Alert archive / South Dakota / Mesoscale Discussions in 2010

Mesoscale Discussion 686

May 24, 201012 counties in Nebraska; 9 counties in North Dakota; 33 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at May 24, 2010, 5:06 AM MDT for 12 counties in Nebraska; 9 counties in North Dakota; 33 counties in South Dakota. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
May 24, 2010, 5:06 AM MDT (11:06 UTC)
Expired
May 24, 2010, 7:00 AM MDT
In force
114 min
Issued by
the Storm Prediction Center
All 54 counties

Adams County, ND, Bowman County, ND, Emmons County, ND, Grant County, ND, Hettinger County, ND, Logan County, ND, McIntosh County, ND, Morton County, ND, Sioux County, ND, Arthur County, NE, Box Butte County, NE, Brown County, NE, Cherry County, NE, Dawes County, NE, Garden County, NE, Grant County, NE, Hooker County, NE, Keya Paha County, NE, McPherson County, NE, Sheridan County, NE, Thomas County, NE, Bennett County, SD, Brule County, SD, Buffalo County, SD, Butte County, SD, Campbell County, SD, Corson County, SD, Custer County, SD, Dewey County, SD, Edmunds County, SD, Fall River County, SD, Faulk County, SD, Gregory County, SD, Haakon County, SD, Harding County, SD, Hughes County, SD, Hyde County, SD, Jackson County, SD, Jones County, SD, Lawrence County, SD, Lyman County, SD, McPherson County, SD, Meade County, SD, Mellette County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Potter County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Walworth County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 115 km from the middle of the area, began a volume at 11:09 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 nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 11.1 hours before the alert went out and 246 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Aberdeen, SD at 00:00Z on 2010-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Aberdeen, SD at 00:00Z on 2010-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2036 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
3 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

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
May 23, 6:39 PM MDTMesoscale DiscussionSPCArthur, Blaine, Chase, Custer, Dawson, Frontier and 9 more66 min
May 23, 6:50 PM MDTSevere Thunderstorm WatchSPCArthur, Blaine, Boyd, Brown, Buffalo, Chase and 24 more4 hr
May 23, 7:12 PM MDTMesoscale DiscussionSPCDundy, Hitchcock, Red Willow93 min
May 23, 10:12 PM MDTMesoscale DiscussionSPCBlaine, Brown, Custer, Hayes, Holt, Hooker and 6 more2 hr
May 23, 10:39 PM MDTSevere Thunderstorm WatchSPCBox Butte, Dawes, Scotts Bluff, Sioux5 hr
May 23, 10:54 PM MDTSevere Thunderstorm WatchSPCArthur, Blaine, Boyd, Brown, Chase, Cherry and 21 more4 hr
May 24, 9:44 AM MDTMesoscale DiscussionSPCArthur, Banner, Chase, Cheyenne, Deuel, Dundy and 6 more91 min
May 24, 10:46 AM MDTTornado WatchSPCDundy, Hitchcock, Red Willow10 hr
May 24, 10:55 AM MDTMesoscale DiscussionSPCArthur, Box Butte, Cherry, Cheyenne, Dawes, Garden and 4 more95 min
May 24, 11:21 AM MDTTornado WatchSPCArthur, Banner, Box Butte, Chase, Cherry, Cheyenne and 18 more9 hr
May 24, 1:33 PM MDTTornado WatchSPCBlaine, Boyd, Brown, Custer, Garfield, Holt and 4 more5 hr
May 24, 2:33 PM MDTMesoscale DiscussionSPCArthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 11 more57 min
May 24, 2:47 PM MDTMesoscale DiscussionSPCChase, Deuel, Dundy, Frontier, Garden, Hayes and 5 more88 min
May 24, 5:03 PM MDTMesoscale DiscussionSPCAdams, Antelope, Blaine, Boone, Boyd, Brown and 21 more87 min
May 24, 12:37 AM MDTMesoscale DiscussionSPCAdams, Burleigh, Dickey, Emmons, Grant, Hettinger and 9 more83 min
May 24, 1:00 AM MDTSevere Thunderstorm WatchSPCBarnes, Burleigh, Cass, Dickey, Emmons, Foster and 16 more7 hr
May 24, 3:21 AM MDTMesoscale DiscussionSPCBarnes, Cass, Dickey, Emmons, Kidder, LaMoure and 8 more54 min
May 24, 12:37 PM MDTMesoscale DiscussionSPCBarnes, Cass, Grand Forks, Griggs, LaMoure, Nelson and 5 more53 min
May 24, 1:03 PM MDTTornado WatchSPCAdams, Barnes, Benson, Burleigh, Cass, Dickey and 24 more8 hr
May 23, 9:19 PM MDTMesoscale DiscussionSPCAurora, Beadle, Bennett, Brule, Buffalo, Davison and 18 more86 min

Nearby

Mesoscale Discussions in South Dakota, 2010Mesoscale Discussions in Nebraska, 2010Mesoscale Discussions in North Dakota, 2010Every mesoscale discussion in 2010

Sources

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