Alert archive / Washington / Mesoscale Discussions
Mesoscale Discussions in Washington, 2011
8 mesoscale discussions in 2011. 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 mesoscale discussions reaches back to 2003.
Mesoscale Discussions by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Mesoscale Discussions
- 8
- Busiest month
- February4 mesoscale discussions
- Busiest day
- February 28, 20112 mesoscale discussions
Over time
By month
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 | Counties | Lasted |
|---|---|---|---|---|
| Jan 11, 5:01 PM PST | Mesoscale Discussion | SPC | Island, Jefferson, King, Kitsap, Mason, Pierce and 4 more | 4 hr |
| Feb 15, 11:39 AM PST | Mesoscale Discussion | SPC | Pacific | 96 min |
| Feb 23, 8:30 AM PST | Mesoscale Discussion | SPC | Island, Kitsap, San Juan | 4 hr |
| Feb 27, 5:02 PM PST | Mesoscale Discussion | SPC | Chelan, Clark, Cowlitz, King, Lewis, Skagit and 3 more | 6 hr |
| Feb 28, 1:56 PM PST | Mesoscale Discussion | SPC | Skamania | 3 hr |
| Mar 15, 1:00 PM PDT | Mesoscale Discussion | SPC | Clark, Cowlitz, Lewis, Pacific, Skamania, Thurston and 1 more | 60 min |
| Jul 16, 1:04 PM PDT | Mesoscale Discussion | SPC | Asotin | 56 min |
| Aug 24, 3:28 PM PDT | Mesoscale Discussion | SPC | Clark, Klickitat, Skamania, Yakima | 77 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Skamania County4
- Clark County3
- Island County2
- King County2
- Kitsap County2
- Skagit County2
- Snohomish County2
- Thurston County2
- Whatcom County2
- Pacific County2
- Cowlitz County2
- Lewis County2
- Jefferson County1
- Mason County1
- Pierce County1
- San Juan County1
- Chelan County1
- Wahkiakum County1
- Asotin County1
- Klickitat County1
- Yakima County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.