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 1.50". There are 17 public hail reports, 17 public wind reports, and 0 nearby tornado reports listed for the July 21, 2021 event.
View the July 21, 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 July 21, 2021 hail swath map for Philadelphia, PA covers approximately 698 square miles and includes an estimated 748,829 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 281 square miles. The highest estimated population exposure is in the < 0.50" hail band with 258,690 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 281 sq mi | 258,690 |
| 0.50-0.75" | 258 sq mi | 255,001 |
| 0.75-1.00" | 108 sq mi | 191,451 |
| 1.00-1.25" | 42 sq mi | 36,624 |
| 1.25-1.50" | 7 sq mi | 4,874 |
| 1.50-1.75" | 2 sq mi | 2,189 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the July 21, 2021 Philadelphia, PA hail event may have reached your area.
Housing Exposure Inside the Philadelphia, PA Hail Swath Map
Inside the July 21, 2021 hail swath map area for Philadelphia, PA, HailGeeks estimates 215,422 single-family homes, 85,223 townhomes, and 108,907 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 77,521 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 77,521 | 27,117 | 34,649 |
| 0.50-0.75" | 68,128 | 29,536 | 44,547 |
| 0.75-1.00" | 56,148 | 23,453 | 26,108 |
| 1.00-1.25" | 11,441 | 4,003 | 3,000 |
| 1.25-1.50" | 1,604 | 625 | 502 |
| 1.50-1.75" | 580 | 489 | 101 |
Use this table to review housing exposure by hail band for the July 21, 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 July 21, 2021 storm was mapped across 16 counties in the Philadelphia, PA region. Montgomery County, PA had the strongest mapped signal, peaking at 1.50" with roughly 52,571 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 91 cities near Philadelphia, PA. Blue Bell, PA had the strongest mapped signal at 1.50", with an estimated 2,565 single-family homes exposed.
City cards show where the July 21, 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 July 21, 2021 Philadelphia, PA hail map spans 108 ZIP codes. ZIP 19422 shows the strongest local signal, with mapped hail estimates up to 1.50" and an estimated single-family-home exposure of 4,766.
Check your ZIP in seconds to see whether hail activity from the July 21, 2021 Philadelphia, PA event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the July 21, 2021 hail map for Philadelphia, PA currently list 17 public hail reports, 17 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
July 21, 2021 12:05 PM CT |
1.00 in | Stratford | NJ | No National Weather Service description provided. |
July 21, 2021 12:05 PM CT |
1.00 in | Ocean Acres | NJ | No National Weather Service description provided. |
July 21, 2021 12:15 PM CT |
1.00 in | Manahawkin | NJ | No National Weather Service description provided. |
July 21, 2021 1:00 PM CT |
1.00 in | Temple | PA | No National Weather Service description provided. |
July 21, 2021 1:05 PM CT |
1.25 in | Manahawkin | NJ | No National Weather Service description provided. |
July 21, 2021 2:05 PM CT |
1.00 in | East Norriton | PA | No National Weather Service description provided. |
July 21, 2021 2:10 PM CT |
1.00 in | Plymouth Meeting | PA | No National Weather Service description provided. |
July 21, 2021 2:11 PM CT |
1.00 in | Plymouth Twp | PA | HAIL... TO THE SIZE OF QUARTERS (FROM MPING). |
July 21, 2021 2:15 PM CT |
1.25 in | Blue Bell | PA | PHOTOS RELAYED ON SOCIAL MEDIA... OF HAIL SLIGHTLY LARGER THAN QUARTER SIZE. TIME ESTIMATED FROM RADAR. |
July 21, 2021 2:20 PM CT |
1.00 in | 1 N Stratford | NJ | AT LAUREL SPRINGS. |
July 21, 2021 2:20 PM CT |
1.00 in | Lakehurst | NJ | No National Weather Service description provided. |
July 21, 2021 2:20 PM CT |
1.00 in | Gloucester Twp | NJ | No National Weather Service description provided. |
July 21, 2021 2:25 PM CT |
1.00 in | Flourtown | PA | PHOTO FROM SOCIAL MEDIA... HAIL ESTIMATED AT QUARTER SIZE IN FLOURTOWN. TIME ESTIMATED FROM RADAR. |
July 21, 2021 2:30 PM CT |
1.00 in | Abington | PA | No National Weather Service description provided. |
July 21, 2021 2:30 PM CT |
1.00 in | Glenside | PA | No National Weather Service description provided. |
July 21, 2021 2:30 PM CT |
1.00 in | Jenkintown | PA | No National Weather Service description provided. |
July 21, 2021 3:20 PM CT |
1.00 in | Galloway Twp | NJ | No National Weather Service description provided. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
July 21, 2021 1:15 PM CT | 1 WSW Allentown | PA | WIDESPREAD TREE DAMAGE IN WEST ALLENTOWN. | |
July 21, 2021 1:20 PM CT | 2 SSE Allentown | PA | WIRES DOWN SOUTH OF ALLENTOWN. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 1:20 PM CT | 1 NW West Lawn | PA | PHOTO OF LARGE TREE BRANCHES DOWN ON WIRES IN WEST LAWN PA. TIME ESTIMATED BY SPOTTER. | |
July 21, 2021 1:24 PM CT | Spring Twp | PA | LARGE BRANCH DOWN IN SPRING TOWNSHIP... TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:05 PM CT | Audubon | NJ | LARGE BRANCH DOWN ON FENCE IN AUDUBON... PHOTO RELAYED VIA SOCIAL MEDIA. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:05 PM CT | East Norriton | PA | NUMEROUS TREES DOWN. | |
July 21, 2021 2:07 PM CT | North Wales | PA | PHOTO OF LARGE TREE DOWN IN UPPER GWYNEDD TOWNSHIP. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:10 PM CT | 1 WNW Blue Bell | PA | NUMEROUS TREES DOWN ON WIRES IN WHITPAIN TOWNSHIP. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:15 PM CT | 2 WNW Blue Bell | PA | NUMEROUS PHOTOS OF LARGE TREE LIMBS DOWN IN THE IN THE CENTER SQUARE AREA OF BLUE BELL. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:20 PM CT | 1 S Fort Washington | PA | TREES DOWN NEAR THE PENNSYLVANIA TURNPIKE. | |
July 21, 2021 2:28 PM CT | Abington | PA | LARGE TREE SHEARED APART IN ABINGTON TOWNSHIP. PHOTO RELAYED ON SOCIAL MEDIA. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:40 PM CT | 1 WNW Chester Twp | PA | WIRES DOWN ON CARTER AVENUE IN CHESTER TOWNSHIP. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:40 PM CT | 2 NW Holmesburg | PA | TREES ON WIRES ON STANWOOD ST IN RHAWNHURST. | |
July 21, 2021 2:45 PM CT | Tacony | PA | TREES DOWN NEAR VOGT RECREATION CENTER IN TACONY. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:50 PM CT | 2 ESE New Albany | NJ | LARGE TREE LIMBS DOWN AND BLOCKING BRIDGEBORO ROAD NEAR THE WESTFIELD ROAD INTERSECTION IN MOORESTOWN. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 2:51 PM CT | Delanco | NJ | WIRES DOWN IN DELANCO NEAR BORDER WITH RIVERSIDE TOWNSHIP/RANCOCAS RIVER. TIME ESTIMATED FROM RADAR. | |
July 21, 2021 3:00 PM CT | 2 ESE Ramtown | NJ | WIRES DOWN ON ROAD IN HERBERTSVILLE... PHOTO RELAYED THROUGH SOCIAL MEDIA. 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 July 21, 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 July 21, 2021 event. These related maps cover storm dates from Jul 1, 2021 through Jul 17, 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 17, 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 July 21, 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 July 21, 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 July 21, 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 July 21, 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 July 21, 2021 Philadelphia, PA hail event.