Hail Swath Map Preview
The Saint Louis, MO hail swath map preview was last reviewed on August 27, 2026 and shows mapped hail estimates up to 3.25". There are 14 public hail reports, 37 public wind reports, and 0 nearby tornado reports listed for the July 9, 2021 event.
View the July 9, 2021 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 July 9, 2021 hail swath map for Saint Louis, MO covers approximately 1,749 square miles and includes an estimated 711,424 people inside the mapped footprint. The largest mapped area is in the < 0.50" hail band, covering 729 square miles. The highest estimated population exposure is in the 0.50-0.75" hail band with 268,893 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 729 sq mi | 208,187 |
| 0.50-0.75" | 653 sq mi | 268,893 |
| 0.75-1.00" | 181 sq mi | 93,587 |
| 1.00-1.25" | 75 sq mi | 40,658 |
| 1.25-1.50" | 31 sq mi | 19,850 |
| 1.50-1.75" | 28 sq mi | 8,865 |
| 1.75-2.00" | 13 sq mi | 9,457 |
| 2.00-2.25" | 12 sq mi | 13,334 |
| 2.25-2.50" | 5 sq mi | 9,600 |
| 2.50-2.75" | 9 sq mi | 14,303 |
| 2.75-3.00" | 5 sq mi | 9,039 |
| 3.00-3.25" | 5 sq mi | 10,408 |
| 3.25-3.50" | 4 sq mi | 5,243 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the July 9, 2021 Saint Louis, MO hail event may have reached your area.
Housing Exposure Inside the Saint Louis, MO Hail Swath Map
Inside the July 9, 2021 hail swath map area for Saint Louis, MO, HailGeeks estimates 306,619 single-family homes, 23,673 townhomes, and 114,970 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the 0.50-0.75" hail band, with 118,349 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 89,841 | 6,979 | 48,531 |
| 0.50-0.75" | 118,349 | 9,267 | 27,229 |
| 0.75-1.00" | 37,637 | 3,718 | 13,865 |
| 1.00-1.25" | 19,332 | 625 | 4,210 |
| 1.25-1.50" | 10,179 | 502 | 3,031 |
| 1.50-1.75" | 4,213 | 350 | 668 |
| 1.75-2.00" | 4,190 | 479 | 1,658 |
| 2.00-2.25" | 5,831 | 451 | 1,254 |
| 2.25-2.50" | 3,063 | 241 | 3,065 |
| 2.50-2.75" | 5,695 | 251 | 3,024 |
| 2.75-3.00" | 2,877 | 273 | 3,659 |
| 3.00-3.25" | 3,787 | 144 | 2,916 |
| 3.25-3.50" | 1,625 | 393 | 1,860 |
Use this table to review housing exposure by hail band for the July 9, 2021 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 July 9, 2021 storm was mapped across 24 counties in the Saint Louis, MO region. St. Louis County, MO had the strongest mapped signal, peaking at 3.25" with roughly 134,188 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 81 cities near Saint Louis, MO. Maryland Heights, MO had the strongest mapped signal at 3.00", with an estimated 9,316 single-family homes exposed.
City cards show where the July 9, 2021 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 July 9, 2021 Saint Louis, MO hail map spans 108 ZIP codes. ZIP 63146 shows the strongest local signal, with mapped hail estimates up to 3.25" and an estimated single-family-home exposure of 7,527.
Check your ZIP in seconds to see whether hail activity from the July 9, 2021 Saint Louis, MO event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the July 9, 2021 hail map for Saint Louis, MO currently list 14 public hail reports, 37 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
July 9, 2021 9:18 PM CT |
1.25 in | 1 SSW Bridgeton | MO | REPORT NEAR I-70 AND I-270 INTERCHANGE. |
July 9, 2021 9:20 PM CT |
1.00 in | Bridgeton | MO | No National Weather Service description provided. |
July 9, 2021 9:21 PM CT |
1.00 in | Saint Ann | MO | No National Weather Service description provided. |
July 9, 2021 9:21 PM CT |
1.00 in | Overland | MO | No National Weather Service description provided. |
July 9, 2021 9:22 PM CT |
2.00 in | 2 ESE Maryland Heights | MO | FACEBOOK PICTURE OF 2 INCH HAIL. |
July 9, 2021 9:23 PM CT |
1.75 in | 2 S Bridgeton | MO | REPORTED NEAR PARKWOOD AND ST. CHARLES ROCK ROAD. |
July 9, 2021 9:31 PM CT |
1.25 in | 2 NNE Creve Coeur | MO | REPORT FROM MPING: HALF DOLLAR (1.25 IN.). |
July 9, 2021 9:32 PM CT |
1.50 in | 1 NNW Creve Coeur | MO | REPORT FROM MPING: PING PONG BALL (1.50 IN.). |
July 9, 2021 9:32 PM CT |
1.75 in | 1 N Creve Coeur | MO | REPORT FROM MPING: GOLF BALL (1.75 IN.). |
July 9, 2021 9:42 PM CT |
1.00 in | 1 ENE Creve Coeur | MO | No National Weather Service description provided. |
July 9, 2021 9:45 PM CT |
1.75 in | Creve Coeur | MO | AT MOSLEY AND LADUE. |
July 9, 2021 9:47 PM CT |
1.00 in | 1 NW Brentwood | MO | No National Weather Service description provided. |
July 9, 2021 11:43 PM CT |
1.00 in | 3 WNW Saint Paul | MO | REPORT FROM MPING: QUARTER (1.00 IN.). |
July 10, 2021 2:06 AM CT |
1.75 in | Ellis Grove | IL | No National Weather Service description provided. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
July 9, 2021 11:45 AM CT | 4 SSW Troy | MO | TREE HAS FALLEN INTO A HOUSE ALONG HWY J. | |
July 9, 2021 11:33 PM CT | Michael | IL | CALHOUN COUNTY SHERIFF RECEIVED REPORTS OF TREES DOWN NEAR MICHAEL. TIME ESTIMATED BY RADAR. | |
July 9, 2021 11:40 PM CT | Hawk Point | MO | TREES DOWN WITH WINDS ESTIMATED TO BE NEAR 60 MPH. | |
July 9, 2021 11:42 PM CT | Warrenton | MO | DELAYED REPORT: LARGE SIGN DAMAGED NEAR THE SHOPPING CENTER OFF WARREN COUNTY CTR. SEVERAL TREES DOWN IN THE AREA... ONE OF WHICH IS 3 FEET IN DIAMETER AND UPROOTED. TIME ESTIMATED BY RADAR. | |
July 9, 2021 11:42 PM CT | 3 NNE Warrenton | MO | DELAYED REPORT: SPOTTER CALLED TO REPORT DAMAGE TO SEVERAL MANUFACTURED HOMES NEAR OFF CRANBERRY COURT. UNDERPINNING HAS BEEN BLOWN OFF WITH A COUPLE OF HOMES SUFFERING DAMAGE TO TIE DOWNS/SUPPORTS. TIME ESTIMATED BY RADAR. | |
July 9, 2021 11:45 PM CT | 4 SSW Troy | MO | CORRECTS PREVIOUS TSTM WND DMG REPORT FROM 4 SSW TROY. TREE HAS FALLEN INTO A HOUSE ALONG HWY J. | |
July 9, 2021 11:46 PM CT | Troy | MO | TREES AND POWERLINES DOWN. | |
July 9, 2021 11:52 PM CT | 2 SSW Wright City | MO | TREE TOPPED. SMALL SHED MOVED SEVERAL FEET. | |
July 10, 2021 12:00 AM CT | 4 WSW New Melle | MO | SEVERAL UTILITY POLES HAVE BEEN SNAPPED IN HALF NEAR HIGHWAYS T AND D. | |
July 10, 2021 12:08 AM CT | 4 WSW New Melle | MO | SEVERAL UTILITY POLES SNAPPED NEAR HIGHWAY T AND HIGHWAY D. | |
July 10, 2021 12:15 AM CT | 1 ESE Lake Saint Louis | MO | TREE DOWN NEAR LAKE ST. LOUIS BLVD AND LOCKSLEY MANOR DRIVE. | |
July 10, 2021 12:24 AM CT | 2 NNE O'Fallon | MO | TREE AND POWERLINES DOWN IN THE ROAD NEAR ELM STREET AND SONDEREN STREET. | |
July 10, 2021 12:25 AM CT | 3 NW Gray Summit | MO | 6 INCH TREE LIMBS DOWN. | |
July 10, 2021 12:27 AM CT | 2 NE Defiance | MO | TREE DOWN IN THE ROADWAY NEAR THE 1800 BLOCK OF HIGHWAY 94. | |
July 10, 2021 12:30 AM CT | 2 WSW Saint Ann | MO | LARGE TREE DOWN ON DORSETT WEST OF LINDBERGH. | |
July 10, 2021 12:30 AM CT | 2 NW Chesterfield | MO | STEEL HIGHWAY SIGN BLOWN OVER AT I-64 AND BOONES CROSSING. | |
July 10, 2021 12:35 AM CT | 2 NNW Saint Ann | MO | POWER LINES DOWN. | |
July 10, 2021 12:35 AM CT | Saint Ann | MO | LARGE TREES DOWN ALONG BALTIMORE AVENUE AND RONALD DRIVE IN ST. ANN. | |
July 10, 2021 12:36 AM CT | Gray Summit | MO | TWO SEPARATE INCIDENTS OF TREES INTO STRUCTURE OFF HIGHWAY 100 NEAR GRAY SUMMIT. | |
July 10, 2021 12:38 AM CT | 1 E Richmond Heights | MO | DELAYED REPORT: SEVERAL TREE LIMBS DOWN IN RICHMOND HEIGHTS NEAR MCCAUSLAND AND NASHVILLE AVE RANGING FROM 3 TO 5 INCHES IN DIAMETER. TIME ESTIMATED BY RADAR. | |
July 10, 2021 12:40 AM CT | 1 SSE Saint John | MO | LARGE TREE BRANCHES BLOWN DOWN... 2-4 INCHES IN DIAMETER. | |
July 10, 2021 12:44 AM CT | 1 W Greendale | MO | NUMEROUS LARGE TREE LIMBS BLOWN DOWN AROUND THE INTERSECTION OF FLORA AVENUE AND MIDLAND BLVD. | |
July 10, 2021 12:50 AM CT | 1 N Parkdale | MO | LARGE TREES DOWN NORTHWEST OF PARKDALE. | |
July 10, 2021 12:52 AM CT | 2 E Saint Louis | MO | THE STEEPLE ON THE CENTENARY UNITED METHODIST CHURCH PARTIALLY COLLAPSED DUE TO DAMAGING THUNDERSTORM WINDS NEAR THE INTERSECTION OF PINE STREET AND N. 17TH STREET. | |
July 10, 2021 12:54 AM CT | 2 E Saint Louis | MO | DELAYED REPORT: LARGE... HEALTHY TREE BLOWN OVER IN THE PARK AREA NEAR 14TH AND PINE STREET IN DOWNTOWN. PHOTO AND REPORT SUBMITTED VIA SOCIAL MEDIA. TIME ESTIMATED BY RADAR. | |
July 10, 2021 1:42 AM CT | Saint Libory | IL | LARGE BRANCH ROUGHLY 1 FOOT IN DIAMETER SNAPPED OFF OF TREE. TIME ESTIMATED FROM RADAR. | |
July 9, 2021 9:27 PM CT | 60 mph | 2 E Maryland Heights | MO | HAM OPERATOR RELAYED A REPORT OF 60 MPH WIND (ESTIMATED) NEAR DORSETT AND 270. |
July 9, 2021 11:45 PM CT | 60 mph | Warrenton | MO | STORM SPOTTER REPORTS 60 MPH WINDS AND POWER FLASHES. |
July 10, 2021 12:03 AM CT | 71 mph | 3 SW Wentzville | MO | MEASURED GUST FROM A STORM SPOTTER. |
July 10, 2021 12:16 AM CT | 60 mph | 2 NNE O'Fallon | MO | SPOTTER MEASURED 60 MPH WITH INSTRUMENTATION INSTALLED TO PRIVATE RESIDENCE. |
July 10, 2021 12:20 AM CT | 64 mph | 3 NNE Orchard Farms | MO | ST CHARLES COUNTY SMARTT FIELD. |
July 10, 2021 12:42 AM CT | 70 mph | 2 NNW Woodson Terrace | MO | ST. LOUIS LAMBERT INTERNATIONAL AIRPORT. |
July 10, 2021 12:51 AM CT | 60 mph | 3 NNE Saint Louis | MO | No National Weather Service description provided. |
July 10, 2021 12:56 AM CT | 60 mph | 1 SW Granite City | IL | 50-60 MPH ESTIMATED FROM A TRAINED SPOTTER. |
July 10, 2021 1:02 AM CT | 66 mph | 1 SE Sauget | IL | 66 MPH WIND GUST MEASURED AT CAHOKIA AIRPORT (KCPS). |
July 10, 2021 1:29 AM CT | 71 mph | Scott Afb | IL | MEASURED GUST AT SCOTT AIR FORCE BASE. |
July 10, 2021 1:30 AM CT | 60 mph | 1 NE Old Mines | MO | LARGE TREE BRANCHES BLOWN DOWN. |
| 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 July 9, 2021 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 July 9, 2021 event. These related maps cover storm dates from May 16, 2021 through Jun 28, 2021, with mapped hail estimates ranging from 0.75" to 2.75". In this set, the strongest related map reached 2.75", and the most recent map shown is from Jun 28, 2021.
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 July 9, 2021 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 July 9, 2021 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 July 9, 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 July 9, 2021 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 July 9, 2021 Saint Louis, MO hail event.