Heads up! Small hail spotted in these regions: McAllen, TX • Laredo, TX • Columbia, SCATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Casper, WY • Greenville, NC • Albuquerque, NM • Asheville, NC • Kingsport, TN • Johnson City, TN • Grand Junction, CO • Fayetteville, NC • Raleigh, NC • Saint Louis, MO • Champaign, IL • Owensboro, KY • Knoxville, TN • Evansville, IN • Louisville, KY • Provo, UTHeads up! Small hail spotted in these regions: McAllen, TX • Laredo, TX • Columbia, SCATTENTION! Damaging hail detected. Hail tracking is now active for these regions: Casper, WY • Greenville, NC • Albuquerque, NM • Asheville, NC • Kingsport, TN • Johnson City, TN • Grand Junction, CO • Fayetteville, NC • Raleigh, NC • Saint Louis, MO • Champaign, IL • Owensboro, KY • Knoxville, TN • Evansville, IN • Louisville, KY • Provo, UT
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 18109
Public hail, wind, and tornado reports in and near ZIP 18109 from July 3, 1975 through July 28, 2026, sourced from NOAA/NWS Local Storm Reports and SPC storm report data.
Example: 18109 — search hail, wind and tornado public reports for any U.S. ZIP code
Hail Reports
2
Wind Reports
23
Tornado Reports
2
Max Hail Size
0.88″
Source NOAA SPC · NWS Local Storm ReportsCoverage ZIP 18109 · 1975–presentUpdated Daily · last Jul 28, 2026
Hail Report Description: Dime to nickel size hail fell in East Allentown. A 46 mph wind gust was also reported from the Lehigh Valley International Airport.
NWS Hail Report Location: 1.3 E Allentown, PA
0.75″hail
Jul 3, 1975 12:48 PM CST
Hail report for ZIP 18109
Northampton County · 75,252 Homes in County
Hail Report Description: No National Weather Service description provided.
NWS Hail Report Location: Not provided, PA
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: No National Weather Service description provided.
NWS Wind Report Location: Lehigh Valley Internati, PA
59mph
Jul 3, 2026 11:17 PM UTC
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: Lehigh Valley International Airport gusted to 51 kt.
NWS Wind Report Location: Lehigh Valley Internati, PA
UNKmph
Jul 3, 2025 9:39 PM UTC
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: Widespread lines down across Allen Township. Time estimated from radar.
NWS Wind Report Location: 1 E Allentown, PA
UNKmph
Jun 26, 2024 11:09 PM UTC
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: Large tree uprooted and lying across road on N Ulster Street. Time estimated.
NWS Wind Report Location: 2 SSE Lehigh Valley Int, PA
58mph
Jun 26, 2024 10:58 PM UTC
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: Trained spotter relays report of 58.1 mph wind gust on a calibrated vortex inspeed.
NWS Wind Report Location: 2 SSW East Allen Twp, PA
UNKmph
Aug 28, 2020 12:30 AM UTC
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: DOWNED TREES AND WIRES NEAR NORTH IRVING STREET IN WHITEHALL TWP. TIME ESTIMATED FROM RADAR.
NWS Wind Report Location: 1 ENE Whitehall Twp, PA
64mph
Jul 1, 2017 8:51 PM UTC
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: 64 MPH GUST RECORDED AT THE LEHIGH VALLEY INTERNATIONAL AIRPORT
NWS Wind Report Location: Lehigh Valley Intl Airp, PA
UNKmph
Jul 1, 2017 8:48 PM UTC
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: SEVERAL REPORTS OF DAMAGE AT THE LEHIGH VALLEY INTERNATIONAL AIRPORT. ONE PLANE OVERTURNED. ANOTHER PLANE LOST ITS NOSE GEAR AND ANOTHER PLANE WAS DAMAGED BY A FALLING TREE. ROOFING WAS STRIPPED OFF AND SKYLIGHTS WERE CRACKED AT THE MAIN TERMINAL BUILDING.
NWS Wind Report Location: 1 SW Schoenersville, PA
61mph
Jun 30, 2015 1:46 PM EST-5
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: A severe thunderstorm produced a wind gust of 61 mph at the Lehigh Valley International Airport.
NWS Wind Report Location: 1.69 E West Catasauqua, PA
59mph
May 22, 2014 2:49 PM EST-5
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: A severe thunderstorm produced a 59 mph wind gust at the Lehigh Valley International Airport. About 1,000 homes and businesses lost power in Lehigh County.
NWS Wind Report Location: 1.53 ESE West Catasauqua, PA
60mph
Apr 10, 2013 5:50 PM EST-5
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: A severe thunderstorm knocked down a few trees between Allentown and Bethlehem.
NWS Wind Report Location: 2.21 ESE West Catasauqua, PA
60mph
Jul 26, 2012 5:30 PM EST-5
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: A severe thunderstorm blew a vendor's trailer into a parked car outside of Coca-Cola Park in Allentown and caused minor damage. The same severe thunderstorm knocked down a few large trees in the city.
NWS Wind Report Location: 1.51 ENE Allentown, PA
69mph
Jul 25, 2010 1:34 PM EST-5
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: A severe thunderstorm produced a wind gust of 69 mph at the Lehigh Valley International Airport and knocked down trees within Allentown. The combination of damaging wind and lightning caused about 15,000 homes and businesses to lose power, in the Lehigh Valley, 10,000 of the outages were in Lehigh County.
NWS Wind Report Location: 1.54 E West Catasauqua, PA
58mph
Dec 3, 2009 5:32 AM EST-5
Wind report for ZIP 18109
Lehigh County · 74,603 Homes in County
Wind Report Description: A wind gust of 58 mph was measured at the Lehigh Valley International Airport as a line of showers and isolated thunderstorms moved through.
NWS Wind Report Location: 1.49 E West Catasauqua, PA
61mph
Apr 9, 1991 1:36 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
60mph
Sep 23, 1986 1:55 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
66mph
Jul 11, 1984 4:08 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
92mph
Aug 11, 1983 2:36 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
66mph
Aug 1, 1983 2:08 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
77mph
Jun 25, 1981 4:10 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
69mph
Jun 3, 1980 12:57 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
60mph
Aug 10, 1979 1:15 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
66mph
Jul 3, 1975 12:48 PM CST
Wind report for ZIP 18109
Northampton County · 75,252 Homes in County
Wind Report Description: No National Weather Service description provided.
NWS Wind Report Location: Not provided, PA
Showing 15 of 23
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 18109
2 reports
UNKcategory
Aug 7, 2023 11:21 PM UTC
Tornado report for ZIP 18109
Lehigh County · 74,603 Homes in County
Tornado Report Description: On the evening of August 7th... an EF-1 tornado occurred... primarily in the Midway Manor neighborhood of Allentown... Pennsylvania. The tornado began near East Pennsylvania Street between North Ulster Street and North Van Buren Street. At this location... damage to the roof of a church and a neighboring shed was seen with multiple shingles removed and displaced. A large hardwood tree was also uprooted in this area... falling to the north as it was uprooted. The tornado then continued to the northeast towards East Lily Street and North Wahneta Street causing sporadic tree damage along the way. As the tornado crossed North Wahneta Street... the amount of damage began to increase with a shed removed from its foundation and tossed about 50 feet northwest. Multiple trees were uprooted or snapped in this area as well. As the tornado continued to the northeast... approaching and crossing East Fairmont Street... it reached its maximum width... around 160 yards. It is also reached its maximum intensity... caus
NWS Tornado Report Location: 2 SSE Lehigh Valley Int, PA
EF1category
Sep 6, 2008 2:00 PM EST-5
Tornado report for ZIP 18109
Lehigh County · 74,603 Homes in County
Tornado Report Description: An EF1 tornado with maximum wind gusts of about 95 mph touched down in East Allentown. The tornado damaged about 50 homes and the Louis E. Dieruff High School which was closed until September 10th. About 100 trees were damaged or destroyed. The tornado touched down between North Ortt Street and East Cedar Street behind the Lehigh Valley Christian High School on Oswego Street. It proceeded to move west paralleling East Cedar Street and reached its maximum strength around North Kearney Street where EF1 damage started. The high school was within the path of the strongest part of the tornado. The tornado started to weaken just before it crossed North Irving Street and lifted around North Hart Street. ||Homes were hardest hit near the intersection of East Cedar and Kiowa Streets. Several roofs were damaged; shingles were pulled from other homes. Part of a roof was torn away from a home on North Irving Street. Along the path of the tornado siding was torn from a few other homes and power lines were pulled down in addition to the tree damage. The greatest destruction occurred on the grounds of the Louis E. Dieruff High School. The tornado peeled away a section of the high school's roof near the planetarium. This allowed the heavy rain to cause water damage to seventeen classrooms and a couple of hundred lockers. Ventilation units located on the roof were wrenched away. About twenty-five trees on the high school grounds were knocked down; the limbs damaged several school windows. Repairs to the high school were not expected to be completed until the middle of November.| |The tornado path length was about 0.6 of a mile and its maximum path width was about 30 yards. No injuries were reported.
NWS Tornado Report Location: 1.8 NNE East Penn Jct, PA
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 18109 on the Interactive Map
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Frequently asked questions
for homeowners, buyers & sellers
How many hail, wind, and tornado reports does ZIP 18109 have on record?
Our records show 2 hail, 23 wind, and 2 tornado reports in and near ZIP 18109, compiled from NOAA SPC and NWS Local Storm Reports. The most recent was reported on July 28, 2026.
What is the largest hail ever reported in ZIP 18109?
The largest hail size in these storm-report records in and near ZIP 18109 is 0.88″. It was reported near Allentown, PA on July 17, 2008.
A storm report showed up near my home in ZIP 18109 — 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 18109 and ask about a Remote Hail Inspection before anyone climbs on the roof.
I am buying a home in ZIP 18109 — 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 18109 address before closing helps you ask informed questions about roof age, past repairs, and any prior claims.
I am selling a home in ZIP 18109 — 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 18109 address?
Use the address search to pull a free address-level hail report for any property in ZIP 18109 — 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 18109, sourced from NOAA SPC and NWS Local Storm Reports. They show where hail, wind, or tornado activity was reported in ZIP 18109, 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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