Alert archive / South Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1231

June 21, 20076 counties in Iowa; 7 counties in Minnesota; 25 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 21, 2007, 9:10 AM CDT for 6 counties in Iowa; 7 counties in Minnesota; 25 counties in South Dakota. It was in force for 35 min.

The area

The outline as issued.

The facts

Issued
Jun 21, 2007, 9:10 AM CDT (14:10 UTC)
Expired
Jun 21, 2007, 9:45 AM CDT
In force
35 min
Issued by
the Storm Prediction Center
All 38 counties

Clay County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Cottonwood County, MN, Jackson County, MN, Lincoln County, MN, Murray County, MN, Nobles County, MN, Pipestone County, MN, Rock County, MN, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Gregory County, SD, Hanson County, SD, Hutchinson County, SD, Jerauld County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 67 km from the middle of the area, began a volume at 14:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 20, 11:30 PM CDTMesoscale DiscussionSPCHoward, Mitchell, Winnebago, Worth90 min
Jun 21, 4:27 AM CDTSevere Thunderstorm WatchSPCAllamakee, Howard, Mitchell, Winneshiek8 hr
Jun 21, 9:38 AM CDTSevere Thunderstorm WatchSPCBuena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more6 hr
Jun 21, 9:57 AM CDTMesoscale DiscussionSPCAllamakee, Cedar, Clayton, Clinton, Delaware, Des Moines and 10 more33 min
Jun 21, 11:55 AM CDTMesoscale DiscussionSPCAllamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 16 more50 min
Jun 21, 11:59 AM CDTSevere Thunderstorm WatchSPCAllamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 36 more8 hr
Jun 21, 2:13 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 50 more62 min
Jun 21, 3:15 PM CDTMesoscale DiscussionSPCCherokee, Clay, Dickinson, Ida, Lyon, O'Brien and 4 more30 min
Jun 21, 3:25 PM CDTMesoscale DiscussionSPCAdair, Allamakee, Audubon, Benton, Black Hawk, Boone and 52 more35 min
Jun 21, 3:55 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Audubon, Cass, Cedar, Clarke and 26 more3 hr
Jun 21, 5:42 PM CDTMesoscale DiscussionSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 25 more93 min
Jun 21, 6:47 PM CDTSevere Thunderstorm WatchSPCAppanoose, Cedar, Clayton, Clinton, Davis, Delaware and 18 more4 hr
Jun 20, 8:28 PM CDTMesoscale DiscussionSPCBlue Earth, Dodge, Goodhue, Le Sueur, Olmsted, Rice and 2 more92 min
Jun 21, 2:10 AM CDTMesoscale DiscussionSPCBig Stone, Lac qui Parle, Stevens, Traverse, Yellow Medicine95 min
Jun 21, 2:29 AM CDTSevere Thunderstorm WatchSPCBig Stone, Traverse, Wilkin8 hr
Jun 21, 3:55 AM CDTMesoscale DiscussionSPCBig Stone, Blue Earth, Brown, Carver, Chippewa, Cottonwood and 32 more95 min
Jun 21, 7:14 AM CDTMesoscale DiscussionSPCBlue Earth, Brown, Chippewa, Cottonwood, Faribault, Jackson and 11 more91 min
Jun 21, 11:08 AM CDTMesoscale DiscussionSPCAnoka, Benton, Brown, Carver, Chippewa, Dakota and 25 more67 min
Jun 21, 5:34 AM CDTMesoscale DiscussionSPCBrown, Campbell, Clark, Codington, Corson, Day and 10 more86 min
Jun 21, 2:43 PM CDTMesoscale DiscussionSPCCorson, Dewey, Harding, Meade, Perkins, Ziebach92 min
Jun 21, 4:37 PM CDTTornado WatchSPCBennett, Butte, Custer, Dewey, Fall River, Haakon and 12 more7 hr

Nearby

Mesoscale Discussions in South Dakota, 2007Mesoscale Discussions in Minnesota, 2007Mesoscale Discussions in Iowa, 2007Every mesoscale discussion in 2007

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.