Heads up! Small hail spotted in these regions: Kingsport, TN • Huntsville, AL • Gadsden, AL • Colorado Springs, CO • Denver, CO ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Johnson City, TN • Grand Junction, CO • Fayetteville, NC • Durham, NC • Raleigh, NC • Saint Louis, MO • Rawlins, WY • Champaign, IL • Mattoon, IL • Sebring, FL • North Port, FL • Fort Myers, FL • Tampa, FL • Hickory, NC • Charlotte, NC • Owensboro, KY • Knoxville, TN • Evansville, IN • Farmington, NM • Louisville, KY • Winston, NC • Greensboro, NC • Provo, UT • Logan, UT • Ogden, UT • Salt Lake City, UT Heads up! Small hail spotted in these regions: Kingsport, TN • Huntsville, AL • Gadsden, AL • Colorado Springs, CO • Denver, CO ATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Johnson City, TN • Grand Junction, CO • Fayetteville, NC • Durham, NC • Raleigh, NC • Saint Louis, MO • Rawlins, WY • Champaign, IL • Mattoon, IL • Sebring, FL • North Port, FL • Fort Myers, FL • Tampa, FL • Hickory, NC • Charlotte, NC • Owensboro, KY • Knoxville, TN • Evansville, IN • Farmington, NM • Louisville, KY • Winston, NC • Greensboro, NC • Provo, UT • Logan, UT • Ogden, UT • Salt Lake City, UT

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

Hail, Wind & Tornado Reports in and near Potomac, MD

Public hail, wind, and tornado reports in and near Potomac, MD from May 6, 1991 through September 4, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.

Example: 20854 — search hail, wind and tornado public reports for any U.S. ZIP code

Hail Reports

Wind Reports

Tornado Reports

Max Hail Size

1.75″

Source NOAA SPC · NWS Local Storm Reports Coverage Potomac, MD · 1991–present Updated Daily · last Sep 4, 2026

Latest NWS Hail Reports in and near Potomac, MD

6 reports

Free hail report for your home →

1.00″ hail

Jun 2, 2019
9:46 PM UTC

Hail report for Potomac, MD

Montgomery County · 189,730 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 2 NNE Potomac, MD

1.00″ hail

May 2, 2016
10:48 PM UTC

Hail report for Potomac, MD

Montgomery County · 189,730 Homes in County

Hail Report Description: QUARTER SIZE HAIL

NWS Hail Report Location: 2 NNE Potomac, MD

1.00″ hail

May 27, 2014
4:55 PM EST-5

Hail report for Potomac, MD

Montgomery County · 189,730 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 3 NW Potomac, MD

1.00″ hail

May 8, 2013
3:45 PM EST-5

Hail report for Potomac, MD

Montgomery County · 189,730 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: 1.53 NW Potomac, MD

1.75″ hail

Jun 30, 2003
10:22 PM EST

Hail report for Potomac, MD

Montgomery County · 189,730 Homes in County

Hail Report Description: Quarter to golfball sized hail was reported in Potomac Village.

NWS Hail Report Location: Potomac, MD

1.00″ hail

May 1, 1997
3:55 PM EST

Hail report for Potomac, MD

Montgomery County · 189,730 Homes in County

Hail Report Description: No National Weather Service description provided.

NWS Hail Report Location: Southwest Portion, MD

Showing 6 of 6

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 Potomac, MD

30 reports

Free hail report + wind check →

UNK mph

Sep 4, 2026
3:39 AM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Tree down on house in the 9300 block of Mercy Hollow Lane.

NWS Wind Report Location: 1 N Congressional Manor, MD

UNK mph

Jun 12, 2026
8:30 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Trained spotter reported downed tree blocking road at Ormond Road and Counselman Road.

NWS Wind Report Location: Potomac, MD

UNK mph

Mar 17, 2026
12:54 AM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Tree down on a house

NWS Wind Report Location: 1 NNE Potomac, MD

UNK mph

Mar 17, 2026
12:45 AM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Tree into house on Rouen Lane (no injuries)

NWS Wind Report Location: 1 NNE Potomac, MD

UNK mph

Mar 17, 2026
12:43 AM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Tree down

NWS Wind Report Location: 2 WSW Bradley Farms, MD

UNK mph

Jun 19, 2025
8:20 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Trees and wires down

NWS Wind Report Location: Congressional Manor, MD

UNK mph

Jun 19, 2025
8:18 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Tree down on a house.

NWS Wind Report Location: 2 WNW Potomac, MD

UNK mph

Jun 19, 2025
8:10 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: A tree blew down onto a house in the 11000 block of Home Place Lane.

NWS Wind Report Location: 2 NW Potomac, MD

UNK mph

Jun 19, 2025
8:07 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: National Park Service reports that the entrance to Great Fall National Park Maryland side is blocked by trees.

NWS Wind Report Location: 3 ESE Great Falls, MD

UNK mph

Jun 19, 2025
8:05 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Numerous large trees blew down along MD-190 River Road between Falls Road and I-495 Capital Beltway.

NWS Wind Report Location: Bradley Farms, MD

UNK mph

May 27, 2024
11:28 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Several trees and wires blew down near Potomac.

NWS Wind Report Location: 1 WSW Potomac, MD

UNK mph

Jul 29, 2023
8:15 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Delayed report. Montgomery County EM relayed report of numerous downed trees in the Potomac area. Time estimated from radar.

NWS Wind Report Location: Potomac, MD

UNK mph

Jul 28, 2023
10:36 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: Numerous trees and wires blew down in the Rockville and Potomac area... including along Arctic Avenue... Democracy Boulevard near Falls Road... Montrose Road... Copley Place... and Rockville Pike.

NWS Wind Report Location: 2 NNW Potomac, MD

UNK mph

Jul 18, 2022
8:17 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: LARGE TREES AND WIRES BLEW DOWN NEAR THE INTERSECTION OF THE CORRAL DRIVE AND BURBANK DRIVE.

NWS Wind Report Location: 1 WSW Potomac, MD

UNK mph

Jul 2, 2022
11:34 PM UTC

Wind report for Potomac, MD

Montgomery County · 189,730 Homes in County

Wind Report Description: A TREE BLEW DOWN IN THE INTERSECTION OF GLEN RD AND FALLS RD.

NWS Wind Report Location: 1 NNE Potomac, MD

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 and near Potomac, MD

1 reports

F0 category

Nov 5, 2003
3:08 PM EST

Tornado report for Potomac, MD

Montgomery County · 189,730 Homes in County

Tornado Report Description: A weak tornado entered Montgomery County, Maryland from Loudoun County, Virginia. The tornado had hit near Balls Bluff Regional Park in Eastern Loudoun County and crossed the Potomac River into Western Montgomery County. The storm tracked across mostly rural areas and produced scattered tree damage near Turtle Run Campgrounds. The tornado dissipated 4 miles southwest of Poolesville.

NWS Tornado Report Location: Potomac, MD

Showing 1 of 1

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 Potomac, MD on the Interactive Map

Report type

Hail

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Tornado

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Browse ZIP Codes with NWS Storm Reports in Potomac

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Potomac, MD Hail, wind & tornado reports

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NWS Storm Reports & Census Data

U.S. Census Data · City

Potomac, MD area census snapshot

People & households

Population46,230

Households16,280

Housing units16,843

Income

Median household income$239,205

$100k+ households25.0%

$150k+ households15.4%

Housing stock

Single-family detached11,836

Attached single-family2,519

Small multifamily349

Large multifamily2,125

Mobile homes14

Housing mix

Single-family share70.3%

Attached-home share15.0%

Multifamily share14.7%

Mobile-home share0.1%

Ownership & occupancy

Owner-occupied13,851

Renter-occupied2,429

Vacant units563

Home value & age

Median home value$1,105,900

Owner homes $300k+94.6%

Owner homes $500k+90.9%

Owner homes $750k+81.9%

Median year built1977

Older-home share56.8%

Vehicle context

Households with cars15,610

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 Potomac have on record?

Our records show 6 hail, 63 wind, and 1 tornado reports in and near Potomac, MD, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on September 4, 2026.

What is the largest hail ever reported in Potomac?

The largest hail size in these storm-report records in and near Potomac, MD is 1.75″. It was reported near Potomac, MD on June 30, 2003.

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

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

I am selling a home in Potomac — 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 Potomac address?

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

Hail, Wind & Tornado Reports in and near Potomac, MD

Latest NWS Hail Reports in and near Potomac, MD

Latest NWS Wind Reports in and near Potomac, MD

Latest NWS Tornado Reports in and near Potomac, MD

NWS Hail, Wind and Tornado Reports in and near Potomac, MD on the Interactive Map

Get a free hail report for your address

Browse ZIP Codes with NWS Storm Reports in Potomac

NWS Storm Reports & Census Data

Potomac, MD area census snapshot

Frequently asked questions

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