This alert expired on 4 August 2026 at 01:15 UTC. It is kept here as a record.
It is the 16th strongest of the 51 detections recorded within 20 km of this point since 16 March 2026. The last comparable one was on 2 August 2026. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Watch issued August 2 at 8:11PM CDT until August 4 at 5:00AM CDT by NWS Quad Cities IA IL
An estimated 266,802 people live within 50 km of this point.
Nearby, since 16 March 2026
- August 14, 2026 · score 43 · 0.0 km
- August 2, 2026 · score 43 · 0.0 km
- June 12, 2026 · score 37 · 0.0 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, 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) | 37 / 100 |
| Our confidence | 82% |
| Coordinates | 41.8371, -90.6986 |
| Nearest City | Davenport (37 km) |
| Population Exposed | 266.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-03T01:11:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.e466978532fe2e7f874714c53b827ce5db6ce923.001.1 |
Score Breakdown
Technical Details
| Event | Flood Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Clinton; Scott |
| Headline | Flood Watch issued August 2 at 8:11PM CDT until August 4 at 5:00AM CDT by NWS Quad Cities IA IL |
| Expires | 2026-08-03T20:15:00-05:00 |
| SenderName | NWS Quad Cities IA IL |
| HasExactCoords | true |
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 37/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.