Alert archive / South Dakota / Mesoscale Discussions in 2014

Mesoscale Discussion 235

March 31, 20145 counties in Minnesota; 4 counties in North Dakota; 23 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Mar 31, 2014, 3:49 PM CDT for 5 counties in Minnesota; 4 counties in North Dakota; 23 counties in South Dakota. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
Mar 31, 2014, 3:49 PM CDT (20:49 UTC)
Expired
Mar 31, 2014, 9:15 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 32 counties

Becker County, MN, Big Stone County, MN, Clay County, MN, Traverse County, MN, Wilkin County, MN, Dickey County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Beadle County, SD, Brown County, SD, Buffalo County, SD, Clark County, SD, Codington County, SD, Day County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Jerauld County, SD, Kingsbury County, SD, Marshall County, SD, McPherson County, SD, Miner County, SD, Potter County, SD, Roberts County, SD, Sanborn County, SD, Spink County, SD, Sully County, SD

The radar

The Aberdeen radar (KABR), 54 km from the middle of the area, began a volume at 20:52 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 12:00Z, 8.8 hours before the alert went out and 72 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 12:00Z on 2014-03-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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 12:00Z on 2014-03-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 501 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
495 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
501 m²/s²
0-3 km storm-relative helicity
610 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
Mar 31, 6:18 AM CDTMesoscale DiscussionSPCNorman, Polk6 hr
Mar 31, 12:08 PM CDTMesoscale DiscussionSPCKittson, Marshall, Norman, Pennington, Polk, Red Lake and 1 more6 hr
Mar 31, 3:05 PM CDTMesoscale DiscussionSPCChippewa, Cottonwood, Lac qui Parle, Lincoln, Lyon, Murray and 5 more115 min
Mar 31, 3:52 PM CDTMesoscale DiscussionSPCBlue Earth, Faribault, Freeborn, Martin, Watonwan113 min
Mar 31, 6:43 PM CDTMesoscale DiscussionSPCAnoka, Benton, Carver, Dakota, Dodge, Fillmore and 15 more3 hr
Mar 30, 9:13 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Burleigh, Dunn, Golden Valley and 9 more3 hr

Nearby

Mesoscale Discussions in South Dakota, 2014Mesoscale Discussions in Minnesota, 2014Mesoscale Discussions in North Dakota, 2014Every mesoscale discussion in 2014

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.