Right now
The most recent data we hold from NOAA arrived 26 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 19 July 2026 at 00:00 UTC. It is kept here as a record.
It is the 51st strongest of the 456 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 4 July 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued July 18 at 1:20PM EDT until July 18 at 8:00PM EDT by NWS Northern Indiana
Urban PEI: 1,525,459 within a heuristic 50 km radius; not unique people.
Nearby, since 10 March 2026
- September 5, 2026 · score 46 · 0.0 km
- August 13, 2026 · score 52 · 0.0 km
- August 12, 2026 · score 52 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 39.8000, -86.1000 |
| Nearest City | Indianapolis (6 km) |
| Urban exposure index (PEI) | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-18T17:20:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d84a0be67c26a729afdee5d32021591dd1d3c208.001.1 |
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: 2026-07-18T17:20:00.000Z.
First archived: 2026-07-18T20:18:10.133Z. 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 Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Adams, IN; Allen, IN; Blackford, IN; Cass, IN; De Kalb, IN; Elkhart, IN; Fulton, IN; Grant, IN; Huntington, IN; Jay, IN; Kosciusko, IN; Lagrange, IN; La Porte, IN; Marshall, IN; Miami, IN; Noble, IN; Pulaski, IN; St. Joseph, IN; Starke, IN; Steuben, IN; Wabash, IN; Wells, IN; White, IN; Whitley, IN; Branch, MI; Hillsdale, MI; St. Joseph, MI; Allen, OH; Defiance, OH; Fulton, OH; Henry, OH; Paulding, OH; Putnam, OH; Van Wert, OH; Williams, OH |
| Headline | Severe Thunderstorm Watch issued July 18 at 1:20PM EDT until July 18 at 8:00PM EDT by NWS Northern Indiana |
| Expires | 2026-07-18T20:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | false |
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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