Right now
The most recent data we hold from NOAA arrived 30 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 10 June 2026 at 04:15 UTC. It is kept here as a record.
It is the 13th strongest of the 23 detections recorded within 20 km of this point since 8 April 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 9 at 10:13PM CDT until June 9 at 11:15PM CDT by NWS Grand Forks ND
Nearby, since 8 April 2026
- August 9, 2026 · score 34 · 25.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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) | 16 / 100 |
| Legacy data-support index | 0.61/1 |
| Coordinates | 45.2564, -99.0777 |
| Nearest City | Aberdeen (51 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-10T03:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2fed7212214ef81f5c1be35dfe21b85f |
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: 2026-06-10T03:13:00.000Z.
First archived: 2026-06-10T03:14:55.389Z. 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 | Benson, ND; Cavalier, ND; Ramsey, ND; Towner, ND; Foster, ND; Wells, ND; Foster, ND; Stutsman, ND; Wells, ND and 8 more areas |
| Headline | Severe Thunderstorm Warning issued June 9 at 10:13PM CDT until June 9 at 11:15PM CDT by NWS Grand Forks ND |
| Expires | 2026-06-09T23:15:00-05:00 |
| SenderName | NWS Grand Forks ND |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2fed7212214ef81f5c1be35dfe21b85f79cde398.001.1","noaa_urn:oid:2.49.0.1.840.0.65d185d246f9bb8d680370c42b6611c581bcc0a0.001.1","noaa_urn:oid:2.49.0.1.840.0.3e10180dc52a7b8be9673d36a05dcbb4ded5345f.001.1","noaa_urn:oid:2.49.0.1.840.0.0d2c48fcb71e207c68c861c2be7ca7d706ba047b.001.1","noaa_urn:oid:2.49.0.1.840.0.fb0589f8648a7020655b62b0f50920ff4d79333b.001.1","noaa_urn:oid:2.49.0.1.840.0.f0b38c3d7fe899026de22a8c2f84cf1c45c22a15.001.1","noaa_urn:oid:2.49.0.1.840.0.6f354ba44baebb570f6a6fc59fcde9d68a755e6a.002.1","noaa_urn:oid:2.49.0.1.840.0.3488c4fb9775fb8ce497e1f92d492896c2ab5a59.002.1","noaa_urn:oid:2.49.0.1.840.0.0f6ae173cab6ce014e1c9fa76030d6adf13707b2.001.1","noaa_urn:oid:2.49.0.1.840.0.745fa1ae3502a07f3614d50439fcba44f5977dbb.001.1","noaa_urn:oid:2.49.0.1.840.0.b0663a6add13d040ef2846b959954551277121a3.001.1"] |
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.
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