This alert expired on 4 July 2026 at 03:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 133 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued July 3 at 9:46PM CDT until July 3 at 10:45PM CDT by NWS Quad Cities IA IL
An estimated 266,802 people live within 50 km of this point.
Nearby, since 10 March 2026
- July 5, 2026 · score 43 · 7.9 km
- July 5, 2026 · score 43 · 8.1 km
- May 18, 2026 · score 43 · 9.8 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % 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) | 43 / 100 |
| Our confidence | 90% |
| Coordinates | 41.5423, -90.4369 |
| Nearest City | East Moline (5 km) |
| Population Exposed | 266.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T02:46:00.000Z |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Scott, IA; Rock Island, IL |
| Headline | Flash Flood Warning issued July 3 at 9:46PM CDT until July 3 at 10:45PM CDT by NWS Quad Cities IA IL |
| Expires | 2026-07-03T22:45:00-05:00 |
| SenderName | NWS Quad Cities IA IL |
| HasExactCoords | true |
| Iem TypeSummary | F |
| Iem City | 1 ESE Davenport |
| Iem County | Scott |
| Iem State | IA |
| Iem Wfo | DVN |
| Iem Remark | Western Avenue closed due to water over it. Several other roads with water on them as well. |
| MergedSources | [{"id":"iem_D_41.530_-90.580_1783126620000","source":"iem","severity":"low","severityValue":25,"timestamp":1783126620000,"latitude":41.53,"longitude":-90.58},{"id":"iem_F_41.550_-90.580_1783128300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783128300000,"latitude":41.55,"longitude":-90.58}] |
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 43/100, near East Moline (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.