This alert expired on 10 June 2026 at 01:15 UTC. It is kept here as a record.
It is the 37th strongest of the 86 detections recorded within 20 km of this point since 12 March 2026. 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 June 9 at 9:08PM EDT until June 9 at 9:15PM EDT by NWS Indianapolis IN
An estimated 1,145,215 people live within 50 km of this point.
Nearby, since 12 March 2026
- June 17, 2026 · score 76 · 6.8 km
- August 1, 2026 · score 76 · 9.2 km
- May 19, 2026 · score 52 · 13.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 out of 100, at 80 % 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) | 46 / 100 |
| Our confidence | 80% |
| Coordinates | 39.5393, -86.5733 |
| Nearest City | Plainfield (23 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-10T01:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4a2501972b2647926021de2c49bd0c0a |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Marion, IN; Boone, IN; Clay, IN; Hendricks, IN; Marion, IN; Montgomery, IN; Morgan, IN; Owen, IN; Putnam, IN; Clay, IN; Greene, IN; Monroe, IN; Morgan, IN; Owen, IN; Sullivan, IN |
| Headline | Severe Thunderstorm Warning issued June 9 at 9:08PM EDT until June 9 at 9:15PM EDT by NWS Indianapolis IN |
| Expires | 2026-06-09T21:15:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4a2501972b2647926021de2c49bd0c0ad5f9d1a2.002.1","noaa_urn:oid:2.49.0.1.840.0.6a599cd57e24169b8ca8ed7bec672066b9880dbe.002.1","noaa_urn:oid:2.49.0.1.840.0.6c244c9357a9075c0040b49f077d55035114b353.001.1"] |
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 46/100, near Plainfield (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.