Alert archive / South Dakota / Severe Thunderstorm Watches in 2003
Severe Thunderstorm Watch 629
The Storm Prediction Center issued this severe thunderstorm watch at Jul 3, 2003, 9:40 PM CDT for 4 states. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 3, 2003, 9:40 PM CDT (02:40 UTC)
- Expired
- Jul 4, 2003, 4:00 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 134 counties
Boone County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Greene County, IA, Hamilton County, IA, Hancock County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Sac County, IA, Sioux County, IA, Story County, IA, Webster County, IA, Woodbury County, IA, Wright County, IA, Big Stone County, MN, Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Cottonwood County, MN, Douglas County, MN, Faribault County, MN, Grant County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Lincoln County, MN, Lyon County, MN, Martin County, MN, Meeker County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Pope County, MN, Redwood County, MN, Renville County, MN, Rock County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Watonwan County, MN, Yellow Medicine County, MN, Antelope County, NE, Blaine County, NE, Boyd County, NE, Brown County, NE, Burt County, NE, Cedar County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Garfield County, NE, Holt County, NE, Keya Paha County, NE, Knox County, NE, Loup County, NE, Madison County, NE, Pierce County, NE, Rock County, NE, Stanton County, NE, Thomas County, NE, Thurston County, NE, Wayne County, NE, Wheeler County, NE, Aurora County, SD, Beadle County, SD, Bon Homme County, SD, Brookings County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Campbell County, SD, Charles Mix County, SD, Clark County, SD, Clay County, SD, Codington County, SD, Corson County, SD, Davison County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Douglas County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Gregory County, SD, Haakon County, SD, Hamlin County, SD, Hand County, SD, Hanson County, SD, Hughes County, SD, Hutchinson County, SD, Hyde County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, Lyman County, SD, Marshall County, SD, McCook County, SD, McPherson County, SD, Mellette County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Potter County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Todd County, SD, Tripp County, SD, Turner County, SD, Union County, SD, Walworth County, SD, Yankton County, SD, Ziebach County, SD
The radar
The Sioux Falls radar (KFSD), 90 km from the middle of the area, began a volume at 02:43 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.
Warnings issued inside it
55 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 9:43 PM CDT | Tornado Warning | UNR | Todd | 32 min |
| Jul 3, 9:44 PM CDT | Severe Thunderstorm Warning | ABR | McPherson | 61 min |
| Jul 3, 9:54 PM CDT | Severe Thunderstorm Warning | FSD | Douglas | 36 min |
| Jul 3, 10:16 PM CDT | Severe Thunderstorm Warning | FSD | Davison, Hutchinson | 44 min |
| Jul 3, 10:21 PM CDT | Severe Thunderstorm Warning | FSD | Yankton | 39 min |
| Jul 3, 10:22 PM CDT | Severe Thunderstorm Warning | ABR | Brown | 53 min |
| Jul 3, 10:25 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Union | 35 min |
| Jul 3, 10:37 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 53 min |
| Jul 3, 10:40 PM CDT | Severe Thunderstorm Warning | FSD | Hanson | 35 min |
| Jul 3, 10:46 PM CDT | Severe Thunderstorm Warning | FSD | Lincoln, Turner | 44 min |
| Jul 3, 10:53 PM CDT | Severe Thunderstorm Warning | ABR | Marshall | 52 min |
| Jul 3, 10:55 PM CDT | Severe Thunderstorm Warning | FSD | McCook | 35 min |
| Jul 3, 11:08 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 67 min |
| Jul 3, 11:14 PM CDT | Severe Thunderstorm Warning | ABR | Spink | 61 min |
| Jul 3, 11:16 PM CDT | Severe Thunderstorm Warning | ABR | Day | 59 min |
| Jul 3, 11:17 PM CDT | Severe Thunderstorm Warning | ABR | Roberts | 43 min |
| Jul 3, 11:29 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien | 46 min |
| Jul 3, 11:40 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 35 min |
| Jul 3, 11:45 PM CDT | Severe Thunderstorm Warning | FSD | Moody | 45 min |
| Jul 3, 11:46 PM CDT | Severe Thunderstorm Warning | ABR | Big Stone, Traverse | 59 min |
| Jul 3, 11:49 PM CDT | Severe Thunderstorm Warning | ABR | Codington, Grant | 41 min |
| Jul 3, 11:58 PM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Stevens, Swift | 62 min |
| Jul 4, 12:00 AM CDT | Severe Thunderstorm Warning | FSD | Nobles | 45 min |
| Jul 4, 12:02 AM CDT | Severe Thunderstorm Warning | FGF | Grant, Wilkin | 43 min |
| Jul 4, 12:06 AM CDT | Severe Thunderstorm Warning | ABR | Roberts | 24 min |
| Jul 4, 12:07 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, Dickinson | 38 min |
| Jul 4, 12:11 AM CDT | Severe Thunderstorm Warning | FSD | Murray, Pipestone | 49 min |
| Jul 4, 12:19 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 56 min |
| Jul 4, 12:21 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 54 min |
| Jul 4, 12:23 AM CDT | Severe Thunderstorm Warning | FSD | Jackson | 37 min |
| Jul 4, 12:24 AM CDT | Severe Thunderstorm Warning | DMX | Sac | 51 min |
| Jul 4, 12:30 AM CDT | Severe Thunderstorm Warning | ABR | Grant | 30 min |
| Jul 4, 12:32 AM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 43 min |
| Jul 4, 12:33 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope | 42 min |
| Jul 4, 12:36 AM CDT | Severe Thunderstorm Warning | FSD | Cottonwood | 39 min |
| Jul 4, 12:37 AM CDT | Severe Thunderstorm Warning | MPX | Martin | 53 min |
| Jul 4, 12:42 AM CDT | Severe Thunderstorm Warning | ABR | Corson | 63 min |
| Jul 4, 12:54 AM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 61 min |
| Jul 4, 12:54 AM CDT | Severe Thunderstorm Warning | MPX | Chippewa, Lac qui Parle, Stevens, Swift | 51 min |
| Jul 4, 12:56 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 49 min |
| Jul 4, 12:59 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun | 46 min |
| Jul 4, 1:00 AM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood, Watonwan | 60 min |
| Jul 4, 1:07 AM CDT | Severe Thunderstorm Warning | ABR | Campbell | 53 min |
| Jul 4, 1:07 AM CDT | Severe Thunderstorm Warning | UNR | Haakon | 68 min |
| Jul 4, 1:10 AM CDT | Severe Thunderstorm Warning | MPX | Douglas, Pope, Stearns, Todd | 50 min |
| Jul 4, 1:16 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Lac qui Parle, Pope, Renville, Yellow Medicine | 59 min |
| Jul 4, 1:18 AM CDT | Severe Thunderstorm Warning | MPX | Kandiyohi, Renville, Yellow Medicine | 57 min |
| Jul 4, 1:22 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Winnebago | 53 min |
| Jul 4, 1:28 AM CDT | Severe Thunderstorm Warning | MPX | Blue Earth, Faribault, Martin, Nicollet | 47 min |
| Jul 4, 1:39 AM CDT | Severe Thunderstorm Warning | ABR | McPherson | 66 min |
| Jul 4, 1:42 AM CDT | Severe Thunderstorm Warning | UNR | Ziebach | 63 min |
| Jul 4, 1:43 AM CDT | Severe Thunderstorm Warning | DMX | Wright | 47 min |
| Jul 4, 2:00 AM CDT | Severe Thunderstorm Warning | MPX | Brown, Redwood | 30 min |
| Jul 4, 2:04 AM CDT | Severe Thunderstorm Warning | ABR | Dewey | 56 min |
| Jul 4, 2:09 AM CDT | Tornado Warning | MPX | Nicollet | 36 min |
Discussions around it
SPC mesoscale discussions over the same counties from four hours before the watch to its end.
The nearest sounding before it
Aberdeen, SD (KABR), launched 00:00Z, 2.7 hours before the alert went out and 115 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
- 1927 J/kg
- Mixed-layer CIN
- -22 J/kg
- Mixed-layer LCL
- 1633 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 201 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 2.8
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 3, 8:11 PM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 6 more | 94 min |
| Jul 3, 11:23 PM CDT | Mesoscale Discussion | SPC | Allamakee, Boone, Bremer, Buena Vista, Butler, Calhoun and 36 more | 97 min |
| Jul 4, 12:42 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Boone, Bremer, Butler, Calhoun and 24 more | 63 min |
| Jul 4, 1:15 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 34 more | 6 hr |
| Jul 4, 3:27 AM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Cedar and 14 more | 93 min |
| Jul 4, 12:48 PM CDT | Mesoscale Discussion | SPC | Des Moines, Henry | 117 min |
| Jul 3, 10:22 PM CDT | Mesoscale Discussion | SPC | Becker, Clay, Douglas, Grant, Hubbard, Otter Tail and 3 more | 23 min |
| Jul 3, 10:40 PM CDT | Severe Thunderstorm Watch | SPC | Aitkin, Becker, Carlton, Cass, Clay, Crow Wing and 14 more | 5 hr |
| Jul 4, 12:25 AM CDT | Mesoscale Discussion | SPC | Traverse | 2 hr |
| Jul 3, 7:36 PM CDT | Mesoscale Discussion | SPC | Arthur, Chase, Cherry, Deuel, Dundy, Garden and 11 more | 54 min |
| Jul 4, 2:51 PM CDT | Mesoscale Discussion | SPC | Banner, Box Butte, Dawes, Morrill, Scotts Bluff, Sheridan and 1 more | 114 min |
| Jul 4, 5:12 PM CDT | Mesoscale Discussion | SPC | Adams, Boone, Buffalo, Butler, Clay, Colfax and 31 more | 93 min |
| Jul 4, 5:55 PM CDT | Mesoscale Discussion | SPC | Antelope, Blaine, Brown, Cedar, Cherry, Garfield and 6 more | 95 min |
| Jul 4, 3:20 PM CDT | Severe Thunderstorm Watch | SPC | Bennett, Butte, Custer, Dewey, Fall River, Haakon and 14 more | 6 hr |
Nearby
Severe Thunderstorm Watches in South Dakota, 2003Severe Thunderstorm Watches in Minnesota, 2003Severe Thunderstorm Watches in Iowa, 2003Every severe thunderstorm watch 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.