Wind gust 83 mph
11 SW Parmelee Todd County
“(UNR)”
— NOAA / SPC storm report
/ Storm field report · Mellette
Hail in Norris · Jun 28, 2026
NEXRAD logged 1 hail signature up to 2.5"; the estimated-size surface reached 2.5" aloft. At 2.5" — baseball — 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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Peak hail signal 2.5" ≈ baseball · radar-estimated size aloft
Homes in the hail footprint 0
Ground reports 2 2 wind
Radar surfaces 2 NEXRAD + estimated size
Convective day · Jun 28, 2026 · noon–noon UTC
Severity
The 3rd most severe storm Norris has seen in the last 12 months
Composite score · 4.3 / 10
Storm severity score
Overview's storm severity score weighs hailstone size, homes in the footprint, and ground-truth reports.
4.3 /10
- Peak hail signal
- 63 /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 Norris saw the hail — from two instruments
Jun 28, 2026 · Norris, SD
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.
NEXRAD radar signatures Surface resolved
Radar signature field NEXRAD's hail signatures for this storm: the spots the radar detected from above. A detection overhead is not the same thing as a confirmed stone below.
Max size
2.5"
Detections
1
Radar-estimated hail size Surface resolved
Estimated size field 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.
Max size
2.5"
The storm in context
Where Jun 28, 2026 sits in Norris's hail record.
This was Norris's 2nd recorded hail day, arriving 67 days after the Apr 22, 2026 storm. By severity it ranks 3rd of the 5 storms we have logged here. Radar put the day's largest stone over Norris at 2.5" — radar-estimated size aloft.
The Jun 28, 2026 convective day was bigger than Norris: the same system put hail over 348 other tracked cities, 42 of them in South Dakota. Nearest: Long Valley (11 miles west, up to 2.5"); Parmelee (15 miles south, up to 2.5"); White River (21 miles east, up to 4").
These maps are stills. In the app this date is one of 5 Norris 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 77 mph
6 W Parmelee Todd County
“(UNR)”
— 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.
Reports came from Parmelee — beyond Norris itself.
Severe hail signal
What 2.5" hail means for Norris 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
Norris hail history
Other storms in Norris.
5 recorded storm days in Norris, SD
Estimated-size surface Storm date Norris / SD
Aug 27, 2026
1" Estimated 1"
No ground reports filed Open report →
Estimated-size surface Storm date Norris / SD
Jul 30, 2026
2.5" Signatures 2.5" Estimated 1.25"
No ground reports filed Open report →
Estimated-size surface Storm date Norris / SD
Jul 9, 2026
3.25" Signatures 3.25" Estimated 2.25"
No ground reports filed Open report →
Estimated-size surface Storm date Norris / SD
Apr 22, 2026
1" Signatures 1" Estimated 0.5"
No ground reports filed Open report →
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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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 Aug 28, 2026.