This alert expired on 15 March 2026 at 01:15 UTC. It is kept here as a record.
It is the 4th strongest of the 9 detections recorded within 20 km of this point since 14 March 2026. 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 14 at 6:07AM PDT until March 15 at 7:29PM PDT by NWS Pendleton OR
An estimated 96,782 people live within 50 km of this point.
Nearby, since 14 March 2026
- March 14, 2026 · score 43 · 8.6 km
- March 14, 2026 · score 43 · 18.7 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, at 79 % 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) | 39 / 100 |
| Our confidence | 79% |
| Coordinates | 46.4585, -117.5430 |
| Nearest City | Lewiston (40 km) |
| Population Exposed | 96.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-14T20:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood-Warning_noaa_urn-oid-2_49_0_1_840_0_4ceb5a15c0b2f4bbe90fe57d3372db7f |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Walla Walla, WA; Umatilla, OR; Whitman, WA and 2 more areas |
| Headline | Flood Warning issued March 14 at 6:07AM PDT until March 15 at 7:29PM PDT by NWS Pendleton OR |
| Expires | 2026-03-14T18:15:00-07:00 |
| SenderName | NWS Pendleton OR |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4ceb5a15c0b2f4bbe90fe57d3372db7fc7e66c64.001.1","noaa_urn:oid:2.49.0.1.840.0.ffe536065ab80c7c47c78a42d8469f4114a62614.001.1","noaa_urn:oid:2.49.0.1.840.0.1e50bbfdd87d73a847d461dca78c1f71767ba65b.001.1","noaa_urn:oid:2.49.0.1.840.0.0f431884e32beddca362ca7e8ce6b04c94131cd9.001.1","noaa_urn:oid:2.49.0.1.840.0.e3329e86dae8becf56d9206bcdb3c1693979a64d.001.1","noaa_urn:oid:2.49.0.1.840.0.3636b800fd561d6800866f80a522dde18b97e13a.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 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 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.