Heads up! Small hail spotted in these regions: West Palm Beach, FL • Miami, FL      ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Winston, NC • Greensboro, NC • Rock Springs, WY • Provo, UT • Logan, UT • Ogden, UT      
HailGeeks
NOAA/NWS STORM PREDICTION CENTER STORM REPORTS

Hail, Wind & Tornado Reports on March 21, 2017

Public hail, wind, and tornado reports across the United States on March 21, 2017 from March 21, 2017 through March 21, 2017, 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
143
Wind Reports
93
Tornado Reports
0
Max Hail Size
3.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  United States · March 21, 2017 · 2017–present Updated  Daily · last Mar 21, 2017

NWS Hail Reports on March 21, 2017

143 reports
Free hail report for your home →
1.00″ hail
Mar 21, 2017
11:47 PM UTC
Hail report for March 21, 2017
Catoosa County · 20,585 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Pleasant Grove, GA
1.00″ hail
Mar 21, 2017
11:37 PM UTC
Hail report for March 21, 2017
Madison County · 125,294 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Hazel Green, AL
1.00″ hail
Mar 21, 2017
11:35 PM UTC
Hail report for March 21, 2017
Barrow County · 26,454 Homes in County
Hail Report Description: LOCAL FARM REPORTED ONE INCH HAIL ALONG FINCH ROAD.
NWS Hail Report Location: 4 SW Arcade, GA
1.00″ hail
Mar 21, 2017
11:34 PM UTC
Hail report for March 21, 2017
Gwinnett County · 238,949 Homes in County
Hail Report Description: PENNY TO QUARTER SIZED HAIL REPORTS IN GWINNET COUNTY. QUARTER SIZED HAIL REPORTED SOUTH SIDE OF DACULA
NWS Hail Report Location: 1 N Saddleback Estates, GA
1.00″ hail
Mar 21, 2017
11:29 PM UTC
Hail report for March 21, 2017
Marshall County · 31,801 Homes in County
Hail Report Description: ONE INCH HAIL WAS REPORTED 2.2 SW OF GUNTERSVILLE.
NWS Hail Report Location: 2 S Guntersville, AL
1.00″ hail
Mar 21, 2017
11:25 PM UTC
Hail report for March 21, 2017
Clarke County · 27,933 Homes in County
Hail Report Description: A LOCAL NURSERY REPORTS QUARTER SIZED HAIL ALONG BARNETT SHOALS RD AND HANCOCK LN.
NWS Hail Report Location: Barch Estates, GA
1.00″ hail
Mar 21, 2017
11:25 PM UTC
Hail report for March 21, 2017
Franklin County · 6,718 Homes in County
Hail Report Description: POLICE OFFICER RELAYED REPORT OF QUARTER SIZE HAIL TO THE 911 CENTER.
NWS Hail Report Location: Royston, GA
1.50″ hail
Mar 21, 2017
11:21 PM UTC
Hail report for March 21, 2017
Greenville County · 157,677 Homes in County
Hail Report Description: 1.5 INCH HAIL IN THE SHELBOURNE FARMS NEIGHBORHOOD IN GREER
NWS Hail Report Location: 3 SSW Greer, SC
1.50″ hail
Mar 21, 2017
11:20 PM UTC
Hail report for March 21, 2017
Knox County · 141,465 Homes in County
Hail Report Description: PING PONG SIZE HAIL
NWS Hail Report Location: Powell, TN
1.00″ hail
Mar 21, 2017
11:17 PM UTC
Hail report for March 21, 2017
Clarke County · 27,933 Homes in County
Hail Report Description: PUBLIC RELAYED QUARTER SIZED HAIL REPORT VIA TWITTER IN WINTERVILLE
NWS Hail Report Location: Winterville, GA
1.00″ hail
Mar 21, 2017
11:15 PM UTC
Hail report for March 21, 2017
Madison County · 8,114 Homes in County
Hail Report Description: HAIL RELAYED VIA MEDIA SOCIAL MEDIA PAGE UP TO A QUARTER IN SIZE
NWS Hail Report Location: Danielsville, GA
3.00″ hail
Mar 21, 2017
11:15 PM UTC
Hail report for March 21, 2017
Spartanburg County · 102,154 Homes in County
Hail Report Description: 3 INCH HAILSTONE ABOUT HALF A MILE SOUTH OF THE GSP AIRPORT.
NWS Hail Report Location: 3 SSE Greer, SC
1.75″ hail
Mar 21, 2017
11:15 PM UTC
Hail report for March 21, 2017
Knox County · 141,465 Homes in County
Hail Report Description: GOLF BALL HAIL NEAR CLINTON HIGHWAY AND SCHAD ROAD
NWS Hail Report Location: Powell, TN
2.00″ hail
Mar 21, 2017
11:12 PM UTC
Hail report for March 21, 2017
Loudon County · 20,850 Homes in County
Hail Report Description: 2 INCH HAIL
NWS Hail Report Location: 4 N Lenoir City, TN
1.25″ hail
Mar 21, 2017
11:12 PM UTC
Hail report for March 21, 2017
Hamilton County · 113,002 Homes in County
Hail Report Description: HALF DOLLAR SIZE HAIL
NWS Hail Report Location: 15 NW Cleveland, TN
Showing 15 of 143
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 March 21, 2017

93 reports
Free hail report + wind check →
UNK mph
Mar 21, 2017
11:58 PM UTC
Wind report for March 21, 2017
Elbert County · 6,025 Homes in County
Wind Report Description: SPOTTER REPORTED A FEW TREES DOWN. TIME ESTIMATED FROM RDAR.
NWS Wind Report Location: 2 N Elberton, GA
UNK mph
Mar 21, 2017
11:57 PM UTC
Wind report for March 21, 2017
Pickens County · 11,910 Homes in County
Wind Report Description: AUTO SHOP GARAGE HEAVILY DAMAGED ON 3900 CAMP RD
NWS Wind Report Location: SW Jasper, GA
UNK mph
Mar 21, 2017
11:55 PM UTC
Wind report for March 21, 2017
Blount County · 47,154 Homes in County
Wind Report Description: A FEW TREES AND POWERLINES DOWN ACROSS PORTIONS OF BLOUNT COUNTY.
NWS Wind Report Location: 3 SW Seymour, TN
UNK mph
Mar 21, 2017
11:53 PM UTC
Wind report for March 21, 2017
Knox County · 141,465 Homes in County
Wind Report Description: TREE DOWN
NWS Wind Report Location: Powell, TN
UNK mph
Mar 21, 2017
11:50 PM UTC
Wind report for March 21, 2017
Gordon County · 17,632 Homes in County
Wind Report Description: ROOF DAMAGE AND TREE SPLIT ALONG HUNTS GIN RD.
NWS Wind Report Location: Hunts Corner, GA
UNK mph
Mar 21, 2017
11:48 PM UTC
Wind report for March 21, 2017
Cherokee County · 10,254 Homes in County
Wind Report Description: A LARGE TREE BLOWN DOWN ALONG HIGHWAY 273. WINDS ESTIMATED AT 50 MPH.
NWS Wind Report Location: 1 NNE Yellow Creek Fall, AL
UNK mph
Mar 21, 2017
11:48 PM UTC
Wind report for March 21, 2017
Cherokee County · 10,254 Homes in County
Wind Report Description: TRAFFIC LIGHTS ON A LINE WERE BLOWN DOWN IN LEESBURG. WINDS ESTIMATED AT 45 MPH.
NWS Wind Report Location: Leesburg, AL
UNK mph
Mar 21, 2017
11:45 PM UTC
Wind report for March 21, 2017
Gordon County · 17,632 Homes in County
Wind Report Description: ROOF DAMAGE AND TREE SPLIT ALONG HUNTS GIN RD.
NWS Wind Report Location: 4 ENE Calhoun, GA
UNK mph
Mar 21, 2017
11:43 PM UTC
Wind report for March 21, 2017
Gordon County · 17,632 Homes in County
Wind Report Description: NUMEROUS TREES AND POWERLINES DOWNED IN THE AREA AROUND TATE BEND ROAD. CHURCH WAS MISSING PART OF ITS ROOF AND AN APT COMPLEX SUSTAINED DAMAGE FROM A TREE FALLING ONTO IT.
NWS Wind Report Location: Damascus, GA
UNK mph
Mar 21, 2017
11:43 PM UTC
Wind report for March 21, 2017
Gilmer County · 14,306 Homes in County
Wind Report Description: TREES WERE REPORTED DOWN AT THE INTERSECTION OF HIGHWAY 382 AND HIGHWAY 136.
NWS Wind Report Location: 3 NNE Sweden, GA
UNK mph
Mar 21, 2017
11:42 PM UTC
Wind report for March 21, 2017
Cherokee County · 10,254 Homes in County
Wind Report Description: A LARGE TREE WAS BLOWN DOWN ALONG HIGHWAY 35. WINDS ESTIMATED AT 45 MPH.
NWS Wind Report Location: 1 NW Gaylesville, AL
UNK mph
Mar 21, 2017
11:40 PM UTC
Wind report for March 21, 2017
Chattooga County · 7,631 Homes in County
Wind Report Description: NUMEROUS TREES AND POWERLINES DOWN BETWEEN TELOGA AND TRION. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: Trion, GA
UNK mph
Mar 21, 2017
11:36 PM UTC
Wind report for March 21, 2017
Whitfield County · 26,161 Homes in County
Wind Report Description: NUMEROUS TREES DOWNED IN UNION POINT ALONG HWY 41 AND AIRPORT ROAD AREA. OVER 10000 WITHOUT POWER ACROSS WHITFIELD COUNTY
NWS Wind Report Location: Union Point, GA
UNK mph
Mar 21, 2017
11:36 PM UTC
Wind report for March 21, 2017
Catoosa County · 20,585 Homes in County
Wind Report Description: EMERGENCY MANAGER RELAYED MULTIPLE TREES DOWNED AND POWER OUTAGES IN THE RINGGOLD AREA
NWS Wind Report Location: Ringgold, GA
UNK mph
Mar 21, 2017
11:35 PM UTC
Wind report for March 21, 2017
Union County · 11,885 Homes in County
Wind Report Description: TREE DOWN ACROSS THE ROADWAY NEAR JONES CREEK ROAD AND ELISHA PAYNE CIRCLE.
NWS Wind Report Location: 1 W Jones Creek, GA
Showing 15 of 93
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 March 21, 2017

0 reports

No tornado reports were found for this selection.

Showing 0 of 0
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 March 21, 2017 on the Interactive Map

Report type
Hail
Wind
Tornado

Get a Remote Hail Inspection

Not sure if hail may have affected your home on March 21, 2017? 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 March 21, 2017?

Our records show 143 hail, 93 wind, and 0 tornado reports on March 21, 2017, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on March 21, 2017.

What was the largest hail reported on March 21, 2017?

The largest hail size in these storm-report records on March 21, 2017 is 3.00″, reported near Greer, SC.

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 March 21, 2017 — 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 March 21, 2017 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 March 21, 2017?

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 March 21, 2017 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.

Free Hail Report By Address

Check Your Address in Seconds

Free hail report for any address in the contiguous U.S.

Get a Free Hail Report

100% free. No phone or email required.