This alert expired on 12 March 2026 at 20:30 UTC. It is kept here as a record.
It is the 24th strongest of the 33 detections recorded within 20 km of this point since 12 March 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 12 at 3:18PM CDT until March 12 at 3:30PM CDT by NWS Bismarck ND
An estimated 96,474 people live within 50 km of this point.
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 83 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 83% |
| Coordinates | 46.9089, -100.3600 |
| Nearest City | Bismarck (34 km) |
| Population Exposed | 96.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-12T20:18:00.000Z |
| Source | https://api.weather.gov/alerts/urn-oid-2_49_0_1_840_0_3c075826aa660773f91f8b6f20c864085c2c4618_002_1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Burleigh, ND |
| Headline | Severe Thunderstorm Warning issued March 12 at 3:18PM CDT until March 12 at 3:30PM CDT by NWS Bismarck ND |
| Expires | 2026-03-12T15:30:00-05:00 |
| SenderName | NWS Bismarck ND |
| HasExactCoords | true |
| Iem TypeSummary | N |
| Iem Magnitude | 61 |
| Iem Unit | MPH |
| Iem City | 5 SSE Center |
| Iem County | Oliver |
| Iem State | ND |
| Iem Wfo | BIS |
| Iem Remark | Center NDAWN gusted to 61 mph. |
| MergedSources | [{"id":"iem_N_47.050_-101.280_1773343980000","source":"iem","severity":"low","severityValue":25,"timestamp":1773343980000,"latitude":47.05,"longitude":-101.28}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.