Hail in Grinnell Jun 16, 2026
The radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Grinnell this day.
0.5"
≈ pea to penny · radar-estimated size aloft29
0
none filedThe 6th most severe storm Grinnell has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Hail size
- 13 /100
- Homes exposed
- 30 /100
- Ground truth
- 0 /100
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
How Grinnell saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Jun 16, 2026 — this storm produced no NEXRAD point detections over Grinnell, so there is one map to show, not two.
Where Jun 16, 2026 sits in Grinnell's hail record
This was Grinnell's 6th recorded hail day, arriving 32 days after the May 15, 2026 storm. By severity it ranks 6th of the 8 storms we have logged here. Radar put the day's largest stone over Grinnell at 0.5" — radar-estimated size aloft.
The Jun 16, 2026 convective day was bigger than Grinnell: the same system put hail over 225 other tracked cities, 58 of them in Iowa. Nearest: Tama (7 miles north, up to 0.5"); Brooklyn (15 miles southeast, up to 0.5"); Sully (17 miles southwest, up to 1").
These maps are stills from Grinnell's Jun 16, 2026 storm. In the Overview app the same surfaces are live — radar updating in real time, radar-estimated hail size as it forms, and NWS spotter reports pinned where they're filed — with a radar replay you can scrub back over any past day.
What people on the ground reported
These are storm reports filed with the National Weather Service and released through the NOAA Storm Prediction Center — public-domain observations from spotters, the public, and NWS surveys. We quote each one exactly as filed.
The National Weather Service logged no spotter reports for this storm over Grinnell. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
What 0.5" hail means for Grinnell roofs
Hail under three-quarters of an inch stays below the National Weather Service severe threshold and rarely breaks shingles outright. But repeated small-hail events accelerate granule loss and shorten roof life — on older roofs, it's still worth a conversation.
$348K
Potential roof exposure — 29 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Grinnell on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Grinnell storm history — this Jun 16, 2026 storm included — sits underneath. When you're ready, draw this storm's footprint and pull highly accurate homeowner contact information for every address inside it.
Highly accurate contact information starting at $0.23 per address — every contact included. Digital leads cost $15–$40. Start with a 7-day free trial — no credit card required. See pricing
8 recorded storm days in Grinnell, IA
Other storms in Grinnell
Jul 20, 2026
0.5"
Jul 3, 2026
1"
May 15, 2026
1"
Apr 17, 2026
2.5"
Apr 15, 2026
0.5"
Apr 14, 2026
0.75"
Mar 30, 2026