Alert archive / North Dakota / Mesoscale Discussions / 2011

Mesoscale Discussions in North Dakota, August 2011

30 mesoscale discussions in August 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 August 2011. Tap one for its archive.

Mesoscale Discussions
30
Busiest day
August 1, 20117 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, Central Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jul 31, 8:16 PM CDTMesoscale DiscussionSPCAdams, Grant, Morton, Sioux89 min
Aug 1, 12:35 AM CDTMesoscale DiscussionSPCBarnes, Burleigh, Cass, Eddy, Emmons, Foster and 12 more85 min
Aug 1, 2:31 AM CDTMesoscale DiscussionSPCCass, Grand Forks, Griggs, Nelson, Steele, Traill and 1 more89 min
Aug 1, 1:33 PM CDTMesoscale DiscussionSPCAdams, Burleigh, Emmons, Grant, Hettinger, Kidder and 10 more57 min
Aug 1, 3:53 PM CDTMesoscale DiscussionSPCBarnes, Cass, Grand Forks, Griggs, Nelson, Ransom and 3 more67 min
Aug 1, 5:57 PM CDTMesoscale DiscussionSPCAdams, Barnes, Benson, Burleigh, Cavalier, Dickey and 23 more2 hr
Aug 1, 6:10 PM CDTMesoscale DiscussionSPCAdams, Barnes, Benson, Burleigh, Cavalier, Dickey and 23 more2 hr
Aug 1, 9:40 PM CDTMesoscale DiscussionSPCRichland, Sargent95 min
Aug 4, 3:24 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 4 more96 min
Aug 4, 7:40 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 2 more95 min
Aug 5, 1:05 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Emmons, Golden Valley, Grant and 5 more2 hr
Aug 5, 5:25 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Burleigh, Dunn, Golden Valley and 9 more2 hr
Aug 5, 6:26 PM CDTMesoscale DiscussionSPCBurleigh, Dickey, Eddy, Emmons, Foster, Grant and 10 more94 min
Aug 5, 10:08 PM CDTMesoscale DiscussionSPCBarnes, Cass, Dickey, Foster, Griggs, Kidder and 7 more2 hr
Aug 11, 1:49 PM CDTMesoscale DiscussionSPCAdams, Burleigh, Dickey, Emmons, Grant, Hettinger and 8 more86 min
Aug 11, 9:55 PM CDTMesoscale DiscussionSPCAdams, Bowman, Hettinger, Slope65 min
Aug 12, 1:18 PM CDTMesoscale DiscussionSPCBarnes, Cass, Dickey, Eddy, Foster, Grand Forks and 13 more57 min
Aug 12, 3:44 PM CDTMesoscale DiscussionSPCBarnes, Benson, Cass, Dickey, Eddy, Foster and 16 more91 min
Aug 12, 7:09 PM CDTMesoscale DiscussionSPCRichland96 min
Aug 14, 12:46 PM CDTMesoscale DiscussionSPCDickey, Emmons, LaMoure, Logan, McIntosh59 min
Aug 14, 6:56 PM CDTMesoscale DiscussionSPCBillings, Bowman, Golden Valley, Slope94 min
Aug 14, 8:42 PM CDTMesoscale DiscussionSPCEmmons, Grant, Logan, McIntosh, Morton, Sioux93 min
Aug 15, 3:22 AM CDTMesoscale DiscussionSPCBurleigh, McLean, Mercer, Morton, Oliver2 hr
Aug 15, 3:47 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Dunn, Grant, Hettinger and 7 more58 min
Aug 15, 9:37 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Burleigh, Dunn, Emmons and 20 more83 min
Aug 16, 2:05 AM CDTMesoscale DiscussionSPCBurke, Burleigh, Dickey, Divide, Emmons, Foster and 11 more115 min
Aug 18, 3:43 PM CDTMesoscale DiscussionSPCBarnes, Benson, Burleigh, Cass, Cavalier, Dickey and 27 more92 min
Aug 22, 7:35 PM CDTMesoscale DiscussionSPCBarnes, Cass, Dickey, Eddy, Foster, Griggs and 9 more85 min
Aug 27, 7:30 PM CDTMesoscale DiscussionSPCBurke, Divide, Dunn, McKenzie, McLean, Mountrail and 3 more90 min
Aug 28, 2:09 AM CDTMesoscale DiscussionSPCBurleigh, Dickey, Emmons, Grant, Hettinger, Kidder and 8 more66 min

By county

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

11 more counties

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. Warning verification from the Mesonet's Cow. Rebuilt daily.