Right now
The most recent data we hold from NOAA arrived 39 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
This alert expired on 22 June 2026 at 01:30 UTC. It is kept here as a record.
What the source measured
NOAA reported: Flash Flood Warning issued June 21 at 5:59PM CDT until June 21 at 8:30PM CDT by NWS St Louis MO
Urban PEI: 39,309 within a heuristic 50 km radius; not unique people.
How we know
12 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 39.0992, -88.1746 |
| Nearest City | Charleston (45 km) |
| Urban exposure index (PEI) | 39.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-21T22:59:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.2ca329f7b9eb7d96552d7928e08b6f7d |
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: 2026-06-21T22:59:00.000Z.
First archived: 2026-06-21T23:11:05.786Z. 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 | Marion, IL; Sullivan, IN; Vigo, IN; Decatur, IN and 7 more areas |
| Headline | Flash Flood Warning issued June 21 at 5:59PM CDT until June 21 at 8:30PM CDT by NWS St Louis MO |
| Expires | 2026-06-21T20:30:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| MergedCount | 10 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2ca329f7b9eb7d96552d7928e08b6f7d2e79564f.001.1","noaa_urn:oid:2.49.0.1.840.0.a7beffb38410a0303db59ae809b9eff39092b048.001.1","noaa_urn:oid:2.49.0.1.840.0.d54746353709470cfb6d33bebd12a65bb408fa00.001.1","noaa_urn:oid:2.49.0.1.840.0.9c0b38832253ded4bc9e586ff1f58a51731fd4be.001.1","noaa_urn:oid:2.49.0.1.840.0.4a1427c6f87cd48cadc300ba5d542fca5fdfed63.001.1","noaa_urn:oid:2.49.0.1.840.0.c58b840f8ec36868e894f488074c83881fe90af3.001.1","noaa_urn:oid:2.49.0.1.840.0.ec77b9cf968a125a06ef13759dad4f84d0355096.001.1","noaa_urn:oid:2.49.0.1.840.0.bdc781696cbce42a79df3ab20b99bac88ef08404.001.1","noaa_urn:oid:2.49.0.1.840.0.ea976325db249d0420bfb1494359389efdccf7f8.001.1","noaa_urn:oid:2.49.0.1.840.0.3cbbecd4778ffb401243c6e959bdd8a705cb488d.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 NW Saint Paul |
| Iem County | Fayette |
| Iem State | IL |
| Iem Wfo | LSX |
| Iem Remark | Multiple trees down, multiple branches strewn about, and power lines down along CR 1900N near N 1300E. |
| MergedSources | [{"id":"iem_C_39.240_-88.700_1782073140000","source":"iem","severity":"low","severityValue":25,"timestamp":1782073140000,"latitude":39.24,"longitude":-88.7},{"id":"iem_E_39.380_-88.350_1782079260000","source":"iem","severity":"low","severityValue":25,"timestamp":1782079260000,"latitude":39.38,"longitude":-88.35},{"id":"iem_T_38.840_-88.380_1782074820000","source":"iem","severity":"low","severityValue":25,"timestamp":1782074820000,"latitude":38.84,"longitude":-88.38},{"id":"iem_D_39.330_-88.430_1782075960000","source":"iem","severity":"low","severityValue":25,"timestamp":1782075960000,"latitude":39.33,"longitude":-88.43},{"id":"iem_T_38.730_-88.870_1782077880000","source":"iem","severity":"low","severityValue":25,"timestamp":1782077880000,"latitude":38.73,"longitude":-88.87},{"id":"iem_T_38.770_-88.500_1782074040000","source":"iem","severity":"low","severityValue":25,"timestamp":1782074040000,"latitude":38.77,"longitude":-88.5},{"id":"iem_C_38.680_-88.630_1782073200000","source":"iem","severity":"low","severityValue":25,"timestamp":1782073200000,"latitude":38.68,"longitude":-88.63},{"id":"iem_D_39.320_-88.430_1782074580000","source":"iem","severity":"low","severityValue":25,"timestamp":1782074580000,"latitude":39.32,"longitude":-88.43},{"id":"iem_T_38.780_-88.670_1782078060000","source":"iem","severity":"low","severityValue":25,"timestamp":1782078060000,"latitude":38.78,"longitude":-88.67},{"id":"iem_T_38.980_-88.150_1782076440000","source":"iem","severity":"low","severityValue":25,"timestamp":1782076440000,"latitude":38.98,"longitude":-88.15},{"id":"iem_D_38.870_-88.980_1782075660000","source":"iem","severity":"low","severityValue":25,"timestamp":1782075660000,"latitude":38.87,"longitude":-88.98}] |
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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