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

Hail, Wind & Tornado Reports in and near ZIP 20815

Public hail, wind, and tornado reports in and near ZIP 20815 from January 26, 1971 through June 19, 2025, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 20815 — search hail, wind and tornado public reports for any U.S. ZIP code 
Hail Reports
1
Wind Reports
39
Tornado Reports
0
Max Hail Size
1.00″
Source  NOAA SPC · NWS Local Storm Reports Coverage  ZIP 20815 · 1971–present Updated  Daily · last Jun 19, 2025

Latest NWS Hail Reports in and near ZIP 20815

1 reports
Free hail report for your home →
1.00″ hail
Apr 21, 2017
8:49 PM UTC
Hail report for ZIP 20815
Montgomery County · 189,730 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Chevy Chase, MD
Showing 1 of 1
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 20815

39 reports
Free hail report + wind check →
UNK mph
Jun 19, 2025
8:20 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: Large tree down at the 1620 block of Western Ave
NWS Wind Report Location: 1 E Somerset, MD
UNK mph
Jul 31, 2024
9:27 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: A few reports of trees and wires down near Connecticut Ave and Underwood St.
NWS Wind Report Location: 1 SSW Chevy Chase, MD
UNK mph
Jul 25, 2022
7:43 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: TREES BLEW DOWN IN BETHESDA... INCLUDING ALONG MD-185 CONNECTICUT AVENUE BETWEEN PRIMROSE STREET AND MD-191 BRADLEY LANE.
NWS Wind Report Location: 1 ENE Somerset, MD
UNK mph
Jul 25, 2022
7:40 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: TREES BLEW DOWN IN BETHESDA... INCLUDING ALONG MD-185 CONNECTICUT AVENUE BETWEEN PRIMROSE STREET AND MD-191 BRADLEY LANE.
NWS Wind Report Location: 1 ENE Somerset, MD
UNK mph
Jul 12, 2022
9:47 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: DOWNED TREE BLOCKING EASTBOUND RIVER ROAD AT SPRINGFIELD DRIVE.
NWS Wind Report Location: 1 WNW Somerset, MD
UNK mph
Jun 2, 2022
8:24 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: TREE DOWN AND POWERLINE WIRES DOWN AT BROOKVILLE ROAD NEAR TAYLOR STREET
NWS Wind Report Location: 1 S Chevy Chase, MD
UNK mph
Jun 2, 2022
8:24 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: POWERLINE WIRES AND TREE DOWN ON THE 4700 BLOCK OF CHEVY CHASE BLVD
NWS Wind Report Location: 1 NNE Somerset, MD
UNK mph
Jun 2, 2022
8:22 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: TREE DOWN AND POWERLINE WIRES DOWN NEAR THE INTERSECTION OF MD-186 AND BROOKVILLE ROAD NEAR TAYLOR STREET
NWS Wind Report Location: Chevy Chase, MD
UNK mph
May 22, 2022
11:41 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: TREE REPORTED DOWN NEAR THE INTERSECTION OF WESTBARD AVE AND RIVER ROAD.
NWS Wind Report Location: 1 WNW Somerset, MD
UNK mph
Jul 1, 2021
5:47 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: A TREE BLEW ONTO A HOUSE AND WIRES WERE TORN DOWN IN THE 7000 BLOCK OF MEADOW LANE.
NWS Wind Report Location: 1 SSW Chevy Chase, MD
UNK mph
Jul 1, 2021
5:45 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: MD-191 BRADLEY LANE WAS CLOSED DUE TO FALLEN TREES BETWEEN MD-355 WISCONSIN AVENUE AND MD-185 CONNECTICUT AVENUE.
NWS Wind Report Location: 1 NE Somerset, MD
UNK mph
Jun 27, 2020
8:51 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: CT AVE NEAR I-495 AND JONES BRIDGE RD BLOCKED BY DOWNED TREES.
NWS Wind Report Location: Chevy Chase, MD
UNK mph
Jun 27, 2020
8:42 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: NUMEROUS TREES AND BRANCHES DOWN IN THE CHEVY CHASE AND BETHESDA AREA. A TREE FELL ON A HOUSE ON JONES BRIDGE ROAD. SEVERAL TREES WERE DOWN ALONG I-495 CAPITAL BELTWAY BETWEEN MD-355 WISCONSIN AVENUE AND MD-193 UNIVERSITY BOULEVARD.
NWS Wind Report Location: 1 NW Chevy Chase, MD
UNK mph
Jun 25, 2020
10:39 PM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: TREE BRANCHES AND WIRES DOWN IN 4920 BLOCK OF CHEVY CHASE BLVD.
NWS Wind Report Location: 1 N Somerset, MD
UNK mph
Aug 7, 2019
12:06 AM UTC
Wind report for ZIP 20815
Montgomery County · 189,730 Homes in County
Wind Report Description: NUMEROUS TREES REPORTED DOWN THROUGHOUT CHEVY CHASE. CORRECTED EVENT TIME.
NWS Wind Report Location: Chevy Chase, MD
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 20815

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 in and near ZIP 20815 on the Interactive Map

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NWS Storm Reports & Census Data

U.S. Census Data · ZIP Code

ZIP 20815 area census snapshot

People & households
Population31,269
Households13,207
Housing units14,192
Income
Median household income$198,243
$100k+ households30.1%
$150k+ households18.5%
Housing stock
Single-family detached6,941
Attached single-family693
Small multifamily412
Large multifamily6,138
Mobile homes8
Housing mix
Single-family share48.9%
Attached-home share4.9%
Multifamily share46.2%
Mobile-home share0.1%
Ownership & occupancy
Owner-occupied8,776
Renter-occupied4,431
Vacant units985
Home value & age
Median home value$1,230,700
Owner homes $300k+95.1%
Owner homes $500k+86.4%
Owner homes $750k+77.8%
Median year built1964
Older-home share70.5%
Vehicle context
Households with cars11,683
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 20815 have on record?

Our records show 1 hail, 39 wind, and 0 tornado reports in and near ZIP 20815, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on June 19, 2025.

What is the largest hail ever reported in ZIP 20815?

The largest hail size in these storm-report records in and near ZIP 20815 is 1.00″. It was reported near Chevy Chase, MD on April 21, 2017.

A storm report showed up near my home in ZIP 20815 — 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 20815 and ask about a Remote Hail Inspection before anyone climbs on the roof.

I am buying a home in ZIP 20815 — 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 20815 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.

I am selling a home in ZIP 20815 — 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 20815 address?

Use the address search to pull a free address-level hail report for any property in ZIP 20815 — 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 20815, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 20815, 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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