Right now
The most recent data we hold from NOAA arrived 7 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 6 July 2026 at 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 20 recorded within 20 km of this point since 17 March 2026 — 11 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 July 5 at 8:34PM MDT until July 5 at 9:00PM MDT by NWS Great Falls MT
Nearby, since 17 March 2026
- July 6, 2026 · score 22 · 2.9 km
- July 6, 2026 · score 22 · 19.1 km
- May 14, 2026 · score 22 · 23.0 km
How we know
5 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 | 0.71/1 |
| Coordinates | 47.3806, -108.6486 |
| Nearest City | Billings (178 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-07-06T02:34:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.d1cfa32aa8cfcbed1806ed86590d54e3 |
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: 2026-07-06T02:34:00.000Z.
First archived: 2026-07-06T02:37:55.273Z. 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 | Fergus, MT; Blaine, MT; Fergus, MT; Garfield, MT; Petroleum, MT; Phillips, MT |
| Headline | Severe Thunderstorm Warning issued July 5 at 8:34PM MDT until July 5 at 9:00PM MDT by NWS Great Falls MT |
| Expires | 2026-07-05T21:00:00-06:00 |
| SenderName | NWS Great Falls MT |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d1cfa32aa8cfcbed1806ed86590d54e3f4794034.001.1","noaa_urn:oid:2.49.0.1.840.0.fd1de56d193a0eb21810c292d96d16ea1433efd9.001.1","noaa_urn:oid:2.49.0.1.840.0.a6ef375068ff8fc7ef0bfdda91bc25fd2cff8ee9.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | MPH |
| Iem City | 5 NNE Forestgrove |
| Iem County | Fergus |
| Iem State | MT |
| Iem Wfo | TFX |
| Iem Remark | AWOS station K1NM November. |
| MergedSources | [{"id":"iem_G_47.110_-109.090_1783303200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783303200000,"latitude":47.11,"longitude":-109.09},{"id":"iem_G_47.560_-109.380_1783303620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783303620000,"latitude":47.56,"longitude":-109.38},{"id":"iem_G_47.060_-109.050_1783303080000","source":"iem","severity":"low","severityValue":25,"timestamp":1783303080000,"latitude":47.06,"longitude":-109.05},{"id":"iem_G_47.060_-109.050_1783302960000","source":"iem","severity":"low","severityValue":25,"timestamp":1783302960000,"latitude":47.06,"longitude":-109.05}] |
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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