This alert expired on 8 June 2026 at 20:00 UTC. It is kept here as a record.
It is the 155th strongest of the 260 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 8 at 1:07PM CDT until June 8 at 3:00PM CDT by NWS Lincoln IL
An estimated 845,283 people live within 50 km of this point.
Nearby, since 15 March 2026
- May 23, 2026 · score 48 · 3.8 km
- May 24, 2026 · score 48 · 7.8 km
- July 11, 2026 · score 52 · 9.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 38.9047, -89.9310 |
| Nearest City | Edwardsville (11 km) |
| Population Exposed | 845.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-08T18:07:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Moultrie, IL; Shelby, IL; Madison, IL; Franklin, MO; Jefferson, MO; St. Charles, MO; St. Louis, MO; Madison, IL and 1 more areas |
| Headline | Flash Flood Warning issued June 8 at 1:07PM CDT until June 8 at 3:00PM CDT by NWS Lincoln IL |
| Expires | 2026-06-08T15:00:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.98a55244f114328b95879fdcf3474f92f00af108.001.1","noaa_urn:oid:2.49.0.1.840.0.4d115833ccbd0a0d3a1eb8b00bd6d735b8cae1a1.002.1","noaa_urn:oid:2.49.0.1.840.0.09297efe92ee297657b1324ada5c30d0d8b8a0d8.001.1","noaa_urn:oid:2.49.0.1.840.0.b8b88691fd81f758ead785a50dfaf667d4c15d4c.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 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 48/100, near Edwardsville (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.