Alert archive / Oregon / Columbia County
Weather alerts in Columbia County, Oregon, 2026
28 weather alerts in 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Columbia County and its neighbors
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Alerts
- 28
- Warnings
- 2
- Watches
- 2
- Advisories
- 23
- Busiest month
- January6 alerts
- Busiest day
- February 5, 20262 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
0 of 1 tornado warnings covering Columbia County in 2026 had a tornado report inside them.
Columbia County, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 1 | 0 | 100% | 0 | ||
| Severe thunderstorm warnings | 0 | 0 | ||||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2026
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Portland, OR: tornado warnings | 2 | 0 | 100% | 0 | ||
| NWS Portland, OR: severe thunderstorm warnings | 1 | 0 | 100% | 0 | ||
| NWS Portland, OR: flash flood warnings | 0 | 2 | 0% |
An office's figures cover every county it serves, including across state lines.
The year is still running; reports filed late and damage surveys can still change these figures.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
The alerts
Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 13, 2:56 PM PST | Dense Fog Advisory | PQR | 21 hr |
| Jan 15, 2:27 PM PST | Air Stagnation Advisory | PQR | 8 days |
| Jan 21, 12:08 PM PST | Cold Weather Advisory | PQR | 22 hr |
| Jan 22, 1:01 PM PST | Cold Weather Advisory | PQR | 22 hr |
| Jan 23, 12:51 PM PST | Cold Weather Advisory | PQR | 22 hr |
| Jan 24, 11:33 AM PST | Cold Weather Advisory | PQR | 23 hr |
| Feb 2, 9:56 AM PST | Air Stagnation Advisory | PQR | 5 days |
| Feb 5, 7:24 AM PST | Dense Fog Advisory | PQR | 4 hr |
| Feb 5, 11:04 AM PST | Dense Fog Advisory | PQR | 95 min |
| Feb 10, 1:05 AM PST | Dense Fog Advisory | PQR | 7 hr |
| Feb 15, 10:00 AM PST | Winter Weather Advisory | PQR | 4 days |
| Feb 25, 5:32 AM PST | Dense Fog Advisory | PQR | 6 hr |
| Mar 7, 10:48 AM PST | Winter Weather Advisory | PQR | 4 days |
| Mar 11, 1:21 PM PDT | Flood Watch | PQR | 69 hr |
| Apr 1, 9:44 PM PDT | Frost Advisory | PQR | 36 hr |
| Apr 7, 12:58 AM PDT | Frost Advisory | PQR | 32 hr |
| Apr 15, 12:39 AM PDT | Frost Advisory | PQR | 32 hr |
| Apr 16, 10:45 AM PDT | Frost Advisory | PQR | 22 hr |
| May 1, 10:37 AM PDT | Heat Advisory | PQR | 60 hr |
| Jun 9, 10:42 AM PDT | Extreme Heat Watch | PQR | 59 hr |
| Jun 11, 9:13 PM PDT | Heat Advisory | PQR | 4 days |
| Jun 20, 11:25 AM PDT | Heat Advisory | PQR | 3 days |
| Jul 19, 10:07 AM PDT | Heat Advisory | PQR | 3 days |
| Aug 2, 10:16 AM PDT | Heat Advisory | PQR | 4 days |
| Sep 3, 12:20 PM PDT | Tornado Warning | PQR | 25 min |
| Sep 3, 12:40 PM PDT | Special Weather Statement | PQR | 20 min |
| Sep 24, 9:47 AM PDT | Wind Advisory | PQR | 25 hr |
| Sep 25, 7:44 AM PDT | High Wind Warning | PQR | 4 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Tornado Warning | 1 |
| Special Weather Statement | 1 |
| Flooding | |
| Flood Watch | 1 |
| Winter | |
| Winter Weather Advisory | 2 |
| Heat | |
| Extreme Heat Watch | 1 |
| Heat Advisory | 5 |
| Cold | |
| Cold Weather Advisory | 4 |
| Frost Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 1 |
| Fog and smoke | |
| Air Stagnation Advisory | 2 |
| Dense Fog Advisory | 5 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive2025
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.