Right now
The most recent data we hold from NOAA arrived 9 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 3 July 2026 at 23:15 UTC. It is kept here as a record.
It is the 4th strongest of the 94 detections recorded within 20 km of this point since 15 April 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 3 at 6:01PM EDT until July 3 at 7:15PM EDT by NWS Detroit/Pontiac MI
Urban PEI: 655,432 within a heuristic 50 km radius; not unique people.
Nearby, since 15 April 2026
- July 3, 2026 · score 48 · 3.1 km
- September 3, 2026 · score 76 · 11.4 km
- September 4, 2026 · score 46 · 18.5 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 48 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) | 48 / 100 |
| Legacy data-support index | 0.87/1 |
| Coordinates | 42.4238, -83.9530 |
| Nearest City | Ann Arbor (24 km) |
| Urban exposure index (PEI) | 655.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T22:01:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.86767a674e20286a3f038e8b5b8a7c2e |
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: 2026-07-03T22:01:00.000Z.
First archived: 2026-07-03T22:06:07.085Z. 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 | Monroe, MI; Wayne, MI; Livingston, MI; Shiawassee, MI; Clinton, MI; Ingham, MI and 1 more areas |
| Headline | Severe Thunderstorm Warning issued July 3 at 6:01PM EDT until July 3 at 7:15PM EDT by NWS Detroit/Pontiac MI |
| Expires | 2026-07-03T19:15:00-04:00 |
| SenderName | NWS Detroit/Pontiac MI |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.86767a674e20286a3f038e8b5b8a7c2ee63f3ec4.001.1","noaa_urn:oid:2.49.0.1.840.0.355281db69e7b9f9e0cc23133f290eedb72243d7.001.1","noaa_urn:oid:2.49.0.1.840.0.7fb7f3a58668630938c50ed5e3f2f63b97a3fc7d.001.1","noaa_urn:oid:2.49.0.1.840.0.93f8b781e18c527be09864a9e54cfb762677b8a7.001.1"] |
| Iem TypeSummary | D |
| Iem City | 1 NE Moscow |
| Iem County | Hillsdale |
| Iem State | MI |
| Iem Wfo | IWX |
| Iem Remark | Large tree uprooted onto Bibbins Road northeast of Moscow. |
| MergedSources | [{"id":"iem_G_42.050_-84.510_1783113600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783113600000,"latitude":42.05,"longitude":-84.51},{"id":"iem_D_42.060_-84.500_1783113600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783113600000,"latitude":42.06,"longitude":-84.5}] |
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.
Review the area, threshold and delivery channel in your account.
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