Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 3 July 2026 at 00:15 UTC. It is kept here as a record.
It is the 4th strongest of the 31 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 2 July 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 2 at 7:06PM CDT until July 2 at 7:15PM CDT by NWS Aberdeen SD
Urban PEI: 23,657 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- July 12, 2026 · score 34 · 14.0 km
- July 11, 2026 · score 34 · 14.0 km
- June 8, 2026 · score 34 · 14.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 34 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 44.3028, -96.9063 |
| Nearest City | Brookings (8 km) |
| Urban exposure index (PEI) | 23.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T00:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c9f53ccb9d6eca28f9a44789bc6c5741 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-03T00:06:00.000Z.
First archived: 2026-07-03T00:09:03.684Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Codington, SD; Deuel, SD; Lac qui Parle, MN; Yellow Medicine, MN; Codington, SD; Deuel, SD; Grant, SD and 3 more areas |
| Headline | Severe Thunderstorm Warning issued July 2 at 7:06PM CDT until July 2 at 7:15PM CDT by NWS Aberdeen SD |
| Expires | 2026-07-02T19:15:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c9f53ccb9d6eca28f9a44789bc6c57413d52cd5e.002.1","noaa_urn:oid:2.49.0.1.840.0.e8027569e172ccb305c194a44f49a5c1c23eaa8d.001.1","noaa_urn:oid:2.49.0.1.840.0.f32938f3203e96ac7587ff58144e5c588961664f.001.1","noaa_urn:oid:2.49.0.1.840.0.d47186aa02e8f94f4d847e8f0e4c12d3db0bf353.001.1","noaa_urn:oid:2.49.0.1.840.0.bb12b5e7f37c0c6083ef7515044105178c780598.001.1","noaa_urn:oid:2.49.0.1.840.0.a4fb886bef8396d705634f1386a231040ee4f781.001.1"] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
Review the area, threshold and delivery channel in your account.
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