Hail on October 9, 2026: where it hit
On October 9, 2026, the archived NWS Local Storm Reports hold 39 hail reports across 2 states; the largest reported size, 1.75 inches, was logged 4 times (Sioux County, Iowa; Sac County, Iowa; Dallas County, Iowa; and more), and Iowa logged the most reports (36). Every number below is the public record: reported sizes from spotters and radar-estimated swaths from NOAA MRMS, labeled as what they are.
Largest reported stones on October 9, 2026
The 5 largest of 39 reports with a measured size. 4 reports share the top size of 1.75 inches. Report times are not kept in the archived file, so none are shown.
| Size | County | State | Place as logged | Lat, Lon |
|---|---|---|---|---|
| 1.75″ | Sioux County | Iowa | 2 S Maurice | 42.94, -96.18 |
| 1.75″ | Sac County | Iowa | 4 SSW Wall Lake | 42.23, -95.13 |
| 1.75″ | Dallas County | Iowa | 3 E Redfield | 41.58, -94.14 |
| 1.75″ | Warren County | Iowa | 1 S Cumming | 41.46, -93.76 |
| 1.50″ | Sioux County | Iowa | Ireton | 42.98, -96.32 |
Counties with the most hail reports
Top 10 of 13 counties with at least one report; ties are listed by state, then name.
| County | State | Reports | Largest |
|---|---|---|---|
| Sioux County | Iowa | 8 | 1.75″ |
| Plymouth County | Iowa | 5 | 1.25″ |
| Dallas County | Iowa | 4 | 1.75″ |
| Warren County | Iowa | 4 | 1.75″ |
| Calhoun County | Iowa | 3 | 1.50″ |
| Cherokee County | Iowa | 3 | 1.50″ |
| Guthrie County | Iowa | 3 | 1.50″ |
| Sac County | Iowa | 3 | 1.75″ |
| Union County | South Dakota | 2 | 1.50″ |
| Buena Vista County | Iowa | 1 | 1.00″ |
States with the most hail reports
All 2 states with reports.
- Iowa: 36 reports
- South Dakota: 3 reports
Check any address against this storm on the hail map →
Questions about the October 9, 2026 hail
How big was the hail on October 9, 2026?
The largest reported stone on October 9, 2026 was 1.75 inches, among 39 reports nationwide. Radar (NOAA MRMS MESH) also estimated the swath footprint, an estimate, not a measurement.
Where did it hail on October 9, 2026?
Reports by state: Iowa (36), South Dakota (3). Counties with the most reports: Sioux County, IA (8), Plymouth County, IA (5), Dallas County, IA (4).
Did the October 9, 2026 hail hit my address?
Use the hail map's address search: it lists every dated report within 25 miles of any US address and, for days in the radar archive, tests your exact point against the estimated swath, then prints a sourced report you can keep.
How these figures are built
Reports are NWS Local Storm Reports of hail, pulled from the Iowa Environmental Mesonet archive. This page reads data/hail/recent.json (pulled 2026-10-10). Local Storm Reports are preliminary and unverified: sizes are what spotters, the public and emergency managers reported, and NOAA NCEI's Storm Data, published months later, is the verified record. A report with no size counts toward the total but not toward the size figures. Damaging size means 1 inch or larger, the National Weather Service severe-hail size. State is the state named on the report. County is not carried in the archived file; it is assigned here by placing each report's coordinates (rounded to about 1 km) inside US Census cartographic county boundaries, so a report near a county line can land in the neighbouring county. Radar figures are NOAA MRMS MESH, a radar estimate of maximum hail size, not a measurement.