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 2 July 2026 at 22:34 UTC. It is kept here as a record.
No stronger detection stands among the 35 recorded within 20 km of this point since 15 March 2026 — 3 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 2 at 5:24PM CDT until July 2 at 5:30PM CDT by NWS Sioux Falls SD
Nearby, since 15 March 2026
- June 15, 2026 · score 22 · 5.9 km
How we know
8 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 46 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 | Critical |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.68/1 |
| Coordinates | 44.2085, -98.1543 |
| Nearest City | Mitchell (56 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-02T22:24:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.acfb5bfe12a26942d4909501d87bbafa |
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: 2026-07-02T22:24:00.000Z.
First archived: 2026-07-02T22:27:46.209Z. 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 | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Beadle, SD; Sanborn, SD; Beadle, SD; Sanborn, SD |
| Headline | Tornado Warning issued July 2 at 5:24PM CDT until July 2 at 5:30PM CDT by NWS Sioux Falls SD |
| Expires | 2026-07-02T17:34:00-05:00 |
| SenderName | NWS Sioux Falls SD |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.acfb5bfe12a26942d4909501d87bbafa99fa5ac7.001.1","noaa_urn:oid:2.49.0.1.840.0.8c4479b233b1aa4fed8d7b284e8d3501f5cdf8c2.001.1","noaa_urn:oid:2.49.0.1.840.0.9ec889d0c930360fd1ebcf1bfd3c22d266692c70.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 90 |
| Iem Unit | MPH |
| Iem City | 2 NNW Huron |
| Iem County | Beadle |
| Iem State | SD |
| Iem Wfo | FSD |
| Iem Remark | ASOS station KHON Huron Regional Airport. |
| MergedSources | [{"id":"iem_G_44.180_-98.210_1783029240000","source":"iem","severity":"low","severityValue":25,"timestamp":1783029240000,"latitude":44.18,"longitude":-98.21},{"id":"iem_G_43.720_-98.280_1783029000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783029000000,"latitude":43.72,"longitude":-98.28},{"id":"iem_G_44.340_-98.220_1783029720000","source":"iem","severity":"low","severityValue":25,"timestamp":1783029720000,"latitude":44.34,"longitude":-98.22},{"id":"iem_C_44.320_-98.280_1783028700000","source":"iem","severity":"low","severityValue":25,"timestamp":1783028700000,"latitude":44.32,"longitude":-98.28},{"id":"iem_G_43.840_-98.320_1783028640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783028640000,"latitude":43.84,"longitude":-98.32},{"id":"iem_G_44.070_-98.450_1783028160000","source":"iem","severity":"low","severityValue":25,"timestamp":1783028160000,"latitude":44.07,"longitude":-98.45},{"id":"iem_G_44.390_-98.230_1783029360000","source":"iem","severity":"low","severityValue":25,"timestamp":1783029360000,"latitude":44.39,"longitude":-98.23}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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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