This alert expired on 16 March 2026 at 19:00 UTC. It is kept here as a record.
It is the 27th strongest of the 104 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 15 March 2026. 18 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 15 at 10:29PM EDT until March 22 at 3:12PM EDT by NWS Indianapolis IN
An estimated 33,463 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 27, 2026 · score 34 · 2.3 km
- March 14, 2026 · score 34 · 6.5 km
- March 12, 2026 · score 34 · 7.5 km
How we know
Confirmed by 8 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 88 % 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 | 88% |
| Coordinates | 38.4654, -87.3137 |
| Nearest City | Vincennes (30 km) |
| Population Exposed | 33.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T02:29:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Edwards, IL; Gallatin, IL; Wabash, IL; White, IL; Gibson, IN; Knox, IN; Posey, IN; Gibson, IN; Knox, IN; Daviess, IN; Gibson, IN; Knox, IN; Pike, IN and 4 more areas |
| Headline | Flood Warning issued March 15 at 10:29PM EDT until March 22 at 3:12PM EDT by NWS Indianapolis IN |
| Expires | 2026-03-16T15:00:00-04:00 |
| SenderName | NWS Indianapolis IN |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff990ca7f2.006.1","noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff990ca7f2.004.1","noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff990ca7f2.005.1","noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff990ca7f2.001.1","noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff990ca7f2.003.1","noaa_urn:oid:2.49.0.1.840.0.f33a78947e8b90b83f968274278c95ff990ca7f2.002.1","noaa_urn:oid:2.49.0.1.840.0.36ce2be8125d8a50a3715ccb5f569ffd618bab89.001.1","noaa_urn:oid:2.49.0.1.840.0.eb3bdff6f691b1e280b1e56569a2b7fef1e33d28.001.1","noaa_urn:oid:2.49.0.1.840.0.dcdd38be4b14a1249c826fb86f1d34dd48fab148.001.1"] |
| Iem TypeSummary | D |
| Iem City | 3 W Monroe City |
| Iem County | Knox |
| Iem State | IN |
| Iem Wfo | IND |
| Iem Remark | Tree blown down by thunderstorm winds. |
| MergedSources | [{"id":"iem_D_38.270_-86.790_1773628980000","source":"iem","severity":"low","severityValue":25,"timestamp":1773628980000,"latitude":38.27,"longitude":-86.79},{"id":"iem_D_38.280_-86.960_1773628200000","source":"iem","severity":"low","severityValue":25,"timestamp":1773628200000,"latitude":38.28,"longitude":-86.96},{"id":"iem_D_38.410_-86.730_1773629100000","source":"iem","severity":"low","severityValue":25,"timestamp":1773629100000,"latitude":38.41,"longitude":-86.73},{"id":"iem_G_38.250_-86.950_1773629760000","source":"iem","severity":"low","severityValue":25,"timestamp":1773629760000,"latitude":38.25,"longitude":-86.95},{"id":"iem_G_38.050_-87.520_1773626460000","source":"iem","severity":"low","severityValue":25,"timestamp":1773626460000,"latitude":38.05,"longitude":-87.52},{"id":"iem_G_39.010_-87.650_1773626100000","source":"iem","severity":"low","severityValue":25,"timestamp":1773626100000,"latitude":39.01,"longitude":-87.65},{"id":"iem_D_38.620_-87.410_1773625920000","source":"iem","severity":"low","severityValue":25,"timestamp":1773625920000,"latitude":38.62,"longitude":-87.41}] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 Vincennes?
Calamity.live data shows a weather event with CalamityScore 34/100, near Vincennes (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.