Storm report · Sully

Hail in Onida Jul 18, 2026

Hit 16 days ago

The radar-estimated size surface caught this storm, reaching 0.5" aloft. NEXRAD logged no point detections over Onida this day.

Largest hailstone

0.5"

≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint

25

Ground reports

0

none filed
Severity

The 5th most severe storm Onida has seen in the last 12 months

Storm severity score

Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.

1.5 /10
Hail size
13 /100

Largest hailstone — the top predictor of roof damage.

Homes exposed
28 /100

How many homes sit inside the storm's footprint.

Ground truth
0 /100

Independent storm reports filed with the NWS.

Two ways to read the storm

How Onida saw the hail — from two instruments

The maps here read the same storm from two angles — point detections from NEXRAD, and modeled hail size aloft. Where the two disagree is informative: it marks where estimated size outran the signatures, or trailed them.

Radar-estimated hail size
Radar-estimated hail-size map of the storm over Onida, SD on Jul 18, 2026

The modeled maximum hail size across the swath, derived from radar aloft — the largest stone the storm could have supported, which is not necessarily what reached the ground.

Max size 0.5"

Only the radar-estimated size surface resolved for Jul 18, 2026 — this storm produced no NEXRAD point detections over Onida, so there is one map to show, not two.

The storm in context

Where Jul 18, 2026 sits in Onida's hail record

This was Onida's 5th recorded hail day, arriving 11 days after the Jul 7, 2026 storm. By severity it ranks 5th of the 5 storms we have logged here. Radar put the day's largest stone over Onida at 0.5" — radar-estimated size aloft.

The Jul 18, 2026 convective day was bigger than Onida: the same system put hail over 377 other tracked cities, 2 of them in South Dakota. Nearest: Blunt (13 miles southeast, up to 0.5"); Glen Ullin (164 miles northwest, up to 0.5"); Lead (181 miles west, up to 0.75").

These maps are stills from Onida's Jul 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.

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 Onida. 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 0.5" hail means for Onida 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.

What this storm is worth to a roofer

$300K

Potential roof exposure — 25 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
Claims from this storm can typically be filed until around July 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.

Track hail over Onida on the live map

Radar updates in real time, spotter reports appear on the map as they're filed, and the full Onida storm history — this Jul 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

Onida hail history

5 recorded storm days in Onida, SD

← All hail in Onida

Other storms in Onida

A storm day here is a convective day — it runs from noon to noon UTC, so late-night hail is grouped with the afternoon storm that spawned it rather than split across two calendar dates. Ground reports are public-domain observations from the NOAA Storm Prediction Center. Radar surfaces are detections and estimates, not confirmed damage. Last updated Aug 3, 2026.