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 1.25". There are 0 public hail reports, 14 public wind reports, and 8 nearby tornado reports listed for the September 1, 2021 event.
View the September 1, 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 September 1, 2021 hail swath map for Philadelphia, PA covers approximately 111 square miles and includes an estimated 3,653 people inside the mapped footprint. The largest mapped area is in the 0.50-0.75" hail band, covering 44 square miles. The highest estimated population exposure is in the 0.50-0.75" hail band with 1,615 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 36 sq mi | 1,159 |
| 0.50-0.75" | 44 sq mi | 1,615 |
| 0.75-1.00" | 19 sq mi | 524 |
| 1.00-1.25" | 8 sq mi | 241 |
| 1.25-1.50" | 4 sq mi | 114 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the September 1, 2021 Philadelphia, PA hail event may have reached your area.
Housing Exposure Inside the Philadelphia, PA Hail Swath Map
Inside the September 1, 2021 hail swath map area for Philadelphia, PA, HailGeeks estimates 1,885 single-family homes, 11 townhomes, and 166 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the 0.50-0.75" hail band, with 842 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 569 | 5 | 28 |
| 0.50-0.75" | 842 | 5 | 67 |
| 0.75-1.00" | 281 | 1 | 39 |
| 1.00-1.25" | 131 | 0 | 22 |
| 1.25-1.50" | 62 | 0 | 10 |
Use this table to review housing exposure by hail band for the September 1, 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 September 1, 2021 storm was mapped across 4 counties in the Philadelphia, PA region. Ocean County, NJ had the strongest mapped signal, peaking at 1.25" with roughly 1,629 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 3 cities near Philadelphia, PA. Beachwood, NJ had the strongest mapped signal at 0.50", with an estimated 198 single-family homes exposed.
City cards show where the September 1, 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 September 1, 2021 Philadelphia, PA hail map spans 8 ZIP codes. ZIP 08731 shows the strongest local signal, with mapped hail estimates up to 1.25" and an estimated single-family-home exposure of 811.
Check your ZIP in seconds to see whether hail activity from the September 1, 2021 Philadelphia, PA event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the September 1, 2021 hail map for Philadelphia, PA currently list 0 public hail reports, 14 public wind reports, and 8 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 |
|---|---|---|---|---|
September 1, 2021 3:10 PM CT | 1 SSE Bay View | MD | TREE DOWN ON LUMS ROAD. | |
September 1, 2021 3:17 PM CT | 1 SE Oxford | PA | TREES AND POWER POLES SNAPPED AND ROOF DAMAGE ALONG SLATE HILL DRIVE IN EAST NOTTINGHAM TOWNSHIP. PROBABLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 3:21 PM CT | 2 S Upper Oxford Twp | PA | MULTIPLE TREES DOWN ALONG US 1 SOUTH NEAR NEW LONDON. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 4:39 PM CT | 1 S Furlong | PA | NUMEROUS TREES DOWN AND MINOR DAMAGE TO STRUCTURES IN A SWATH GENERALLY PARALLEL TO AND JUST NORTH OF YORK ROAD BETWEEN SUGAR BOTTOM ROAD AND ROUTE 202. | |
September 1, 2021 4:39 PM CT | Fort Washington | PA | SINGIFICANT TREE DAMAGE IN THE FORT WASHINGTON AREA. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 4:39 PM CT | Upper Dublin Twp | PA | CONSIDERABLE TREE DAMAGE IN FORT WASHINGTON NEAR THE HIGH SCHOOL. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 4:44 PM CT | 1 SE Lower Gwynedd Twp | PA | TREE AND POWER LINE DAMAGE AROUND MAPLE GLEN. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 4:46 PM CT | 2 WNW Horsham | PA | MULTIPLE BUILDINGS HAD THEIR ROOFS BLOWN OFF ALONG NORRISTOWN ROAD. NORRISTOWN ROAD IS COMPLETELY BLOCKED WITH DEBRIS. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 5:27 PM CT | Wenonah | NJ | FUNNEL CLOUD SPOTTED AND DAMAGE REPORTED IN WENONAH. POSSIBLY DUE TO A TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 5:40 PM CT | 1 ESE Oaklyn | NJ | SEVERAL SOFT WOOD TREES AND POLES SNAPPED AND LOSS OF SOME SIDING ON SOME HOMES ALONG CUTHBERT ROAD... LEES LANE... HEATHER ROAD (IN HADDON TOWNSHIP)... AND BARRETT AVE (JUST TO THE SE IN AUDOBON). DAMAGE IS CONSISTENT WITH 90 MPH WINDS. | |
September 1, 2021 5:40 PM CT | 1 WNW Cherry Hill Twp | NJ | MULTIPLE TREES AND WIRES DOWN AROUND CHERRY HILL. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 5:55 PM CT | 1 NE Cooperstown | NJ | DAMAGE REPORTED NEAR ROUTE 130 IN THE WILLINGBORO AND EDGEWATER PARK AREA. PROBABLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 6:25 PM CT | Lawrence Twp | NJ | TREES AND WIRES DOWN IN LAWRENCEVILLE TOWNSHIP. POSSIBLE TORNADO. TIME ESTIMATED FROM RADAR. | |
September 1, 2021 6:06 PM CT | 69 mph | 1 WNW Burlington | NJ | No National Weather Service description provided. |
| Date & Time | Rating | City | State | Description |
|---|---|---|---|---|
September 1, 2021 3:15 PM CT | UNK | 1 SSE Oxford | PA | AN EMBEDDED SUPERCELL IN A QUASI-LINEAR FEATURE PRODUCED A TORNADO NEAR OXFORD... PA. A PATH OF DAMAGE BEGAN IN CROP LAND NEAR THE INTERSECTION OF 5TH STREET AND WATERWAY ROAD. TREE DAMAGE CONTINUED NORTHEAST OF HERE. SIGNIFICANT DAMAGE OCCURRED IN THE WILTSHIRE DEVELOPMENT. ON SLATE HILL DRIVE... ONE HOUSE LOST A SOUTHEAST FACING EXTERIOR WALL. ANOTHER HOUSE LOST A SIGNIFICANT AMOUNT OF SIDING AND A PORTION OF THE ROOF. TREE DAMAGE CONTINUED IN A NORTHEAST PATH. AT HICKORY HILL ROAD... THERE WAS DAMAGE TO THE ROOF OF A COMMERCIAL OUTBUILDING AND A RECREATIONAL TRAILER WAS FLIPPED ON ITS SIDE. SPORADIC TREE AND CROP DAMAGE WAS NOTED FROM DRONE FOOTAGE...THIS PORTION OF THE PATH WAS INACCESSIBLE BY VEHICLE...CONTINUING TO THE NORTHEAST. A METAL STORAGE BUILDING AT A BUSINESS ALONG REEDVILLE ROAD HAD WALL AND ROOF DAMAGE. FURTHER NORTHEAST THERE WAS DAMAGE TO TURKEY PENS NEAR THE INTERSECTION OF BALTIMORE PIKE AND WEST BRANCH ROAD. ADDITIONAL TREE AND POWER POLE DAMAGE CONTINUED IN A NORTHE |
September 1, 2021 4:35 PM CT | UNK | 2 NNE Whitemarsh Twp | PA | *** 1 FATAL... 2 INJ *** A SEMI-DISCRETE SUPERCELL THUNDERSTORM BEGAN TO EXHIBIT ROTATION OVER DELAWARE COUNTY... PA AROUND 5:15 PM ON SEPTEMBER 1. THE ROTATION CONTINUED NORTH-NORTHEAST INTO MONTGOMERY COUNTY... AND EVENTUALLY STRENGTHENED ENOUGH TO PRODUCE A TORNADO. MINOR TREE DAMAGE WAS FIRST OBSERVED ALONG STENTON AVE IN FORT WASHINGTON IN THE AREA OF THE PHILADELPHIA CRICKET CLUB. A PATH OF TREE DAMAGE WAS OBSERVED HEADING NORTHEAST ALONG JOSHUA RD AND THROUGH FORT WASHINGTON STATE PARK. SOME MINOR SHINGLE AND SIDING DAMAGE TO HOUSES WAS ALSO SEEN. DAMAGE BECAME MORE SEVERE AFTER THE TORNADO CROSSED THE PENNSYLVANIA TURNPIKE. AT THIS TIME THE TORNADO ALSO MOVED INTO A MORE RESIDENTIAL AREA. DAMAGE WAS OBSERVED ALONG MONTGOMERY AVE... SPRING AVE... AND PROSPECT AVE AND NUMEROUS CROSSING STREETS OF THOSE. THIS MAINLY CONSISTED OF NUMEROUS SNAPPED AND UPROOTED TREES WITH MINOR TO MODERATE ROOFING AND SIDING DAMAGE TO A NUMBER OF HOMES. THE WORST DAMAGE WAS OBSERVED SLIGHTLY FARTHER NORTHEA |
September 1, 2021 4:59 PM CT | UNK | 1 WNW Warwick Twp | PA | THE STORM WHICH PRODUCED A STRONG TORNADO IN MONTGOMERY COUNTY... PA... CYCLED AND PRODUCED ANOTHER TORNADO IN BUCKS COUNTY... PA. DAMAGE BEGAN NEAR IN THE AREA OF NESHAMINY CREEK BETWEEN VALLEY RD AND PEBBLE HILL RD IN DOYLESTOWN. THE TORNADO TRACKED NORTH-NORTHEAST FROM THERE... PRODUCING A CONSISTENT PATH OF DAMAGE. DAMAGE WAS MAINLY CONFINED TO TREES AND WAS FAIRLY EXTENSIVE AT TIMES... WITH MUCH OF THE PATH LENGTH BEING HEAVILY WOODED. NUMEROUS HARDWOOD AND SOFTWOOD TREES WERE SNAPPED AND UPROOTED ALONG THE PATH. DAMAGE WAS STRONGLY SUGGESTIVE OF TORNADIC WINDS... AND A TORNADO DEBRIS SIGNATURE WAS ALSO EVIDENT ON RADAR. THE HEAVIEST DAMAGE OCCURRED NEAR AND ALONG A STRETCH OF EDISON- FURLONG RD. EXTENSIVE TREE DAMAGE OCCURRED ALONG THAT ROAD AND A NUMBER OF ITS CROSS STREETS. SEVERAL UTILITY POLES WERE SNAPPED IN THIS AREA. TREE DAMAGE ALONG NEARBY SWAMP RD WAS ALSO SIGNIFICANT. THE TORNADO CONTINUED BUT BEGAN TO LOSE INTENSITY AS IT APPROACHED ROUTE 202... WITH SPORADIC TREE DAMAGE OBSERVE |
September 1, 2021 5:10 PM CT | UNK | 1 SE Harrisonville | NJ | *** 2 INJ *** CORRECTS PREVIOUS TORNADO REPORT FROM 1 SE HARRISONVILLE. THE TORNADO TOUCHED DOWN NEAR HARRISONVILLE... NJ DOING MOSTLY DAMAGE TO TREES AND LIMBS BEFORE STRENGTHENING AND MOVING NORTHEAST. AS IT MOVED TO THE NORTHEAST... IT CROSSED INTO THE CEDAR GROVE AREA PRODUCING MORE SIGNIFICANT DAMAGE TO TREES WITH MANY TREES UPROOTED. THE TORNADO MOVED INTO THE WILLOW OAKS SUBDIVISION STRENGTHENING FURTHER AND PRODUCING SIGNIFICANT DAMAGE TO TREES... AS WELL AS SERIOUS STRUCTURAL DAMAGE TO A NUMBER OF HOMES. SEVERAL HOMES HAD EXTERIOR WALLS COMPLETELY COLLAPSED... A NUMBER OF HOMES LOST ROOFS AND UPPER STORY WALLS... AND ONE HOME HAD ONLY A FEW INTERIOR WALLS REMAINING. VEHICLES WERE TOSSED AROUND AND MOVED... AND DAMAGE FROM FLYING DEBRIS WAS OBSERVED IN SEVERAL SPOTS. THE TORNADO CONTINUED TO MOVE TO THE NORTHEAST TO BRIDGETON PIKE WHERE MULTIPLE TREES HAD TRUNKS SNAPPED AND MOST OF THE BARNS AND STORAGE BUILDINGS AT A LARGE COMMERCIAL FARM WERE COMPLETELY DESTROYED. THE TORNADO ALSO REA |
September 1, 2021 5:21 PM CT | UNK | 1 ENE Mullica Hill | NJ | SIGNIFICANT DAMAGE IN THE MULLICA HILL AREA INCLUDING SEVERAL HOMES DAMAGED AND TREES DOWN ON CEDAR ROAD. TIME ESTIMATED FROM RADAR. |
September 1, 2021 5:30 PM CT | UNK | Upper Makefield Twp. | PA | A TORNADO EMBEDDED WITHIN A SQUALL LINE DEVELOPED SEVERAL MILES SOUTHEAST OF THE STORM WHICH PRODUCED A TORNADO IN BUCKINGHAM TOWNSHIP. TORNADIC DAMAGE WAS FIRST OBSERVED IN THE VICINITY OF STONEYBROOK RD AT EAGLE RD... NEAR JERICHO CREEK. THE TORNADO TRACKED NORTHEASTWARD FROM THERE. IT PASSED OVER THE JERICHO NATIONAL GOLF CLUB... AND SPORADIC TREE DAMAGE MAINLY CONSISTING OF UPROOTS AND LARGE LIMBS SNAPPED WAS OBSERVED IN A PATH THROUGHOUT THE GOLF COURSE. IT THEN MOVED OVER THE ADJACENT BROWNSBURG PARK... WHERE ADDITIONAL TREE DAMAGE WAS OBSERVED AND SEVERAL SOCCER GOALS WERE OBSERVED FLIPPED IN VARIOUS DIRECTIONS. THE TORNADO THEN BEGAN TO APPROACH THE DELAWARE RIVER. SOME MINOR TREE DAMAGE WAS OBSERVED ALONG RIVER RD. HOWEVER... THE TORNADO APPEARED TO LIFT JUST SLIGHTLY BEFORE REACHING THE DELAWARE RIVER... WITH NO APPARENT DAMAGE ON PEBBLETOWN RD JUST PRIOR TO THE RIVER. THROUGHOUT ITS PATH... THE TREE DAMAGE PRODUCED BY THIS TORNADO WAS FAIRLY SPORADIC... AND IT MAY HAVE BEEN DISCONTINUO |
September 1, 2021 5:59 PM CT | UNK | 1 NE Cooperstown | NJ | AFTER CYCLING FROM AN EARLIER TORNADO NEAR MULLICA HILL... NJ... A SUPERCELL THUNDERSTORM PRODUCED AN ADDITIONAL TORNADO IN BURLINGTON TOWNSHIP... NJ NEAR THE TOWNSHIP LINE WITH EDGEWATER PARK... NJ. SOME EVIDENCE OF RFD WINDS WAS PREVALENT SOUTHWARD THROUGH THE CAPITOL HILL NEIGHBORHOOD OF EDGEWATER PARK WITH ONE PINE TREE BEING UPROOTED AND SEVERAL SMALL BRANCHES BEING BROUGHT DOWN ALL THE WAY SOUTH TO PENNINGTON PARK IN DELANCO TOWNSHIP... NJ...BUT DAMAGE WAS TOO SPARSE TO BE NOTED AS TORNADIC. AS THE TORNADO TOUCHED DOWN... NUMEROUS HARD AND SOFTWOOD TREES WERE UPROOTED ALONG JENNIFER LANE IN A NEIGHBORHOOD JUST OFF OF BEVERLY ROAD IN BURLINGTON TOWNSHIP. A LARGE BRANCH WAS ALSO BROUGHT DOWN ON A VEHICLE AT THE INTERSECTION OF JENNIFER LANE AND SQUIRE WAY. NEARBY... A PINE TREE WAS BROUGHT DOWN... BREAKING A WINDOW TO A RESIDENCE FURTHER WEST ON JENNIFER LANE WITH A SMALL SYCAMORE TREE ALSO BEING SNAPPED AT THE BASE A FEW HOUSES DOWN THE ROAD. AS THE TORNADO CROSSED SHIVE PLACE AND HANDLER DRIVE... |
September 1, 2021 6:32 PM CT | UNK | 2 W West Windsor Twp. | NJ | A TORNADO TOUCHED DOWN ALONG EMMONS DRIVE ALONG ROUTE 1 IN PRINCETON... NJ AS A REMNANT SUPERCELL MOVED NORTHWARD AFTER PRODUCING THE MULLICA HILL AND BURLINGTON... NJ TORNADOES EARLIER WEDNESDAY AFTERNOON AS IDA`S REMNANTS MOVED THROUGH THE REGION. DAMAGE FIRST OCCURRED AS SEVERAL SMALL BRANCHES WERE BROUGHT DOWN ALONG THE WHOLE FOODS AND WENDYS PARKING LOTS ALONG ROUTE 1 IN FAR EASTERN PRINCETON TOWNSHIP... WITH A CONTINUED PATH OF MINOR BRANCH DAMAGE EXTENDING NORTHWARD ALONG FARBER ROAD... MEADOW DRIVE... AND CANAL POINTE BOULEVARD ADJACENT TO ROUTE 1. SEVERAL MEDIUM-SIZE TREES WERE ALSO UPROOTED WITH NUMEROUS SMALL BRANCHES HAVING BEEN BROUGHT DOWN ALONG THE WESTERN PERIPHERY OF THE MARKETFAIR SHOPPING PARKING LOT. FROM THERE... THE TORNADO CONTINUED NORTHWARD WITH MINOR TREE DAMAGE HAVING OCCURRED ALONG CARNEGIE CENTER BOULEVARD AS THE TORNADO MOVED NORTHWARD. SEVERAL SMALL BRANCHES WERE ALSO BROUGHT DOWN IN A RESIDENTIAL AREA ALONG HERITAGE BOULEVARD WITH ONE PINE TREE EVEN HAVING BEEN S |
This table includes only public storm reports connected to the September 1, 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 September 1, 2021 event. These related maps cover storm dates from Jul 17, 2021 through Aug 27, 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 Aug 27, 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 September 1, 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 September 1, 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 September 1, 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 September 1, 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 September 1, 2021 Philadelphia, PA hail event.