Alert archive / South Dakota / Mesoscale Discussions in 2003
Mesoscale Discussion 1480
The Storm Prediction Center issued this mesoscale discussion at Jun 23, 2003, 9:10 PM CDT for 4 states. It was in force for 65 min.
The area
The outline as issued.
The facts
- Issued
- Jun 23, 2003, 9:10 PM CDT (02:10 UTC)
- Expired
- Jun 23, 2003, 10:15 PM CDT
- In force
- 65 min
- Issued by
- the Storm Prediction Center
All 54 counties
Cherokee County, IA, Dickinson County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Sioux County, IA, Brown County, MN, Chippewa County, MN, Cottonwood County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, McLeod County, MN, Meeker County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Redwood County, MN, Renville County, MN, Rock County, MN, Sibley County, MN, Swift County, MN, Watonwan County, MN, Wright County, MN, Yellow Medicine County, MN, Boyd County, NE, Aurora County, SD, Bon Homme County, SD, Brookings County, SD, Charles Mix County, SD, Clark County, SD, Clay County, SD, Codington County, SD, Davison County, SD, Deuel County, SD, Douglas County, SD, Grant County, SD, Hamlin County, SD, Hanson County, SD, Hutchinson 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), 30 km from the middle of the area, began a volume at 02:11 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 nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.2 hours before the alert went out and 168 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.
- Mixed-layer CAPE
- 1534 J/kg
- Mixed-layer CIN
- -21 J/kg
- Mixed-layer LCL
- 996 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 120 m²/s²
- 0-3 km storm-relative helicity
- 407 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 23, 8:08 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 28 more | 67 min |
| Jun 23, 8:55 PM CDT | Tornado Watch | SPC | Audubon, Buena Vista, Calhoun, Carroll, Cass, Cerro Gordo and 24 more | 4 hr |
| Jun 23, 10:38 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Humboldt, Ida and 9 more | 67 min |
| Jun 23, 10:50 PM CDT | Tornado Watch | SPC | Plymouth | 5 hr |
| Jun 23, 11:45 PM CDT | Severe Thunderstorm Watch | SPC | Lyon, O'Brien, Osceola, Sioux | 6 hr |
| Jun 24, 12:35 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee and 24 more | 5 hr |
| Jun 24, 1:52 AM CDT | Mesoscale Discussion | SPC | Plymouth | 53 min |
| Jun 24, 2:05 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Allamakee, Benton, Black Hawk, Boone and 39 more | 5 hr |
| Jun 24, 2:44 AM CDT | Mesoscale Discussion | SPC | Lyon, Osceola, Sioux | 2 hr |
| Jun 24, 3:09 AM CDT | Mesoscale Discussion | SPC | Boone, Buena Vista, Calhoun, Carroll, Cerro Gordo, Cherokee and 12 more | 96 min |
| Jun 24, 11:43 AM CDT | Mesoscale Discussion | SPC | Adams, Cass, Fremont, Harrison, Mills, Montgomery and 3 more | 2 hr |
| Jun 24, 2:15 PM CDT | Tornado Watch | SPC | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux | 8 hr |
| Jun 24, 3:56 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Cass, Fremont, Guthrie and 6 more | 64 min |
| Jun 24, 5:25 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Audubon, Boone, Buena Vista, Butler, Calhoun and 30 more | 5 hr |
| Jun 24, 5:59 PM CDT | Mesoscale Discussion | SPC | Lyon, O'Brien, Osceola, Plymouth, Sioux | 61 min |
| Jun 24, 1:21 AM CDT | Mesoscale Discussion | SPC | Big Stone, Lac qui Parle, Stevens, Yellow Medicine | 114 min |
| Jun 24, 4:20 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Anoka, Benton, Big Stone, Carlton, Chippewa and 21 more | 6 hr |
| Jun 24, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | Blue Earth, Brown, Carver, Dakota, Dodge, Faribault and 18 more | 5 hr |
| Jun 23, 8:17 PM CDT | Mesoscale Discussion | SPC | Adams, Antelope, Boone, Buffalo, Butler, Clay and 37 more | 58 min |
| Jun 23, 8:20 PM CDT | Tornado Watch | SPC | Adams, Buffalo, Clay, Fillmore, Franklin, Furnas and 11 more | 3 hr |
| Jun 23, 8:34 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Deuel, Kimball | 86 min |
| Jun 23, 9:10 PM CDT | Tornado Watch | SPC | Banner, Box Butte, Cheyenne, Deuel, Garden, Kimball and 3 more | 4 hr |
| Jun 23, 10:50 PM CDT | Tornado Watch | SPC | Arthur, Blaine, Chase, Custer, Dawson, Frontier and 10 more | 5 hr |
| Jun 23, 11:08 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Cheyenne, Garden, Grant, Kimball and 3 more | 67 min |
| Jun 24, 12:50 AM CDT | Severe Thunderstorm Watch | SPC | Banner, Cheyenne, Deuel, Garden, Kimball, Morrill and 1 more | 3 hr |
| Jun 24, 1:29 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Boone, Boyd, Brown, Buffalo and 22 more | 3 hr |
| Jun 24, 3:47 PM CDT | Mesoscale Discussion | SPC | Chase, Dundy, Hayes, Hitchcock | 88 min |
| Jun 24, 3:55 PM CDT | Severe Thunderstorm Watch | SPC | Chase, Dawson, Dundy, Frontier, Furnas, Gosper and 3 more | 6 hr |
| Jun 24, 6:30 PM CDT | Mesoscale Discussion | SPC | Buffalo, Dawson, Dundy, Frontier, Furnas, Gosper and 7 more | 2 hr |
| Jun 24, 6:28 PM CDT | Mesoscale Discussion | SPC | Beadle, Brown, Buffalo, Campbell, Clark, Day and 18 more | 92 min |
Nearby
Mesoscale Discussions in South Dakota, 2003Mesoscale Discussions in Minnesota, 2003Mesoscale Discussions in Iowa, 2003Every mesoscale discussion in 2003
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.