Alert archive / South Dakota / Mesoscale Discussions in 2016

Mesoscale Discussion 805

June 2, 201611 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 2, 2016, 10:06 PM CDT for 11 counties in South Dakota. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
Jun 2, 2016, 10:06 PM CDT (03:06 UTC)
Expired
Jun 2, 2016, 11:30 PM CDT
In force
84 min
Issued by
the Storm Prediction Center

Counties Aurora County, SD, Beadle County, SD, Brule County, SD, Buffalo County, SD, Clark County, SD, Day County, SD, Hand County, SD, Jerauld County, SD, Kingsbury County, SD, Sanborn County, SD, Spink County, SD

The radar

The Aberdeen radar (KABR), 91 km from the middle of the area, began a volume at 03:06 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 nearest sounding before it

Aberdeen, SD (KABR), launched 00:00Z, 3.1 hours before the alert went out and 32 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 2016-06-03Temperature 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 2016-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.193958Sfc1 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
2057 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
122 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 2, 7:23 PM CDTMesoscale DiscussionSPCBuffalo, Dewey, Haakon, Hand, Hughes, Hyde and 6 more97 min
Jun 3, 1:28 PM CDTMesoscale DiscussionSPCBeadle, Brookings, Brown, Campbell, Clark, Codington and 19 more3 hr

Nearby

Mesoscale Discussions in South Dakota, 2016Every mesoscale discussion in 2016

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.