The radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Columbus Junction this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
0.5"
≈ pea to penny · radar-estimated size aloft185
1
1 tornadoOverview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
Largest hailstone — the top predictor of roof damage.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Each storm gets two readings: the radar signatures NEXRAD recorded as the cells passed overhead, and a modeled estimate of hail size in the air. They are independent surfaces, so a mismatch between them is expected — and worth reading.
Radar-estimated hail size over the swath. The model reports the biggest stone the storm could sustain in the air; what actually fell may have been smaller.
Only the radar-estimated size surface resolved for Jun 11, 2026 — this storm produced no NEXRAD point detections over Columbus Junction, so there is one map to show, not two.
This was Columbus Junction's 7th recorded hail day, arriving 27 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 Columbus Junction at 0.5" — radar-estimated size aloft.
The Jun 11, 2026 convective day was bigger than Columbus Junction: the same system put hail over 648 other tracked cities, 147 of them in Iowa. Nearest: Wapello (7 miles south, up to 0.75"); Conesville (7 miles north, up to 0.5"); Winfield (15 miles south, up to 0.75").
These maps are stills from Columbus Junction's Jun 11, 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.
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.
“Two videos of a very narrow needle-like tornado north of Ainsworth in a field. The mesocyclone appeared to be very small as well. With no known damage... this is rated (DVN)”
— NOAA / SPC storm report
Reports came from Haskins — beyond Columbus Junction itself.
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.
$2.2M
Potential roof exposure — 185 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Radar updates in real time, spotter reports appear on the map as they're filed, and the full Columbus Junction storm history — this Jun 11, 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 Columbus Junction, IA
Jul 3, 2026
1"
May 15, 2026
1"
Apr 15, 2026
0.75"
Apr 14, 2026
0.75"
Apr 2, 2026
1"
Mar 31, 2026
2"
Mar 10, 2026
2"