Heads up! Small hail spotted in these regions: Sebring, FL • North Port, FL • Fayetteville, NC • Durham, NC • Champaign, IL • Charlotte, NC • Fort Myers, FL • Lakeland, FL • Mattoon, IL • Owensboro, KY • Evansville, IN • Knoxville, TN • Corpus Christi, TX      ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Farmington, NM • Louisville, KY • Winston, NC • Greensboro, NC • Rock Springs, WY • Provo, UT • Logan, UT • Ogden, UT • Salt Lake City, UT      
HailGeeks
NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in Knox County, KY

Public hail, wind, and tornado reports across Knox County, KY from April 4, 1974 through August 17, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 40701 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
50
Wind Reports
179
Tornado Reports
3
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Knox County, KY · 1974–present Updated  Daily · last Aug 17, 2026

Latest NWS Hail Reports in Knox County

30 reports
Free hail report for your home →
1.50″ hail
May 8, 2025
10:15 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Re-sends previous hail report from Bryants Store due to IRIS error message. Pictures on social media of ping pong ball sized hail from 6:15 pm in the Little Poplar Creek region of Bryants Store KY. Time confirmed via radar.
NWS Hail Report Location: Bryants Store, KY
1.00″ hail
May 8, 2025
10:06 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Social media picture of a few quarter sized hail stones in Barbourville amongst piles of smaller hail on the ground. Time provided was 6:06 pm and radar corroborates this.
NWS Hail Report Location: Barbourville, KY
1.50″ hail
May 8, 2025
9:15 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Corrects time. Re-sends previous hail report from Bryants Store due to IRIS error message. Pictures on social media of ping pong ball sized hail from 5:15 pm in the Little Poplar Creek region of Bryants Store KY. Time confirmed via radar.
NWS Hail Report Location: Bryants Store, KY
1.00″ hail
May 8, 2025
8:06 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Public shared video of small hailstones... with larger quarter sized hail embedded. This occurred on Ky-225 in Trosper near the intersection of Number One Hollow Road. Time estimated by radar.
NWS Hail Report Location: Trosper, KY
2.00″ hail
May 8, 2025
8:03 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Social media pictures of at least egg sized hail in Trosper around 4pm. The hail broke car windshields. Time estimated to be 4:03pm via radar.
NWS Hail Report Location: Trosper, KY
1.25″ hail
Sep 24, 2024
11:10 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Hail fell along KY 11 near the Clay County border and was estimated to be between quarter and golf ball sized.
NWS Hail Report Location: Woollum, KY
1.75″ hail
Sep 24, 2024
10:50 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Gray, KY
1.00″ hail
Aug 7, 2023
4:42 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: Public report of 1 inch hail was relayed via social media. Time estimated from radar.
NWS Hail Report Location: Bimble, KY
1.00″ hail
May 19, 2022
8:54 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: QUARTER INCH HAIL WAS REPORTED. NWS TRAINED STORM SPOTTER WAS CONTACTED FOR VERIFICATION.
NWS Hail Report Location: 1 E Old Flat Lick, KY
1.00″ hail
Jun 26, 2018
6:53 PM UTC
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: MEASURED 2.10 INCHES OF RAIN.
NWS Hail Report Location: 2 WNW Permon, KY
1.25″ hail
Apr 26, 2012
5:16 PM EST-5
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .55 E Barbourville, KY
1.25″ hail
Apr 26, 2012
5:09 PM EST-5
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: .55 E Barbourville, KY
1.00″ hail
Mar 15, 2012
5:08 AM EST-5
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Girdler, KY
1.00″ hail
Mar 15, 2012
4:05 AM EST-5
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Gray, KY
1.00″ hail
Feb 29, 2012
4:31 PM EST-5
Hail report for Knox County, KY
Knox County · 7,895 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: N Barbourville, KY
Showing 15 of 30
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.

Latest NWS Wind Reports in Knox County

30 reports
Free hail report + wind check →
UNK mph
Aug 17, 2026
3:02 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Public report of a small tree down near this location. Time estimated via radar.
NWS Wind Report Location: 1 Nw Yeager, KY
UNK mph
Aug 13, 2026
12:55 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County dispatch reports downed trees on Callebs Creek about 1/4 mile up from its intersection with KY-1304. A stronger-worded SPS was in effect_ the storm was weakening. Time estimated via radar
NWS Wind Report Location: 1 E Girdler, KY
UNK mph
Aug 13, 2026
12:54 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County dispatch reports a downed tree on Millers Road. Exact report location estimated with Street View. Time estimated via radar. A stronger-worded SPS was in effect_ the storm was weakening.
NWS Wind Report Location: 1 Wnw Heidrick, KY
UNK mph
Aug 13, 2026
12:37 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County dispatch received reports of a downed tree along Buffalo Branch Road in Corbin. The road is also known as Rocky Branch Road. Exact location estimated via Street View. Time estimated via r
NWS Wind Report Location: 2 Sw Lynn Camp, KY
UNK mph
Aug 13, 2026
12:33 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County dispatch received reports of a downed tree on Moore Hill Avenue near the intersection with Ott Road. Time estimated via radar.
NWS Wind Report Location: 1 Nnw Moore Hill, KY
UNK mph
Aug 12, 2026
1:30 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Trees fell on powerline in the 4000 block of north Ky-11.
NWS Wind Report Location: 1 Ne Cannon, KY
UNK mph
Jul 28, 2026
4:00 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County dispatch reports downed trees with powerlines affected along US-25E in Flat Lick. This corroborates with many social media reports of a power outage in Flat Lick beginning at midnight. Ti
NWS Wind Report Location: 1 Sw Old Flat Lick, KY
UNK mph
Mar 16, 2026
6:50 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Tree down along Little Indian Creek Road and KY 6. Time estimated by radar.
NWS Wind Report Location: 2 WSW Indian Creek, KY
UNK mph
Dec 19, 2025
3:49 AM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Little Poplar Creek Volunteer Fire Department posted that they responded to downed trees blocking the roadway near the intersection of KY-11 South and KY-1530. Time estimated via radar.
NWS Wind Report Location: 1 N King, KY
UNK mph
Oct 19, 2025
6:11 PM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Reports of tree and power line damage all up and down KY 223 and KY 718. Time estimated from radar.
NWS Wind Report Location: 1 NE Walker, KY
UNK mph
Oct 19, 2025
6:11 PM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Tree damage was reported at the corner of 223 and Moore Creek Road.
NWS Wind Report Location: 1 SW Dewitt, KY
UNK mph
Oct 19, 2025
6:11 PM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Trees reported down on AJ Gray Cemetery Road... near Flat Lick. Time estimated from radar.
NWS Wind Report Location: Flat Lick, KY
UNK mph
Oct 19, 2025
6:10 PM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Trees were reported down on Possum Hollow road... time estimated from radar.
NWS Wind Report Location: 1 SSW Flat Lick, KY
UNK mph
Jul 31, 2025
11:30 PM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County Dispatch received a report of downed trees off KY-6 and KY-459 near Gray Lane from a thunderstorm at 7:30pm.
NWS Wind Report Location: 1 SW Dishman Springs, KY
UNK mph
Jul 31, 2025
11:14 PM UTC
Wind report for Knox County, KY
Knox County · 7,895 Homes in County
Wind Report Description: Knox County dispatch reports a downed tree on KY 3441 from the thunderstorms earlier this evening.
NWS Wind Report Location: 1 S Barbourville, KY
Showing 15 of 30
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.

Latest NWS Tornado Reports in Knox County

3 reports
UNK category
May 26, 2024
5:48 PM UTC
Tornado report for Knox County, KY
Knox County · 7,895 Homes in County
Tornado Report Description: Corrects previous tstm wnd dmg report from Siler. NWS Damage Survey Team concluded a tornado touched down near the Legacy Chevrolet and continued on towards Lynn Camp Middle/High School. Time determined by surveillance video and radar.
NWS Tornado Report Location: Siler, KY
F1 category
May 31, 2004
1:15 AM EST
Tornado report for Knox County, KY
Knox County · 7,895 Homes in County
Tornado Report Description: A tornado touched down near Erose along Highway 718. The tornado was on the ground for 1, 338 feet. Numerous trees were blown down and three homes were damaged.
NWS Tornado Report Location: Erose, KY
F1 category
May 31, 2004
1:05 AM EST
Tornado report for Knox County, KY
Knox County · 7,895 Homes in County
Tornado Report Description: A tornado, 210 feet wide, briefly touched down just south of Hammond. It lifted, and touched down again near Hammond. Numerous trees were down and two trailers, two homes, and on garage were damaged.
NWS Tornado Report Location: 1 S Hammond, KY
Showing 3 of 3
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 in Knox County on the Interactive Map

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Hail
Wind
Tornado

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Browse Cities with NWS Storm Reports in Knox County

Barbourville, KY 177
Hail, wind & tornado reports
Flat Lick, KY 29
Hail, wind & tornado reports
Artemus, KY 22
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Knox County, KY area census snapshot

People & households
Population30,034
Households11,326
Housing units13,824
Income
Median household income$33,153
$100k+ households19.7%
$150k+ households4.9%
Housing stock
Single-family detached7,895
Attached single-family30
Small multifamily1,168
Large multifamily433
Mobile homes4,290
Housing mix
Single-family share57.1%
Attached-home share0.2%
Multifamily share11.6%
Mobile-home share31.0%
Ownership & occupancy
Owner-occupied7,425
Renter-occupied3,901
Vacant units2,498
Home value & age
Median home value$109,200
Owner homes $300k+8.4%
Owner homes $500k+2.2%
Owner homes $750k+1.4%
Median year built1985
Older-home share41.2%
Vehicle context
Households with cars9,935
Free hail maps

This snapshot is for local area context only and describes the selected state, county, city, or ZIP area — not a specific home or property. For ZIP-level estimated hail impact, use Free Hail Maps to generate a hail report with key impact details for that ZIP.

Top ZIP Codes with NWS Storm Reports in Knox County

40701 187
Corbin, KY Hail, wind & tornado reports
40906 109
Barbourville, KY Hail, wind & tornado reports
40734 29
KY Hail, wind & tornado reports
40759 25
Rockholds, KY Hail, wind & tornado reports
40935 20
Flat Lick, KY Hail, wind & tornado reports
40771 12
Corbin, KY Hail, wind & tornado reports
40923 8
KY Hail, wind & tornado reports
40763 7
KY Hail, wind & tornado reports
40953 7
KY Hail, wind & tornado reports
40997 6
KY Hail, wind & tornado reports
40915 4
Barbourville, KY Hail, wind & tornado reports
40921 4
KY Hail, wind & tornado reports
40943 4
KY Hail, wind & tornado reports
40903 3
Artemus, KY Hail, wind & tornado reports
40939 3
KY Hail, wind & tornado reports
40982 2
KY Hail, wind & tornado reports
40995 2
KY Hail, wind & tornado reports
40946 1
KY Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in Knox County? 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 hail, wind, and tornado reports does Knox County have on record?

Our records show 50 hail, 179 wind, and 3 tornado reports in Knox County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 17, 2026.

What is the largest hail ever reported in Knox County?

The largest hail size in these storm-report records in Knox County is 2.50″. It was reported near Knox County, KY on March 31, 1993.

A storm report showed up near my home in Knox County — does that mean my roof is damaged?

Not necessarily. A storm report only means hail, wind, or a tornado was observed nearby; it does not confirm damage at any specific address, and conditions change from block to block. Check an address-level hail report first, and if it looks significant, find a local pro that serves Knox County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Knox County — why should I look at its storm history?

Recent hail or wind can leave a roof or exterior with damage that is easy to miss during a walkthrough, and a recent roof replacement is sometimes an insurance job after a storm. Reviewing the storm history for a Knox County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Knox County — how does this help me?

Knowing the storm history for your address lets you answer buyer questions with confidence, document repairs you have already made, and decide whether a pre-listing roof check is worthwhile. A clear hail history removes a common sticking point during negotiations.

How do I check hail history for a specific Knox County address?

Use the address search to pull a free address-level hail report for any property in Knox County — 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 across Knox County, KY, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in Knox County, 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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