The radar-estimated size surface caught this storm, reaching 1" aloft. NEXRAD logged no point detections over Dubuque this day.
A tornado was also reported to the National Weather Service during this storm — see the ground reports below.
1"
≈ quarter · radar-estimated size aloft5,186
2
1 wind · 1 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.
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 Apr 14, 2026 — this storm produced no NEXRAD point detections over Dubuque, so there is one map to show, not two.
This was Dubuque's 2nd recorded hail day, arriving 35 days after the Mar 10, 2026 storm. By severity it ranks 2nd of the 5 storms we have logged here. Radar put the day's largest stone over Dubuque at 1" — radar-estimated size aloft.
The Apr 14, 2026 convective day was bigger than Dubuque: the same system put hail over 476 other tracked cities, 143 of them in Iowa. Nearest: Zwingle (7 miles south, up to 1.25"); La Motte (7 miles south, up to 0.75"); Peosta (8 miles west, up to 1").
These maps are stills from Dubuque's Apr 14, 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.
“An EF1 tornado began just northwest of the Dubuque Regional Airport. Max winds of 100 to 105 mph was observed. The tornado caused damage to trees... snapping and uproot (DVN)”
— NOAA / SPC storm report
“ASOS. (DVN)”
— NOAA / SPC storm report
Reports came from Dubuque Regional Arpt and Dubuque Regional A — beyond Dubuque itself.
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.
$62M
Potential roof exposure — 5,186 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 Dubuque storm history — this Apr 14, 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
5 recorded storm days in Dubuque, IA
Jul 2, 2026
1.25"
Apr 23, 2026
1"
Apr 17, 2026
2.25"
Mar 10, 2026
1.25"