Both radar surfaces caught this storm: NEXRAD logged 6 hail signatures up to 2", and the radar-estimated size reached 1.5" aloft. At 2" — tennis ball — this is severe, roof-replacing hail: close to every roof inside the footprint becomes a claim candidate.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
2"
≈ tennis ball · the largest NEXRAD radar signature54
4
1 wind · 3 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.
We map this storm two ways: the NEXRAD radar signatures the storm produced overhead, and the radar-estimated size of the hail in the air. The two surfaces don’t have to match — where they diverge is where estimated size aloft ran ahead of, or behind, what the signatures caught.
NEXRAD radar signatures — the point detections the storm produced overhead. A signature is where the radar saw hail, not a confirmed stone on the ground.
Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
This was Andover's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 4 storms we have logged here. Radar put the day's largest stone over Andover at 2" — the largest NEXRAD radar signature.
The Jun 29, 2026 convective day was bigger than Andover: the same system put hail over 702 other tracked cities, 51 of them in South Dakota. Nearest: Pierpont (7 miles east, up to 2"); Langford (10 miles northeast, up to 1.75"); Groton (15 miles west, up to 2").
These maps are stills from Andover's Jun 29, 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.
“Update to the previous two tornado reports near Andover. Photo and video of the tornado indicated that the tornado near this location. NWS Storm Survey with the Day Cou (ABR)”
— NOAA / SPC storm report
“Picture and video of the tornado shared via Facebook. (ABR)”
— NOAA / SPC storm report
“Tornado observed and quickly became rain wrapped. (ABR)”
— NOAA / SPC storm report
“Mesonet station 45 Andover (SDDOT). (ABR)”
— NOAA / SPC storm report
Two-inch-plus hail punctures shingles, breaks skylights and windows, and dents anything soft. In the core of a footprint like this, close to every roof is a candidate for an insurance claim. Speed decides who writes those jobs.
$648K
Potential roof exposure — 54 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 Andover storm history — this Jun 29, 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
4 recorded storm days in Andover, SD
