This alert expired on 11 March 2026 at 06:00 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.
What the source measured
NOAA reported: Tornado Watch issued March 10 at 7:45PM EDT until March 11 at 2:00AM EDT by NWS Northern Indiana
An estimated 1,525,459 people live within 50 km of this point.
Nearby, since 10 March 2026
- July 27, 2026 · score 52 · 0.0 km
- June 21, 2026 · score 64 · 0.0 km
- June 6, 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 78 % 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 | 78% |
| Coordinates | 39.8000, -86.1000 |
| Nearest City | Indianapolis (6 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-10T23:45:00.000Z |
Score Breakdown
Technical Details
| Event | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Elkhart, IN; Fulton, IN; Kosciusko, IN; Lagrange, IN; La Porte, IN; Marshall, IN; Pulaski, IN; St. Joseph, IN; Starke, IN; Steuben, IN; Berrien, MI; Branch, MI; Cass, MI; St. Joseph, MI; New Buffalo MI to St Joseph MI; Michigan City IN to New Buffalo MI; Lake Michigan Michigan City IN to St. Joseph MI 5 NM offshore to mid-line of lake.; Lake, IN; Porter, IN |
| Headline | Tornado Watch issued March 10 at 7:45PM EDT until March 11 at 2:00AM EDT by NWS Northern Indiana |
| Expires | 2026-03-11T02:00:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | false |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.713294f0ab249adebfc1ae2b2b0416a867c758e6.001.1","noaa_urn:oid:2.49.0.1.840.0.713294f0ab249adebfc1ae2b2b0416a867c758e6.002.1","noaa_urn:oid:2.49.0.1.840.0.6209990f0411e8e70be88c6be742a06bb9262aae.001.2"] |
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.
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 191 scientific monitoring sources.