Alert archive / South Dakota / Mesoscale Discussions in 2008

Mesoscale Discussion 1322

June 11, 200838 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2008, 12:39 AM CDT for 38 counties in South Dakota. It was in force for 36 min.

The area

The outline as issued.

The facts

Issued
Jun 11, 2008, 12:39 AM CDT (05:39 UTC)
Expired
Jun 11, 2008, 1:15 AM CDT
In force
36 min
Issued by
the Storm Prediction Center
All 38 counties

Aurora County, SD, Beadle County, SD, Brown County, SD, Brule County, SD, Buffalo County, SD, Charles Mix County, SD, Clark County, SD, Codington County, SD, Davison County, SD, Day County, SD, Dewey County, SD, Douglas County, SD, Edmunds County, SD, Faulk County, SD, Gregory 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, Lyman County, SD, Marshall County, SD, McCook County, SD, McPherson County, SD, Miner County, SD, Potter County, SD, Sanborn County, SD, Spink County, SD, Stanley County, SD, Sully County, SD, Tripp County, SD, Turner County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 140 km from the middle of the area, began a volume at 05:39 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, 5.7 hours before the alert went out and 79 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 2008-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2008-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1020 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
430 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

IssuedProductOfficeCountiesLasted
Jun 10, 8:06 PM CDTTornado WatchSPCBuffalo, Butte, Dewey, Haakon, Hughes, Hyde and 12 more5 hr
Jun 10, 10:51 PM CDTMesoscale DiscussionSPCAurora, Beadle, Brookings, Brown, Brule, Buffalo and 35 more54 min
Jun 11, 12:55 AM CDTSevere Thunderstorm WatchSPCBeadle, Brookings, Brown, Buffalo, Campbell, Clark and 29 more7 hr
Jun 11, 3:19 AM CDTMesoscale DiscussionSPCAurora, Beadle, Brookings, Brown, Brule, Buffalo and 42 more116 min
Jun 11, 6:23 AM CDTMesoscale DiscussionSPCBeadle, Brookings, Clark, Codington, Day, Deuel and 12 more2 hr
Jun 11, 2:03 PM CDTMesoscale DiscussionSPCClay, Lincoln, Union117 min
Jun 11, 2:52 PM CDTTornado WatchSPCLincoln, Union7 hr

Nearby

Mesoscale Discussions in South Dakota, 2008Every mesoscale discussion in 2008

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.