Alert archive / Washington / Mesoscale Discussions / 2008

Mesoscale Discussions in Washington, December 2008

10 mesoscale discussions in December 2008. 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 December 2008. Tap one for its archive.

Mesoscale Discussions
10
Busiest day
December 20, 20082 mesoscale discussions

Over time

By day

Days in UTC, the clock the archive keeps.

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.

IssuedProductOfficeCountiesLasted
Dec 6, 4:20 AM PSTMesoscale DiscussionSPCPend Oreille, Spokane4 hr
Dec 14, 3:46 AM PSTMesoscale DiscussionSPCClark4 hr
Dec 17, 8:33 AM PSTMesoscale DiscussionSPCChelan, Douglas, Ferry, King, Lewis, Okanogan and 7 more6 hr
Dec 20, 9:39 AM PSTMesoscale DiscussionSPCClallam, Grays Harbor, Jefferson, Mason4 hr
Dec 20, 3:32 PM PSTMesoscale DiscussionSPCClark, Cowlitz, Lewis, Pierce, Skamania, Thurston and 1 more4 hr
Dec 20, 8:25 PM PSTMesoscale DiscussionSPCChelan, Clallam, Clark, Cowlitz, Grays Harbor, Island and 17 more4 hr
Dec 21, 3:17 PM PSTMesoscale DiscussionSPCClark, Cowlitz, Lewis, Skamania4 hr
Dec 27, 12:26 PM PSTMesoscale DiscussionSPCChelan, Ferry, Okanogan, Pend Oreille, Skamania, Stevens3 hr
Dec 29, 9:53 AM PSTMesoscale DiscussionSPCBenton, Chelan, Douglas, Grant, King, Kittitas and 4 more4 hr
Dec 29, 12:07 PM PSTMesoscale DiscussionSPCLincoln, Spokane4 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

Nearby

Alerts in force nowTornadoes on recordThe radar archive20072009

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.