This alert expired on 4 July 2026 at 08:00 UTC. It is kept here as a record.
No stronger detection stands among the 118 recorded within 20 km of this point since 13 March 2026 — one other scored the same. The last comparable one was on 19 June 2026.
What the source measured
NOAA reported: Flash Flood Warning issued July 3 at 10:51PM CDT until July 4 at 3:00AM CDT by NWS Twin Cities/Chanhassen MN
An estimated 2,674,201 people live within 50 km of this point.
Nearby, since 13 March 2026
- March 13, 2026 · score 52 · 19.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 out of 100, at 80 % 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) | 52 / 100 |
| Our confidence | 80% |
| Coordinates | 44.9867, -92.9550 |
| Nearest City | Oakdale (3 km) |
| Population Exposed | 2.7M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T03:51:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.292e8214d5552b9d6fe7d664df75631c22589098.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Ramsey, MN; Washington, MN |
| Headline | Flash Flood Warning issued July 3 at 10:51PM CDT until July 4 at 3:00AM CDT by NWS Twin Cities/Chanhassen MN |
| Expires | 2026-07-04T03:00:00-05:00 |
| SenderName | NWS Twin Cities/Chanhassen MN |
| 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 52/100, near Oakdale (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.