Alert archive / South Dakota / Mesoscale Discussions in 2008

Mesoscale Discussion 1836

July 21, 2008Plymouth County, Sioux County, Iowa; Cedar County, Dakota County, Dixon County, Nebraska; 18 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 21, 2008, 4:01 AM CDT for Plymouth County, Sioux County, Iowa; Cedar County, Dakota County, Dixon County, Nebraska; 18 counties in South Dakota. It was in force for 89 min.

The area

The outline as issued.

The facts

Issued
Jul 21, 2008, 4:01 AM CDT (09:01 UTC)
Expired
Jul 21, 2008, 5:30 AM CDT
In force
89 min
Issued by
the Storm Prediction Center
All 23 counties

Plymouth County, IA, Sioux County, IA, Cedar County, NE, Dakota County, NE, Dixon County, NE, Beadle County, SD, Bon Homme County, SD, Clay County, SD, Davison County, SD, Douglas 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, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 44 km from the middle of the area, began a volume at 09:00 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 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
Jul 20, 8:58 PM CDTSevere Thunderstorm WatchSPCBuena Vista, Cherokee, Crawford, Harrison, Ida, Monona and 5 more7 hr
Jul 20, 10:17 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Boone and 50 more2 hr
Jul 20, 11:10 PM CDTMesoscale DiscussionSPCHarrison, Monona95 min
Jul 20, 11:25 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 54 more8 hr
Jul 21, 3:10 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 54 more95 min
Jul 21, 4:21 AM CDTSevere Thunderstorm WatchSPCBenton, Cedar, Des Moines, Henry, Iowa, Jefferson and 9 more8 hr
Jul 21, 1:48 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Cass, Clarke, Davis and 23 more87 min
Jul 21, 5:10 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Audubon, Cass, Clarke and 32 more7 hr
Jul 20, 7:58 PM CDTMesoscale DiscussionSPCAntelope, Blaine, Boyd, Brown, Cedar, Cherry and 14 more92 min

Nearby

Mesoscale Discussions in South Dakota, 2008Mesoscale Discussions in Nebraska, 2008Mesoscale Discussions in Iowa, 2008Every mesoscale discussion in 2008

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.