Right now
The most recent data we hold from NOAA arrived 2 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 30 June 2026 at 05:00 UTC. It is kept here as a record.
No stronger detection stands among the 102 recorded within 20 km of this point since 3 April 2026 — 34 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 29 at 10:56PM CDT until June 30 at 12:00AM CDT by NWS Grand Forks ND
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 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 | High |
| Calamity Score (ours) | 28 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 47.7005, -96.0371 |
| Nearest City | Grand Forks (78 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-30T03:56:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.c80a5e2b2e50bd74bb4cb1d00d3a0616 |
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: 2026-06-30T03:56:00.000Z.
First archived: 2026-06-30T03:58:33.851Z. 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 | Kittson, MN; Marshall, MN; Grand Forks, ND; Walsh, ND; Cavalier, ND; Ramsey, ND; Towner, ND; Kittson, MN; Roseau, MN and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 29 at 10:56PM CDT until June 30 at 12:00AM CDT by NWS Grand Forks ND |
| Expires | 2026-06-30T00:00:00-05:00 |
| SenderName | NWS Grand Forks ND |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.c80a5e2b2e50bd74bb4cb1d00d3a0616bad231bc.001.1","noaa_urn:oid:2.49.0.1.840.0.20a8207a318ff3ca1d46ec58d82251eafd876fb0.002.1","noaa_urn:oid:2.49.0.1.840.0.5c400bf12495b49b4c2da9c88135cbf1b96af88c.001.1","noaa_urn:oid:2.49.0.1.840.0.bd6d6c5b3894efd676ae1bb1e36f7e4d38640b8e.002.1","noaa_urn:oid:2.49.0.1.840.0.6a4471606fbb7a94dc7bbd622653e581b92dcaf0.001.1","noaa_urn:oid:2.49.0.1.840.0.93beab205d1df070545c98019d8333f47c7a3bd5.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | Ulen |
| Spc County | Clay |
| Spc State | MN |
| Spc Comments | Trees down (estimated 20 feet in height). (FGF) |
| MergedSources | [{"id":"spc_tornado_47.13_-96.18_3","source":"spc","severity":"high","severityValue":78,"timestamp":1782785820000,"latitude":47.13,"longitude":-96.18},{"id":"spc_wind_47.08_-96.26_89","source":"spc","severity":"medium","severityValue":45,"timestamp":1782785280000,"latitude":47.08,"longitude":-96.26}] |
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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