Hail Swath Map Preview
The Grand Rapids, MN hail swath map preview was last reviewed on August 27, 2026 and shows mapped hail estimates up to 1.50". There are 4 public hail reports, 3 public wind reports, and 0 nearby tornado reports listed for the September 16, 2021 event.
View the September 16, 2021 Grand Rapids, MN 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 Grand Rapids, MN Hail Map
The September 16, 2021 hail swath map for Grand Rapids, MN covers approximately 1,664 square miles and includes an estimated 15,985 people inside the mapped footprint. The largest mapped area is in the 0.50-0.75" hail band, covering 698 square miles. The highest estimated population exposure is in the < 0.50" hail band with 7,281 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 488 sq mi | 7,281 |
| 0.50-0.75" | 698 sq mi | 5,079 |
| 0.75-1.00" | 299 sq mi | 2,075 |
| 1.00-1.25" | 142 sq mi | 1,260 |
| 1.25-1.50" | 34 sq mi | 267 |
| 1.50-1.75" | 4 sq mi | 23 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the September 16, 2021 Grand Rapids, MN hail event may have reached your area.
Housing Exposure Inside the Grand Rapids, MN Hail Swath Map
Inside the September 16, 2021 hail swath map area for Grand Rapids, MN, HailGeeks estimates 11,160 single-family homes, 79 townhomes, and 815 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 5,007 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 5,007 | 33 | 537 |
| 0.50-0.75" | 3,633 | 26 | 168 |
| 0.75-1.00" | 1,491 | 10 | 57 |
| 1.00-1.25" | 831 | 9 | 49 |
| 1.25-1.50" | 176 | 1 | 4 |
| 1.50-1.75" | 22 | 0 | 0 |
Use this table to review housing exposure by hail band for the September 16, 2021 Grand Rapids, MN hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Grand Rapids, MN Hail Map
Hail from the September 16, 2021 storm was mapped across 7 counties in the Grand Rapids, MN region. Aitkin County, MN had the strongest mapped signal, peaking at 1.50" with roughly 3,587 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 Grand Rapids, MN Hail Map
Zooming in, the swath touched 13 cities near Grand Rapids, MN. Mountain Iron, MN had the strongest mapped signal at 1.00", with an estimated 472 single-family homes exposed.
City cards show where the September 16, 2021 Grand Rapids, MN 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 Grand Rapids, MN Hail Swath Map
At the ZIP level, the September 16, 2021 Grand Rapids, MN hail map spans 40 ZIP codes. ZIP 56431 shows the strongest local signal, with mapped hail estimates up to 1.50" and an estimated single-family-home exposure of 928.
Check your ZIP in seconds to see whether hail activity from the September 16, 2021 Grand Rapids, MN event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the September 16, 2021 hail map for Grand Rapids, MN currently list 4 public hail reports, 3 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
September 16, 2021 6:21 PM CT |
1.00 in | 3 NW Libby | MN | NICKLE TO OCCASIONAL QUARTER SIZE HAIL. |
September 16, 2021 7:21 PM CT |
1.00 in | 1 WSW Waldeck | MN | No National Weather Service description provided. |
September 16, 2021 11:58 PM CT |
3.00 in | 5 S Saginaw | MN | LARGE HAIL LED TO DAMAGE TO HOLES IN CANVAS TENTS... LARGE DENTS IN VEHICLES... AND LEAVES COMPLETELY STRIPPED OFF TREES. |
September 17, 2021 12:00 AM CT |
1.00 in | 4 SW Saginaw | MN | REPORT RELAYED VIA SOCIAL MEDIA. SOME NICKEL SIZE HAIL WAS ALSO REPORTED... BUT QUARTERS WERE THE LARGEST SIZE. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
September 16, 2021 6:25 PM CT | 4 NNE Cuyuna | MN | SEVERAL LARGE OAK TREES BLOWN DOWN REPORTED VIA SOCIAL MEDIA. TIME ESTIMATED VIA RADAR AND ESTIMATION FROM REPORTER. | |
September 16, 2021 6:55 PM CT | 5 SW Gowan | MN | TWO TREES DOWN COMPLETELY BLOCKING ROADWAY. TIME ESTIMATED FROM RADAR. | |
September 16, 2021 7:00 PM CT | Palisade | MN | FLAG POLES WERE BLOWN OVER BY WIND GUSTS. |
| 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 September 16, 2021 Grand Rapids, MN storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Grand Rapids, MN Region
We found 6 more hail maps with reports from the same Grand Rapids, MN region as the September 16, 2021 event. These related maps cover storm dates from Jul 23, 2021 through Sep 6, 2021, with mapped hail estimates ranging from 0.75" to 3.75". In this set, the strongest related map reached 3.75", and the most recent map shown is from Sep 6, 2021.
If none of these related Grand Rapids, MN 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 Grand Rapids, MN region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Grand Rapids, MN
Not sure whether the September 16, 2021 Grand Rapids, MN 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 Grand Rapids, MN 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 16, 2021 Grand Rapids, MN event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Grand Rapids, MN 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 16, 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 16, 2021 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Grand Rapids, MN 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 16, 2021 Grand Rapids, MN hail event.