Hail in Armstrong Jun 30, 2026
Hit 34 days agoBoth radar surfaces caught this storm: NEXRAD logged 0 hail signatures up to 1", and the radar-estimated size reached 0" aloft.
1"
≈ quarter · the largest NEXRAD radar signature0
0
none filedThe 9th most severe storm Armstrong 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
- 0 /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 Armstrong 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.
The point detections NEXRAD recorded overhead. Each signature marks where the radar saw hail aloft — it is a detection, not a stone measured on the ground.
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.
Where Jun 30, 2026 sits in Armstrong's hail record
This was Armstrong's 10th recorded hail day, arriving 1 day after the Jun 29, 2026 storm. By severity it ranks 9th of the 11 storms we have logged here. Radar put the day's largest stone over Armstrong at 1" — the largest NEXRAD radar signature.
The Jun 30, 2026 convective day was bigger than Armstrong: the same system put hail over 720 other tracked cities, 85 of them in Iowa. Nearest: Dolliver (10 miles west, up to 1"); Fairmont (11 miles north, up to 1"); Ledyard (15 miles east, up to 1.75").
These maps are stills from Armstrong's Jun 30, 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 Armstrong, 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 Armstrong 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.
Track hail over Armstrong on the live map
Radar updates in real time, spotter reports appear on the map as they're filed, and the full Armstrong storm history — this Jun 30, 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
11 recorded storm days in Armstrong, IA
Other storms in Armstrong
Jul 4, 2026
1"
Jun 29, 2026
1"
Jun 1, 2026
1.25"
May 26, 2026
1"
May 25, 2026
1"
May 18, 2026
1"
May 17, 2026
May 15, 2026
2"
May 14, 2026
0.75"
Apr 13, 2026
2.25"