Right now
The most recent data we hold from NOAA arrived 2 hours 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 19:30 UTC. It is kept here as a record.
No stronger detection stands among the 82 recorded within 20 km of this point since 3 April 2026 — 22 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 29 at 1:46PM CDT until June 29 at 2:30PM CDT by NWS Duluth MN
Urban PEI: 16,204 within a heuristic 50 km radius; not unique people.
Nearby, since 3 April 2026
- July 27, 2026 · score 34 · 11.9 km
- August 4, 2026 · score 28 · 14.8 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
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 | 0.90/1 |
| Coordinates | 47.3878, -92.4123 |
| Nearest City | Hibbing (40 km) |
| Urban exposure index (PEI) | 16.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-29T18:46:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4d283d06bc013eeb1e2c4d797b8b91a9 |
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: 2026-06-29T18:46:00.000Z.
First archived: 2026-06-29T18:52:20.273Z. 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 | Itasca, MN; Koochiching, MN; St. Louis, MN; Cook, MN; Itasca, MN; Koochiching, MN; Lake, MN; St. Louis, MN; Aitkin, MN; Carlton, MN; Pine, MN; St. Louis, MN |
| Headline | Severe Thunderstorm Warning issued June 29 at 1:46PM CDT until June 29 at 2:30PM CDT by NWS Duluth MN |
| Expires | 2026-06-29T14:30:00-05:00 |
| SenderName | NWS Duluth MN |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4d283d06bc013eeb1e2c4d797b8b91a9533b2c57.001.1","noaa_urn:oid:2.49.0.1.840.0.85b0496416b0e0b8e1b978daa4b062f85d48f51b.001.1","noaa_urn:oid:2.49.0.1.840.0.642575e31349f312edc712452d3bc23bc177563a.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 58 |
| Spc Location | 3 S Chisholm |
| Spc County | St. Louis |
| Spc State | MN |
| Spc Comments | MNDOT RWIS station MN092 US 169 Mitchell Bridge Mp 343. (DLH) |
| Iem TypeSummary | R |
| Iem Magnitude | 1.29 |
| Iem Unit | Inch |
| Iem City | 1 N Knife River |
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.
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