Alert archive / South Dakota / Tornado Watches in 2010
Tornado Watch 213
The Storm Prediction Center issued this tornado watch at May 24, 2010, 11:21 AM MDT for 24 counties in Nebraska; 30 counties in South Dakota. It was in force for 9 hr.
The area
The outline as issued.
The facts
- Issued
- May 24, 2010, 11:21 AM MDT (17:21 UTC)
- Expired
- May 24, 2010, 8:00 PM MDT
- In force
- 9 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 3 in
- Strongest gust expected
- 60 kt
All 54 counties
Arthur County, NE, Banner County, NE, Box Butte County, NE, Chase County, NE, Cherry County, NE, Cheyenne County, NE, Dawes County, NE, Deuel County, NE, Frontier County, NE, Garden County, NE, Grant County, NE, Hayes County, NE, Hooker County, NE, Keith County, NE, Kimball County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Morrill County, NE, Perkins County, NE, Scotts Bluff County, NE, Sheridan County, NE, Sioux County, NE, Thomas County, NE, Bennett 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, Haakon County, SD, Hand 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, 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), 81 km from the middle of the area, began a volume at 17:21 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 80%
- One or more EF2 to EF5 tornadoes
- 50%
- Ten or more severe wind reports
- 60%
- One or more gusts of 65 knots or more
- 50%
- Ten or more severe hail reports
- 90%
- One or more hailstones of 2 inches or more
- 60%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
106 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 24, 11:25 AM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball, Scotts Bluff | 65 min |
| May 24, 11:30 AM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 60 min |
| May 24, 11:33 AM MDT | Tornado Warning | CYS | Banner, Kimball | 42 min |
| May 24, 11:37 AM MDT | Severe Thunderstorm Warning | UNR | Fall River | 38 min |
| May 24, 11:38 AM MDT | Severe Thunderstorm Warning | CYS | Scotts Bluff, Sioux | 67 min |
| May 24, 11:48 AM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sioux | 57 min |
| May 24, 11:54 AM MDT | Tornado Warning | CYS | Banner, Box Butte, Dawes, Scotts Bluff, Sioux | 66 min |
| May 24, 11:59 AM MDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand | 31 min |
| May 24, 12:04 PM MDT | Tornado Warning | UNR | Custer, Fall River | 56 min |
| May 24, 12:22 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Meade, Pennington | 53 min |
| May 24, 12:30 PM MDT | Severe Thunderstorm Warning | ABR | Hand | 30 min |
| May 24, 12:31 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Meade, Pennington | 59 min |
| May 24, 12:35 PM MDT | Tornado Warning | LBF | Hooker, McPherson | 25 min |
| May 24, 12:35 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 40 min |
| May 24, 12:40 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Box Butte, Dawes, Scotts Bluff, Sioux | 65 min |
| May 24, 12:40 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 65 min |
| May 24, 12:45 PM MDT | Tornado Warning | LBF | Logan, Thomas | 30 min |
| May 24, 12:46 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 59 min |
| May 24, 12:47 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 31 min |
| May 24, 12:48 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Kimball | 42 min |
| May 24, 12:48 PM MDT | Tornado Warning | LBF | Lincoln, Logan, Thomas | 27 min |
| May 24, 12:49 PM MDT | Severe Thunderstorm Warning | CYS | Banner, Cheyenne, Kimball, Morrill, Scotts Bluff | 56 min |
| May 24, 12:54 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 51 min |
| May 24, 12:59 PM MDT | Tornado Warning | LBF | Cherry, Hooker | 46 min |
| May 24, 1:02 PM MDT | Severe Thunderstorm Warning | ABR | Edmunds, Faulk, Hand | 28 min |
| May 24, 1:04 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 24 min |
| May 24, 1:12 PM MDT | Severe Thunderstorm Warning | UNR | Meade | 63 min |
| May 24, 1:13 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Lawrence, Meade, Pennington | 62 min |
| May 24, 1:14 PM MDT | Tornado Warning | LBF | Blaine, Cherry, Thomas | 46 min |
| May 24, 1:17 PM MDT | Tornado Warning | LBF | Blaine, Cherry, Custer, Logan, Thomas | 43 min |
| May 24, 1:20 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Fall River | 55 min |
| May 24, 1:24 PM MDT | Tornado Warning | UNR | Meade, Ziebach | 36 min |
| May 24, 1:30 PM MDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk, McPherson, Spink | 30 min |
| May 24, 1:32 PM MDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 58 min |
| May 24, 1:40 PM MDT | Severe Thunderstorm Warning | CYS | Dawes, Sioux | 65 min |
| May 24, 1:42 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Sioux | 63 min |
| May 24, 1:44 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes, Morrill | 61 min |
| May 24, 1:46 PM MDT | Tornado Warning | LBF | Cherry | 29 min |
| May 24, 1:46 PM MDT | Severe Thunderstorm Warning | UNR | Tripp | 46 min |
| May 24, 1:47 PM MDT | Severe Thunderstorm Warning | CYS | Cheyenne, Morrill | 58 min |
| May 24, 1:48 PM MDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 42 min |
| May 24, 1:50 PM MDT | Tornado Warning | LBF | Cherry | 47 min |
| May 24, 1:50 PM MDT | Tornado Warning | UNR | Meade, Perkins, Ziebach | 40 min |
| May 24, 1:59 PM MDT | Tornado Warning | LBF | Brown, Cherry | 46 min |
| May 24, 2:02 PM MDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand, Hughes, Hyde, Lyman, Stanley | 19 min |
| May 24, 2:05 PM MDT | Tornado Warning | UNR | Custer, Fall River | 40 min |
| May 24, 2:08 PM MDT | Tornado Warning | CYS | Box Butte, Dawes | 37 min |
| May 24, 2:15 PM MDT | Tornado Warning | LBF | Cherry | 30 min |
| May 24, 2:17 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Pennington | 43 min |
| May 24, 2:19 PM MDT | Severe Thunderstorm Warning | UNR | Perkins | 71 min |
| May 24, 2:25 PM MDT | Severe Thunderstorm Warning | UNR | Butte, Harding, Meade, Perkins | 50 min |
| May 24, 2:31 PM MDT | Severe Thunderstorm Warning | UNR | Mellette, Todd | 59 min |
| May 24, 2:31 PM MDT | Severe Thunderstorm Warning | UNR | Meade, Perkins | 59 min |
| May 24, 2:42 PM MDT | Tornado Warning | LBF | Brown, Cherry, Keya Paha | 33 min |
| May 24, 2:42 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Fall River, Meade, Pennington | 63 min |
| May 24, 2:43 PM MDT | Tornado Warning | LBF | Cherry | 17 min |
| May 24, 2:44 PM MDT | Severe Thunderstorm Warning | CYS | Box Butte, Dawes | 61 min |
| May 24, 2:56 PM MDT | Severe Thunderstorm Warning | UNR | 49 min | |
| May 24, 2:57 PM MDT | Tornado Warning | LBF | Sheridan | 48 min |
| May 24, 3:00 PM MDT | Flash Flood Warning | UNR | Pennington | 5 hr |
| May 24, 3:03 PM MDT | Severe Thunderstorm Warning | ABR | Buffalo, Hand | 27 min |
| May 24, 3:06 PM MDT | Severe Thunderstorm Warning | UNR | Butte, Meade | 39 min |
| May 24, 3:10 PM MDT | Severe Thunderstorm Warning | UNR | Harding, Perkins | 80 min |
| May 24, 3:15 PM MDT | Flash Flood Warning | UNR | Meade, Pennington | 5 hr |
| May 24, 3:15 PM MDT | Tornado Warning | UNR | Perkins | 45 min |
| May 24, 3:18 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Deuel, Garden, Grant, Keith | 27 min |
| May 24, 3:31 PM MDT | Severe Thunderstorm Warning | LBF | Garden, Sheridan | 59 min |
| May 24, 3:35 PM MDT | Severe Thunderstorm Warning | UNR | 25 min | |
| May 24, 3:44 PM MDT | Severe Thunderstorm Warning | UNR | Custer, Meade, Pennington | 61 min |
| May 24, 3:45 PM MDT | Severe Thunderstorm Warning | LBF | Arthur, Grant, Keith | 60 min |
| May 24, 3:47 PM MDT | Severe Thunderstorm Warning | ABR | Faulk, Hand, Spink | 43 min |
| May 24, 3:47 PM MDT | Tornado Warning | UNR | Pennington | 28 min |
| May 24, 3:50 PM MDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 25 min |
| May 24, 3:52 PM MDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Potter, Stanley, Sully | 38 min |
| May 24, 3:55 PM MDT | Severe Thunderstorm Warning | LBF | Chase, Hayes, Keith, Perkins | 56 min |
| May 24, 3:56 PM MDT | Flash Flood Warning | UNR | Custer, Pennington | 4 hr |
| May 24, 3:58 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Grant, Sheridan | 47 min |
| May 24, 4:12 PM MDT | Severe Thunderstorm Warning | ABR | Brown, Edmunds, Faulk | 33 min |
| May 24, 4:14 PM MDT | Severe Thunderstorm Warning | ABR | McPherson | 31 min |
| May 24, 4:14 PM MDT | Tornado Warning | UNR | Pennington | 31 min |
| May 24, 4:20 PM MDT | Severe Thunderstorm Warning | UNR | Perkins | 44 min |
| May 24, 4:31 PM MDT | Severe Thunderstorm Warning | LBF | Hayes, Keith, Lincoln, McPherson, Perkins | 59 min |
| May 24, 4:37 PM MDT | Severe Thunderstorm Warning | ABR | Faulk, Spink | 3 min |
| May 24, 4:38 PM MDT | Severe Thunderstorm Warning | ABR | Edmunds, McPherson | 21 min |
| May 24, 4:40 PM MDT | Tornado Warning | LBF | Keith, Lincoln, McPherson | 50 min |
| May 24, 4:42 PM MDT | Severe Thunderstorm Warning | UNR | Meade, Pennington, Perkins, Ziebach | 63 min |
| May 24, 4:44 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Grant, Hooker, Logan, McPherson, Thomas | 31 min |
| May 24, 4:49 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 26 min |
| May 24, 4:54 PM MDT | Severe Thunderstorm Warning | ABR | Campbell, Dewey, Potter, Walworth | 17 min |
| May 24, 5:16 PM MDT | Severe Thunderstorm Warning | LBF | Cherry, Hooker, Logan, McPherson, Thomas | 29 min |
| May 24, 5:17 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 43 min |
| May 24, 5:20 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Jackson, Mellette | 55 min |
| May 24, 5:26 PM MDT | Severe Thunderstorm Warning | LBF | Frontier, Hayes, Lincoln, Logan, McPherson | 64 min |
| May 24, 5:29 PM MDT | Severe Thunderstorm Warning | UNR | Haakon, Ziebach | 61 min |
| May 24, 5:43 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Cherry, Hooker, Logan, McPherson, Thomas | 32 min |
| May 24, 5:45 PM MDT | Severe Thunderstorm Warning | ABR | Dewey, Hughes, Jones, Lyman, Stanley, Sully | 60 min |
| May 24, 5:46 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 14 min |
| May 24, 5:52 PM MDT | Severe Thunderstorm Warning | UNR | Mellette, Todd, Tripp | 68 min |
| May 24, 5:57 PM MDT | Severe Thunderstorm Warning | ABR | Corson, Dewey | 48 min |
| May 24, 6:02 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 28 min |
| May 24, 6:04 PM MDT | Severe Thunderstorm Warning | LBF | Cherry | 26 min |
| May 24, 6:07 PM MDT | Severe Thunderstorm Warning | LBF | Custer, Frontier, Lincoln, Logan | 53 min |
| May 24, 6:20 PM MDT | Severe Thunderstorm Warning | LBF | Blaine, Thomas | 55 min |
| May 24, 6:26 PM MDT | Severe Thunderstorm Warning | LBF | Brown, Cherry, Keya Paha, Rock | 64 min |
| May 24, 6:39 PM MDT | Severe Thunderstorm Warning | ABR | Buffalo, Campbell, Corson, Dewey, Edmunds, Faulk and 9 more | 66 min |
| May 24, 7:40 PM MDT | Severe Thunderstorm Warning | ABR | Brown, Buffalo, Campbell, Edmunds, Faulk, Hand and 2 more | 50 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
Rapid City, SD (KUNR), launched 12:00Z, 5.4 hours before the alert went out and 84 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 501 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 208 m²/s²
- 0-3 km storm-relative helicity
- 227 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 23, 6:39 PM MDT | Mesoscale Discussion | SPC | Arthur, Blaine, Chase, Custer, Dawson, Frontier and 9 more | 66 min |
| May 23, 6:50 PM MDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Boyd, Brown, Buffalo, Chase and 24 more | 4 hr |
| May 23, 7:12 PM MDT | Mesoscale Discussion | SPC | Dundy, Hitchcock, Red Willow | 93 min |
| May 23, 10:12 PM MDT | Mesoscale Discussion | SPC | Blaine, Brown, Custer, Hayes, Holt, Hooker and 6 more | 2 hr |
| May 23, 10:39 PM MDT | Severe Thunderstorm Watch | SPC | Box Butte, Dawes, Scotts Bluff, Sioux | 5 hr |
| May 23, 10:54 PM MDT | Severe Thunderstorm Watch | SPC | Arthur, Blaine, Boyd, Brown, Chase, Cherry and 21 more | 4 hr |
| May 24, 5:06 AM MDT | Mesoscale Discussion | SPC | Arthur, Box Butte, Brown, Cherry, Dawes, Garden and 6 more | 114 min |
| May 24, 9:44 AM MDT | Mesoscale Discussion | SPC | Arthur, Banner, Chase, Cheyenne, Deuel, Dundy and 6 more | 91 min |
| May 24, 10:46 AM MDT | Tornado Watch | SPC | Dundy, Hitchcock, Red Willow | 10 hr |
| May 24, 10:55 AM MDT | Mesoscale Discussion | SPC | Arthur, Box Butte, Cherry, Cheyenne, Dawes, Garden and 4 more | 95 min |
| May 24, 1:33 PM MDT | Tornado Watch | SPC | Blaine, Boyd, Brown, Custer, Garfield, Holt and 4 more | 5 hr |
| May 24, 2:33 PM MDT | Mesoscale Discussion | SPC | Arthur, Banner, Box Butte, Cherry, Cheyenne, Dawes and 11 more | 57 min |
| May 24, 2:47 PM MDT | Mesoscale Discussion | SPC | Chase, Deuel, Dundy, Frontier, Garden, Hayes and 5 more | 88 min |
| May 24, 5:03 PM MDT | Mesoscale Discussion | SPC | Adams, Antelope, Blaine, Boone, Boyd, Brown and 21 more | 87 min |
| May 23, 9:19 PM MDT | Mesoscale Discussion | SPC | Aurora, Beadle, Bennett, Brule, Buffalo, Davison and 18 more | 86 min |
| May 24, 12:37 AM MDT | Mesoscale Discussion | SPC | Brown, Campbell, Corson, Day, Dewey, Edmunds and 8 more | 83 min |
| May 24, 1:00 AM MDT | Severe Thunderstorm Watch | SPC | Brown, Campbell, Clark, Codington, Corson, Day and 12 more | 7 hr |
| May 24, 3:21 AM MDT | Mesoscale Discussion | SPC | Aurora, Beadle, Brown, Campbell, Clark, Codington and 16 more | 54 min |
Nearby
Tornado Watches in South Dakota, 2010Tornado Watches in Nebraska, 2010Every tornado watch 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.