Right now
The most recent data we hold from NOAA arrived 7 hours ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 5 July 2026 at 07:45 UTC. It is kept here as a record.
It is the 10th strongest of the 67 detections recorded within 20 km of this point since 14 April 2026. The last comparable one was on 2 July 2026. 17 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 4 at 6:39AM CDT until July 8 at 7:46AM CDT by NWS Des Moines IA
Urban PEI: 109,715 within a heuristic 50 km radius; not unique people.
Nearby, since 14 April 2026
- July 5, 2026 · score 43 · 5.7 km
- July 26, 2026 · score 43 · 12.7 km
- August 7, 2026 · score 67 · 18.8 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.
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) | 43 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 42.5932, -92.1528 |
| Nearest City | Waterloo (19 km) |
| Urban exposure index (PEI) | 109.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-05T00:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.48eba8efd9e1c0d5185b383404a47e97 |
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: 2026-07-05T00:00:00.000Z.
First archived: 2026-07-04T11:51:29.975Z. 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 | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Jasper, IA; Marion, IA; Polk, IA; Boone, IA; Jasper, IA; Marshall, IA; Polk, IA; Story, IA; Story, IA and 8 more areas |
| Headline | Flood Warning issued July 4 at 6:39AM CDT until July 8 at 7:46AM CDT by NWS Des Moines IA |
| Expires | 2026-07-05T02:45:00-05:00 |
| SenderName | NWS Des Moines IA |
| HasExactCoords | true |
| MergedCount | 14 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.48eba8efd9e1c0d5185b383404a47e978ca64c49.001.1","noaa_urn:oid:2.49.0.1.840.0.7da4045512d251e558d2e33ce358447c253a5b9a.001.1","noaa_urn:oid:2.49.0.1.840.0.da7ccc3d243a11681b9d7917a9bd3724dfdaa515.002.1","noaa_urn:oid:2.49.0.1.840.0.da7ccc3d243a11681b9d7917a9bd3724dfdaa515.001.1","noaa_urn:oid:2.49.0.1.840.0.b9dc0cdf348bc42c6932ed8a48c5f6bcf112f7fc.001.1","noaa_urn:oid:2.49.0.1.840.0.4b3a24e5aa3babb3742b5cb35d0ce030243616a4.001.1","noaa_urn:oid:2.49.0.1.840.0.5eca523359ffece23e180e603bf7897fdfd4826b.001.1","noaa_urn:oid:2.49.0.1.840.0.b7fbf9876370736f56bb25eee739e4276ea3da4a.001.1","noaa_urn:oid:2.49.0.1.840.0.44a9a15272ba63197c42e1d228ea58bf85f724b1.001.1","noaa_urn:oid:2.49.0.1.840.0.f48d7e8135b7a04f2e88b8088078197409c68bdb.001.1","noaa_urn:oid:2.49.0.1.840.0.f48d7e8135b7a04f2e88b8088078197409c68bdb.003.1","noaa_urn:oid:2.49.0.1.840.0.f48d7e8135b7a04f2e88b8088078197409c68bdb.002.1","noaa_urn:oid:2.49.0.1.840.0.f48d7e8135b7a04f2e88b8088078197409c68bdb.004.1","noaa_urn:oid:2.49.0.1.840.0.f48d7e8135b7a04f2e88b8088078197409c68bdb.005.1"] |
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.
Review the area, threshold and delivery channel in your account.
Want to know when something happens near Waterloo?