Hail in Heron Lake Jun 27, 2026
Hit 37 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0.5" aloft.
1"
≈ quarter · the largest NEXRAD radar signature387
0
none filedThe 4th most severe storm Heron Lake 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
- 25 /100
- Homes exposed
- 52 /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 Heron Lake saw the hail — from two instruments
The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.
Where NEXRAD flagged hail as the storm passed — point signatures from the radar, which indicate hail overhead rather than confirm what landed.
The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.
Where Jun 27, 2026 sits in Heron Lake's hail record
This was Heron Lake's 4th recorded hail day, arriving 4 days after the Jun 23, 2026 storm. By severity it ranks 4th of the 7 storms we have logged here. Radar put the day's largest stone over Heron Lake at 1" — the largest NEXRAD radar signature.
The Jun 27, 2026 convective day was bigger than Heron Lake: the same system put hail over 587 other tracked cities, 30 of them in Minnesota. Nearest: Lakefield (10 miles southeast, up to 1"); Fulda (10 miles northwest, up to 1"); Round Lake (14 miles south, up to 1").
These maps are stills from Heron Lake's Jun 27, 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.
For this storm over Heron Lake, the NWS report log is empty — a common outcome, since ground reports only happen when someone witnesses the hail and takes the time to call it in. The detection record for the date lives in the radar maps above.
What 1" hail means for Heron Lake roofs
Quarter-size and larger hail is where asphalt shingle damage starts in earnest: bruised mats and granule loss that homeowners can't see from the ground. Most people inside the footprint won't know their roof was hit until someone inspects it.
$4.6M
Potential roof exposure — 387 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Heron Lake on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Heron Lake storm history — this Jun 27, 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
7 recorded storm days in Heron Lake, MN
Other storms in Heron Lake
Jul 2, 2026
1"
Jun 30, 2026
1"
Jun 29, 2026
1"
Jun 23, 2026
0.5"
May 17, 2026
2"
Apr 13, 2026
1.75"