This alert expired on 15 March 2026 at 12:00 UTC. It is kept here as a record.
No stronger detection stands among the 9 recorded within 20 km of this point since 14 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 14 at 8:46PM PDT until March 16 at 11:29PM PDT by NWS Seattle WA
An estimated 138,085 people live within 50 km of this point.
Nearby, since 14 March 2026
- March 14, 2026 · score 43 · 11.2 km
- March 15, 2026 · score 43 · 18.9 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, at 78 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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 |
| Our confidence | 78% |
| Coordinates | 46.8467, -123.0805 |
| Nearest City | Centralia (17 km) |
| Population Exposed | 138.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T03:46:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood-Warning_noaa_urn-oid-2_49_0_1_840_0_4a4ad6513e822e269b2dfd0643c3c18b |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Grays Harbor, WA; Grays Harbor, WA; Thurston, WA; Thurston, WA |
| Headline | Flood Warning issued March 14 at 8:46PM PDT until March 16 at 11:29PM PDT by NWS Seattle WA |
| Expires | 2026-03-15T05:00:00-07:00 |
| SenderName | NWS Seattle WA |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4a4ad6513e822e269b2dfd0643c3c18b4e6c986a.001.1","noaa_urn:oid:2.49.0.1.840.0.e697d2c91effeb0bc685965fc6d45efd908b3bd0.001.1","noaa_urn:oid:2.49.0.1.840.0.ea866fd375d11ab94ec2b9e8e0a99498a62ec077.001.1","noaa_urn:oid:2.49.0.1.840.0.be6bf2bae8ca3fa4c76d950ad85fd0054b6e4225.001.1","noaa_urn:oid:2.49.0.1.840.0.134f827f97f7a1f52a9706632f825308d34ca3d6.001.1","noaa_urn:oid:2.49.0.1.840.0.02ec95653b8ee7b9e63b68739620a4b127cc7986.001.1"] |
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.
Want to know when something happens near Centralia?
Calamity.live data shows a weather event with CalamityScore 43/100, near Centralia (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.