Alert archive / South Dakota / Mesoscale Discussions in 2005

Mesoscale Discussion 1528

June 28, 20058 counties in Nebraska; 10 counties in North Dakota; 47 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 28, 2005, 5:26 PM MDT for 8 counties in Nebraska; 10 counties in North Dakota; 47 counties in South Dakota. It was in force for 94 min.

The area

The outline as issued.

The facts

Issued: Jun 28, 2005, 5:26 PM MDT (23:26 UTC)
Expired: Jun 28, 2005, 7:00 PM MDT
In force: 94 min
Issued by: the Storm Prediction Center

All 65 counties

Adams County, ND, Billings County, ND, Bowman County, ND, Golden Valley County, ND, Grant County, ND, Hettinger County, ND, Morton County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Box Butte County, NE, Boyd County, NE, Brown County, NE, Cherry County, NE, Dawes County, NE, Keya Paha County, NE, Rock County, NE, Sheridan County, NE, Aurora County, SD, Beadle County, SD, Bennett County, SD, Bon Homme County, SD, Brule County, SD, Buffalo County, SD, Butte County, SD, Charles Mix County, SD, Clay County, SD, Corson County, SD, Custer County, SD, Davison County, SD, Dewey County, SD, Douglas County, SD, Fall River County, SD, Faulk County, SD, Gregory County, SD, Haakon County, SD, Hand County, SD, Hanson County, SD, Harding County, SD, Hughes County, SD, Hutchinson County, SD, Hyde County, SD, Jackson County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lyman County, SD, McCook County, SD, Meade County, SD, Mellette County, SD, Miner County, SD, Oglala Lakota County, SD, Pennington County, SD, Perkins County, SD, Potter County, SD, Sanborn County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Turner County, SD, Walworth County, SD, Yankton County, SD, Ziebach County, SD

The radar

The Rapid City radar (KUDX), 210 km from the middle of the area, began a volume at 23:26 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 nearest sounding before it

Rapid City, SD (KUNR), launched 12:00Z, 11.4 hours before the alert went out and 214 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 316 J/kg
Mixed-layer CIN: -447 J/kg
Mixed-layer LCL: 1145 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 190 m²/s²
0-3 km storm-relative helicity: 264 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.5

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.

Issued	Product	Office	Counties	Lasted
Jun 27, 6:53 PM MDT	Mesoscale Discussion	SPC	Arthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 13 more	2 hr
Jun 27, 7:16 PM MDT	Mesoscale Discussion	SPC	Adams, Antelope, Blaine, Boone, Boyd, Brown and 58 more	119 min
Jun 27, 7:35 PM MDT	Severe Thunderstorm Watch	SPC	Adams, Boone, Buffalo, Burt, Butler, Cass and 36 more	7 hr
Jun 27, 8:39 PM MDT	Mesoscale Discussion	SPC	Antelope, Blaine, Boyd, Brown, Cedar, Garfield and 8 more	66 min
Jun 27, 8:50 PM MDT	Severe Thunderstorm Watch	SPC	Blaine, Boyd, Brown, Garfield, Holt, Keya Paha and 4 more	6 hr
Jun 27, 10:37 PM MDT	Mesoscale Discussion	SPC	Adams, Blaine, Boone, Boyd, Brown, Buffalo and 56 more	83 min
Jun 27, 11:55 PM MDT	Severe Thunderstorm Watch	SPC	Antelope, Cedar, Dakota, Dixon, Knox, Pierce and 2 more	5 hr
Jun 28, 1:57 AM MDT	Mesoscale Discussion	SPC	Burt, Butler, Cass, Colfax, Cuming, Dakota and 17 more	93 min
Jun 28, 1:32 PM MDT	Mesoscale Discussion	SPC	Box Butte, Dawes, Morrill	118 min
Jun 28, 2:45 PM MDT	Tornado Watch	SPC	Box Butte, Cherry, Dawes, Sheridan	7 hr
Jun 28, 4:13 PM MDT	Mesoscale Discussion	SPC	Arthur, Banner, Chase, Cheyenne, Deuel, Dundy and 11 more	92 min
Jun 28, 11:09 AM MDT	Mesoscale Discussion	SPC	Dunn, McHenry, McKenzie, McLean, Mercer, Mountrail and 3 more	2 hr

Nearby

Mesoscale Discussions in South Dakota, 2005 Mesoscale Discussions in North Dakota, 2005 Mesoscale Discussions in Nebraska, 2005 Every mesoscale discussion in 2005

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.