Hail Swath Map Preview
The Philadelphia, PA hail swath map preview was last reviewed on August 27, 2026 and shows mapped hail estimates up to 0.75". There are 0 public hail reports, 31 public wind reports, and 0 nearby tornado reports listed for the August 10, 2021 event.
View the August 10, 2021 Philadelphia, PA hail event on the free interactive hail map, then check a free Hail Report by ZIP to see a more local hail signal for your area.
Impact Area and Population for the Philadelphia, PA Hail Map
The August 10, 2021 hail swath map for Philadelphia, PA covers approximately 50 square miles and includes an estimated 77,620 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 38 square miles. The highest estimated population exposure is in the < 0.50" hail band with 75,714 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 38 sq mi | 75,714 |
| 0.50-0.75" | 10 sq mi | 1,534 |
| 0.75-1.00" | 2 sq mi | 372 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the August 10, 2021 Philadelphia, PA hail event may have reached your area.
Housing Exposure Inside the Philadelphia, PA Hail Swath Map
Inside the August 10, 2021 hail swath map area for Philadelphia, PA, HailGeeks estimates 7,342 single-family homes, 22,853 townhomes, and 24,587 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 6,495 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 6,495 | 22,836 | 24,568 |
| 0.50-0.75" | 677 | 13 | 17 |
| 0.75-1.00" | 170 | 4 | 2 |
Use this table to review housing exposure by hail band for the August 10, 2021 Philadelphia, PA hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Philadelphia, PA Hail Map
Hail from the August 10, 2021 storm was mapped across 4 counties in the Philadelphia, PA region. Cecil County, MD had the strongest mapped signal, peaking at 0.75" with roughly 1,330 single-family homes inside the swath.
County pages group every mapped hail event in the area. For a closer look, drop to the city or ZIP level below, or run a free Hail Report by Address.
Cities Inside the Philadelphia, PA Hail Map
Zooming in, the swath touched 2 cities near Philadelphia, PA. Chester, PA had the strongest mapped signal at 0.50", with an estimated 360 single-family homes exposed.
City cards show where the August 10, 2021 Philadelphia, PA hail activity was mapped, but your ZIP can show a closer local signal. Get a free Hail Report by ZIP, and if the signal looks meaningful, ask a local pro about a Remote Hail Inspection to see whether an on-site roof or exterior review may be worth scheduling.
ZIP Codes Inside the Philadelphia, PA Hail Swath Map
At the ZIP level, the August 10, 2021 Philadelphia, PA hail map spans 5 ZIP codes. ZIP 21917 shows the strongest local signal, with mapped hail estimates up to 0.75" and an estimated single-family-home exposure of 634.
Check your ZIP in seconds to see whether hail activity from the August 10, 2021 Philadelphia, PA event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the August 10, 2021 hail map for Philadelphia, PA currently list 0 public hail reports, 31 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
| No public hail reports are available for this event. | ||||
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
August 10, 2021 2:33 PM CT | 2 NNW Strausstown | PA | TREE DOWN ON ROUTE 183. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 3:12 PM CT | 2 N Robeson Twp | PA | TREE AND WIRES DOWN ON GOLF COURSE RD. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 3:15 PM CT | 2 SSW Macungie | PA | TREE LIMBS DOWN ON WIRES NEAR SHEEPROCK RD. LIKELY ASSOCIATED WITH OUTFLOW WINDS. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 3:25 PM CT | 1 SSW Earl Twp | PA | TREE DOWN ON WIRES ON LONG LANE RD. LIKELY ASSOCIATED WITH OUTFLOW WINDS. | |
August 10, 2021 3:35 PM CT | 1 WNW Emmaus | PA | CORRECTS TIME OF PREVIOUS TSTM WND DMG REPORT FROM 1 WNW EMMAUS. COUNTY DISPATCH REPORTS ABOUT 5 INSTANCES OF DOWNED TREES AND LIMBS OVER THE SOUTHERN PORTION OF LEHIGH COUNTY. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 4:00 PM CT | Easton | PA | A FEW REPORTS OF DOWNED TREES AND POWER OUTAGES NEAR EASTON. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 4:26 PM CT | 2 ENE Phillipsburg | NJ | REPORT OF A TREE LIMB DOWN IN THE ROAD WHICH WAS HIT BY A VEHICLE IN LOPATCONG TWP. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 4:35 PM CT | 1 WNW Emmaus | PA | COUNTY DISPATCH REPORTS ABOUT 5 INSTANCES OF DOWNED TREES AND LIMBS OVER THE SOUTHERN PORTION OF LEHIGH COUNTY. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 5:05 PM CT | Bensalem | PA | A FEW SHINGLES BLOWN OFF... ALONG WITH 2 INCH DIAMETER LIMBS. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 5:46 PM CT | 1 SE Lititz | PA | WIRES DOWN. | |
August 10, 2021 6:39 PM CT | 5 E Quarryville | PA | WIDESPREAD DOWNED POWERLINES AND WIRES. | |
August 10, 2021 6:40 PM CT | Conowingo | MD | TWO TREES BLEW DOWN ON CONOWINGO ROAD NEAR ROCK SPRINGS ROAD. | |
August 10, 2021 6:47 PM CT | 1 NW West Marlborough T | PA | TREES AND WIRES DOWN ON DOE RUN RD. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 6:52 PM CT | 1 WNW Oxford | PA | A DOWNED TREE BLOCKED THE SOUTHBOUND US-1 RAMP ONTO PA-472. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 6:55 PM CT | Caln Twp | PA | A DOWNED TREE BLOCKED THE ROADWAY NEAR THE INTERSECTION OF HARVEST DR AND INGLESIDE DR. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 6:58 PM CT | 2 NNE East Bradford Twp | PA | TREE DOWN ON WIRES NEAR THE INTERSECTION OF SUNSET HOLLOW RD AND GROVE RD. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:03 PM CT | 1 WSW Parkside | PA | TREE AND WIRES DOWN ON SUSAN LN NEAR ARLINGTON AVE. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:05 PM CT | 1 SSE Ridley Park | PA | TREE AND WIRES DOWN NEAR SELLERS AVE AT INDUSTRIAL HIGHWAY. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:10 PM CT | Avondale | PA | DOWNED WIRES BLOCKING POMEROY AVE AT STATE ST. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:13 PM CT | Morton | PA | TREES AND WIRES DOWN ON SPRINGHILL RD. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:15 PM CT | 2 NE Landenberg | PA | DOWNED TREE BLOCKING ALL OF EGYPT RUN RD NEAR NEWARK RD. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:17 PM CT | 1 NNW Kennett Square | PA | DOWNED TREE LIMBS BLOCKING MOST OF UNIONVILLE RD AT GATEHOUSE DR. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:18 PM CT | 2 ENE Landenberg | PA | DOWNED TREE PARTIALLY BLOCKING REYNOLDS RD NEAR SPRING BENNY RUN. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:20 PM CT | 2 E Birmingham Twp | PA | DOWNED TREE LIMBS BLOCKING BRINTONS BRIDGE RD AT DILWORTHTOWN RD. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:22 PM CT | Malvern | PA | TREE LIMBS AND OTHER STORM DEBRIS DOWN ON LANCASTER AVE AT WOODVIEW DR. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:23 PM CT | 1 NE Pennsville | NJ | WIRES DOWN NEAR NEW JERSEY AVE. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:25 PM CT | Swarthmore | PA | TREE AND WIRES DOWN NEAR THE INTERSECTION OF RUTGERS AVE AT HARVARD AVE. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:26 PM CT | Darby Twp | PA | WIRES DOWN ON ACADEMY AVE NEAR GLEN CIRCLE. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:27 PM CT | 1 NNE Woodlyn | PA | DOWNED TREE AND WIRES NEAR EISENHOWER AVE AT CATHERINE AVE. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:30 PM CT | Primos | PA | TREE AND WIRES DOWN NEAR THE INTERSECTION OF BISHOP AVE AND BROADWAY AVE. TIME ESTIMATED FROM RADAR. | |
August 10, 2021 7:44 PM CT | 2 NNW Stow Creek Twp | NJ | WIRES DOWN NEAR GRAVELY HILL RD. TIME ESTIMATED FROM RADAR. |
| Date & Time | Rating | City | State | Description |
|---|---|---|---|---|
| No public tornado reports are available for this event. | ||||
This table includes only public storm reports connected to the August 10, 2021 Philadelphia, PA storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Philadelphia, PA Region
We found 6 more hail maps with reports from the same Philadelphia, PA region as the August 10, 2021 event. These related maps cover storm dates from Jul 8, 2021 through Jul 29, 2021, with mapped hail estimates ranging from 0.75" to 1.50". In this set, the strongest related map reached 1.50", and the most recent map shown is from Jul 29, 2021.
If none of these related Philadelphia, PA hail maps look close enough to your property, check a free Hail Report by Address. It reviews hail history for a specific location — not just the broader Philadelphia, PA region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Philadelphia, PA
Not sure whether the August 10, 2021 Philadelphia, PA hail map matters for your property? Start with a free Hail Report by Address to see whether hail activity was mapped for that property. If the property signal looks meaningful, you can choose a local pro serving the Philadelphia, PA region and ask about a Remote Hail Inspection before deciding whether an on-site roof or exterior review is worth scheduling.
Check a specific property to see whether hail activity from the August 10, 2021 Philadelphia, PA event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Philadelphia, PA region who can help you understand what the property hail signal may mean.
A participating local pro reviews property-level hail history remotely — not just the August 10, 2021 event — to help decide whether an on-site inspection may be worth scheduling.
A free Hail Report by Address and a Remote Hail Inspection can help you look beyond the August 10, 2021 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Philadelphia, PA region, but they can help you make a more informed next decision before anyone climbs on the roof.
Frequently Asked Questions
Common questions about the August 10, 2021 Philadelphia, PA hail event.