Right now
The most recent data we hold from NOAA arrived 15 minutes ago, and this point is in it.
2 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert is in force until 13 September 2026, 23:00 UTC.
It is the 26th strongest of the 31 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 2 August 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Watch issued September 12 at 7:41PM PDT until September 13 at 8:00PM PDT by NWS Spokane WA
Nearby, since 12 March 2026
- September 13, 2026 · score 16 · 0.0 km
- August 2, 2026 · score 28 · 0.0 km
- August 1, 2026 · score 28 · 0.0 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 | 47.8000, -120.7000 |
| Nearest City | Wenatchee (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-09-13T08:00:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.10f3c49584be4c84004700a17f8fcc66ba56e964.003.1 |
Score Breakdown
Technical Details
| Event | Flood Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Grant, WA; Stevens, WA; Chelan, WA; Douglas, WA; Ferry, WA; Okanogan, WA |
| Headline | Flood Watch issued September 12 at 7:41PM PDT until September 13 at 8:00PM PDT by NWS Spokane WA |
| Expires | 2026-09-13T16:00:00-07:00 |
| SenderName | NWS Spokane WA |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.10f3c49584be4c84004700a17f8fcc66ba56e964.003.1","noaa_urn:oid:2.49.0.1.840.0.10f3c49584be4c84004700a17f8fcc66ba56e964.005.1"] |
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.
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