This alert expired on 22 May 2026 at 05:00 UTC. It is kept here as a record.
It is the 6th strongest of the 22 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 4 May 2026. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued May 21 at 7:59AM CDT until May 25 at 12:24AM CDT by NWS Lincoln IL
An estimated 611,277 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 15, 2026 · score 72 · 1.6 km
- March 15, 2026 · score 48 · 4.0 km
- July 11, 2026 · score 52 · 6.5 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 82 % 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 | 82% |
| Coordinates | 39.0574, -90.5024 |
| Nearest City | Godfrey (29 km) |
| Population Exposed | 611.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-21T15:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.2a48b15ca1ff51fc2c6edca517de7f5a |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Clay, IL; Richland, IL; Wayne, IL; White, IL; Lawrence, IL and 30 more areas |
| Headline | Flood Warning issued May 21 at 7:59AM CDT until May 25 at 12:24AM CDT by NWS Lincoln IL |
| Expires | 2026-05-22T00:00:00-05:00 |
| SenderName | NWS Lincoln IL |
| HasExactCoords | true |
| MergedCount | 37 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2a48b15ca1ff51fc2c6edca517de7f5a569c9542.001.1","noaa_urn:oid:2.49.0.1.840.0.51c81537d0d40a6c5ff9f397b57190fbbd942c25.001.1","noaa_urn:oid:2.49.0.1.840.0.a007a4b93819df5d693d53d935d7e012c01c59b7.001.1","noaa_urn:oid:2.49.0.1.840.0.201d4d0e609856f1e9fa489089d3ee1517d096e7.001.1","noaa_urn:oid:2.49.0.1.840.0.8a44a8979ccd54f92a35db6c01c43daaafdaa4bb.001.1","noaa_urn:oid:2.49.0.1.840.0.8a44a8979ccd54f92a35db6c01c43daaafdaa4bb.005.1","noaa_urn:oid:2.49.0.1.840.0.8a44a8979ccd54f92a35db6c01c43daaafdaa4bb.004.1","noaa_urn:oid:2.49.0.1.840.0.8a44a8979ccd54f92a35db6c01c43daaafdaa4bb.002.1","noaa_urn:oid:2.49.0.1.840.0.8a44a8979ccd54f92a35db6c01c43daaafdaa4bb.006.1","noaa_urn:oid:2.49.0.1.840.0.8a44a8979ccd54f92a35db6c01c43daaafdaa4bb.003.1","noaa_urn:oid:2.49.0.1.840.0.310240139040545b80868f62f2ea7ecf5b1451ee.002.1","noaa_urn:oid:2.49.0.1.840.0.310240139040545b80868f62f2ea7ecf5b1451ee.004.1","noaa_urn:oid:2.49.0.1.840.0.310240139040545b80868f62f2ea7ecf5b1451ee.003.1","noaa_urn:oid:2.49.0.1.840.0.5db15c5f9c6afdf6513f8d44e85f23e8c7bd7b7a.001.1","noaa_urn:oid:2.49.0.1.840.0.2c66ac5962737645cde5d5a3da869aedeaae8db8.001.1","noaa_urn:oid:2.49.0.1.840.0.ea5691a139abb1b6346594c2fc48331d8f730710.001.1","noaa_urn:oid:2.49.0.1.840.0.258988fe1ac413e4df2f30b4dab2ab597a67710b.001.1","noaa_urn:oid:2.49.0.1.840.0.a6e0650c3222075599057ce2e812dba7e082bf9b.002.1","noaa_urn:oid:2.49.0.1.840.0.a6e0650c3222075599057ce2e812dba7e082bf9b.001.1","noaa_urn:oid:2.49.0.1.840.0.92d671855f243f951257e7e76b994de22d2de280.001.1","noaa_urn:oid:2.49.0.1.840.0.8ca1de0fa6f71cdb8d0dc8293c5387c8faa34825.005.1","noaa_urn:oid:2.49.0.1.840.0.8ca1de0fa6f71cdb8d0dc8293c5387c8faa34825.001.1","noaa_urn:oid:2.49.0.1.840.0.8ca1de0fa6f71cdb8d0dc8293c5387c8faa34825.002.1","noaa_urn:oid:2.49.0.1.840.0.8ca1de0fa6f71cdb8d0dc8293c5387c8faa34825.003.1","noaa_urn:oid:2.49.0.1.840.0.16c58d2a12d6341819a77d03f021d23c53101f90.005.1","noaa_urn:oid:2.49.0.1.840.0.16c58d2a12d6341819a77d03f021d23c53101f90.001.1","noaa_urn:oid:2.49.0.1.840.0.16c58d2a12d6341819a77d03f021d23c53101f90.003.1","noaa_urn:oid:2.49.0.1.840.0.16c58d2a12d6341819a77d03f021d23c53101f90.004.1","noaa_urn:oid:2.49.0.1.840.0.b97ca6a14a1edb14f81894cd575999c5a476ef62.001.1","noaa_urn:oid:2.49.0.1.840.0.13d2c6b57d6de597cf9950c8383fff4def48cc58.001.1","noaa_urn:oid:2.49.0.1.840.0.10266971fc45a981506e8898df90f5aa3447e2f2.002.1","noaa_urn:oid:2.49.0.1.840.0.10266971fc45a981506e8898df90f5aa3447e2f2.001.1","noaa_urn:oid:2.49.0.1.840.0.892c94d9b3df6a67156fae5c9f2f5b1cec0fe0ec.001.1","noaa_urn:oid:2.49.0.1.840.0.81bf49bee195497dad7501d92040c16bdb60e2b9.001.1","noaa_urn:oid:2.49.0.1.840.0.1617281861c3ba7f5e1e0a913ce672aa96068d70.001.1","noaa_urn:oid:2.49.0.1.840.0.9f3d4e166383b1444a96e66dd5667faede21c5eb.001.1","noaa_urn:oid:2.49.0.1.840.0.9f3d4e166383b1444a96e66dd5667faede21c5eb.002.1"] |
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 Godfrey (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.