◆ ALPHA, IL HAIL HISTORY · HENRY COUNTY
Alpha, IL hail history & hail map
Alpha, Illinois has had 4 hail events in the past 5 years, with hail up to 0.75″ (Penny). Most recent: Mar 11, 2026. Free hail map, storm dates and NWS/CoCoRaHS reports.
✓ Data compiled by a degreed meteorologist from NOAA & NWS sources
4Hail events in the past 5 years
0.75″Largest recorded hail · Penny
0.75″Largest ground report (within 3 mi)
0.75″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Alpha, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Alpha
| Date | Peak hail | Sources |
|---|---|---|
| Mar 11, 2026 | 0.75″ Penny | Radar 0.75″ |
| Mar 10, 2026 | 0.75″ Penny | 2 ground reports (max 0.75″) |
| Apr 17, 2024 | 0.75″ Penny | Radar 0.75″ |
| Mar 31, 2023 | 0.38″ Small | 1 ground report (max 0.38″) |
More Illinois hail history
All Illinois cities & hail days →
Events count days with NOAA MRMS radar hail over Alpha (41.190, -90.380) or an NWS / CoCoRaHS hail report within 3 miles. Data window: NOAA MRMS radar hail swaths Oct 2021 – Nov 2026; NWS / NCEI Storm Events reports Nov 2024 – Jul 2026; CoCoRaHS volunteer reports Oct 2021 – present. Radar hail sizes are estimates, not ground truth; hail at any single address can differ.