Hail Swath Map Preview
The Janesville, WI 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, 3 public wind reports, and 0 nearby tornado reports listed for the August 8, 2021 event.
View the August 8, 2021 Janesville, WI 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 Janesville, WI Hail Map
The August 8, 2021 hail swath map for Janesville, WI covers approximately 147 square miles and includes an estimated 22,789 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 101 square miles. The highest estimated population exposure is in the < 0.50" hail band with 11,970 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 101 sq mi | 11,970 |
| 0.50-0.75" | 38 sq mi | 9,065 |
| 0.75-1.00" | 6 sq mi | 1,472 |
| 1.00-1.25" | 2 sq mi | 282 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the August 8, 2021 Janesville, WI hail event may have reached your area.
Housing Exposure Inside the Janesville, WI Hail Swath Map
Inside the August 8, 2021 hail swath map area for Janesville, WI, HailGeeks estimates 9,581 single-family homes, 677 townhomes, and 1,954 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 5,422 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 5,422 | 398 | 522 |
| 0.50-0.75" | 3,573 | 229 | 1,221 |
| 0.75-1.00" | 468 | 44 | 206 |
| 1.00-1.25" | 118 | 6 | 5 |
Use this table to review housing exposure by hail band for the August 8, 2021 Janesville, WI hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Janesville, WI Hail Map
Hail from the August 8, 2021 storm was mapped across 11 counties in the Janesville, WI region. Washington County, WI had the strongest mapped signal, peaking at 1.00" with roughly 2,778 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 Janesville, WI Hail Map
Zooming in, the swath touched 7 cities near Janesville, WI. Elgin, IL had the strongest mapped signal at 0.50", with an estimated 2,609 single-family homes exposed.
City cards show where the August 8, 2021 Janesville, WI 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 Janesville, WI Hail Swath Map
At the ZIP level, the August 8, 2021 Janesville, WI hail map spans 13 ZIP codes. ZIP 53027 shows the strongest local signal, with mapped hail estimates up to 1.00" and an estimated single-family-home exposure of 2,642.
Check your ZIP in seconds to see whether hail activity from the August 8, 2021 Janesville, WI event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the August 8, 2021 hail map for Janesville, WI currently list 0 public hail reports, 3 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 8, 2021 3:13 PM CT | 3 SE Pingree Grove | IL | PHOTOS SHARED ON SOCIAL MEDIA OF SEVERAL TREE LIMBS (ESTIMATED AROUND 6 INCHES TO ONE FOOT IN DIAMETER) DOWNED ALONG WITH DAMAGE TO A GREENHOUSE. TIME ESTIMATED BASED ON RADAR. | |
August 8, 2021 5:07 PM CT | 4 NE Allenton | WI | REPORTS OF A TWO FOOT DIAMETER TREE DOWN ACROSS BEAVER DAM ROAD JUST WEST OF TOWNLINE RD AND A 12 INCH DIAMETER BRANCH DOWN ACROSS TOWNLINE RD. | |
August 8, 2021 5:55 PM CT | 3 S Hanover Park | IL | PHOTO OF LARGE TREE LIMB (OVER 1-2FT) SNAPPED RELAYED VIA TWITTER. ADDITIONAL REPORT OF POWER LINES DOWN AND A BROKEN POWER POLL NORTHEAST OF WEST CHICAGO RELAYED BY EM. TIME AND LOCATIONS ESTIMATED BASED ON 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 8, 2021 Janesville, WI storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Janesville, WI Region
We found 6 more hail maps with reports from the same Janesville, WI region as the August 8, 2021 event. These related maps cover storm dates from Jul 14, 2021 through Aug 7, 2021, with mapped hail estimates ranging from 0.75" to 1.75". In this set, the strongest related map reached 1.75", and the most recent map shown is from Aug 7, 2021.
If none of these related Janesville, WI 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 Janesville, WI region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Janesville, WI
Not sure whether the August 8, 2021 Janesville, WI 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 Janesville, WI 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 8, 2021 Janesville, WI event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Janesville, WI 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 8, 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 8, 2021 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Janesville, WI 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 8, 2021 Janesville, WI hail event.