Hail in Story City · Apr 3, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface had no signal that day. Open it on the live map to see the swath over the streets.
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Convective day · Apr 3, 2026 · noon–noon UTC
Severity
The 8th most severe storm Story City has seen in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 0 /100
- Homes exposed
- 0 /100
- Ground truth
- 0 /100
Largest radar-indicated size — a signal of damage potential, not confirmation.
How many homes sit inside the storm's footprint.
Independent storm reports filed with the NWS.
Evidence / storm surfaces
How Story City saw the hail — from two instruments
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.
Radar signature field 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.
Only the NEXRAD radar-signature surface resolved for Apr 3, 2026 — the estimated-size swath had no hail signal to model for this storm, so there is one map to show, not two.
The storm in context
Where Apr 3, 2026 sits in Story City's hail record.
This was Story City's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 8th of the 8 storms we have logged here. Radar put the day's largest stone over Story City at 0" — radar-estimated size aloft.
The Apr 3, 2026 convective day was bigger than Story City: the same system put hail over 367 other tracked cities, 36 of them in Iowa. Nearest: Boone (17 miles southwest, up to 0"); Colo (23 miles southeast, up to 0.5"); Maxwell (29 miles southeast, up to 0.5").
These maps are stills. In the app this date is one of 8 Story City storm dates on a live map — both surfaces, the reports, and a replay — and the same map is where you draw the swath. This page rebuilds nightly.
Ground reports
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.
The National Weather Service logged no spotter reports for this storm over Story City. That absence is ordinary — filing a report takes a person on the spot who saw the hail and phoned it in. What stands as the record for this date is the radar above, which caught the storm regardless.
Below the severe threshold
What 0" hail means for Story City roofs.
Radar signals under three-quarters of an inch stay below the National Weather Service severe threshold and generally indicate lower roof risk. Older or already-worn materials can still show effects, but radar alone cannot determine whether a specific roof was damaged.
Radar reading · not confirmed damage
Story City hail history
Other storms in Story City.
Estimated-size surface Sep 14, 2026
0.5"
Estimated-size surface Aug 4, 2026
0.75"
Estimated-size surface Jul 20, 2026
2"
Estimated-size surface Jun 28, 2026
2.5"
Estimated-size surface Jun 16, 2026
0.75"
Estimated-size surface Jun 10, 2026
0.5"
Estimated-size surface Apr 15, 2026
0.75"The next storm won’t wait for you.
Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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Web trial: 7 days free. Card required. $150/month after the trial unless cancelled.