Right now
The most recent data we hold from NOAA arrived 4 hours 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 12 June 2026 at 04:00 UTC. It is kept here as a record.
It is the 12th strongest of the 89 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 11 at 8:44PM CDT until June 11 at 11:00PM CDT by NWS Lincoln IL
Urban PEI: 114,394 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- June 20, 2026 · score 43 · 7.1 km
- July 4, 2026 · score 43 · 16.0 km
- June 20, 2026 · score 37 · 22.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.0545, -89.6438 |
| Nearest City | Springfield (28 km) |
| Urban exposure index (PEI) | 114.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-12T01:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.794d85f66c08f90dc2e3b4f15f5ad392 |
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: 2026-06-12T01:44:00.000Z.
First archived: 2026-06-12T02:33:06.719Z. 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 | Cass, IL; Logan, IL; Mason, IL; Menard, IL; Morgan, IL; Sangamon, IL; Scott, IL; Tazewell, IL; Christian, IL; Macon, IL; Morgan, IL; Piatt, IL; Sangamon, IL; Fulton, IL; Peoria, IL and 1 more areas |
| Headline | Flash Flood Warning issued June 11 at 8:44PM CDT until June 11 at 11:00PM CDT by NWS Lincoln IL |
| Expires | 2026-06-11T23:00:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.794d85f66c08f90dc2e3b4f15f5ad39234645dbf.001.1","noaa_urn:oid:2.49.0.1.840.0.f1f46c8eb3d672da34cfda6b526eb8a9c7931abe.001.1","noaa_urn:oid:2.49.0.1.840.0.a1cb000e532aae586d7db8b703d5a2e0a98c7185.001.1","noaa_urn:oid:2.49.0.1.840.0.0f25217583931d23512d3f5614be0d89f729a4a5.001.1"] |
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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