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

Hail, Wind & Tornado Reports in Delaware County, OK

Public hail, wind, and tornado reports across Delaware County, OK from May 20, 1957 through September 6, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 74331 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
252
Wind Reports
270
Tornado Reports
61
Max Hail Size
3.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  Delaware County, OK · 1957–present Updated  Daily · last Sep 6, 2026

Latest NWS Hail Reports in Delaware County

30 reports
Free hail report for your home →
1.75″ hail
Apr 28, 2026
2:43 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: Photo of mostly subsevere hail with one larger hailstone reportedly around a golf ball.
NWS Hail Report Location: 1 N Kansas, OK
1.00″ hail
Apr 26, 2026
12:26 AM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: Time estimated from Radar.
NWS Hail Report Location: 4 N Grove, OK
1.00″ hail
May 18, 2025
8:35 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 WNW Kansas, OK
1.75″ hail
May 26, 2024
9:10 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: time estimated by radar; report in the Copeland area relayed by media.
NWS Hail Report Location: 4 NNW Grove, OK
1.25″ hail
May 26, 2024
9:05 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 ESE Afton, OK
1.00″ hail
May 8, 2024
11:08 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: Report from mPING: Quarter (1.00 in.).
NWS Hail Report Location: 1 S Leach, OK
1.25″ hail
May 8, 2024
9:41 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: Report from mPING: Half Dollar (1.25 in.) time based on radar.
NWS Hail Report Location: 4 N Grove, OK
1.50″ hail
Mar 14, 2024
6:55 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 SSW Jay, OK
2.00″ hail
Mar 14, 2024
6:55 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 7 NNW Twin Oaks, OK
1.75″ hail
Mar 14, 2024
6:54 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Jay, OK
1.50″ hail
May 15, 2022
7:40 AM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: PIC VIA TWITTER.
NWS Hail Report Location: 3 S Grove, OK
1.75″ hail
Jul 12, 2020
12:32 AM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Grove, OK
2.50″ hail
May 4, 2020
2:25 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 WSW Jay, OK
1.50″ hail
May 4, 2020
2:25 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 W Jay, OK
2.50″ hail
Mar 27, 2020
9:18 PM UTC
Hail report for Delaware County, OK
Delaware County · 15,881 Homes in County
Hail Report Description: GOLF BALL TO TENNIS BALL SIZE HAIL FELL IN GROVE DAMAGING SEVERAL VEHICLES ACCORDING TO LOCAL LAW ENFORCEMENT. TIME IS ESTIMATED FROM RADAR.
NWS Hail Report Location: Grove, OK
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 Delaware County

30 reports
Free hail report + wind check →
UNK mph
Sep 6, 2026
8:00 PM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Delayed report. Photos posted to social media show large tree limbs downed and some damage to a structure under construction. Replies to the social media post show a similar level of damage around to
NWS Wind Report Location: Jay, OK
UNK mph
Aug 7, 2026
3:20 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Strong thunderstorm wind uprooted several trees_ snapped large tree limbs_ and damaged the roofs of a couple homes.
NWS Wind Report Location: 3 E Ketchum, OK
UNK mph
Jun 14, 2026
4:40 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Tree uprooted in yard south of Honey Creek Bridge. time estimated from radar.
NWS Wind Report Location: 2 SSW Grove, OK
64 mph
Jun 14, 2026
12:25 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Report relayed via broadcast media.
NWS Wind Report Location: 4 SW Maysville, OK
UNK mph
Jun 18, 2025
6:14 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Social media report indicating damage to several green houses caused by thunderstorm winds.
NWS Wind Report Location: Grove, OK
UNK mph
May 18, 2025
8:50 PM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Several very large branches broken. A few trees blown over at Natural Falls State Park.
NWS Wind Report Location: 5 W West Siloam Spring, OK
UNK mph
May 18, 2025
8:30 PM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Trees down on Daytown Rd in Kansas... OK. Timing approximated by radar.
NWS Wind Report Location: 1 WNW Kansas, OK
UNK mph
Apr 29, 2025
1:30 PM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Thunderstorm wind damage reported at Delaware County Fairgrounds and near Highway 59 & E390 Road in Jay.
NWS Wind Report Location: 2 NNE Jay, OK
UNK mph
Nov 1, 2024
3:23 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Strong thunderstorm wind uprooted a tree.
NWS Wind Report Location: 2 SSE Afton, OK
60 mph
Sep 6, 2023
3:55 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: 2 ENE Grove, OK
UNK mph
Sep 6, 2023
2:27 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Dock and boat damage at the Grand Lake Sailing Club (Diller cove).
NWS Wind Report Location: 3 SW Grove, OK
UNK mph
Sep 6, 2023
2:15 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Extensive damage to storage building. Boat dock also damaged.
NWS Wind Report Location: Grove, OK
UNK mph
Jun 20, 2023
6:46 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Report of tree and shingle damage.
NWS Wind Report Location: 4 N Grove, OK
UNK mph
Jun 20, 2023
6:35 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: Report of tree limbs... up to 3 inches in diameter broken or damaged.
NWS Wind Report Location: 3 SW Grove, OK
64 mph
Jun 18, 2023
6:55 AM UTC
Wind report for Delaware County, OK
Delaware County · 15,881 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Grove, OK
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 Delaware County

30 reports
UNK category
Jul 3, 2025
6:00 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: EF1 Tornado 8 miles northwest of Eucha... OK. Path length approximately 2.5 miles. Details to follow.
NWS Tornado Report Location: 10 NW Jay, OK
UNK category
Apr 29, 2025
1:09 PM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A tornado uprooted a few trees and snapped numerous large tree limbs. Based on this damage... it was rated EF1.
NWS Tornado Report Location: 5 SW Tiff City, OK
UNK category
Apr 29, 2025
1:03 PM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A tornado developed over Grand Lake... moved across Patricia Island... and then moved across the north side of Grove. It uprooted or snapped trees... damaged homes... destroyed outbuildings... and snapped numerous large tree limbs. Based on this damage... it was rated EF1.
NWS Tornado Report Location: 2 NE Grove, OK
UNK category
Apr 29, 2025
1:03 PM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: An EF1 tornado with estimated wind speeds of 90 to 100 mph was confirmed north of Jay. The tornado uprooted trees... damaged homes and destroyed outbuildings. Additional information will be provided once the survey is complete.
NWS Tornado Report Location: 3 NNE Jay, OK
UNK category
Apr 28, 2024
6:37 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: tornado brought down trees at hwy 412 alt and 540 road (near Leach) in Delaware county; time estimated by radar.
NWS Tornado Report Location: Leach, OK
UNK category
Oct 11, 2021
5:11 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: RADAR CONFIRMED TORNADO SSW OF JAY.
NWS Tornado Report Location: 7 SSW Jay, OK
UNK category
May 27, 2020
1:16 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A TORNADO SNAPPED LARGE TREE LIMBS ALONG A NARROW PATH FOR MORE THAN 2 MILES
NWS Tornado Report Location: 11 NE Jay, OK
UNK category
May 27, 2020
12:45 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A TORNADO UPROOTED TREES
NWS Tornado Report Location: 5 SSW Maysville, OK
UNK category
May 27, 2020
12:34 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A TORNADO SNAPPED LARGE TREE LIMBS.
NWS Tornado Report Location: 5 ENE Colcord, OK
UNK category
May 26, 2020
12:07 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A TORNADO WAS VERIFIED THROUGH BROADCAST MEDIA VIDEO NEAR WEST SILOAM SPRINGS. TIME AND LOCATION IS ESTIMATED FROM RADAR.
NWS Tornado Report Location: West Siloam Springs, OK
UNK category
May 23, 2019
5:57 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: 1 W Bernice, OK
UNK category
May 23, 2019
2:37 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A TORNADO CROSSED HIGHWAY 59 NORTH OF TOWN. DEBRIS SIGNATURE NOTED ON RADAR.
NWS Tornado Report Location: 1 N Jay, OK
UNK category
May 21, 2019
3:45 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: A TORNADO DEVELOPED NEAR PEGGS... OK AND TRAVELED TO THE LEACH AREA.
NWS Tornado Report Location: Leach, OK
UNK category
Apr 30, 2019
10:38 PM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: PHOTOS RECEIVED OF A TORNADO SOUTHEAST OF AFTON. TREE DAMAGE NOTED.
NWS Tornado Report Location: 3 SE Afton, OK
UNK category
Apr 28, 2016
4:57 AM UTC
Tornado report for Delaware County, OK
Delaware County · 15,881 Homes in County
Tornado Report Description: TIME ESTIMATED BY RADAR. STORM SURVEY TEAM HAS ASSIGNED A PRELIMINARY EF1 RATING.
NWS Tornado Report Location: Twin Oaks, OK
Showing 15 of 30
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 Delaware County on the Interactive Map

Report type
Hail
Wind
Tornado

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Browse Cities with NWS Storm Reports in Delaware County

Grove, OK 126
Hail, wind & tornado reports
Jay, OK 87
Hail, wind & tornado reports
Bernice, OK 51
Hail, wind & tornado reports
Colcord, OK 50
Hail, wind & tornado reports
Kansas, OK 34
Hail, wind & tornado reports
Leach, OK 25
Hail, wind & tornado reports
Cleora, OK 22
Hail, wind & tornado reports
West Siloam Springs, OK 22
Hail, wind & tornado reports
Zena, OK 22
Hail, wind & tornado reports
Old Eucha, OK 11
Hail, wind & tornado reports
Indianola, OK 10
Hail, wind & tornado reports
Oaks, OK 9
Hail, wind & tornado reports
Sycamore, OK 6
Hail, wind & tornado reports
Twin Oaks, OK 6
Hail, wind & tornado reports
Brush Creek, OK 5
Hail, wind & tornado reports
Dripping Springs, OK 5
Hail, wind & tornado reports

NWS Storm Reports & Census Data

U.S. Census Data · County

Delaware County, OK area census snapshot

People & households
Population41,017
Households16,930
Housing units24,282
Income
Median household income$55,114
$100k+ households29.1%
$150k+ households8.5%
Housing stock
Single-family detached15,881
Attached single-family644
Small multifamily963
Large multifamily404
Mobile homes6,257
Housing mix
Single-family share65.4%
Attached-home share2.7%
Multifamily share5.6%
Mobile-home share25.8%
Ownership & occupancy
Owner-occupied12,850
Renter-occupied4,080
Vacant units7,352
Home value & age
Median home value$164,900
Owner homes $300k+24.8%
Owner homes $500k+11.5%
Owner homes $750k+5.1%
Median year built1987
Older-home share37.7%
Vehicle context
Households with cars16,204
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 Delaware County

74331 141
Cleora, OK Hail, wind & tornado reports
74344 123
Grove, OK Hail, wind & tornado reports
74346 117
New Eucha, OK Hail, wind & tornado reports
74338 80
Cloud Creek, OK Hail, wind & tornado reports
74370 65
Wyandotte, OK Hail, wind & tornado reports
74347 39
Chewey, OK Hail, wind & tornado reports
74366 38
Kenwood, OK Hail, wind & tornado reports
74364 36
Teresita, OK Hail, wind & tornado reports
74365 36
Kenwood, OK Hail, wind & tornado reports
74964 35
Chewey, OK Hail, wind & tornado reports
74342 34
Kenwood, OK Hail, wind & tornado reports
74359 8
Oaks, OK Hail, wind & tornado reports
74368 2
Twin Oaks, OK Hail, wind & tornado reports

Get a Remote Hail Inspection

Not sure if hail may have affected your home in Delaware 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 Delaware County have on record?

Our records show 252 hail, 270 wind, and 61 tornado reports in Delaware County, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 6, 2026.

What is the largest hail ever reported in Delaware County?

The largest hail size in these storm-report records in Delaware County is 3.00″. It was reported near Zena, OK on March 27, 2020.

A storm report showed up near my home in Delaware 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 Delaware County and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in Delaware 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 Delaware County address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in Delaware 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 Delaware County address?

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