Right now
The most recent data we hold from NOAA arrived 13 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
8 other detections within 20 km in the last 24 hours, the nearest 4 km from here.
This alert expired on 16 September 2026 at 01:00 UTC. It is kept here as a record.
It is the 6th strongest of the 49 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 15 at 8:16PM EDT until September 15 at 9:00PM EDT by NWS Northern Indiana
Urban PEI: 293,130 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- September 16, 2026 · score 37 · 13.8 km
- August 9, 2026 · score 43 · 15.2 km
- September 4, 2026 · score 37 · 17.0 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.86/1 |
| Coordinates | 41.1978, -85.2478 |
| Nearest City | Fort Wayne (12 km) |
| Urban exposure index (PEI) | 293.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-16T00:16:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.1e4af631cbdf1dc9707608a131f4259078ddcd4b.001.1 |
Physical priority index · v5. 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: 2026-09-16T00:16:00.000Z.
First archived: 2026-09-16T00:35:36.992Z. 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 | Allen, IN; De Kalb, IN; Noble, IN |
| Headline | Severe Thunderstorm Warning issued September 15 at 8:16PM EDT until September 15 at 9:00PM EDT by NWS Northern Indiana |
| Expires | 2026-09-15T21:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 2 ESE Knapp Lake |
| Iem County | Noble |
| Iem State | IN |
| Iem Wfo | IWX |
| Iem Remark | Video from this area appears to show 2 to 4 inch tree limbs falling. |
| MergedSources | [{"id":"iem_D_41.330_-85.580_1789516440000","source":"iem","severity":"low","severityValue":25,"timestamp":1789516440000,"latitude":41.33,"longitude":-85.58}] |
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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