Hail Swath Map Preview
The Saint Louis, MO hail swath map preview was last reviewed on August 28, 2026 and shows mapped hail estimates up to 2.50". There are 26 public hail reports, 3 public wind reports, and 0 nearby tornado reports listed for the March 31, 2023 event.
View the March 31, 2023 Saint Louis, MO 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 Saint Louis, MO Hail Map
The March 31, 2023 hail swath map for Saint Louis, MO covers approximately 947 square miles and includes an estimated 169,144 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 464 square miles. The highest estimated population exposure is in the < 0.50" hail band with 80,078 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 464 sq mi | 80,078 |
| 0.50-0.75" | 261 sq mi | 28,079 |
| 0.75-1.00" | 81 sq mi | 17,288 |
| 1.00-1.25" | 49 sq mi | 11,181 |
| 1.25-1.50" | 47 sq mi | 15,921 |
| 1.50-1.75" | 22 sq mi | 9,184 |
| 1.75-2.00" | 12 sq mi | 4,781 |
| 2.00-2.25" | 7 sq mi | 2,440 |
| 2.25-2.50" | 2 sq mi | 178 |
| 2.50-2.75" | 2 sq mi | 14 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the March 31, 2023 Saint Louis, MO hail event may have reached your area.
Housing Exposure Inside the Saint Louis, MO Hail Swath Map
Inside the March 31, 2023 hail swath map area for Saint Louis, MO, HailGeeks estimates 78,317 single-family homes, 3,702 townhomes, and 23,087 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the < 0.50" hail band, with 36,141 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 36,141 | 1,739 | 13,222 |
| 0.50-0.75" | 12,674 | 659 | 2,301 |
| 0.75-1.00" | 8,508 | 491 | 2,157 |
| 1.00-1.25" | 5,028 | 235 | 1,354 |
| 1.25-1.50" | 7,671 | 275 | 2,432 |
| 1.50-1.75" | 4,332 | 169 | 791 |
| 1.75-2.00" | 2,660 | 74 | 451 |
| 2.00-2.25" | 1,213 | 57 | 359 |
| 2.25-2.50" | 82 | 3 | 20 |
| 2.50-2.75" | 8 | 0 | 0 |
Use this table to review housing exposure by hail band for the March 31, 2023 Saint Louis, MO hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the Saint Louis, MO Hail Map
Hail from the March 31, 2023 storm was mapped across 19 counties in the Saint Louis, MO region. Monroe County, IL had the strongest mapped signal, peaking at 2.50" with roughly 5,387 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 Saint Louis, MO Hail Map
Zooming in, the swath touched 33 cities near Saint Louis, MO. Festus, MO had the strongest mapped signal at 2.00", with an estimated 2,682 single-family homes exposed.
City cards show where the March 31, 2023 Saint Louis, MO 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 Saint Louis, MO Hail Swath Map
At the ZIP level, the March 31, 2023 Saint Louis, MO hail map spans 65 ZIP codes. ZIP 62295 shows the strongest local signal, with mapped hail estimates up to 2.50" and an estimated single-family-home exposure of 446.
Check your ZIP in seconds to see whether hail activity from the March 31, 2023 Saint Louis, MO event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the March 31, 2023 hail map for Saint Louis, MO currently list 26 public hail reports, 3 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
March 31, 2023 5:15 PM CT |
1.25 in | Sullivan | MO | SPOTTER CALLED BACK WITH AN UPDATE OUT OF SULLIVAN. LARGEST HAIL THE SPOTTER OBSERVED WAS SLIGHTLY LARGER THAN A QUARTER. TIME ESTIMATED BY RADAR. |
March 31, 2023 5:16 PM CT |
1.75 in | Sullivan | MO | ALSO REPORTED ROTATING WALL CLOUD. |
March 31, 2023 5:25 PM CT |
1.00 in | Troy | MO | No National Weather Service description provided. |
March 31, 2023 6:10 PM CT |
1.00 in | 1 ESE De Soto | MO | DELAYED REPORT... TIME ESTIMATED FROM RADAR. |
March 31, 2023 6:18 PM CT |
1.75 in | 1 NNW Festus | MO | REPORT FROM MPING: GOLF BALL (1.75 IN.). |
March 31, 2023 6:19 PM CT |
1.50 in | 1 N Crystal City | MO | DELAYED REPORT... TIME ESTIMATED FROM RADAR. |
March 31, 2023 6:20 PM CT |
1.00 in | 2 ESE De Soto | MO | No National Weather Service description provided. |
March 31, 2023 6:31 PM CT |
1.00 in | 2 ESE Hematite | MO | No National Weather Service description provided. |
March 31, 2023 6:32 PM CT |
1.50 in | Crystal City | MO | DELAYED REPORT. |
March 31, 2023 6:36 PM CT |
1.00 in | 4 N Millstadt | IL | DELAYED REPORT. REPORT FROM MPING: QUARTER (1.00 IN.). |
March 31, 2023 6:37 PM CT |
1.75 in | 3 WNW Belleville | IL | No National Weather Service description provided. |
March 31, 2023 6:37 PM CT |
1.00 in | 1 ENE Valmeyer | IL | No National Weather Service description provided. |
March 31, 2023 6:38 PM CT |
1.00 in | 1 ESE Belleville | IL | No National Weather Service description provided. |
March 31, 2023 6:38 PM CT |
1.00 in | 2 SSW Belleville | IL | DELAYED REPORT. REPORT FROM MPING: QUARTER (1.00 IN.). |
March 31, 2023 6:39 PM CT |
1.50 in | Valmeyer | IL | No National Weather Service description provided. |
March 31, 2023 6:39 PM CT |
1.50 in | 3 WNW Belleville | IL | REPORT FROM MPING: PING PONG BALL (1.50 IN.). |
March 31, 2023 6:39 PM CT |
1.00 in | 1 NNW Belleville | IL | DELAYED REPORT. |
March 31, 2023 6:40 PM CT |
1.25 in | 1 WNW Swansea | IL | REPORT VIA FACEBOOK WITH PICTURE. |
March 31, 2023 6:41 PM CT |
1.00 in | 1 W Shiloh | IL | DELAYED REPORT... TIME ESTIMATED FROM RADAR. REPORT FROM MPING: QUARTER (1.00 IN.). |
March 31, 2023 6:42 PM CT |
1.00 in | 1 WNW Swansea | IL | CORRECTS PREVIOUS HAIL REPORT FROM 1 WNW SWANSEA. |
March 31, 2023 6:42 PM CT |
1.50 in | Belleville | IL | No National Weather Service description provided. |
March 31, 2023 6:42 PM CT |
1.25 in | O'Fallon | IL | DELAYED REPORT... TIME ESTIMATED FROM RADAR. REPORT FROM MPING: HALF DOLLAR (1.25 IN.). |
March 31, 2023 6:44 PM CT |
1.25 in | 2 NW Swansea | IL | DELAYED REPORT... TIME ESTIMATED FROM RADAR. |
March 31, 2023 6:53 PM CT |
1.50 in | 3 WNW Belleville | IL | REPORTED VIA FACEBOOK WITH PICTURE. |
March 31, 2023 6:54 PM CT |
1.50 in | 1 SSE O'Fallon | IL | SPOTTER OBSERVED QUARTER SIZE HAIL WITH A FEW STONE SLIGHTLY SMALLER THAN GOLF BALLS. |
March 31, 2023 6:54 PM CT |
1.00 in | 1 N O'Fallon | IL | SPOTTER OBSERVED ONE INCH HAIL AND MEASURED 65 MPH GUST WITH A HANDHELD ANEMOMETER. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
March 31, 2023 6:59 PM CT | 3 WNW Clarkson Valley | MO | TREE SNAPPED AT BASE THAT CAUSED POWER LINES DOWN. | |
March 31, 2023 9:37 PM CT | 4 E Ava | IL | TREE LIMBS DOWN. PIECES OF SHEET METAL BLOWN AROUND. WIND GUSTS ESTIMATED 60-65 MPH. TIME ESTIMATED FROM RADAR. | |
March 31, 2023 6:27 PM CT | 60 mph | 1 S Festus | MO | SPOTTER WAS SOUTH OF EXIT 175 OFF OF I-55 AND ESTIMATED WINDS APPROACHED 60 MPH. |
| 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 March 31, 2023 Saint Louis, MO storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the Saint Louis, MO Region
We found 6 more hail maps with reports from the same Saint Louis, MO region as the March 31, 2023 event. These related maps cover storm dates from Aug 20, 2022 through Feb 15, 2023, 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 Feb 15, 2023.
If none of these related Saint Louis, MO 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 Saint Louis, MO region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near Saint Louis, MO
Not sure whether the March 31, 2023 Saint Louis, MO 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 Saint Louis, MO 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 March 31, 2023 Saint Louis, MO event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the Saint Louis, MO 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 March 31, 2023 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 March 31, 2023 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the Saint Louis, MO 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 March 31, 2023 Saint Louis, MO hail event.