Hail in Eureka · Aug 8, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 2" aloft. At 2" — tennis ball — this is a severe hail signal associated with roof damage. Open it on the live map to see the swath over the streets.
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Convective day · Aug 8, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Eureka 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
- 50 /100
- Homes exposed
- 65 /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 Eureka 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.
Radar signature field 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.
Estimated size field 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.
The storm in context
Where Aug 8, 2026 sits in Eureka's hail record.
This was Eureka's 10th recorded hail day, arriving 14 days after the Jul 25, 2026 storm. By severity it ranks 3rd of the 15 storms we have logged here. Radar put the day's largest stone over Eureka at 2" — radar-estimated size aloft.
The Aug 8, 2026 convective day was bigger than Eureka: the same system put hail over 500 other tracked cities, 19 of them in South Dakota. Nearest: Hosmer (14 miles southeast, up to 1.25"); Herreid (20 miles west, up to 2.25"); Mound City (20 miles west, up to 2").
These maps are stills. In the app this date is one of 15 Eureka 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 Eureka. 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.
Severe hail signal
What 2" hail means for Eureka roofs.
Two-inch-plus hail is capable of puncturing shingles, breaking skylights or windows, and heavily denting soft materials. The strongest radar bands warrant prompt inspection, but neither the signal nor the footprint confirms damage at a specific address.
Radar reading · not confirmed damage
Roofing exposure
What this storm is worth to a roofer.
Potential roof exposure
$22M
Potential roof exposure — 1,835 homes × the ~$12,000 industry-average hail roof claim. Exposure, not confirmed damage.
- Illustrative jobs
- 9 jobs
- Illustrative work
- ~$135K
Close just 0.5% of the 1,835 homes in this footprint at the average $15,000 roof job. Illustrative math, not a projection — your results depend on your outreach and how the market responds.
Claim window
August 2028
Claims from this storm can typically be filed until around August 2028 — the window to reach these homeowners while it's still open. Deadlines vary by policy and state.
Names and phones for every home in the footprint: at most $385 on top of the $150 plan.
Eureka hail history
Other storms in Eureka.
Estimated-size surface Sep 6, 2026
1.5"
Estimated-size surface Sep 4, 2026
0.5"
Estimated-size surface Aug 29, 2026
1.75"
Estimated-size surface Aug 24, 2026
0.75"
Estimated-size surface Aug 12, 2026
1.5"
Estimated-size surface Jul 25, 2026
0.5"
Estimated-size surface Jul 19, 2026
2.75"
Estimated-size surface Jul 7, 2026
2.5"
Estimated-size surface Jul 4, 2026
1.75"
Estimated-size surface Jul 2, 2026
1.5"
Estimated-size surface Jun 9, 2026
0.5"
Estimated-size surface Jun 3, 2026
1"
Estimated-size surface Jun 2, 2026
1.25"
Estimated-size surface May 31, 2026
1.75"Take your next area into the field.
See the hail, review your recommendations, and canvass with Overview on iPhone.
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