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NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA

Hail, Wind & Tornado Reports in Knox County, IN

Public hail, wind, and tornado reports across Knox County, IN from November 15, 1955 through August 27, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 55401 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
96
Wind Reports
319
Tornado Reports
29
Max Hail Size
2.50″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Knox County, IN · 1955–present Updated  Daily · last Aug 27, 2026

Latest NWS Hail Reports in Knox County

30 reports
Free hail report for your home →
2.00″ hail
Mar 23, 2026
1:45 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: Numerous public photos of 1.8 to 2.0 inch hail in Bicknell area. Time estd from radar.
NWS Hail Report Location: Bicknell, IN
1.70″ hail
Mar 23, 2026
1:45 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: Multiple photos of 1.3-1.7 inch hail in Bicknell. Time estd from radar.
NWS Hail Report Location: Bicknell, IN
1.00″ hail
Mar 23, 2026
1:42 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: Time estimated from radar.
NWS Hail Report Location: Bruceville, IN
1.25″ hail
Mar 4, 2026
2:44 PM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: Time estimated from radar.
NWS Hail Report Location: Oaktown, IN
1.00″ hail
Mar 31, 2024
1:02 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 5 NE Decker, IN
1.00″ hail
Mar 31, 2024
12:57 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 NNW Decker, IN
1.00″ hail
Feb 29, 2024
7:39 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: Relayed via social media. Time estimated from radar.
NWS Hail Report Location: Freelandville, IN
1.00″ hail
Aug 7, 2023
2:04 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 S Bruceville, IN
1.75″ hail
Jun 30, 2023
11:45 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: Two reports near the same location.
NWS Hail Report Location: 4 SSW Vincennes, IN
1.00″ hail
May 19, 2022
9:52 PM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 4 E Vincennes, IN
1.50″ hail
May 19, 2022
9:45 PM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 WSW Vincennes, IN
1.00″ hail
May 19, 2022
9:40 PM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Vincennes, IN
2.00″ hail
May 19, 2022
9:30 PM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: REPORT WITH A PICTURE SHOWING AROUND 2 INCH HAIL JUST NORTH OF SANDBORN... IN.
NWS Hail Report Location: 1 N Sandborn, IN
1.00″ hail
Apr 10, 2020
1:18 AM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: REPORT FROM MPING: QUARTER (1.00 IN.).
NWS Hail Report Location: 4 S Bruceville, IN
1.00″ hail
Jun 10, 2018
9:50 PM UTC
Hail report for Knox County, IN
Knox County · 12,667 Homes in County
Hail Report Description: LASTED UNTIL ABOUT 600 PM. REPORTED RECEIVED VIA TWITTER.
NWS Hail Report Location: 2 SW Decker, IN
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 27, 2026
2:00 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Tree down near the intersection of Cates Road and South Debord Road. Time estimated from radar.
NWS Wind Report Location: 2 Ene Monroe City, IN
UNK mph
Aug 12, 2026
7:05 PM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Possible tornado. Debris in the air and trees blown down.
NWS Wind Report Location: 3 Nnw Bruceville, IN
UNK mph
Aug 11, 2026
11:00 PM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Outflow winds knocked down a tree. Time estimated from radar.
NWS Wind Report Location: Vincennes, IN
UNK mph
Aug 11, 2026
10:50 PM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Thunderstorm outflow winds downed a tree onto a patio.
NWS Wind Report Location: Wheatland, IN
UNK mph
Jul 28, 2026
12:58 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: T-storm winds downed tree at Main and Church Streets. Time estimated from radar.
NWS Wind Report Location: Oaktown, IN
UNK mph
Jul 27, 2026
2:49 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: TRW winds downed a tree on Camp Arthur Road near Ford Road. Time estimated by radar.
NWS Wind Report Location: 3 Wnw Bruceville, IN
UNK mph
Jun 21, 2026
11:24 PM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Downed trees and utility lines scattered around Vincennes. Time is estimated from radar.
NWS Wind Report Location: Vincennes, IN
UNK mph
Jun 21, 2026
11:09 PM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Scattered trees and utility lines down in and north of town. Time is estimated from radar.
NWS Wind Report Location: Bicknell, IN
UNK mph
Jun 18, 2026
5:18 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Tree down with partial road blockage.
NWS Wind Report Location: Bicknell, IN
UNK mph
Jun 18, 2026
5:15 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Limb fell on side of house also causing a gas leak.
NWS Wind Report Location: Bruceville, IN
UNK mph
Apr 28, 2026
3:22 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: 2 trees downed... one near 5th street and one near 15th street.
NWS Wind Report Location: Vincennes, IN
UNK mph
Apr 28, 2026
3:17 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Tree down over road. Time estimated from radar.
NWS Wind Report Location: Bruceville, IN
UNK mph
Apr 28, 2026
3:10 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: 2 trees downed... one near 5th street and one near 15th street.
NWS Wind Report Location: Vincennes, IN
UNK mph
Apr 28, 2026
12:14 AM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Late report of t-storm winds downed tree at Southwest Purdue Ag Center. Time estimated from radar.
NWS Wind Report Location: 4 WSW Bruceville, IN
UNK mph
Apr 27, 2026
8:43 PM UTC
Wind report for Knox County, IN
Knox County · 12,667 Homes in County
Wind Report Description: Tree over roadway.
NWS Wind Report Location: 3 NNE Vincennes Univers, IN
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

29 reports
UNK category
Aug 12, 2026
7:03 PM UTC
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: A brief EF-1 tornado with estimated peak winds of 100 mph impacted several groves of trees and an outbuilding. There were multiple videos of the tornado and drone footage showed many trees snapped al
NWS Tornado Report Location: 3 Nnw Bruceville, IN
UNK category
Jun 21, 2026
11:00 PM UTC
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: Late report of an EF-0 tornado with path length of 0.30 miles and a maximum path width of 80 yards that began at this location. The peak winds were 85 mph with damage mainly to large tree limbs and metal outbuilding roofs.
NWS Tornado Report Location: 3 WNW Bicknell, IN
UNK category
May 23, 2022
2:54 AM UTC
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: DELAYED REPORT. NWS SURVEY FOUND EF2 TORNADO DAMAGE ALONG A 26 MILE PATH FROM ILLINOIS INTO INDIANA. MAX ESTIMATED WIND SPEEDS WITH THE TORNADO WERE 115 MPH. DAMAGE IN KNOX COUNTY INDIANA WAS ONLY EF1 WITH THE MOST SEVERE DAMAGE IN DECKER.
NWS Tornado Report Location: Decker, IN
UNK category
Feb 7, 2019
4:56 PM UTC
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: POSSIBLE TORNADO DAMAGE AT 9373 SOUTH ST THOMAS ROAD. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 4 WNW Decker, IN
UNK category
Feb 7, 2019
4:48 PM UTC
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: CONFIRMED TORNADO DAMAGE AT 4222 BAND MILL ROAD. DAMAGE CURRENTLY ESTIMATED AT EF0 DAMAGE BASED ON PHOTOS OF DAMAGE.
NWS Tornado Report Location: 5 WNW Decker, IN
UNK category
Feb 7, 2019
4:47 PM UTC
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: POSSIBLE TORNADO DAMAGE AT 10026 SOUTH BEAL ROAD. TIME ESTIMATED FROM RADAR.
NWS Tornado Report Location: 6 W Decker, IN
EF2 category
Nov 17, 2013
2:56 PM EST-5
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: At 1456EST, this EF-2 tornado touched down 4.5 miles west-northwest of Decker. The most extensive damage was found north of Decker along Old Decker Road, just to the east of Route 41. The second story of a home was removed with the exterior walls collapsed. This tornado continued until it was 6 miles southeast of Vincennes at 1506EST. The estimated maximum wind speed with this EF-2 tornado was 130 mph.
NWS Tornado Report Location: 3.1 SSE Beal, IN
EF1 category
Apr 19, 2011
9:54 PM EST-5
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: An EF-1 tornado touched down south of the town of Beal in Knox county. A 60 by 100 foot building was blown away on South Wabash River Road due to this tornado. Also, multiple high tension towers and lines were downed south of Beal. Another structure had windows blown in.
NWS Tornado Report Location: 1 NW Decker, IN
EF0 category
Mar 8, 2009
1:48 PM EST-5
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: This tornado crossed over into Knox County from Lawrence County, IL. Information shown here reflects only the time the tornado was in Knox County. The affected area in Indiana was very short and remote with no known residences or other man-made structures. Tree damage was noted.
NWS Tornado Report Location: 3.51 W Emison, IN
F2 category
Sep 20, 2002
11:37 AM EST
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 6 SW Monroe City, IN
F0 category
Jun 29, 1998
7:58 PM EST
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Edwardsport, IN
F0 category
May 28, 1996
4:09 PM EST
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: S Vincennes, IN
F0 category
Apr 19, 1996
10:15 PM EST
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 10 N Vincennes, IN
F1 category
Aug 3, 1991
3:05 PM EST
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IN
F4 category
Jun 2, 1990
6:59 PM CST
Tornado report for Knox County, IN
Knox County · 12,667 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Not provided, IN
Showing 15 of 29
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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Wind
Tornado

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Browse Cities with NWS Storm Reports in Knox County

Vincennes, IN 160
Hail, wind & tornado reports
Bicknell, IN 53
Hail, wind & tornado reports
Decker, IN 45
Hail, wind & tornado reports
Bruceville, IN 43
Hail, wind & tornado reports
Monroe City, IN 40
Hail, wind & tornado reports
Freelandville, IN 24
Hail, wind & tornado reports
Oaktown, IN 21
Hail, wind & tornado reports
Wheatland, IN 21
Hail, wind & tornado reports
Edwardsport, IN 8
Hail, wind & tornado reports
Emison, IN 8
Hail, wind & tornado reports
Sandborn, IN 8
Hail, wind & tornado reports
Westphalia, IN 2
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Knox County, IN area census snapshot

People & households
Population36,108
Households15,110
Housing units16,965
Income
Median household income$58,863
$100k+ households33.5%
$150k+ households10.3%
Housing stock
Single-family detached12,667
Attached single-family144
Small multifamily2,412
Large multifamily910
Mobile homes832
Housing mix
Single-family share74.7%
Attached-home share0.9%
Multifamily share19.6%
Mobile-home share4.9%
Ownership & occupancy
Owner-occupied9,955
Renter-occupied5,155
Vacant units1,855
Home value & age
Median home value$123,500
Owner homes $300k+9.6%
Owner homes $500k+2.4%
Owner homes $750k+0.9%
Median year built1963
Older-home share70.9%
Vehicle context
Households with cars13,896
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

47591 195
Vincennes, IN Hail, wind & tornado reports
47512 56
Ragsdale, IN Hail, wind & tornado reports
47516 36
Emison, IN Hail, wind & tornado reports
47561 31
Emison, IN Hail, wind & tornado reports
47557 29
Monroe City, IN Hail, wind & tornado reports
47524 26
Decker, IN Hail, wind & tornado reports
47597 25
Wheatland, IN Hail, wind & tornado reports
47535 20
Freelandville, IN Hail, wind & tornado reports
47528 10
Freelandville, IN Hail, wind & tornado reports
47578 9
Sandborn, IN Hail, wind & tornado reports
47596 2
Westphalia, IN 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 96 hail, 319 wind, and 29 tornado reports in Knox County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on August 27, 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 Fritchton, IN on May 21, 2010.

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, IN, 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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