Right now
The most recent data we hold from NOAA arrived 2 hours ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert is in force until 9 September 2026, 12:30 UTC.
It is the 29th strongest of the 48 detections recorded within 20 km of this point since 15 March 2026. The last comparable one was on 7 September 2026.
What the source measured
NOAA reported: Flash Flood Warning issued September 9 at 2:30AM CDT until September 9 at 7:30AM CDT by NWS Omaha/Valley NE
Nearby, since 15 March 2026
- September 7, 2026 · score 28 · 12.6 km
- June 1, 2026 · score 48 · 25.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 out of 100, at 61 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 16 / 100 |
| Our confidence | 61% |
| Coordinates | 41.4681, -95.1528 |
| Nearest City | Council Bluffs (63 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-09T07:30:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.e2ec4401858625f85cea4a18795383a5de4dcd50.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Harrison, IA; Mills, IA; Pottawattamie, IA; Shelby, IA; Dodge, NE; Douglas, NE; Sarpy, NE; Saunders, NE; Washington, NE; Adair, IA; Audubon, IA; Cass, IA; Dallas, IA; Guthrie, IA; Madison, IA; Polk, IA; Warren, IA |
| Headline | Flash Flood Warning issued September 9 at 2:30AM CDT until September 9 at 7:30AM CDT by NWS Omaha/Valley NE |
| Expires | 2026-09-09T07:30:00-05:00 |
| SenderName | NWS Omaha/Valley NE |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e2ec4401858625f85cea4a18795383a5de4dcd50.001.1","noaa_urn:oid:2.49.0.1.840.0.51aafee0ac3898b3faca9d165a7337bb073bc0db.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.
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