Alert archive / Washington / Columbia County
Weather alerts in Columbia County, Washington, 2015
75 weather alerts in 2015, 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 2015. Tap one for its archive.
- Alerts
- 75
- Warnings
- 14
- Watches
- 7
- Advisories
- 51
- Busiest month
- December23 alerts
- Busiest day
- February 5, 20154 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Columbia County, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 3 | 3 | 0% | 0 | ||
| Flash flood warnings | 0 | 0 |
Each office's whole area, 2015
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pendleton, OR: severe thunderstorm warnings | 10 | 10 | 0% | 29 | 55% | 30 min |
| NWS Pendleton, OR: flash flood warnings | 9 | 3 | 67% | 5 | 100% | 19 min |
An office's figures cover every county it serves, including across state lines.
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 2, 6:48 PM PST | Winter Storm Watch | PDT | 9 hr |
| Jan 3, 4:17 AM PST | Winter Storm Warning | PDT | 48 hr |
| Jan 3, 4:17 AM PST | Winter Weather Advisory | PDT | 42 hr |
| Jan 4, 3:51 AM PST | Wind Advisory | PDT | 29 hr |
| Jan 7, 2:39 PM PST | Dense Fog Advisory | PDT | 45 hr |
| Jan 11, 10:44 PM PST | Dense Fog Advisory | PDT | 13 hr |
| Jan 21, 2:57 AM PST | Freezing Fog Advisory | PDT | 32 hr |
| Jan 25, 10:15 AM PST | Dense Fog Advisory | PDT | 50 hr |
| Jan 28, 3:57 AM PST | Dense Fog Advisory | PDT | 9 hr |
| Jan 28, 1:15 PM PST | Dense Fog Advisory | PDT | 12 hr |
| Feb 2, 7:36 AM PST | Dense Fog Advisory | PDT | 3 hr |
| Feb 4, 6:58 PM PST | Dense Fog Advisory | PDT | 15 hr |
| Feb 5, 3:01 AM PST | High Wind Watch | PDT | 12 hr |
| Feb 5, 3:01 AM PST | Wind Advisory | PDT | 40 hr |
| Feb 5, 2:36 PM PST | High Wind Warning | PDT | 28 hr |
| Feb 6, 8:28 PM PST | High Wind Warning | PDT | 18 hr |
| Feb 6, 8:28 PM PST | Wind Advisory | PDT | 21 hr |
| Feb 13, 4:42 AM PST | Dense Fog Advisory | PDT | 5 hr |
| Mar 23, 3:45 AM PDT | Winter Weather Advisory | PDT | 37 hr |
| Mar 24, 6:57 AM PDT | Wind Advisory | PDT | 5 hr |
| Mar 27, 10:02 PM PDT | Wind Advisory | PDT | 15 hr |
| Apr 14, 8:47 AM PDT | Freeze Warning | PDT | 24 hr |
| Apr 15, 8:47 AM PDT | Freeze Warning | PDT | 24 hr |
| May 13, 1:36 AM PDT | Areal Flood Advisory | PDT | 12 hr |
| May 21, 9:39 AM PDT | Flash Flood Watch | PDT | 35 hr |
| May 21, 12:18 PM PDT | Special Weather Statement | PDT | 27 min |
| May 22, 12:30 PM PDT | Areal Flood Advisory | PDT | 3 hr |
| May 31, 7:36 PM PDT | Severe Thunderstorm Warning | PDT | 54 min |
| May 31, 7:55 PM PDT | Severe Thunderstorm Warning | PDT | 65 min |
| Jun 24, 2:47 PM PDT | Heat Advisory | PDT | 9 days |
| Jun 27, 6:36 PM PDT | Special Weather Statement | PDT | 24 min |
| Jun 28, 9:51 PM PDT | Severe Thunderstorm Warning | PDT | 54 min |
| Jun 29, 12:54 PM PDT | Mesoscale Discussion | SPC | 96 min |
| Jun 30, 2:25 PM PDT | Heat Advisory | PDT | 3 days |
| Jul 9, 2:05 PM PDT | Flash Flood Watch | PDT | 32 hr |
| Jul 11, 2:32 AM PDT | Flash Flood Watch | PDT | 19 hr |
| Jul 30, 3:44 PM PDT | Heat Advisory | PDT | 3 days |
| Aug 13, 11:50 AM PDT | Wind Advisory | PDT | 17 hr |
| Aug 14, 5:01 AM PDT | Blowing Dust Advisory | PDT | 17 hr |
| Aug 27, 2:46 PM PDT | Wind Advisory | PDT | 51 hr |
| Aug 28, 3:00 AM PDT | Blowing Dust Advisory | PDT | 39 hr |
| Oct 30, 11:54 AM PDT | Wind Advisory | PDT | 7 hr |
| Oct 30, 10:24 PM PDT | Wind Advisory | PDT | 21 hr |
| Nov 8, 2:13 PM PST | Winter Weather Advisory | PDT | 38 hr |
| Nov 16, 9:29 AM PST | Winter Weather Advisory | PDT | 19 hr |
| Nov 16, 1:46 PM PST | High Wind Warning | PDT | 38 hr |
| Nov 18, 4:23 AM PST | High Wind Warning | PDT | 96 min |
| Nov 18, 2:47 PM PST | Winter Weather Advisory | PDT | 30 hr |
| Nov 22, 1:36 AM PST | Freezing Fog Advisory | PDT | 45 hr |
| Nov 23, 1:00 PM PST | Winter Weather Advisory | PDT | 37 hr |
| Nov 23, 1:00 PM PST | Freezing Rain Advisory | PDT | 21 hr |
| Nov 27, 5:39 PM PST | Air Stagnation Advisory | PDT | 7 days |
| Dec 1, 4:04 AM PST | Winter Weather Advisory | PDT | 30 hr |
| Dec 2, 3:16 PM PST | Winter Weather Advisory | PDT | 19 hr |
| Dec 3, 8:27 AM PST | Wind Advisory | PDT | 15 hr |
| Dec 4, 3:25 PM PST | Wind Advisory | PDT | 43 hr |
| Dec 6, 5:08 AM PST | High Wind Warning | PDT | 5 hr |
| Dec 6, 2:56 PM PST | Wind Advisory | PDT | 28 hr |
| Dec 8, 1:38 PM PST | Wind Advisory | PDT | 22 hr |
| Dec 10, 2:52 AM PST | Wind Advisory | PDT | 6 hr |
| Dec 11, 4:13 AM PST | Winter Storm Watch | PDT | 34 hr |
| Dec 11, 7:44 PM PST | Winter Storm Warning | PDT | 45 hr |
| Dec 12, 7:25 PM PST | Wind Advisory | PDT | 11 hr |
| Dec 13, 4:31 PM PST | Winter Weather Advisory | PDT | 22 hr |
| Dec 15, 3:48 AM PST | Winter Storm Watch | PDT | 24 hr |
| Dec 16, 4:07 AM PST | Winter Weather Advisory | PDT | 58 hr |
| Dec 16, 1:00 PM PST | Dense Fog Advisory | PDT | 5 hr |
| Dec 19, 6:34 AM PST | Freezing Fog Advisory | PDT | 4 hr |
| Dec 19, 2:57 PM PST | Winter Weather Advisory | PDT | 28 hr |
| Dec 19, 6:15 PM PST | Dense Fog Advisory | PDT | 9 hr |
| Dec 20, 2:40 PM PST | Wind Advisory | PDT | 110 min |
| Dec 20, 2:59 PM PST | Winter Storm Warning | PDT | 43 hr |
| Dec 20, 4:30 PM PST | High Wind Warning | PDT | 28 hr |
| Dec 22, 2:50 PM PST | Winter Weather Advisory | PDT | 37 hr |
| Dec 23, 2:44 PM PST | Air Stagnation Advisory | PDT | 21 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 3 |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 2 |
| Flooding | |
| Flash Flood Watch | 3 |
| Areal Flood Advisory | 2 |
| Winter | |
| Winter Storm Warning | 3 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 12 |
| Heat | |
| Heat Advisory | 3 |
| Cold | |
| Freeze Warning | 2 |
| Wind and dust | |
| High Wind Warning | 6 |
| High Wind Watch | 1 |
| Blowing Dust Advisory | 2 |
| Wind Advisory | 16 |
| Fog and smoke | |
| Air Stagnation Advisory | 2 |
| Dense Fog Advisory | 10 |
| Freezing Fog Advisory | 3 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20142016
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.