Hail Swath Map Preview
The Dayton, OH 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, 16 public wind reports, and 0 nearby tornado reports listed for the August 11, 2021 event.
View the August 11, 2021 Dayton, OH 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 Dayton, OH Hail Map
The August 11, 2021 hail swath map for Dayton, OH covers approximately 471 square miles and includes an estimated 36,169 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 259 square miles. The highest estimated population exposure is in the < 0.50" hail band with 20,381 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 259 sq mi | 20,381 |
| 0.50-0.75" | 179 sq mi | 14,773 |
| 0.75-1.00" | 34 sq mi | 1,015 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the August 11, 2021 Dayton, OH hail event may have reached your area.
Housing Exposure Inside the Dayton, OH Hail Swath Map
Inside the August 11, 2021 hail swath map area for Dayton, OH, HailGeeks estimates 16,816 single-family homes, 580 townhomes, and 2,667 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 9,122 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 9,122 | 372 | 1,662 |
| 0.50-0.75" | 7,132 | 186 | 996 |
| 0.75-1.00" | 562 | 22 | 9 |
Use this table to review housing exposure by hail band for the August 11, 2021 Dayton, OH hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Dayton, OH Hail Map
Hail from the August 11, 2021 storm was mapped across 15 counties in the Dayton, OH region. Randolph County, IN had the strongest mapped signal, peaking at 0.75" with roughly 3,767 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 Dayton, OH Hail Map
Zooming in, the swath touched 14 cities near Dayton, OH. Portland, IN had the strongest mapped signal at 0.50", with an estimated 1,389 single-family homes exposed.
City cards show where the August 11, 2021 Dayton, OH 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 Dayton, OH Hail Swath Map
At the ZIP level, the August 11, 2021 Dayton, OH hail map spans 33 ZIP codes. ZIP 47394 shows the strongest local signal, with mapped hail estimates up to 0.75" and an estimated single-family-home exposure of 2,157.
Check your ZIP in seconds to see whether hail activity from the August 11, 2021 Dayton, OH 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 Dayton, OH currently list 0 public hail reports, 16 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 2:10 PM CT | 2 W Portland | IN | MULTIPLE TREES BEING REPORTED DOWN IN THE AREA OF 200 W AND SR 67 NEAR JAY COUNTY HIGH SCHOOL... IN THE CITY OF PORTLAND AND NORTH OF PORTLAND 100 N US 27 AT OAKWOOD TRAILER PARK NO TREE SIZES GIVEN. | |
August 11, 2021 2:13 PM CT | 1 NE St. Marys | OH | SIDING RIPPED OFF THE SIDE OF STRUCTURE. TIME ESTIMATED FROM RADAR DATA. | |
August 11, 2021 2:22 PM CT | Portland | IN | MULTIPLE TREES REPORTED DOWN NEAR 200 W AND SR 67 NEAR JAY COUNTY HIGH SCHOOL. ALSO MULTIPLE TREES DOWN NEAR 100 N AND US 27 NEAR OAKWOOD TRAILER PARK. | |
August 11, 2021 2:23 PM CT | 3 WSW St. Henry | OH | POWER LINES WERE BLOWN DOWN ON TOWNSHP LINE ROAD AND LANGE ROAD | |
August 11, 2021 2:29 PM CT | 5 WSW Minster | OH | SEVERAL TREE LIMBS DOWN ALONG WITH POWERLINES. HUWER AND KREMER ROAD. TIME ESTIMATED FROM RADAR DATA. | |
August 11, 2021 2:29 PM CT | 3 E Bellfountain | IN | TREE DOWN ACROSS STATE LINE ROAD AT 200 S BETWEEN JAY AND MERCER COUNTIES ON THE INDIANA SIDE. | |
August 11, 2021 2:30 PM CT | 3 WSW St. Henry | OH | A TREE WAS BLOWN DOWN ON TOWNSHIP LINE ROAD. | |
August 11, 2021 2:32 PM CT | W Osgood | OH | TWO TREES DOWN IN THE TOWN OF OSGOOD. TIME ESTIMATED FROM RADAR DATA. | |
August 11, 2021 2:36 PM CT | 1 SW Minster | OH | LARGE LIMB DOWN ON BARN ROOF ON MINSTER-EGYPT PIKE W OF MINSTER. TIME ESTIMATED FROM RADAR DATA. | |
August 11, 2021 2:44 PM CT | 5 ESE Fort Loramie | OH | TREE FELL INTO POWER LINE ON MASON RD. TIME EST BY RADAR. | |
August 11, 2021 2:44 PM CT | 5 WSW Minster | OH | POWER LINES WERE BLOWN DOWN AT THE INTERSECTION OF KREMER AND HUWER ROADS | |
August 11, 2021 3:06 PM CT | 6 W St. Paris | OH | TREES DOWN OVER WIRES ALONG HIGHWAY 589 AND SODOM-BALLOU ROAD. | |
August 11, 2021 3:29 PM CT | Richwood | OH | TREES AND POWERLINES WERE BLOWN DOWN... PRIMARILY IN THE NORTHERN PORTION OF THE COUNTY. | |
August 11, 2021 3:30 PM CT | 6 WNW St. Paris | OH | RV CAMPER FLIPPED ON ITS SIDE. TIME ESTIMATED USING RADAR DATA. | |
August 11, 2021 3:38 PM CT | 2 W Radnor | OH | TREE DOWN AT THE INTERSECTION OF RADNOR AND RIVER ROADS | |
August 11, 2021 2:15 PM CT | 67 mph | 1 NNW Portland | IN | MESONET STATION KPLD PORTLAND MUNICIPAL AIRPORT. |
| 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 Dayton, OH storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Dayton, OH Region
We found 6 more hail maps with reports from the same Dayton, OH region as the August 11, 2021 event. These related maps cover storm dates from Jul 6, 2021 through Aug 10, 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 10, 2021.
If none of these related Dayton, OH 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 Dayton, OH region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Dayton, OH
Not sure whether the August 11, 2021 Dayton, OH 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 Dayton, OH 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 Dayton, OH event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Dayton, OH 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 Dayton, OH 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 Dayton, OH hail event.