Alert archive / South Dakota / Tornado Watches in 1999

Tornado Watch 396

June 5, 19994 states

The Storm Prediction Center issued this tornado watch at Jun 5, 1999, 9:00 PM CDT for 4 states. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Jun 5, 1999, 9:00 PM CDT (02:00 UTC)
Expired
Jun 6, 1999, 2:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 87 counties

Clay County, IA, Dickinson County, IA, Emmet County, IA, Lyon County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Sioux County, IA, Big Stone County, MN, 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, Martin County, MN, McLeod 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, Watonwan County, MN, Yellow Medicine County, MN, Boyd County, NE, Cherry County, NE, Keya Paha County, NE, Knox County, NE, Aurora County, SD, Beadle County, SD, Bennett County, SD, Bon Homme County, SD, Brookings County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Clark County, SD, Clay County, SD, Codington County, SD, Davison County, SD, Day County, SD, Deuel County, SD, Dewey County, SD, Douglas 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, Jackson County, SD, Jerauld County, SD, Jones County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, Lyman County, SD, McCook County, SD, Mellette County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Potter 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, Yankton County, SD, Ziebach County, SD

The radar

The Aberdeen radar (KABR), 140 km from the middle of the area, began a volume at 02:01 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

21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
Jun 5, 9:00 PM CDTFlash Flood WarningUNRHaakon, Jackson6 hr
Jun 5, 9:06 PM CDTSevere Thunderstorm WarningABRBuffalo49 min
Jun 5, 9:06 PM CDTTornado WarningUNRTodd49 min
Jun 5, 9:12 PM CDTSevere Thunderstorm WarningABRHand63 min
Jun 5, 9:16 PM CDTTornado WarningFSDGregory44 min
Jun 5, 9:18 PM CDTSevere Thunderstorm WarningUNRTripp47 min
Jun 5, 9:23 PM CDTSevere Thunderstorm WarningUNRHaakon62 min
Jun 5, 9:25 PM CDTSevere Thunderstorm WarningFSDBeadle35 min
Jun 5, 9:27 PM CDTSevere Thunderstorm WarningABRStanley63 min
Jun 5, 9:48 PM CDTSevere Thunderstorm WarningABRBuffalo47 min
Jun 5, 9:55 PM CDTFlash Flood WarningABRBuffalo4 hr
Jun 5, 9:58 PM CDTSevere Thunderstorm WarningABRHamlin47 min
Jun 5, 10:09 PM CDTSevere Thunderstorm WarningUNRTripp36 min
Jun 5, 10:11 PM CDTSevere Thunderstorm WarningABRCodington49 min
Jun 5, 10:15 PM CDTSevere Thunderstorm WarningFSDBeadle, Jerauld45 min
Jun 5, 10:17 PM CDTSevere Thunderstorm WarningABRHand48 min
Jun 5, 10:26 PM CDTSevere Thunderstorm WarningMPXMcLeod, Renville49 min
Jun 5, 10:26 PM CDTSevere Thunderstorm WarningUNRHaakon34 min
Jun 5, 10:44 PM CDTSevere Thunderstorm WarningUNRMeade, Perkins, Ziebach51 min
Jun 5, 10:56 PM CDTSevere Thunderstorm WarningFSDBeadle49 min
Jun 5, 11:01 PM CDTSevere Thunderstorm WarningMPXKandiyohi29 min

The nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 2.0 hours before the alert went out and 83 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 1999-06-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 724 joules per kilogram.LCLLFCEL10008507005003002001001 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 1999-06-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.1939587897117Sfc1 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
724 J/kg
Mixed-layer CIN
-60 J/kg
Mixed-layer LCL
1560 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 5, 9:45 PM CDTTornado WatchSPCAllamakee, Bremer, Butler, Cerro Gordo, Chickasaw, Clayton and 11 more4 hr
Jun 6, 12:45 PM CDTSevere Thunderstorm WatchSPCAllamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 21 more5 hr
Jun 6, 2:00 PM CDTTornado WatchSPCAdair, Adams, Audubon, Boone, Buena Vista, Calhoun and 38 more6 hr
Jun 6, 6:00 PM CDTTornado WatchSPCAdair, Adams, Allamakee, Appanoose, Audubon, Benton and 55 more6 hr
Jun 5, 7:45 PM CDTTornado WatchSPCAnoka, Blue Earth, Carver, Chisago, Dakota, Dodge and 20 more6 hr
Jun 6, 2:00 AM CDTSevere Thunderstorm WatchSPCWabasha5 hr
Jun 6, 2:00 AM CDTSevere Thunderstorm WatchSPCBecker, Benton, Big Stone, Cass, Clay, Crow Wing and 20 more5 hr
Jun 6, 12:30 PM CDTTornado WatchSPCBecker, Beltrami, Cass, Clay, Clearwater, Hubbard and 10 more6 hr
Jun 6, 2:00 PM CDTTornado WatchSPCAitkin, Anoka, Benton, Blue Earth, Brown, Carver and 32 more5 hr
Jun 6, 5:15 PM CDTTornado WatchSPCAitkin, Anoka, Beltrami, Benton, Blue Earth, Carlton and 44 more7 hr

Nearby

Tornado Watches in South Dakota, 1999Tornado Watches in Minnesota, 1999Tornado Watches in Iowa, 1999Every tornado watch in 1999

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.