Right now
The most recent data we hold from NOAA arrived 2 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 14 March 2026 at 21:30 UTC. It is kept here as a record.
It is the 4th strongest of the 11 detections recorded within 20 km of this point since 14 March 2026. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 14 at 6:25AM PDT until March 14 at 9:55PM PDT by NWS Seattle WA
Urban PEI: 53,601 within a heuristic 50 km radius; not unique people.
Nearby, since 14 March 2026
- March 14, 2026 · score 43 · 19.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 39 / 100 |
| Legacy data-support index | 0.79/1 |
| Coordinates | 46.5687, -123.0576 |
| Nearest City | Centralia (19 km) |
| Urban exposure index (PEI) | 53.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-14T22:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood-Warning_noaa_urn-oid-2_49_0_1_840_0_f9134ed03245948e7f1ee42937afb5b3 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-03-14T22:21:00.000Z.
First archived: 2026-03-14T14:28:46.346Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lewis, WA; Thurston, WA; Grays Harbor, WA; Thurston, WA and 3 more areas |
| Headline | Flood Warning issued March 14 at 6:25AM PDT until March 14 at 9:55PM PDT by NWS Seattle WA |
| Expires | 2026-03-14T14:30:00-07:00 |
| SenderName | NWS Seattle WA |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.f9134ed03245948e7f1ee42937afb5b38f552994.001.1","noaa_urn:oid:2.49.0.1.840.0.593c0b2479e28b4e930cc1e5ee226dd73f9e778a.001.1","noaa_urn:oid:2.49.0.1.840.0.699e26caf134b290cc517f34c838c948487c9c4d.001.1","noaa_urn:oid:2.49.0.1.840.0.46d752233cc84005a6de62e99912eb477ef03dd9.003.1","noaa_urn:oid:2.49.0.1.840.0.46d752233cc84005a6de62e99912eb477ef03dd9.002.1","noaa_urn:oid:2.49.0.1.840.0.46d752233cc84005a6de62e99912eb477ef03dd9.001.1","noaa_urn:oid:2.49.0.1.840.0.5dccf5ded36ef36c6063c8b42df21d32154a4eea.001.1","noaa_urn:oid:2.49.0.1.840.0.be6bf2bae8ca3fa4c76d950ad85fd0054b6e4225.001.1","noaa_urn:oid:2.49.0.1.840.0.d793da77f4315b6eefc186d3ef7fc238778b4776.001.1","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.
Review the area, threshold and delivery channel in your account.
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