Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free. Hi folks! Stay ahead of the storm with a 48-hour severe weather outlook, precise hail alerts, and live hail tracking. Access hail insights, historical hail maps, and detailed reports across 300+ regions for better planning and fewer "uh-oh" moments. Stay informed, stay safe, and stay protected - all completely free.
NOAA/NWS STORM PREDICTION CENTER REPORTS + U.S. CENSUS DATA
Hail, Wind & Tornado Reports in and near ZIP 21758
Public hail, wind, and tornado reports in and near ZIP 21758 from May 8, 1984 through August 27, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.
Example: 21758 — search hail, wind and tornado public reports for any U.S. ZIP code
Hail Reports
2
Wind Reports
42
Tornado Reports
1
Max Hail Size
1.00″
Source NOAA SPC · NWS Local Storm ReportsCoverage ZIP 21758 · 1984–presentUpdated Daily · last Aug 27, 2026
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Knoxville, MD
0.75″hail
May 13, 2000 4:50 PM EST
Hail report for ZIP 21758
Washington County · 39,808 Homes in County
Hail Report Description: Dime sized hail fell.
NWS Hail Report Location: Sandy Hook, MD
Showing 2 of 2
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.
Wind Report Description: Trees down on MD-79 Petersville Rd at Chick Ln
NWS Wind Report Location: Rosemont, MD
UNKmph
Aug 27, 2026 10:30 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Trees down on MD-180 Jefferson Pike at Weston Dr
NWS Wind Report Location: 1 W Petersville, MD
UNKmph
Aug 27, 2026 10:30 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Trees down on US-340 at MD-17 Burkittsville Rd
NWS Wind Report Location: 1 Wnw Rosemont, MD
UNKmph
Aug 20, 2026 6:53 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Trees down on MD-464 Point of Rocks Rd at Galyn Dr.
NWS Wind Report Location: 1 Ene Brunswick, MD
UNKmph
Jul 28, 2026 8:28 PM UTC
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: A number of reported trees down around Sandy Hook_ MD
NWS Wind Report Location: 2 E Harpers Ferry, MD
UNKmph
Jul 1, 2025 6:35 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Tree damage was reported near Brunswick... including a tree that blew down on MD-478 Knoxville Road at Western Avenue.
NWS Wind Report Location: 1 W Brunswick, MD
UNKmph
Jun 19, 2025 6:50 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Trees blew down on Petersville Road at Burkittsville Road.
NWS Wind Report Location: 1 SSW Rosemont, MD
UNKmph
Jun 19, 2025 6:45 PM UTC
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: Trees blew down on US-340 at Keep Tryst Road.
NWS Wind Report Location: 3 ESE Pleasantville, MD
UNKmph
Sep 7, 2023 6:28 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Trees blew down in southwestern Frederick County near Rosemont... Brunswick... and Knoxville.
NWS Wind Report Location: 1 WNW Rosemont, MD
UNKmph
Jul 21, 2023 6:00 AM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Several trees blew down in the Brunswick area... including along MD-464 Souder Road/Point of Rocks Road near North Maple Avenue and Catoctin Mountain Highway.
NWS Wind Report Location: 1 N Brunswick, MD
UNKmph
Jul 23, 2022 10:55 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE DOWN ON MD-180 NEAR CEMETERY CIRCLE.
NWS Wind Report Location: 2 WNW Brunswick, MD
UNKmph
Aug 10, 2021 9:03 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A TREE BLEW DOWN ON US-340 NEAR MD-17. A TREE BLEW DOWN ON MD-17 AT LEES ROAD. A TREE BLEW DOWN ON US-15 NEAR MILE MARKER 7.
NWS Wind Report Location: 1 WNW Rosemont, MD
UNKmph
Jun 13, 2021 4:40 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A TREE BLEW DOWN ON MD-79 PETERSVILLE ROAD NEAR CHICK LANE.
NWS Wind Report Location: Rosemont, MD
UNKmph
May 26, 2021 11:13 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: POWERLINES DOWN ON THE 3000 BLOCK OF PETERSVILLE ROAD
NWS Wind Report Location: Petersville, MD
UNKmph
May 26, 2021 11:12 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE BLEW DOWN ON MD 478 NEAR MOORE STREET.
NWS Wind Report Location: 1 W Brunswick, MD
UNKmph
Nov 15, 2020 10:51 PM UTC
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: SEVERAL TREES DOWN JUST WEST OF KNOXVILLE
NWS Wind Report Location: 3 ESE Pleasantville, MD
UNKmph
Apr 8, 2020 7:44 AM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE WAS BLOWN DOWN ON MD-180 JEFFERSON PIKE BETWEEN WESTON DR AND CATHOLIC CHURCH RD
NWS Wind Report Location: Petersville, MD
UNKmph
Jun 27, 2019 8:51 PM UTC
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: TREE REPORTED DOWN ON DRIVEWAY ON BROWN ROAD.
NWS Wind Report Location: 2 ENE Pleasantville, MD
UNKmph
Aug 12, 2018 6:30 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE DOWN ON ST. MARKS ROAD AT JEFFERSON PIKE
NWS Wind Report Location: 1 ENE Petersville, MD
UNKmph
Jul 27, 2018 8:46 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE DOWN IN THE ROADWAY NEAR THE INTERSECTION OF PETERSVILLE ROAD AND JEFFERSON PIKE.
NWS Wind Report Location: Petersville, MD
UNKmph
Jul 18, 2018 12:29 AM UTC
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: DOWNED TREE ON WIRES NEAR THE 2500 BLOCK OF KAETZEL RD.
NWS Wind Report Location: 1 W Brownsville, MD
UNKmph
Jul 22, 2017 5:35 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE DOWN NEAR THE INTERSECTION OF POINT OF ROCKS ROAD AND WEST BOSS ARNOLD ROAD.
NWS Wind Report Location: 2 SE Petersville, MD
UNKmph
Jul 22, 2017 5:31 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE DOWN ON POWER LINES NEAR THE INTERSECTION OF PETERSVILLE ROAD AND ROSEMONT DRIVE.
NWS Wind Report Location: Rosemont, MD
UNKmph
Jul 22, 2017 5:23 PM UTC
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: *** 1 INJ *** TREE FELL ON A CAR ON ROUTE 340 AT POTOMAC RIVER CROSSING.
NWS Wind Report Location: 2 E Harpers Ferry, MD
UNKmph
Aug 15, 2016 8:55 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: TREE DOWN IN THE 3500 BLOCK OF SOUTH MOUNTAIN ROAD.
NWS Wind Report Location: Knoxville, MD
UNKmph
Aug 15, 2016 8:53 PM UTC
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: WIRES DOWN IN THE 1300 BLOCK OF ROSEMONT DRIVE.
NWS Wind Report Location: Rosemont, MD
60mph
Jun 23, 2015 4:12 PM EST-5
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A tree was reported down near the 2200 block of Point of Rocks Rd.
Wind Report Description: A county official reported a tree down on Point of Rocks Road.
NWS Wind Report Location: 1.1 E Brunswick, MD
58mph
Jun 4, 2008 2:00 PM EST-5
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A local newspaper reported several roofs blown off barns on Brentland Road.
NWS Wind Report Location: .98 WNW Petersville, MD
58mph
Jun 4, 2008 1:47 PM EST-5
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: A local newspaper reported numerous trees down in the Weverton area on Wolf Hill. One barn roof was destroyed while other barns were lifted off their foundations.
NWS Wind Report Location: 1.07 NW Weverton, MD
58mph
Jun 4, 2008 1:45 PM EST-5
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A trained spotter reported trees and power lines down in Knoxville.
NWS Wind Report Location: N Knoxville, MD
58mph
Jul 16, 2007 6:35 PM EST-5
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: Frederick County Emergency Management reported trees down on Highway 340 north of Brunswick, MD.
NWS Wind Report Location: 3 N Brunswick, MD
69mph
Aug 30, 2005 10:05 PM EST
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A survey was performed by a National Weather Service meteorologist. The survey revealed roof shingle damage on several consecutive houses along East Mountain Road. A television antenna was damaged. A few trees were downed in the same location. A south to north grove of trees west of Route 17 also was damaged. The trees were bent to the west toward the Blue Ridge Mountains. This occurred a few miles to the north of Brunswick.
NWS Wind Report Location: 1 W Brunswick, MD
60mph
Jun 15, 2000 3:24 PM EST
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: A wind gust of 60 MPH was recorded.
NWS Wind Report Location: 3 NW Brunswick, MD
UNKmph
May 13, 2000 4:50 PM EST
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: An estimated wind gust of 70 MPH resulted in tree damage.
NWS Wind Report Location: Sandy Hook, MD
UNKmph
Jul 19, 1996 2:20 PM EST
Wind report for ZIP 21758
Frederick County · 64,079 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: W Rosemont, MD
UNKmph
May 8, 1984 1:35 PM CST
Wind report for ZIP 21758
Washington County · 39,808 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, MD
Showing 15 of 42
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 21758
1 reports
F1category
Jul 19, 1996 2:20 PM EST
Tornado report for ZIP 21758
Frederick County · 64,079 Homes in County
Tornado Report Description: No National Weather Service description provided.
NWS Tornado Report Location: Rosemont, 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 ZIP 21758 on the Interactive Map
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Frequently asked questions
for homeowners, buyers & sellers
How many hail, wind, and tornado reports does ZIP 21758 have on record?
Our records show 2 hail, 42 wind, and 1 tornado reports in and near ZIP 21758, 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 ZIP 21758?
The largest hail size in these storm-report records in and near ZIP 21758 is 1.00″. It was reported near Knoxville, MD on June 21, 2016.
A storm report showed up near my home in ZIP 21758 — 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 21758 and ask about a Remote Hail Inspection before anyone climbs on the roof.
I am buying a home in ZIP 21758 — 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 21758 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.
I am selling a home in ZIP 21758 — 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 21758 address?
Use the address search to pull a free address-level hail report for any property in ZIP 21758 — 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 21758, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 21758, 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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