◆ UNDERWOOD, IA HAIL HISTORY · POTTAWATTAMIE COUNTY
Underwood, IA hail history & hail map
Underwood, Iowa has had 4 hail events in the past 5 years, with hail up to 4.00″ (Softball). Most recent: Apr 18, 2025. 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
4.00″Largest recorded hail · Softball
4.00″Largest ground report (within 3 mi)
1.00″Largest radar-estimated hail
Radar hail swaths (NOAA MRMS MESH) in the past 5 years over Underwood, shaded by hail size; blue dots are ground reports.
Recent hail storm dates in Underwood
| Date | Peak hail | Sources |
|---|---|---|
| Apr 18, 2025 | 4.00″ Softball | Radar 1.00″ · 5 ground reports (max 4.00″) |
| May 8, 2023 | 1.25″ Half Dollar | 1 ground report (max 1.25″) |
| Sep 18, 2022 | 0.75″ Penny | Radar 0.75″ |
| Apr 13, 2022 | 0.75″ Penny | Radar 0.75″ |
More Iowa hail history
Events count days with NOAA MRMS radar hail over Underwood (41.370, -95.690) 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.