Hail in Unionville May 18, 2026
The radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Unionville this day.
0.5"
≈ pea to penny · radar-estimated size aloft6
0
none filedThe 10th most severe storm Unionville 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
- 17 /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 Unionville saw the hail — from two instruments
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 May 18, 2026 — this storm produced no NEXRAD point detections over Unionville, so there is one map to show, not two.
Where May 18, 2026 sits in Unionville's hail record
This was Unionville's 5th recorded hail day, arriving 2 days after the May 16, 2026 storm. By severity it ranks 10th of the 10 storms we have logged here. Radar put the day's largest stone over Unionville at 0.5" — radar-estimated size aloft.
The May 18, 2026 convective day was bigger than Unionville: the same system put hail over 726 other tracked cities, 59 of them in Missouri. Nearest: Milan (21 miles southwest, up to 0.5"); Green City (23 miles southwest, up to 0.5"); Knox City (50 miles southeast, up to 0.5").
These maps are stills from Unionville's May 18, 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.
Nobody on the ground filed a report over Unionville for this date, which says more about who was watching than about the storm: spotter reports only exist where there is an observer. The radar surfaces above carry the evidence for this one.
What 0.5" hail means for Unionville 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.
$72K
Potential roof exposure — 6 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.Track hail over Unionville on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Unionville storm history — this May 18, 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
10 recorded storm days in Unionville, MO
Other storms in Unionville
Jul 20, 2026
1.25"
Jun 17, 2026
0.5"
Jun 11, 2026
1.5"
Jun 10, 2026
1.25"
Jun 5, 2026
1"
May 16, 2026
1.25"
Apr 17, 2026
1.75"
Apr 15, 2026
0.75"
Apr 2, 2026
0.5"