The radar-estimated size surface caught this storm, reaching 0.75" aloft. NEXRAD logged no point detections over Mercer this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
0.75"
≈ penny to nickel · radar-estimated size aloft449
4
1 hail · 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.
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.
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.
Only the radar-estimated size surface resolved for Jun 10, 2026 — this storm produced no NEXRAD point detections over Mercer, so there is one map to show, not two.
This was Mercer's 6th recorded hail day, arriving 25 days after the May 16, 2026 storm. By severity it ranks 2nd of the 8 storms we have logged here. Radar put the day's largest stone over Mercer at 0.75" — radar-estimated size aloft.
The Jun 10, 2026 convective day was bigger than Mercer: the same system put hail over 777 other tracked cities, 105 of them in Missouri. Nearest: Powersville (5 miles east, up to 0.75"); Allerton (11 miles north, up to 0.5"); Princeton (13 miles southwest, up to 1.5").
These maps are stills from Mercer's Jun 10, 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.
“A second supercell in Mercer County produced a brief EF-0 tornado near U.S. Highway 65 north of Princeton on 10 June... continuing to the northeast across Finch Avenue (EAX)”
— NOAA / SPC storm report
“A rapidly developing supercell thunderstorm produced a tornado north of Ravanna... MO... on the afternoon of 10 June. The storm caused extensive damage to a garage and (EAX)”
— NOAA / SPC storm report
“Public recorded video of tornado on the ground. Approximate location estimated by radar. (EAX)”
— NOAA / SPC storm report
“Social media report. Time and location estimated. (EAX)”
— NOAA / SPC storm report
Hail was reported over 14 minutes, from to .
Reports came from Princeton — beyond Mercer itself.
Hail this size sits right at the edge of the National Weather Service severe threshold. Newer roofs usually shrug it off, but aging or already-worn shingles can bruise, and soft metals — vents, flashing, gutters — often show the first dents.
$5.4M
Potential roof exposure — 449 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 Mercer storm history — this Jun 10, 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 Mercer, MO
Jul 3, 2026
1"
Jun 11, 2026
1"
May 16, 2026
0.75"
Apr 17, 2026
1.75"
Apr 15, 2026
0.75"
Apr 2, 2026
1.75"
Mar 5, 2026