Right now
The most recent data we hold from NOAA arrived 17 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 18 May 2026 at 22:00 UTC. It is kept here as a record.
No stronger detection stands among the 54 recorded within 20 km of this point since 16 March 2026 — 30 others scored the same. Another comparable one was recorded here earlier the same day. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 5:51PM EDT until May 18 at 6:00PM EDT by NWS Indianapolis IN
An estimated 15,451 people live within 50 km of this point.
Nearby, since 16 March 2026
- May 18, 2026 · score 34 · 0.0 km
- May 26, 2026 · score 34 · 1.5 km
- August 27, 2026 · score 28 · 6.1 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 89 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 34 / 100 |
| Our confidence | 89% |
| Coordinates | 38.5107, -86.8682 |
| Nearest City | Jasper (14 km) |
| Population Exposed | 15.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T21:51:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.3df364df5dc2e0e43c59de01d739fff9 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Martin, IN; Dubois, IN |
| Headline | Severe Thunderstorm Warning issued May 18 at 5:51PM EDT until May 18 at 6:00PM EDT by NWS Indianapolis IN |
| Expires | 2026-05-18T18:00:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.3df364df5dc2e0e43c59de01d739fff92fc02978.002.1","noaa_urn:oid:2.49.0.1.840.0.622215bc72dcf13d765cecbd92eda849349de129.001.1"] |
| Iem TypeSummary | E |
| Iem City | 3 NW Bicknell |
| Iem County | Knox |
| Iem State | IN |
| Iem Wfo | IND |
| Iem Remark | Several areas from Bruceville to Oaktown Road have standing or flowing water from heavy rains. |
| MergedSources | [{"id":"iem_E_38.740_-87.440_1779136860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779136860000,"latitude":38.74,"longitude":-87.44},{"id":"iem_E_38.870_-87.270_1779135360000","source":"iem","severity":"low","severityValue":25,"timestamp":1779135360000,"latitude":38.87,"longitude":-87.27},{"id":"iem_E_38.810_-87.350_1779136860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779136860000,"latitude":38.81,"longitude":-87.35}] |
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.
Want to know when something happens near Jasper?
Calamity.live data shows a weather event with CalamityScore 34/100, near Jasper (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.