Heat Advisories in Washington
255 heat advisories 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 heat advisories reaches back to 2005.
Heat Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Heat Advisories
- 255
- Busiest year
- 202528 heat advisories
- Average year
- 12over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not 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.
- Klickitat County71
- Walla Walla County71
- Columbia County65
- Yakima County63
- Benton County59
- Franklin County59
- Kittitas County45
- Asotin County43
- Garfield County43
- Okanogan County41
- Adams County38
- Chelan County38
- Grant County38
- Douglas County36
- Spokane County35
- Lincoln County34
- Whitman County29
- Pend Oreille County25
- Stevens County25
- Ferry County24
- Clark County15
- Skamania County15
- Cowlitz County13
- King County10
- Pierce County10
- Skagit County10
- Snohomish County10
- Whatcom County10
- Lewis County9
- Thurston County9
- Jefferson County8
- Kitsap County8
- Mason County8
- Grays Harbor County7
- Clallam County6
- San Juan County5
- Pacific County4
- Wahkiakum County4
- Island County3
The latest heat advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 24, 4:38 PM PDT | Heat Advisory | OTX | Asotin, Garfield | 52 hr |
| Aug 20, 10:30 AM PDT | Heat Advisory | PDT | Benton, Columbia, Franklin, Kittitas, Klickitat, Walla Walla and 1 more | 36 hr |
| Aug 20, 10:28 AM PDT | Heat Advisory | OTX | Adams, Asotin, Chelan, Douglas, Ferry, Garfield and 7 more | 57 hr |
| Aug 4, 1:37 PM PDT | Heat Advisory | SEW | Clallam, Grays Harbor, Island, Jefferson, King, Kitsap and 8 more | 3 days |
| Aug 2, 10:16 AM PDT | Heat Advisory | PQR | Clark, Cowlitz, Skamania | 4 days |
| Jul 20, 3:16 PM PDT | Heat Advisory | PDT | Benton, Columbia, Franklin, Klickitat, Walla Walla, Yakima | 3 days |
| Jul 20, 11:50 AM PDT | Heat Advisory | OTX | Adams, Asotin, Chelan, Douglas, Ferry, Garfield and 7 more | 4 days |
| Jul 19, 10:07 AM PDT | Heat Advisory | PQR | Clark, Cowlitz, Skamania | 3 days |
| Jul 19, 9:36 AM PDT | Heat Advisory | SEW | Clallam, Grays Harbor, Jefferson, King, Kitsap, Lewis and 6 more | 4 days |
| Jul 15, 12:04 PM PDT | Heat Advisory | OTX | Adams, Asotin, Chelan, Douglas, Garfield, Grant and 4 more | 33 hr |
| Jul 15, 11:00 AM PDT | Heat Advisory | PDT | Benton, Columbia, Franklin, Kittitas, Klickitat, Walla Walla and 1 more | 34 hr |
| Jun 20, 11:40 AM PDT | Heat Advisory | SEW | Clallam, Grays Harbor, Island, Jefferson, King, Kitsap and 8 more | 4 days |
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.