Hail in Loa · Jul 21, 2026
The estimated-size surface reached 0.5" aloft; NEXRAD logged no point detections over Loa that day. Open it on the live map to see the swath over the streets.
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Convective day · Jul 21, 2026 · noon–noon UTC
Severity
Loa's only recorded storm in the last 12 months
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
- Peak hail signal
- 13 /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 Loa saw the hail — from two instruments
Two instruments, one storm: NEXRAD logs the point signatures it detected overhead, while the estimated-size surface models how large the hail aloft could have grown. Agreement between them is not guaranteed — the gaps are where the model ran ahead of, or behind, the detections.
Radar-estimated maximum hail size across the swath, modeled from radar aloft. It reflects the biggest stone the storm could support, which may differ from what actually fell.
Only the radar-estimated size surface resolved for Jul 21, 2026 — this storm produced no NEXRAD point detections over Loa, so there is one map to show, not two.
The storm in context
Where Jul 21, 2026 sits in Loa's hail record.
This was Loa's 1st recorded hail day — the first hail day in our records for the city. By severity it ranks 1st of the 1 storms we have logged here. Radar put the day's largest stone over Loa at 0.5" — radar-estimated size aloft.
The Jul 21, 2026 convective day was bigger than Loa: the same system put hail over 703 other tracked cities, 16 of them in Utah. Nearest: Sigurd (30 miles north, up to 1"); Fillmore (47 miles northwest, up to 0.75"); Panguitch (62 miles southwest, up to 0.5").
These maps are stills. In the app this date is one of 1 Loa storm date 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.
No ground reports were filed with the National Weather Service for this storm over Loa. That is common: a report depends on someone being there to see it and take the time to call it in. The radar surfaces above are the record here — the storm was detected from above even though no one on the ground logged it.
Below the severe threshold
What 0.5" hail means for Loa 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
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Set your territory and alerts today. When hail hits, use Overview to choose your streets and get moving.
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