Wind gust 70 mph
2 NNE Hosmer McPherson County
“Weatherlink station 2.6 miles north northeast of Hosmer. (ABR)”
— NOAA / SPC storm report
/ Storm field report · McPherson
Hail in Eureka · Jul 25, 2026
NEXRAD logged 0 hail signatures up to 0"; the estimated-size surface reached 0.5" aloft. Open it on the live map to see the swath over the streets.
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Peak hail signal 0.5" ≈ pea to penny · radar-estimated size aloft
Homes in the hail footprint 0
Ground reports 2 2 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jul 25, 2026 · noon–noon UTC
Severity
The 16th most severe storm Eureka has seen in the last 12 months
Composite score · 1.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
1.3 /10
- Peak hail signal
- 13 /100
- Homes exposed
- 0 /100
- Ground truth
- 33 /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
Jul 25, 2026 · Eureka, SD
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.
NEXRAD radar signatures Surface resolved
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.
Max size
0"
Detections
0
Radar-estimated hail size Surface resolved
Estimated size field Maximum hail size as estimated from radar aloft. Treat it as the storm's ceiling — the largest supportable stone — rather than a ground measurement.
Max size
0.5"
The storm in context
Where Jul 25, 2026 sits in Eureka's hail record.
This was Eureka's 9th recorded hail day, arriving 6 days after the Jul 19, 2026 storm. By severity it ranks 16th of the 16 storms we have logged here. Radar put the day's largest stone over Eureka at 0.5" — radar-estimated size aloft.
The Jul 25, 2026 convective day was bigger than Eureka: the same system put hail over 303 other tracked cities, 102 of them in South Dakota. Nearest: Hosmer (14 miles southeast, up to 0.5"); Java (26 miles south, up to 1.75"); Bowdle (33 miles south, up to 1").
These maps are stills. In the app this date is one of 16 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
2 reports filed with the NWS
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.
Wind reports
2 reports Wind gust 64 mph
3 NNE Hosmer McPherson County
“(ABR)”
— NOAA / SPC storm report
Storm forensics
How the storm moved
Timing and place names from NOAA ground reports
Read from the arrival times and locations of the NOAA ground reports, not a radar-measured storm track.
Hail was reported over 14 minutes, from to .
Reports came from Hosmer — beyond Eureka itself.
Below the severe threshold
What 0.5" hail means for Eureka 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
Eureka hail history
Other storms in Eureka.
16 recorded storm days in Eureka, SD
Map unavailable
NEXRAD surface Storm date Eureka / SD
Sep 14, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Sep 6, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Sep 4, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Aug 29, 2026
1.75" Estimated 1.75"
1 ground report Open report →
Estimated-size surface Storm date Eureka / SD
Aug 24, 2026
0.75" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Aug 12, 2026
1.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Aug 8, 2026
2" Estimated 2"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Jul 19, 2026
2.75" Estimated 2.75"
1 ground report Open report →
Estimated-size surface Storm date Eureka / SD
Jul 7, 2026
2.5" Signatures 2.5" Estimated 1.5"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Jul 4, 2026
1.75" Signatures 1.75" Estimated 1"
1 ground report Open report →
Estimated-size surface Storm date Eureka / SD
Jul 2, 2026
1.5" Signatures 1.5" Estimated 0.75"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Jun 9, 2026
0.5" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Jun 3, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
Estimated-size surface Storm date Eureka / SD
Jun 2, 2026
1.25" Signatures 1.25" Estimated 0.75"
1 ground report Open report →
Estimated-size surface Storm date Eureka / SD
May 31, 2026
1.75" Signatures 1.75" Estimated 1"
No ground reports filed Open report →
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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 tells you where to look. Only an inspection confirms damage at an address. Last updated Sep 15, 2026.