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

Hail, Wind & Tornado Reports in and near ZIP 37777

Public hail, wind, and tornado reports in and near ZIP 37777 from January 10, 1975 through February 20, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 37777 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
12
Wind Reports
39
Tornado Reports
2
Max Hail Size
1.75″
Source  NOAA SPC · NWS Local Storm Reports Coverage  ZIP 37777 · 1975–present Updated  Daily · last Feb 20, 2026

Latest NWS Hail Reports in and near ZIP 37777

12 reports
Free hail report for your home →
1.00″ hail
Apr 10, 2025
10:15 PM UTC
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: Hail odd and slushy... lasted for three to four minutes.
NWS Hail Report Location: 5 NE Friendsville, TN
1.00″ hail
May 2, 2016
8:35 PM UTC
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 6 ESE Farragut, TN
1.00″ hail
Apr 27, 2011
6:46 PM EST-5
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: Quarter-size hail was reported at McGhee Tyson Airport that fell from a thunderstorm that passed over the airport.
NWS Hail Report Location: N Knoxville Mcghee Tys, TN
1.50″ hail
Apr 3, 2006
2:06 AM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: Half dollar size hail at the airport.
NWS Hail Report Location: Knoxville Mcghee Tys, TN
1.75″ hail
Jun 2, 2004
7:40 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: Golf ball size hail on and along Highway 129.
NWS Hail Report Location: 8 N Maryville, TN
1.25″ hail
May 26, 2004
6:24 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: (Tys)Mcghee Tyson Kn, TN
1.00″ hail
May 26, 2004
6:15 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 3 NW Alcoa, TN
0.75″ hail
Aug 10, 2003
3:00 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Louisville, TN
0.75″ hail
May 15, 2003
4:50 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Louisville, TN
1.75″ hail
Nov 10, 2002
8:12 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Louisville, TN
1.25″ hail
May 7, 1999
3:08 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: 52 mph winds also recorded at this time. Reported by observer.
NWS Hail Report Location: (Tys)Mcghee Tyson Kn, TN
0.75″ hail
May 21, 1998
6:30 PM EST
Hail report for ZIP 37777
Blount County · 47,154 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: 1 N Louisville, TN
Showing 12 of 12
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 and near ZIP 37777

39 reports
Free hail report + wind check →
60 mph
Feb 20, 2026
10:42 AM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: Knoxville McGhee Tyson reported a peak wind of 60 mph associated with the convective line of showers.
NWS Wind Report Location: 2 NW Alcoa, TN
62 mph
Dec 19, 2025
4:26 AM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: Knoxville TYS Airport ASOS recorded a 54 knot (~62 mph) wind gust.
NWS Wind Report Location: 2 NW Alcoa, TN
64 mph
Aug 18, 2024
5:09 AM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: McGhee Tyson Airport(KTYS) ASOS station recorded 64 mph wind gust.
NWS Wind Report Location: 2 NW Alcoa, TN
70 mph
Mar 25, 2023
7:42 AM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: KNOXVILLE MCGHEE TYSON AIRPORT ASOS RECORDED A 70 MPH WIND GUST.
NWS Wind Report Location: 2 NW Alcoa, TN
UNK mph
Aug 5, 2022
9:20 PM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: TREE DOWN AND POWERLINES AND COVERING THE WHOLE ROAD. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 4 SE Farragut, TN
UNK mph
Aug 4, 2022
12:42 AM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: POWER LINES DOWN IN ROADWAY. TIME ESTIMATED.
NWS Wind Report Location: 3 NW Alcoa, TN
UNK mph
Jun 21, 2021
11:12 PM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: SEVERAL TREES DOWN ACROSS THE COUNTY.
NWS Wind Report Location: 5 N Alcoa, TN
UNK mph
May 18, 2019
10:13 PM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: TREES DOWN NEAR LOUISVILLE POINT PARK.
NWS Wind Report Location: 4 WNW Alcoa, TN
UNK mph
Apr 17, 2017
7:40 PM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: IN TOWN OF LOUISVILLE ALONG MENTOR ROAD. TWO SEPARATE DOUBLE-TRUNKED TREES SPLIT AS ONE HALF OF EACH TREE FELL. ONE OF THEM FELL UPON AND DAMAGED A STORAGE BUILDING. OTHER TREE LIMBS ALSO DOWNED. THE NEARBY TYS ASOS MEASURED 42 MPH WIND GUST.
NWS Wind Report Location: 3 NW Alcoa, TN
UNK mph
Feb 26, 2017
8:15 AM UTC
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: ESTIMATED 25 PERCENT OF ROOF REMOVED FROM BUILDING
NWS Wind Report Location: 4 NNE Alcoa, TN
58 mph
Jul 20, 2015
4:40 PM EST-5
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: Several trees were downed across the northern part of the county.
NWS Wind Report Location: .89 SW Arline, TN
63 mph
Feb 21, 2014
2:08 AM EST-5
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: A peak wind gust 63 mph was measured at the McGhee Tyson Airport 2 miles northeast of Alcoa.
NWS Wind Report Location: S Knoxville Mcghee Tys, TN
58 mph
Aug 3, 2011
11:00 PM EST-5
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: Law enforcement personnel reported one set of powerlines downed by thunderstorm wind on Topside Road north of Alcoa.
NWS Wind Report Location: 5 N Alcoa, TN
58 mph
Apr 25, 2011
5:15 PM EST-5
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: A thunderstorm wind gust to 58 mph (50 knots) was measured by ASOS at McGhee Tyson Airport.
NWS Wind Report Location: S (Tys)Mcghee Tyson Kn, TN
63 mph
Jun 14, 2010
4:30 PM EST-5
Wind report for ZIP 37777
Blount County · 47,154 Homes in County
Wind Report Description: Utility company personnel reported 3 trees and powerlines downed by thunderstorm winds in and around Louisville.
NWS Wind Report Location: S Louisville, TN
Showing 15 of 39
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 and near ZIP 37777

2 reports
UNK category
Jun 7, 2019
7:45 PM UTC
Tornado report for ZIP 37777
Blount County · 47,154 Homes in County
Tornado Report Description: WEAK LANDSPOUT TORNADO TOUCHED DOWN BRIEFLY... CAUSING MINOR DAMAGE TO TREES. WINDS ESTIMATED TO BE AROUND 40-60MPH. PATH LENGTH OF AROUND 100 YARDS OR LESS... AND WIDTH OF AROUND 10 TO 20 YARDS IS ESTIMATED BASED ON SOCIAL MEDIA VIDEO FOOTAGE.
NWS Tornado Report Location: 5 NE Friendsville, TN
EF0 category
Apr 27, 2011
7:09 PM EST-5
Tornado report for ZIP 37777
Blount County · 47,154 Homes in County
Tornado Report Description: An EF0 tornado touched downed near Louisville. It formed near Dug Gap Road and tracked to near Topside Road and Singleton Station Road where it dissipated. The max winds of 70 mph downed trees along its path.
NWS Tornado Report Location: .56 E Middle Settlement, TN
Showing 2 of 2
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 and near ZIP 37777 on the Interactive Map

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NWS Storm Reports & Census Data

U.S. Census Data · ZIP Code

ZIP 37777 area census snapshot

People & households
Population13,101
Households5,418
Housing units5,995
Income
Median household income$74,357
$100k+ households38.0%
$150k+ households14.0%
Housing stock
Single-family detached3,882
Attached single-family93
Small multifamily1,095
Large multifamily307
Mobile homes618
Housing mix
Single-family share64.8%
Attached-home share1.6%
Multifamily share23.4%
Mobile-home share10.3%
Ownership & occupancy
Owner-occupied3,868
Renter-occupied1,550
Vacant units577
Home value & age
Median home value$297,200
Owner homes $300k+49.2%
Owner homes $500k+25.1%
Owner homes $750k+15.7%
Median year built1986
Older-home share38.2%
Vehicle context
Households with cars5,306
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.

Frequently asked questions

for homeowners, buyers & sellers
How many hail, wind, and tornado reports does ZIP 37777 have on record?

Our records show 12 hail, 39 wind, and 2 tornado reports in and near ZIP 37777, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on February 20, 2026.

What is the largest hail ever reported in ZIP 37777?

The largest hail size in these storm-report records in and near ZIP 37777 is 1.75″. It was reported near Maryville, TN on June 2, 2004.

A storm report showed up near my home in ZIP 37777 — 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 ZIP 37777 and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in ZIP 37777 — 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 ZIP 37777 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in ZIP 37777 — 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 ZIP 37777 address?

Use the address search to pull a free address-level hail report for any property in ZIP 37777 — 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 in and around ZIP 37777, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 37777, 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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