This alert expired on 16 March 2026 at 07:00 UTC. It is kept here as a record.
It is the 4th strongest of the 453 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued March 15 at 11:07PM EDT until March 16 at 3:00AM EDT by NWS Indianapolis IN
An estimated 1,525,459 people live within 50 km of this point.
Nearby, since 10 March 2026
- August 13, 2026 · score 52 · 0.0 km
- August 12, 2026 · score 52 · 0.0 km
- August 11, 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 64 out of 100, at 77 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | high |
| Calamity Score (ours) | 64 / 100 |
| Our confidence | 77% |
| Coordinates | 39.8000, -86.1000 |
| Nearest City | Indianapolis (6 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-16T03:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.4bdf9af684a8d5845c6cdccb7a75bd05 |
Score Breakdown
Technical Details
| Event | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Bartholomew, IN; Boone, IN; Brown, IN; Clinton, IN; Decatur, IN; Hamilton, IN; Hancock, IN; Hendricks, IN; Howard, IN; Jackson, IN; Jennings, IN; Johnson, IN; Lawrence, IN; Madison, IN; Marion, IN; Monroe, IN; Morgan, IN; Rush, IN; Shelby, IN; Tipton, IN; Spencer, IN; Daviess, KY; McLean, KY; Muhlenberg, KY; Todd, KY; Clark, IN; Crawford, IN; Dubois, IN; Floyd, IN; Harrison, IN; Jefferson, IN; Orange, IN; Perry, IN; Scott, IN; Washington, IN; Adair, KY; Allen, KY; Anderson, KY; Barren, KY; Boyle, KY; Breckinridge, KY; Bullitt, KY; Butler, KY; Casey, KY; Clinton, KY; Cumberland, KY; Edmonson, KY; Franklin, KY; Grayson, KY; Green, KY; Hancock, KY; Hardin, KY; Hart, KY; Henry, KY; Jefferson, KY; Larue, KY; Logan, KY; Marion, KY; Meade, KY; Mercer, KY; Metcalfe, KY; Monroe, KY; Nelson, KY; Ohio, KY; Oldham, KY; Russell, KY; Shelby, KY; Simpson, KY; Spencer, KY; Taylor, KY; Trimble, KY; Warren, KY; Washington, KY; Woodford, KY and 1 more areas |
| Headline | Tornado Watch issued March 15 at 11:07PM EDT until March 16 at 3:00AM EDT by NWS Indianapolis IN |
| Expires | 2026-03-16T03:00:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | false |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4bdf9af684a8d5845c6cdccb7a75bd057c19be99.002.1","noaa_urn:oid:2.49.0.1.840.0.a2e1fac5850afe1b98efef66344f3910052a6168.002.1","noaa_urn:oid:2.49.0.1.840.0.3ba7079d4778fd70256ae2c45b737c620f10a993.001.1","noaa_urn:oid:2.49.0.1.840.0.40969117c92a5b1915e31efd58d9ee8bf1122ab0.001.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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.
Want to know when something happens near Indianapolis?
Calamity.live data shows a weather event with CalamityScore 64/100, near Indianapolis (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.