Severe Thunderstorm Warnings in Oregon
1,840 severe thunderstorm warnings since 1986. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Severe Thunderstorm Warnings
- 1,840
- Busiest year
- 1997102 severe thunderstorm warnings
- Average year
- 46over 40 years on file
Over time
By year
Before October 2007 these were issued for whole counties, and a storm crossing three counties was often three warnings; since then one polygon follows the storm. The count changed with the practice, not only with the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Malheur County258
- Umatilla County208
- Klamath County180
- Union County176
- Jackson County140
- Baker County132
- Deschutes County124
- Morrow County104
- Wallowa County101
- Jefferson County98
- Douglas County95
- Grant County86
- Wasco County86
- Clackamas County81
- Harney County81
- Crook County71
- Lake County66
- Linn County65
- Lane County64
- Gilliam County59
- Wheeler County59
- Marion County56
- Josephine County45
- Sherman County41
- Multnomah County39
- Curry County24
- Hood River County22
- Washington County17
- Coos County17
- Clatsop County12
- Columbia County11
- Yamhill County8
- Tillamook County8
- Benton County7
- Lincoln County7
- Polk County5
The latest severe thunderstorm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 16, 7:20 PM PDT | Severe Thunderstorm Warning | MFR | Jackson | 25 min |
| Sep 16, 7:15 PM PDT | Severe Thunderstorm Warning | MFR | Jackson | 30 min |
| Sep 16, 5:41 PM PDT | Severe Thunderstorm Warning | MFR | Jackson | 34 min |
| Aug 16, 3:43 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla, Union | 22 min |
| Aug 15, 5:47 PM PDT | Severe Thunderstorm Warning | PDT | Umatilla, Union, Wallowa | 28 min |
| Aug 15, 4:25 PM PDT | Severe Thunderstorm Warning | PDT | Union | 35 min |
| Aug 15, 3:06 PM PDT | Severe Thunderstorm Warning | BOI | Baker, Malheur | 39 min |
| Aug 15, 1:45 PM PDT | Severe Thunderstorm Warning | PDT | Wallowa | 30 min |
| Aug 14, 2:11 PM PDT | Severe Thunderstorm Warning | BOI | Baker | 34 min |
| Aug 14, 1:38 PM PDT | Severe Thunderstorm Warning | PDT | Union | 52 min |
| Aug 14, 1:36 PM PDT | Severe Thunderstorm Warning | BOI | Baker | 39 min |
| Jul 23, 4:27 PM PDT | Severe Thunderstorm Warning | BOI | Malheur | 33 min |
Nearby
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. Rebuilt daily.