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 16 March 2026 at 07:00 UTC. It is kept here as a record.
No stronger detection stands among the 17 recorded within 20 km of this point since 14 March 2026 — 5 others scored the same. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued March 15 at 1:06PM PDT until March 16 at 8:00AM PDT by NWS Pendleton OR
An estimated 180,584 people live within 50 km of this point.
Nearby, since 14 March 2026
- March 15, 2026 · score 43 · 0.0 km
- March 16, 2026 · score 43 · 14.0 km
- March 14, 2026 · score 43 · 14.0 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 | 46.1432, -118.5009 |
| Nearest City | Walla Walla (15 km) |
| Population Exposed | 180.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-15T20:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood-Warning_noaa_urn-oid-2_49_0_1_840_0_98793ad35270ccacbacf94017ca9d6d7 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Walla Walla, WA |
| Headline | Flood Warning issued March 15 at 1:06PM PDT until March 16 at 8:00AM PDT by NWS Pendleton OR |
| Expires | 2026-03-16T00:00:00-07:00 |
| SenderName | NWS Pendleton OR |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.98793ad35270ccacbacf94017ca9d6d7521f4970.001.1","noaa_urn:oid:2.49.0.1.840.0.7a29ed36a214dae5f54395ab7235c0dea3a52044.002.1"] |
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 Walla Walla?
Calamity.live data shows a weather event with CalamityScore 43/100, near Walla Walla (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.