WITH ROAD BLOCKAGES ON RITCHIE ROAD IN FOUNTAIN INN
NWS Wind Report Location: 5 NE Fountain Inn, SC
64mph
Aug 17, 2021 10:20 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: I-80 AT WEST DELLE
NWS Wind Report Location: 1 W Delle, UT
63mph
Aug 17, 2021 10:20 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: MESONET SITE NEAR DELLE
NWS Wind Report Location: Delle, UT
58mph
Aug 17, 2021 10:15 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: UPPER CEDAR MTN MESONET SENSOR
NWS Wind Report Location: 16 WNW Dugway, UT
UNKmph
Aug 17, 2021 10:05 PM UTC
Wind report for August 17, 2021
Laurens County · 19,547 Homes in County
Wind Report Description: TREES DOWN AND GENERAL VEGETATION DAMAGE OFF THACKSTON ROAD AND HIGHWAY 418
NWS Wind Report Location: 1 ENE Fountain Inn, SC
UNKmph
Aug 17, 2021 10:04 PM UTC
Wind report for August 17, 2021
Onondaga County · 133,988 Homes in County
Wind Report Description: SEVERAL TREES DOWN ON FORD AVENUE. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Syracuse, NY
UNKmph
Aug 17, 2021 10:03 PM UTC
Wind report for August 17, 2021
Mitchell County · 6,569 Homes in County
Wind Report Description: FALLEN TREE HAS TAKEN DOWN POWERLINE NEAR STRAWBERRY RIDGE
NWS Wind Report Location: 6 SSW Spruce Pine, NC
UNKmph
Aug 17, 2021 10:02 PM UTC
Wind report for August 17, 2021
St. Clair County · 3,889 Homes in County
Wind Report Description: SEVERE THUNDERSTORM WIND GUSTS DAMAGED SEVERAL TREES CREATING DAMAGE TO SOME POWERLINES SOUTH OF OSCEOLA ALONG HIGHWAY WW. THIS RESULTED IN POWER OUTAGES TO NUMEROUS HOMES... BUSINESSES... AND GOVERNMENT BUILDINGS IN THE AREA... INCLUDING THE SHERIFFS OFFICE.
NWS Wind Report Location: 2 NW Vista, MO
62mph
Aug 17, 2021 9:58 PM UTC
Wind report for August 17, 2021
Tooele County · 19,429 Homes in County
Wind Report Description: TSTORM WIND GUST TO 62 MPH
NWS Wind Report Location: 6 SSE Clive, UT
UNKmph
Aug 17, 2021 9:47 PM UTC
Wind report for August 17, 2021
St. Clair County · 3,889 Homes in County
Wind Report Description: SEVERE THUNDERSTORM WIND GUSTS DESTROYED A POWER POLE AND SEVERAL TREES ALONG HIGHWAY V IN RURAL ST. CLAIR COUNTY.
NWS Wind Report Location: 5 SW Vista, MO
UNKmph
Aug 17, 2021 9:34 PM UTC
Wind report for August 17, 2021
McDowell County · 14,715 Homes in County
Wind Report Description: SMALL TREE LIMBS DOWN
NWS Wind Report Location: 3 WSW Jonas Ridge, NC
UNKmph
Aug 17, 2021 9:33 PM UTC
Wind report for August 17, 2021
Orangeburg County · 23,411 Homes in County
Wind Report Description: PUBLIC REPORTED A FUNNEL CLOUD DROPPED DOWN NEAR CHURCH ALONG NEW HOPE AND COLUMBIA RD. EM FOUND 100 YD OF TREES FALLEN IN MULTIPLE DIRECTIONS. POSSIBLY TORNADO DAMAGE. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 6 NNW Brookdale, SC
UNKmph
Aug 17, 2021 9:14 PM UTC
Wind report for August 17, 2021
Burke County · 28,316 Homes in County
Wind Report Description: LARGE TREE LIMBS/BRANCHES DOWN GREATER THAN 2 INCHES
NWS Wind Report Location: 1 W Valdese, NC
60mph
Aug 17, 2021 8:45 PM UTC
Wind report for August 17, 2021
Beaverhead County · 3,534 Homes in County
Wind Report Description: IMET RELAYED THAT GUSTY WINDS FROM A THUNDERSTORM ROLLED THROUGH THE ICP FOR THE ALDER CREEK FIRE AND KNOCKED DOWN ALL OF THE PORTABLE TOILETS.
NWS Wind Report Location: 3 SW Dillon, MT
69mph
Aug 17, 2021 8:45 PM UTC
Wind report for August 17, 2021
Beaverhead County · 3,534 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 5 NE Dillon, MT
UNKmph
Aug 17, 2021 8:01 PM UTC
Wind report for August 17, 2021
Lexington County · 91,782 Homes in County
Wind Report Description: POWERLINES DOWN ALONG CRYSTAL COVE CT. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 5 SW Chapin, SC
UNKmph
Aug 17, 2021 8:00 PM UTC
Wind report for August 17, 2021
Duval County · 266,197 Homes in County
Wind Report Description: DELAYED REPORT OF LARGE TREE BRANCHES SNAPPED AND PALM TREE TOPPLED.
NWS Wind Report Location: 1 SSW Neptune Beach, FL
UNKmph
Aug 17, 2021 6:34 PM UTC
Wind report for August 17, 2021
Henry County · 18,588 Homes in County
Wind Report Description: A TREE WAS BLOWN DOWN BY THUNDERSTORM WINDS ALONG RESERVOIR ROAD.
NWS Wind Report Location: 3 SW Ridgeway, VA
UNKmph
Aug 17, 2021 6:18 PM UTC
Wind report for August 17, 2021
Caswell County · 7,806 Homes in County
Wind Report Description: ONE TREE AND SEVERAL BRANCHES DOWN ON BURTON CHAPEL ROAD.
NWS Wind Report Location: 2 SW Topnot, NC
UNKmph
Aug 17, 2021 6:04 PM UTC
Wind report for August 17, 2021
Alleghany County · 6,068 Homes in County
Wind Report Description: ONE OR TWO TREES BLOWN DOWN.
NWS Wind Report Location: 1 SE Glade Valley, NC
UNKmph
Aug 17, 2021 6:00 PM UTC
Wind report for August 17, 2021
Iredell County · 58,207 Homes in County
Wind Report Description: TREES DOWN BLOCKING ROADWAY ON HILLSDALE ROAD NEAR LOVE VALLEY
NWS Wind Report Location: 3 NNW Love Valley, NC
UNKmph
Aug 17, 2021 5:56 PM UTC
Wind report for August 17, 2021
Buncombe County · 84,383 Homes in County
Wind Report Description: TREES DOWN ACROSS BRUSH CREEK ROAD
NWS Wind Report Location: 3 SSE Fairview, NC
UNKmph
Aug 17, 2021 5:56 PM UTC
Wind report for August 17, 2021
Alleghany County · 6,068 Homes in County
Wind Report Description: A COUPLE OF TREES BLOWN DOWN ON THE BLUE RIDGE PARKWAY.
NWS Wind Report Location: 3 S Glade Valley, NC
UNKmph
Aug 17, 2021 5:41 PM UTC
Wind report for August 17, 2021
Yadkin County · 12,294 Homes in County
Wind Report Description: TREE DOWN ON MOBILE HOME. REPORT FROM SOCIAL MEDIA.
NWS Wind Report Location: 2 SSW East Bend, NC
UNKmph
Aug 17, 2021 5:37 PM UTC
Wind report for August 17, 2021
Wilkes County · 21,577 Homes in County
Wind Report Description: MULTIPLE TREES BLOWN DOWN ON CANE CREEK CHURCH ROAD.
NWS Wind Report Location: 3 ENE Halls Mills, NC
65mph
Aug 17, 2021 4:40 PM UTC
Wind report for August 17, 2021
Box Elder County · 15,899 Homes in County
Wind Report Description: UDOT SENSOR I-15 AT TREMONTON
NWS Wind Report Location: 2 WNW Tremonton, UT
UNKmph
Aug 17, 2021 4:38 PM UTC
Wind report for August 17, 2021
Oconee County · 28,035 Homes in County
Wind Report Description: TREE ON A HOUSE ON CROWE DRIVE SENECA.
NWS Wind Report Location: 8 ENE Walhalla, SC
UNKmph
Aug 17, 2021 4:12 PM UTC
Wind report for August 17, 2021
Anderson County · 65,340 Homes in County
Wind Report Description: TREE DOWN ON CENTERVILLE ROAD.
NWS Wind Report Location: 3 S Sandy Springs, SC
UNKmph
Aug 17, 2021 3:30 PM UTC
Wind report for August 17, 2021
Anderson County · 65,340 Homes in County
Wind Report Description: LARGE TREE DOWN ALONG CENTERVILLE RD. NEAR I-85
NWS Wind Report Location: 3 SSW Sandy Springs, SC
UNKmph
Aug 17, 2021 12:20 PM UTC
Wind report for August 17, 2021
Morgan County · 6,684 Homes in County
Wind Report Description: TWO TREES DOWNED ON THE 1300 BLOCK OF APALACHEE WOODS TRAIL
NWS Wind Report Location: 2 E Buckhead, GA
UNKmph
Aug 17, 2021 12:20 PM UTC
Wind report for August 17, 2021
Madison County · 8,114 Homes in County
Wind Report Description: MINOR DAMAGE TO A FEW GRAIN BINS AND BARNS...TREE DOWNED ONTO A VEHICLE...AND NUMEROUS TREE TOPS BROKEN OFF... ALL ALONG HWY 98 FROM JUST SOUTHWEST OF DANIELSVILLE TO ILA.
NWS Wind Report Location: 2 SE Ila, GA
UNKmph
Aug 17, 2021 11:00 AM UTC
Wind report for August 17, 2021
Oconee County · 13,332 Homes in County
Wind Report Description: A PORTION OF A BARN COLLAPSED NEAR THE INTERSECTION OF OLD FARMINGTON RD AND ASTONDALE RD
NWS Wind Report Location: 2 ESE Bishop, GA
60mph
Aug 17, 2021 6:59 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: FLOOD CONTROL DISTRICT OF MARICOPA COUNTY AZ ALERT MESONET STATION.
NWS Wind Report Location: 2 SE Mobile, AZ
58mph
Aug 17, 2021 6:56 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: AWOS STATION KCGZ CASA GRANDA.
NWS Wind Report Location: 5 NNW Casa Grande, AZ
UNKmph
Aug 17, 2021 6:40 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: *** DELAYED REPORT *** PHOTO FROM SOCIAL MEDIA POST SHOWS PALM TREE SPLIT IN HALF RESULTING IN DAMAGE TO A PARKED CAR AND WOODEN FENCE. NO INJURIES REPORTED.
NWS Wind Report Location: 4 SSE Glendale, AZ
58mph
Aug 17, 2021 6:31 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: MESONET STATION FW4391 AVONDALE.
NWS Wind Report Location: 5 SSE Avondale, AZ
58mph
Aug 17, 2021 6:16 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: CORRECTS TIMING OF PREVIOUS TSTM WND GST REPORT FROM 5 NNW CASA GRANDE. AWOS STATION KCGZ CASA GRANDA.
NWS Wind Report Location: 5 NNW Casa Grande, AZ
UNKmph
Aug 17, 2021 6:16 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: ***DELAYED REPORT *** PHOTO SHOWS DOWNED POWER POLE.
NWS Wind Report Location: 3 ENE East Mesa, AZ
64mph
Aug 17, 2021 6:14 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: *** DELAYED REPORT*** MESONET STATION SRP42 4.1 S COOLIDGE (SRP).
NWS Wind Report Location: 4 SSE Coolidge, AZ
UNKmph
Aug 17, 2021 6:10 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: *** DELAYED REPORT *** PHOTO FROM SOCIAL MEDIA SHOWS LARGE TREE UPROOTED. TIME ESTIMATED USING RADAR.
NWS Wind Report Location: 5 E Glendale, AZ
UNKmph
Aug 17, 2021 6:08 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: *** DELAYED REPORT *** SIX-INCH DIAMETER TREE LIMB BROKEN OFF PALO VERDE TREE.
NWS Wind Report Location: 2 NNE Sun Lakes, AZ
UNKmph
Aug 17, 2021 6:04 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: ***DELAYED REPORT***LARGE TREE DOWN ON POWER LINES NEAR LOWER BUCKEYE BETWEEN 67TH AND 75TH AVE. TIME OF 60-65 MPH WINDS ESTIMATED BY TPHX RADAR.
NWS Wind Report Location: 3 SE Tolleson, AZ
UNKmph
Aug 17, 2021 6:00 AM UTC
Wind report for August 17, 2021
Maricopa County · 1,189,056 Homes in County
Wind Report Description: *** DELAYED REPORT *** PHOTO FROM SOCIAL MEDIA SHOWS MULTIPLE TREES UPROOTED (MOSTLY PALO VERDE) ACROSS THE COOPER RD. BETWEEN OCOTILLO RD. AND QUEEN CREEK RD. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 4 NE Sun Lakes, AZ
59mph
Aug 17, 2021 5:56 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: No National Weather Service description provided.
Wind Report Description: ASOS STATION KPHX PHOENIX SKY HRBR.
NWS Wind Report Location: Sky Harbor Airport, AZ
UNKmph
Aug 17, 2021 5:50 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: *** DELAYED REPORT *** MULTIPLE REPORTS OF TREES DOWN AND A TRAMPOLINE ALONG HUNT HWY. BETWEEN GARY RD. AND BELLA VISTA RD. A FENCE WAS DESTROYED BY A DOWNED TREE NEAR HUNT HWY. AND GANTZEL RD. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 6 SE Queen Creek, AZ
UNKmph
Aug 17, 2021 5:50 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: *** DELAYED REPORT *** ONE LARGE TREE ABOUT 4 FEET IN DIAMETER UPROOTED NEAR OASIS LN AND HUNT HWY. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 8 WNW Florence, AZ
73mph
Aug 17, 2021 5:40 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: SRP MESONET STATION QUAIL.
NWS Wind Report Location: 10 ESE Queen Creek, AZ
UNKmph
Aug 17, 2021 5:20 AM UTC
Wind report for August 17, 2021
Pinal County · 136,257 Homes in County
Wind Report Description: MATURE LEMON TREE UPROOTED AND SOME LAWN FURNITURE DAMAGED/DISPLACED. MOSTLY SMALLER TREES PULLED OUT OF THE GROUND OR BROKEN - LIMBS. 8 TO 10 TREES. TWO MATURE OCOTILLOS WERE UPROOTED AND ONE OLDER SAGUARO PULLED OUT OF THE GROUND. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 4 NNW Florence Junction, AZ
60mph
Aug 17, 2021 1:06 AM UTC
Wind report for August 17, 2021
McClain County · 14,066 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 4 NW Newcastle, OK
59mph
Aug 17, 2021 12:59 AM UTC
Wind report for August 17, 2021
Big Horn County · 3,119 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 3 SSE Crow Agency, MT
58mph
Aug 17, 2021 12:12 AM UTC
Wind report for August 17, 2021
Park County · 7,261 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 17 NE Wilsall, MT
Showing 15 of 61
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, 2021
25 reports
UNKcategory
Aug 17, 2021 10:05 PM UTC
Tornado report for August 17, 2021
Laurens County · 19,547 Homes in County
Tornado Report Description: VIDEO EVIDENCE OF TORNADO WITH DEBRIS COINCIDENT WITH RADAR SIGNATURE
NWS Tornado Report Location: 3 SE Fountain Inn, SC
UNKcategory
Aug 17, 2021 9:40 PM UTC
Tornado report for August 17, 2021
Orangeburg County · 23,411 Homes in County
Tornado Report Description: THE NATIONAL WEATHER SERVICE STORM SURVEY TEAM CONFIRMED A LOW-END EF1 TORNADO JUST NORTH-NORTHWEST OF THE CITY OF ORANGEBURG. THE TORNADO HAD A PATH LENGTH JUST UNDER 1 MILE... A WIDTH THAT RANGED FROM 25 TO 50 YARDS... PEAK WINDS OF 88 MPH... AND WAS ON THE GROUND FOR APPROXIMATELY 3 MINUTES. THE TORNADO TOUCHED DOWN ALONG VIRGINIA DRIVE... JUST OFF OF COLUMBIA ROAD... AND MOVED NORTH. THE TORNADO SNAPPED TWO SMALL PINE TREES ABOUT 20 FEET OFF OF THE GROUND. THE TORNADO CONTINUED NORTHWARD TOWARD THE INTERSECTION OF FARNUM ROAD AND COLUMBIA ROAD. THE TORNADO DOWNED SEVERAL LARGE LIMBS... UPROOTED A COUPLE OF TREES AND REMOVED A FEW SHINGLES AND SOME FLASHING FROM BETHEL CHURCH. THE TORNADO THEN UPROOTED A COUPLE OF TREES AND DOWNED A FEW LARGE BRANCHES AT A FARM ALONG THE NORTHBOUND SIDE OF COLUMBIA ROAD. SOME OF THE LARGE BRANCHES DAMAGED A VINYL FENCE ALONG THE ROADWAY. THE STRONG WINDS FROM THE TORNADO REMOVED SOME OF THE FENCE CAPS AND BLEW THEM ACROSS THE HIGHWAY TO THE SOUTHBOUND SIDE.
NWS Tornado Report Location: 6 NNW Brookdale, SC
UNKcategory
Aug 17, 2021 8:04 PM UTC
Tornado report for August 17, 2021
Lexington County · 91,782 Homes in County
Tornado Report Description: VIDEO FROM HOME SECURITY CAMERA OF POSSIBLE TORNADO. LOCATED NEAR MURRAY LINDLER RD & VENTNOR AVE FACING WEST NORTHWEST.
NWS Tornado Report Location: 2 S Chapin, SC
UNKcategory
Aug 17, 2021 7:55 PM UTC
Tornado report for August 17, 2021
Lexington County · 91,782 Homes in County
Tornado Report Description: TREE DOWN ON HOME ON CRYSTAL COVE CT. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 5 SW Chapin, SC
UNKcategory
Aug 17, 2021 7:50 PM UTC
Tornado report for August 17, 2021
Newberry County · 12,860 Homes in County
Tornado Report Description: CORRECTS PREVIOUS TORNADO REPORT FROM 6 SW CHAPIN. SOCIAL MEDIA VIDEO OF A TORNADO MOVING ACROSS LAKE MURRAY NEAR DREHER ISLAND STATE PARK. THE VIDEO WAS SHOW FROM THE AUTUMN CAY NEIGHBORHOOD OFF OF STATE PARK ROAD.
NWS Tornado Report Location: 7 SW Chapin, SC
UNKcategory
Aug 17, 2021 7:50 PM UTC
Tornado report for August 17, 2021
Newberry County · 12,860 Homes in County
Tornado Report Description: SOCIAL MEDIA VIDEO OF A TORNADO MOVING ACROSS LAKE MURRAY NEAR DREHER ISLAND STATE PARK. THE VIDEO WAS SHOW FROM THE AUTUMN CAY NEIGHBORHOOD OFF OF STATE PARK ROAD.
NWS Tornado Report Location: 6 SW Chapin, SC
UNKcategory
Aug 17, 2021 7:49 PM UTC
Tornado report for August 17, 2021
Newberry County · 12,860 Homes in County
Tornado Report Description: A NATIONAL WEATHER SERVICE STORM SURVEY TEAM CONFIRMED AN EF1 TORNADO... WITH PEAK WINDS OF 95 MPH... IN THE AREA OF DREHER ISLAND STATE PARK AND IN OTHER AREAS SOUTHWEST OF CHAPIN... SC NEAR THE SHORES OF LAKE MURRAY IN NEWBERRY AND LEXINGTON COUNTIES. VIDEO PROVIDED TO THE NATIONAL WEATHER SERVICE SHOWS A MULTIPLE VORTEX TORNADO DEVELOPING OVER LAKE MURRAY APPROXIMATELY 0.5 MILES WEST OF DREHER ISLAND STATE PARK. THE GROUND SURVEY INDICATED SEVERAL TREES SNAPPED OR UPROOTED ON SASSAFRAS LANE... ONE OF WHICH FELL ON A HOME DAMAGING THE ROOF. THE TORNADO THEN MOVED NORTHEAST... CROSSING AT THE ENTRANCE TO DREHER ISLAND STATE PARK... WHERE IT SNAPPED OR UPROOTED MULTIPLE TREES. THE TORNADO THEN MOVED BACK ACROSS LAKE MURRAY... LIFTING NORTHWARD AND MOVING ONSHORE WHERE IT SNAPPED OR UPROOTED NUMEROUS TREES IN THE VICINITY OF GRASSY MEADOW COURT AND RB BAKER DRIVE. ALONG BACKWATER COURT THE DOWNED TREES HIT THE ROOF OF TWO HOMES... DESTROYED THE ROOF OF A BOAT HOUSE AND DAMAGED THE BOAT INSIDE... AND A
NWS Tornado Report Location: 7 SW Chapin, SC
UNKcategory
Aug 17, 2021 7:49 PM UTC
Tornado report for August 17, 2021
Newberry County · 12,860 Homes in County
Tornado Report Description: CALLER REPORTS AN LINE AROUND 20FT IN DIAMETER OF DOWNED WHEAT. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 6 SSW Little Mountain, SC
UNKcategory
Aug 17, 2021 7:33 PM UTC
Tornado report for August 17, 2021
Lexington County · 91,782 Homes in County
Tornado Report Description: A NATIONAL WEATHER SERVICE STORM SURVEY TEAM CONFIRMED AN EF0 TORNADO... WITH PEAK WIND SPEEDS OF 75 MPH... NORTH OF LEESVILLE IN LEXINGTON COUNTY... SC... NEAR THE SALUDA COUNTY BORDER. THE TORNADO PRODUCED SPORADIC AND MAINLY MINOR TREE DAMAGE AS IT MOVED NORTHWARD FROM NEAR DERRICK HOLLOW ROAD TO NEAR HOLLEY FERRY ROAD AND HIGHWAY 378. DRONE VIDEO PROVIDED TO THE NATIONAL WEATHER SERVICE CONFIRMS THIS TORNADO... WHICH WAS ONGOING AT THE SAME TIME AS A TORNADO JUST TO ITS EAST.
NWS Tornado Report Location: 4 NNE Leesville, SC
UNKcategory
Aug 17, 2021 7:31 PM UTC
Tornado report for August 17, 2021
Lexington County · 91,782 Homes in County
Tornado Report Description: A NATIONAL WEATHER SERVICE STORM SURVEY TEAM CONFIRMED AN EF0 TORNADO... WITH PEAK WIND SPEEDS OF 75 MPH... JUST SOUTH OF LAKE MURRAY IN LEXINGTON COUNTY... SC. THE TORNADO PRODUCED SPORADIC AND MAINLY MINOR TREE DAMAGE ALONG ITS PATH AS IT MOVED NORTHWARD FROM NEAR WINDMILL ROAD... ACROSS DEVILS BACKBONE ROAD AND RIDGE ROAD BEFORE DISSIPATING NEAR HIGHWAY 378 AT LAKE MURRAY BETWEEN ROCKY RIDGE ROAD AND ADAMS PARK ROAD. DRONE VIDEO PROVIDED TO THE NATIONAL WEATHER SERVICE CONFIRMS THIS TORNADO... WHICH WAS ONGOING AT THE SAME TIME AS A TORNADO JUST TO ITS WEST.
NWS Tornado Report Location: 3 NW Summit, SC
UNKcategory
Aug 17, 2021 6:52 PM UTC
Tornado report for August 17, 2021
Greenville County · 157,677 Homes in County
Tornado Report Description: EMERGENCY MANAGER REPORTS STRUCTURAL DAMAGE TO SEVERAL BUILDINGS IN AND NEAR MAULDIN.
NWS Tornado Report Location: Mauldin, SC
UNKcategory
Aug 17, 2021 5:36 PM UTC
Tornado report for August 17, 2021
Edgefield County · 7,607 Homes in County
Tornado Report Description: EDGEFIELD 911 CALL CENTER REPORTS TREES AND POWER LINES DOWN NEAR MOORE ROAD.
NWS Tornado Report Location: 5 NW Edgefield, SC
UNKcategory
Aug 17, 2021 5:15 PM UTC
Tornado report for August 17, 2021
Wilkes County · 21,577 Homes in County
Tornado Report Description: EMERGENCY MANAGEMENT AND RONDA VOLUNTEER FIRE DEPARTMENT REPORTED SEVERAL TREES DOWN NEAR RONDA AND OBSERVED A BRIEF TORNADO TOUCH DOWN. A HOUSE WAS ALSO DAMAGED ON CLINGMAN ROAD AS WELL AS A ROOF TO A CHICKEN HOUSE.
NWS Tornado Report Location: 1 NNW Ronda, NC
UNKcategory
Aug 17, 2021 5:03 PM UTC
Tornado report for August 17, 2021
Edgefield County · 7,607 Homes in County
Tornado Report Description: A NATIONAL WEATHER SERVICE STORM SURVEY TEAM CONFIRMED AN EF1 TORNADO... WITH PEAK WINDS OF 90 MPH... WEST-NORTHWEST OF MURPHYS ESTATES IN EDGEFIELD COUNTY... SC. THE TORNADO BEGAN NEAR BRIGGS ROAD... WHERE IT SNAPPED AND UPROOTED MULTIPLE TREES AND DESTROYED A SMALL SHED. THE TORNADO THEN CONTINUED NORTH-NORTHEAST... CROSSING BIG BRANCH COURT AND MOORE ROAD... WHERE IT SNAPPED MULTIPLE SOFTWOOD TREES. THE SURVEY TEAM WAS NOT ABLE TO CONFIRM ANY ADDITIONAL DAMAGE NORTH OF THIS IMMEDIATE AREA DUE TO A LACK OF ACCESS FROM THE GROUND. HOWEVER... THE SOUTH CAROLINA FORESTRY COMMISSION ASSISTED THE SURVEY USING A FIXED WING AIRCRAFT AND WAS NOT ABLE TO DETERMINE ANY ADDITIONAL AREAS WITH SIGNIFICANT DAMAGE. THE SURVEY TEAM DID NOTE ISOLATED TREE DAMAGE ALONG DRY BRIDGE ROAD AND REPUBLICAN ROAD... BUT THERE IS NOT ENOUGH EVIDENCE THAT THIS WAS THE RESULT A TORNADO AT THIS TIME.
Tornado Report Description: TORNADO ON THE GROUND NEAR SMITH FARM ROAD WITH TREES DOWN AND DAMAGE TO NEARBY HOUSES AND BUILDINGS.
NWS Tornado Report Location: 1 S Stony Point, NC
UNKcategory
Aug 17, 2021 3:06 PM UTC
Tornado report for August 17, 2021
Iredell County · 58,207 Homes in County
Tornado Report Description: TORNADO REPORTED ON THE GROUND WITH TREES BLOWN DOWN.
NWS Tornado Report Location: 5 ENE Catawba, NC
UNKcategory
Aug 17, 2021 2:28 PM UTC
Tornado report for August 17, 2021
Banks County · 5,377 Homes in County
Tornado Report Description: MUTLIPLE REPORTS OF DAMAGE ALONG PAYNE ROAD. BARN DESTROYED ALONG WITH STRUCTURAL FIRE. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 3 SSW Pinefield Crossro, GA
UNKcategory
Aug 17, 2021 2:26 PM UTC
Tornado report for August 17, 2021
Banks County · 5,377 Homes in County
Tornado Report Description: EM REPORT OF A MOBILE HOME DESTROYED ALONG BENNETT ROAD. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 4 E Homer, GA
UNKcategory
Aug 17, 2021 10:37 AM UTC
Tornado report for August 17, 2021
Baldwin County · 11,378 Homes in County
Tornado Report Description: TREE BLOCKING THE ROAD AT EDWARD HILL RD
NWS Tornado Report Location: 4 SE Haddock, GA
UNKcategory
Aug 17, 2021 10:28 AM UTC
Tornado report for August 17, 2021
Baldwin County · 11,378 Homes in County
Tornado Report Description: REPORT OF A FEW TREES DOWNED NEAR UNION HILL CHURCH RD AND KITCHENS RD
NWS Tornado Report Location: 4 WSW Coopers, GA
UNKcategory
Aug 17, 2021 10:23 AM UTC
Tornado report for August 17, 2021
Greene County · 8,180 Homes in County
Tornado Report Description: MULTIPLE REPORTS OF DAMAGE... MAINLY TREES DOWN WITH MINOR STRUCTURAL DAMAGE... IN THE ARROWHEAD SUBDIVISION. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 3 ESE Greshamville, GA
UNKcategory
Aug 17, 2021 9:51 AM UTC
Tornado report for August 17, 2021
Twiggs County · 2,426 Homes in County
Tornado Report Description: MULTIPLE TREES DOWNED NEAR PROSPECT CHURCH RD AND HWY 96
NWS Tornado Report Location: 2 NNE District Path, GA
UNKcategory
Aug 17, 2021 9:48 AM UTC
Tornado report for August 17, 2021
Twiggs County · 2,426 Homes in County
Tornado Report Description: MULTIPLE REPORTS OF DAMAGE IN THE AREA OF MISSLE BASE RD. BOATS OVERTURNED AT ACADEMY SPORTS DISTRIBUTION CENTER...DAMAGE TO A NEARBY PUMP HOUSE...AND A TRACTOR TRAILER OVERTURNED ON I-16 NEAR EXIT 24.
NWS Tornado Report Location: 1 NE District Path, GA
UNKcategory
Aug 17, 2021 8:34 AM UTC
Tornado report for August 17, 2021
Meriwether County · 6,686 Homes in County
Tornado Report Description: REPORTS OF SEVERAL VERY LARGE TREES DOWN ACROSS COLEMAN CREEK CIRCLE ASSOCIATED WITH A RADAR CONFIRMED TORNADIC CIRCULATION AROUND 4:34 AM EDT
NWS Tornado Report Location: 3 WSW Rocky Mount, GA
UNKcategory
Aug 17, 2021 5:25 AM UTC
Tornado report for August 17, 2021
Sumter County · 8,122 Homes in County
Tornado Report Description: LIKELY TORNADO DAMAGE NEAR PINECREST DR AND SHARON DR IN AMERICUS. MANY TREES DOWN... SEVERAL ON STRUCTURES.
NWS Tornado Report Location: 1 NE Americus, GA
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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, 2021 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, 2021? 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.
How many storm reports were recorded on August 17, 2021?
Our records show 1 hail, 61 wind, and 25 tornado reports on August 17, 2021, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 17, 2021.
What was the largest hail reported on August 17, 2021?
The largest hail size in these storm-report records on August 17, 2021 is 2.00″, reported near Beaver, UT.
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, 2021 — 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, 2021 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, 2021?
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, 2021 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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