Right now
The most recent data we hold from NOAA arrived 6 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
2 other detections within 20 km in the last 24 hours, the nearest 19 km from here.
This alert expired on 10 July 2026 at 11:15 UTC. It is kept here as a record.
No stronger detection stands among the 46 recorded within 20 km of this point since 16 March 2026 — 24 others scored the same. The last comparable one was on 10 July 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Watch issued July 9 at 10:11AM CDT until July 11 at 7:51PM CDT by NWS Des Moines IA
An estimated 109,715 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 26, 2026 · score 43 · 1.8 km
- July 13, 2026 · score 43 · 2.9 km
- May 16, 2026 · score 43 · 4.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 82 % 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) | 43 / 100 |
| Our confidence | 82% |
| Coordinates | 42.5949, -92.4415 |
| Nearest City | Cedar Falls (7 km) |
| Population Exposed | 109.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-11T19:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Watch_noaa_urn:oid:2.49.0.1.840.0.277d7b5d7a77ae6a7bb73f2bfa3601d9 |
Score Breakdown
Technical Details
| Event | Flood Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Bremer; Black Hawk; Black Hawk; Butler; Bremer; Black Hawk |
| Headline | Flood Watch issued July 9 at 10:11AM CDT until July 11 at 7:51PM CDT by NWS Des Moines IA |
| Expires | 2026-07-10T06:15:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.277d7b5d7a77ae6a7bb73f2bfa3601d940bc97df.003.1","noaa_urn:oid:2.49.0.1.840.0.277d7b5d7a77ae6a7bb73f2bfa3601d940bc97df.002.1","noaa_urn:oid:2.49.0.1.840.0.277d7b5d7a77ae6a7bb73f2bfa3601d940bc97df.004.1","noaa_urn:oid:2.49.0.1.840.0.277d7b5d7a77ae6a7bb73f2bfa3601d940bc97df.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.
Want to know when something happens near Cedar Falls?
Calamity.live data shows a weather event with CalamityScore 43/100, near Cedar Falls (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.