This alert expired on 10 March 2026 at 06:30 UTC. It is kept here as a record.
It is the 3rd strongest of the 28 detections recorded within 20 km of this point since 12 March 2026.
What the source measured
NOAA reported: Flood Watch issued March 9 at 10:27AM PDT until March 12 at 5:00PM PDT by NWS Seattle WA
Nearby, since 12 March 2026
- August 2, 2026 · score 28 · 0.0 km
- August 1, 2026 · score 28 · 0.0 km
- May 29, 2026 · score 22 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 60 % 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) | 22 / 100 |
| Our confidence | 60% |
| Coordinates | 47.8000, -120.7000 |
| Nearest City | Wenatchee (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-12T00:00:00.000Z |
Score Breakdown
Technical Details
| Event | Flood Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Mason, WA |
| Headline | Flood Watch issued March 9 at 10:27AM PDT until March 12 at 5:00PM PDT by NWS Seattle WA |
| Expires | 2026-03-09T23:30:00-07:00 |
| SenderName | NWS Seattle WA |
| HasExactCoords | false |
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 22/100, near Wenatchee (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.