Right now
The most recent data we hold from NOAA arrived 12 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 29 June 2026 at 13:45 UTC. It is kept here as a record.
No stronger detection stands among the 42 recorded within 20 km of this point since 15 March 2026 — 10 others scored the same. The last comparable one was on 28 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued June 29 at 5:41AM CDT until June 29 at 8:45AM CDT by NWS Aberdeen SD
Nearby, since 15 March 2026
- September 8, 2026 · score 16 · 11.8 km
- September 7, 2026 · score 16 · 11.8 km
How we know
11 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 44.3662, -100.3462 |
| Nearest City | Aberdeen (190 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-29T10:41:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.c2f6a9b440aab264957712182e7eedaaa69dba6d.001.1 |
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: 2026-06-29T10:41:00.000Z.
First archived: 2026-06-29T13:43:27.810Z. 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 | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Hughes, SD; Stanley, SD |
| Headline | Flood Warning issued June 29 at 5:41AM CDT until June 29 at 8:45AM CDT by NWS Aberdeen SD |
| Expires | 2026-06-29T08:45:00-05:00 |
| SenderName | NWS Aberdeen SD |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 112 |
| Iem Unit | MPH |
| Iem City | 7 NNW Joe Creek Rec Are |
| Iem County | Hughes |
| Iem State | SD |
| Iem Wfo | ABR |
| Iem Remark | 111.8 mph peak wind gust on Ambient Wx Station. |
| MergedSources | [{"id":"iem_G_43.750_-100.300_1782728400000","source":"iem","severity":"low","severityValue":25,"timestamp":1782728400000,"latitude":43.75,"longitude":-100.3},{"id":"iem_G_44.050_-100.330_1782727980000","source":"iem","severity":"low","severityValue":25,"timestamp":1782727980000,"latitude":44.05,"longitude":-100.33},{"id":"iem_H_44.030_-100.680_1782726180000","source":"iem","severity":"low","severityValue":25,"timestamp":1782726180000,"latitude":44.03,"longitude":-100.68},{"id":"iem_G_44.280_-99.910_1782730140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782730140000,"latitude":44.28,"longitude":-99.91},{"id":"iem_G_44.530_-99.600_1782732000000","source":"iem","severity":"low","severityValue":25,"timestamp":1782732000000,"latitude":44.53,"longitude":-99.6},{"id":"iem_H_43.880_-100.950_1782723600000","source":"iem","severity":"low","severityValue":25,"timestamp":1782723600000,"latitude":43.88,"longitude":-100.95},{"id":"iem_E_44.370_-100.380_1782732420000","source":"iem","severity":"low","severityValue":25,"timestamp":1782732420000,"latitude":44.37,"longitude":-100.38},{"id":"iem_G_44.290_-100.010_1782730500000","source":"iem","severity":"low","severityValue":25,"timestamp":1782730500000,"latitude":44.29,"longitude":-100.01},{"id":"iem_G_44.530_-99.720_1782731940000","source":"iem","severity":"low","severityValue":25,"timestamp":1782731940000,"latitude":44.53,"longitude":-99.72},{"id":"iem_G_44.240_-99.850_1782730080000","source":"iem","severity":"low","severityValue":25,"timestamp":1782730080000,"latitude":44.24,"longitude":-99.85}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
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