Right now
The most recent data we hold from NOAA arrived 3 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 9 June 2026 at 02:15 UTC. It is kept here as a record.
It is the 4th strongest of the 59 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 1 June 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 8 at 6:17PM CDT until June 8 at 9:15PM CDT by NWS St Louis MO
An estimated 44,202 people live within 50 km of this point.
Nearby, since 15 March 2026
- June 16, 2026 · score 34 · 9.3 km
- March 15, 2026 · score 58 · 16.5 km
- July 11, 2026 · score 32 · 19.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 out of 100, at 80 % 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 | 80% |
| Coordinates | 37.9005, -89.4190 |
| Nearest City | Carbondale (26 km) |
| Population Exposed | 44.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-08T23:17:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.d65d97a9231be37d08f341443b4c1b5d |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Clinton, IL; Marion, IL; Alexander, IL; Union, IL; Cape Girardeau, MO; Scott, MO |
| Headline | Flash Flood Warning issued June 8 at 6:17PM CDT until June 8 at 9:15PM CDT by NWS St Louis MO |
| Expires | 2026-06-08T21:15:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.d65d97a9231be37d08f341443b4c1b5d76ab10ce.001.1","noaa_urn:oid:2.49.0.1.840.0.c745785e5f59233df4e759d829cb44f3dbbb6784.001.1"] |
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.
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