Hail Swath Map Preview
The Allentown, PA hail swath map preview was last reviewed on August 27, 2026 and shows mapped hail estimates up to 1.00". There are 0 public hail reports, 28 public wind reports, and 0 nearby tornado reports listed for the August 11, 2021 event.
View the August 11, 2021 Allentown, 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 Allentown, PA Hail Map
The August 11, 2021 hail swath map for Allentown, PA covers approximately 624 square miles and includes an estimated 227,549 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 297 square miles. The highest estimated population exposure is in the < 0.50" hail band with 111,870 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 297 sq mi | 111,870 |
| 0.50-0.75" | 251 sq mi | 84,288 |
| 0.75-1.00" | 58 sq mi | 25,796 |
| 1.00-1.25" | 17 sq mi | 5,595 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the August 11, 2021 Allentown, PA hail event may have reached your area.
Housing Exposure Inside the Allentown, PA Hail Swath Map
Inside the August 11, 2021 hail swath map area for Allentown, PA, HailGeeks estimates 82,664 single-family homes, 15,202 townhomes, and 21,367 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 39,501 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 39,501 | 9,087 | 11,109 |
| 0.50-0.75" | 32,827 | 4,757 | 5,711 |
| 0.75-1.00" | 8,648 | 1,175 | 3,886 |
| 1.00-1.25" | 1,688 | 183 | 661 |
Use this table to review housing exposure by hail band for the August 11, 2021 Allentown, PA hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Allentown, PA Hail Map
Hail from the August 11, 2021 storm was mapped across 18 counties in the Allentown, PA region. Morris County, NJ had the strongest mapped signal, peaking at 1.00" with roughly 19,281 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 Allentown, PA Hail Map
Zooming in, the swath touched 69 cities near Allentown, PA. Flanders, NJ had the strongest mapped signal at 1.00", with an estimated 1,733 single-family homes exposed.
City cards show where the August 11, 2021 Allentown, 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 Allentown, PA Hail Swath Map
At the ZIP level, the August 11, 2021 Allentown, PA hail map spans 68 ZIP codes. ZIP 07840 shows the strongest local signal, with mapped hail estimates up to 1.00" and an estimated single-family-home exposure of 4,370.
Check your ZIP in seconds to see whether hail activity from the August 11, 2021 Allentown, PA event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the August 11, 2021 hail map for Allentown, PA currently list 0 public hail reports, 28 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 11, 2021 4:45 PM CT | 3 SSE Millville | PA | TREES DOWN ON THE 2000 BLOCK OF STATE ROUTE 42. | |
August 11, 2021 4:45 PM CT | Elysburg | PA | TREE DOWN IN RALPHO TWP. | |
August 11, 2021 4:55 PM CT | 2 N Landisville | PA | WIRES DOWN. | |
August 11, 2021 4:56 PM CT | Bloomsburg | PA | WIDESPREAD TREES AND WIRES DOWN ACROSS COLUMBIA COUNTY. | |
August 11, 2021 5:00 PM CT | 1 SE Adamstown | PA | WIRES DOWN. | |
August 11, 2021 5:08 PM CT | West Wyomissing | PA | HALF OF LARGE MAPLE TREE DOWN ON ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 5:10 PM CT | Spring Twp | PA | TREES DOWN ON WIRES ON JEFFERSON AVENUE IN SPRING TOWNSHIP.TIME ESTIMATED FROM RADAR. | |
August 11, 2021 5:14 PM CT | 3 ESE Smithville | PA | NUMEROUS REPORTS OF WIRES DOWN. | |
August 11, 2021 5:30 PM CT | 2 W Oley | PA | TREE DOWN AT VICTORIA LN/BULL ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 5:32 PM CT | 1 NNE Oley | PA | TREES AND WIRES DOWN IN OLEY TOWNSHIP ON WATER ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 5:48 PM CT | South Pottstown | PA | TREES AND WIRES BLOCKING RIVER ROAD... THE TREE FELL ON AN UNOCCUPIED PARKED VEHICLE. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 5:48 PM CT | Cedarville | PA | TREE DOWN AND BLOCKING SHEEPHILL ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:00 PM CT | Independence Twp | NJ | SEVERAL DOWNED TREE AND WIRE CALLS IN AND NEAR INDEPENDENCE TWP. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:05 PM CT | 1 NE Hackettstown | NJ | MULTIPLE TREES SNAPPED AND WIRES BLOWN DOWN NEAR THE INTERSECTION OF BILBY ROAD AND WILLOW GROVE STREET. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:06 PM CT | West Chester | PA | TREE BLOCKING ROUTE 3... ALONG THE WEST CHESTER PIKE NEAR WESTTOWN ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:10 PM CT | 2 N Dublin | PA | A FEW REPORTS OF POWER OUTAGES DUE TO TREE DAMAGE IN THE DUBLIN AREA... INCLUDING NEAR IRISH MEETINGHOUSE RD. LIKELY ASSOCIATED WITH OUTFLOW WINDS. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:14 PM CT | 1 NNW West Norriton | PA | TREE DOWN ON TOP OF WIRES AND BLOCKING THE STREET AT GALBRAITH AVE AND WEST MAIN STREET. | |
August 11, 2021 6:15 PM CT | Long Valley | NJ | SEVERAL DOWNED TREE AND WIRE CALLS IN AND NEAR LONG VALLEY. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:15 PM CT | 1 N Willistown Twp | PA | TREE DOWN IN ROADWAY ON GOSHEN ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:25 PM CT | Randolph | NJ | SEVERAL DOWNED TREE AND WIRE CALLS IN AND NEAR RANDOLPH. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:25 PM CT | 1 NW Randolph | NJ | WIRES WERE DOWNED ON NJ-10 EASTBOUND NEAR DOVER CHESTER RD... WITH LANE RESTRICTIONS. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:25 PM CT | 1 NW Randolph | NJ | DOWNED WIRES ON NJ 10 EASTBOUND NEAR DOVER CHESTER ROAD. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:33 PM CT | Aston | PA | MULTIPLE LARGE (6-12INCH DIAMETER) TREE LIMBS DOWN IN ASTON PA. | |
August 11, 2021 6:34 PM CT | 1 NNW Brookhaven | PA | DOWNED TREE ON US-030... TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:35 PM CT | Ridley Park | PA | LARGE TREE DOWN ON A RESIDENTS DECK. REPORT VIA SOCIAL MEDIA WITH A PHOTO. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:40 PM CT | Morristown | NJ | SEVERAL DOWNED TREE AND WIRE CALLS IN AND NEAR MORRISTOWN. TIME ESTIMATED FROM RADAR. | |
August 11, 2021 6:52 PM CT | Hackettstown | NJ | CORRECTS PREVIOUS NON-TSTM WND DMG REPORT FROM HACKETTSTOWN. VIDEO OF A TREE DOWN ON POWER LINES. TIME ESTIMATED FROM RADAR. REPORT VIA SOCIAL MEDIA. | |
August 11, 2021 4:42 PM CT | 58 mph | Lancaster Airport | PA | No National Weather Service description provided. |
| 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 11, 2021 Allentown, 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 Allentown, PA Region
We found 6 more hail maps with reports from the same Allentown, PA region as the August 11, 2021 event. These related maps cover storm dates from Jul 9, 2021 through Aug 10, 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 10, 2021.
If none of these related Allentown, 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 Allentown, PA region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Allentown, PA
Not sure whether the August 11, 2021 Allentown, 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 Allentown, 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 11, 2021 Allentown, PA event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Allentown, 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 11, 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 11, 2021 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Allentown, 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 11, 2021 Allentown, PA hail event.