Alert archive / Oregon / Gilliam County
Weather alerts in Gilliam County, Oregon, 2012
72 weather alerts in 2012, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered this county.
Gilliam County and its neighbors
Each county as a circle sized by its count in 2012. Tap one for its archive.
- Alerts
- 72
- Warnings
- 15
- Watches
- 13
- Advisories
- 38
- Busiest month
- December16 alerts
- Busiest day
- February 24, 20123 alerts
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
Gilliam County, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Tornado warnings | 0 | 0 | ||||
| Severe thunderstorm warnings | 4 | 2 | 50% | 0 | ||
| Flash flood warnings | 1 | 0 | 100% | 0 |
Each office's whole area, 2012
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Pendleton, OR: tornado warnings | 1 | 0 | 100% | 0 | ||
| NWS Pendleton, OR: severe thunderstorm warnings | 35 | 25 | 29% | 72 | 67% | 21 min |
| NWS Pendleton, OR: flash flood warnings | 6 | 0 | 100% | 5 | 0% |
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 15, 2:59 PM PST | Winter Storm Watch | PDT | 30 hr |
| Jan 16, 4:05 AM PST | Winter Storm Warning | PDT | 59 hr |
| Jan 18, 2:47 PM PST | Winter Storm Watch | PDT | 5 hr |
| Jan 18, 7:58 PM PST | Winter Storm Warning | PDT | 30 hr |
| Jan 18, 7:58 PM PST | Winter Weather Advisory | PDT | 26 hr |
| Jan 20, 3:22 AM PST | Freezing Rain Advisory | PDT | 22 hr |
| Jan 23, 2:37 PM PST | Winter Weather Advisory | PDT | 32 hr |
| Jan 26, 9:40 AM PST | Wind Advisory | PDT | 6 hr |
| Feb 2, 9:25 AM PST | Air Stagnation Advisory | PDT | 5 days |
| Feb 3, 6:26 AM PST | Freezing Fog Advisory | PDT | 6 hr |
| Feb 4, 6:30 PM PST | Freezing Fog Advisory | PDT | 17 hr |
| Feb 5, 11:27 AM PST | Freezing Fog Advisory | PDT | 47 hr |
| Feb 9, 11:01 PM PST | Dense Fog Advisory | PDT | 13 hr |
| Feb 20, 2:38 PM PST | High Wind Watch | PDT | 14 hr |
| Feb 21, 4:28 AM PST | High Wind Warning | PDT | 39 hr |
| Feb 23, 7:01 PM PST | High Wind Watch | PDT | 10 hr |
| Feb 24, 4:31 AM PST | High Wind Warning | PDT | 40 hr |
| Feb 24, 4:53 AM PST | Winter Weather Advisory | PDT | 42 hr |
| Mar 4, 10:15 PM PST | Wind Advisory | PDT | 21 hr |
| Mar 11, 2:32 PM PDT | High Wind Warning | PDT | 41 hr |
| Mar 11, 2:32 PM PDT | Wind Advisory | PDT | 53 hr |
| Mar 14, 2:55 PM PDT | Wind Advisory | PDT | 18 hr |
| Mar 19, 3:12 PM PDT | Winter Weather Advisory | PDT | 66 hr |
| Mar 29, 1:34 PM PDT | Flood Watch | PDT | 43 hr |
| Mar 29, 7:44 PM PDT | Wind Advisory | PDT | 15 hr |
| Mar 30, 9:30 PM PDT | Wind Advisory | PDT | 11 hr |
| Apr 1, 3:44 AM PDT | Wind Advisory | PDT | 11 hr |
| Apr 2, 2:20 PM PDT | Winter Weather Advisory | PDT | 48 hr |
| Apr 23, 6:23 PM PDT | Severe Thunderstorm Warning | PDT | 65 min |
| Apr 23, 7:32 PM PDT | Special Weather Statement | PDT | 58 min |
| Jun 4, 12:54 PM PDT | Flood Watch | PDT | 25 hr |
| Jun 9, 3:47 AM PDT | Wind Advisory | PDT | 18 hr |
| Jun 17, 3:38 AM PDT | Wind Advisory | PDT | 19 hr |
| Jul 8, 3:21 PM PDT | Mesoscale Discussion | SPC | 54 min |
| Jul 9, 4:46 PM PDT | Mesoscale Discussion | SPC | 59 min |
| Jul 14, 5:23 PM PDT | Mesoscale Discussion | SPC | 67 min |
| Jul 14, 7:07 PM PDT | Severe Thunderstorm Warning | PDT | 34 min |
| Jul 15, 12:42 PM PDT | Wind Advisory | PDT | 7 hr |
| Jul 15, 6:22 PM PDT | Flash Flood Watch | PDT | 5 days |
| Jul 17, 3:51 PM PDT | Mesoscale Discussion | SPC | 54 min |
| Jul 17, 4:42 PM PDT | Severe Thunderstorm Warning | PDT | 63 min |
| Jul 17, 5:43 PM PDT | Flash Flood Warning | PDT | 108 min |
| Jul 17, 5:48 PM PDT | Severe Thunderstorm Warning | PDT | 42 min |
| Jul 19, 4:11 PM PDT | Mesoscale Discussion | SPC | 94 min |
| Aug 17, 2:22 PM PDT | Heat Advisory | PDT | 20 hr |
| Oct 3, 1:15 PM PDT | Freeze Warning | PDT | 44 hr |
| Oct 15, 2:39 AM PDT | Wind Advisory | PDT | 41 hr |
| Nov 11, 3:27 AM PST | Winter Weather Advisory | PDT | 39 hr |
| Nov 14, 7:24 PM PST | Dense Fog Advisory | PDT | 16 hr |
| Nov 17, 6:22 AM PST | Dense Fog Advisory | PDT | 4 hr |
| Nov 17, 2:06 PM PST | High Wind Watch | PDT | 24 hr |
| Nov 18, 2:10 PM PST | High Wind Warning | PDT | 33 hr |
| Nov 20, 8:03 PM PST | Wind Advisory | PDT | 20 hr |
| Nov 26, 1:46 PM PST | Freezing Fog Advisory | PDT | 49 hr |
| Nov 27, 3:11 PM PST | Winter Weather Advisory | PDT | 26 hr |
| Nov 30, 1:59 PM PST | High Wind Watch | PDT | 26 hr |
| Dec 1, 2:13 PM PST | Wind Advisory | PDT | 30 hr |
| Dec 3, 2:11 PM PST | Wind Advisory | PDT | 20 hr |
| Dec 5, 2:42 PM PST | Winter Weather Advisory | PDT | 3 days |
| Dec 7, 8:54 AM PST | Wind Advisory | PDT | 13 hr |
| Dec 14, 3:15 PM PST | Winter Weather Advisory | PDT | 32 hr |
| Dec 15, 2:45 PM PST | High Wind Watch | PDT | 12 hr |
| Dec 15, 2:46 PM PST | Blizzard Watch | PDT | 12 hr |
| Dec 16, 2:41 AM PST | Wind Advisory | PDT | 37 hr |
| Dec 16, 3:08 AM PST | Blizzard Warning | PDT | 30 hr |
| Dec 18, 2:58 PM PST | High Wind Watch | PDT | 5 hr |
| Dec 18, 3:48 PM PST | Winter Weather Advisory | PDT | 47 hr |
| Dec 18, 8:01 PM PST | High Wind Warning | PDT | 42 hr |
| Dec 22, 4:03 PM PST | Winter Weather Advisory | PDT | 44 hr |
| Dec 23, 2:36 PM PST | Winter Storm Watch | PDT | 24 hr |
| Dec 24, 2:55 PM PST | Winter Storm Warning | PDT | 43 hr |
| Dec 24, 2:55 PM PST | Winter Weather Advisory | PDT | 43 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 | |
| Severe Thunderstorm Warning | 4 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 1 |
| Flooding | |
| Flash Flood Warning | 1 |
| Flash Flood Watch | 1 |
| Flood Watch | 2 |
| Winter | |
| Blizzard Warning | 1 |
| Winter Storm Warning | 3 |
| Blizzard Watch | 1 |
| Winter Storm Watch | 3 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 12 |
| Heat | |
| Heat Advisory | 1 |
| Cold | |
| Freeze Warning | 1 |
| Wind and dust | |
| High Wind Warning | 5 |
| High Wind Watch | 6 |
| Wind Advisory | 16 |
| Fog and smoke | |
| Air Stagnation Advisory | 1 |
| Dense Fog Advisory | 3 |
| Freezing Fog Advisory | 4 |
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordForecastThe radar archive20112013
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.