Right now
The most recent data we hold from NOAA arrived 72 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 28 June 2026 at 03:30 UTC. It is kept here as a record.
It is the 5th strongest of the 17 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 27 at 9:35PM CDT until June 27 at 10:30PM CDT by NWS Bismarck ND
Nearby, since 15 March 2026
- July 5, 2026 · score 34 · 12.1 km
How we know
6 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 | 0.69/1 |
| Coordinates | 47.3649, -102.9897 |
| Nearest City | Dickinson (56 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-28T02:35:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.15f10ab6bfc7e32ff48532c08a781179 |
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: 2026-06-28T02:35:00.000Z.
First archived: 2026-06-28T02:36:49.454Z. 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 | McLean, ND; Mercer, ND; Morton, ND; Mountrail, ND; Oliver, ND; Ward, ND; Adams, ND; Grant, ND; Hettinger, ND; Morton, ND; Sioux, ND; Stark, ND; Divide, ND; McKenzie, ND; Williams, ND and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 27 at 9:35PM CDT until June 27 at 10:30PM CDT by NWS Bismarck ND |
| Expires | 2026-06-27T22:30:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.15f10ab6bfc7e32ff48532c08a7811798b29a110.001.1","noaa_urn:oid:2.49.0.1.840.0.1aaa1bef24b9cf563e774116bfc689da540612c9.001.1","noaa_urn:oid:2.49.0.1.840.0.2cb03b5591efb2a695da5de736dd9c2d01b29f91.001.1","noaa_urn:oid:2.49.0.1.840.0.5a1503a897eb678956b92ae4cd2dcc56f55895a1.001.1","noaa_urn:oid:2.49.0.1.840.0.0bfcd870c16aaf85fa810dbfe0c5c2357eabc3cb.002.1","noaa_urn:oid:2.49.0.1.840.0.020f83425c0b3d9a30496330ce7badaa3031e6bb.001.1","noaa_urn:oid:2.49.0.1.840.0.727fa26dce8da79beed38d8db1a71b3b35305871.001.1","noaa_urn:oid:2.49.0.1.840.0.7cab7a40c4299e6e2fe9962ab5328a7fb8d59496.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 80 |
| Iem Unit | MPH |
| Iem City | 4 SW Manning |
| Iem County | Dunn |
| Iem State | ND |
| Iem Wfo | BIS |
| Iem Remark | 80 MPH gust at 10M recorded at Manning 4SW NDAWN. |
| MergedSources | [{"id":"iem_G_47.210_-103.790_1782607920000","source":"iem","severity":"low","severityValue":25,"timestamp":1782607920000,"latitude":47.21,"longitude":-103.79},{"id":"iem_G_47.210_-103.790_1782607500000","source":"iem","severity":"low","severityValue":25,"timestamp":1782607500000,"latitude":47.21,"longitude":-103.79},{"id":"iem_T_46.980_-103.260_1782606480000","source":"iem","severity":"low","severityValue":25,"timestamp":1782606480000,"latitude":46.98,"longitude":-103.26},{"id":"iem_G_47.070_-103.790_1782607380000","source":"iem","severity":"low","severityValue":25,"timestamp":1782607380000,"latitude":47.07,"longitude":-103.79},{"id":"iem_G_47.190_-102.830_1782610200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782610200000,"latitude":47.19,"longitude":-102.83}] |
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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