Right now
The most recent data we hold from NOAA arrived 33 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 28 July 2026 at 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 29 recorded within 20 km of this point since 12 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 27 at 6:59PM CDT until July 27 at 10:00PM CDT by NWS Lincoln IL
Urban PEI: 1,361,857 within a heuristic 50 km radius; not unique people.
Nearby, since 12 March 2026
- March 12, 2026 · score 52 · 6.9 km
- September 5, 2026 · score 46 · 12.0 km
- July 4, 2026 · score 52 · 15.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 52 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 39.8189, -86.5510 |
| Nearest City | Brownsburg (13 km) |
| Urban exposure index (PEI) | 1.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-27T23:59:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.dbbf0f2e8388b8e9a8bea63eb5f0d1aa |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-27T23:59:00.000Z.
First archived: 2026-07-28T02:41:08.770Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Clark, IL; Edgar, IL; Hancock, IN; Hendricks, IN; Marion, IN; Boone, IN; Clinton, IN; Delaware, IN; Hamilton, IN; Henry, IN; Madison, IN; Tipton, IN |
| Headline | Flash Flood Warning issued July 27 at 6:59PM CDT until July 27 at 10:00PM CDT by NWS Lincoln IL |
| Expires | 2026-07-27T22:00:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.dbbf0f2e8388b8e9a8bea63eb5f0d1aaa133f489.001.1","noaa_urn:oid:2.49.0.1.840.0.c319a1b67a9541d289c09aa68e45774ba7c133f6.001.1","noaa_urn:oid:2.49.0.1.840.0.b31536dbe2ed7bf8b3e163224a2759dad0585ad2.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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