Alert archive / Minnesota / Mesoscale Discussions in 2014

Mesoscale Discussion 552

May 10, 201423 counties in Iowa; 29 counties in Minnesota; Grant County, Roberts County, South Dakota

The Storm Prediction Center issued this mesoscale discussion at May 10, 2014, 5:07 PM CDT for 23 counties in Iowa; 29 counties in Minnesota; Grant County, Roberts County, South Dakota. It was in force for 83 min.

The area

The outline as issued.

The facts

Issued
May 10, 2014, 5:07 PM CDT (22:07 UTC)
Expired
May 10, 2014, 6:30 PM CDT
In force
83 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 54 counties

Boone County, IA, Buena Vista County, IA, Calhoun County, IA, Carroll County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Greene County, IA, Hamilton County, IA, Hancock County, IA, Humboldt County, IA, Ida County, IA, Kossuth County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Pocahontas County, IA, Sac County, IA, Webster County, IA, Winnebago County, IA, Wright County, IA, Big Stone County, MN, Blue Earth County, MN, Brown County, MN, Chippewa County, MN, Cottonwood County, MN, Faribault County, MN, Grant County, MN, Jackson County, MN, Kandiyohi County, MN, Lac qui Parle County, MN, Le Sueur 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, Pope County, MN, Redwood County, MN, Renville County, MN, Sibley County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Waseca County, MN, Watonwan County, MN, Yellow Medicine County, MN, Grant County, SD, Roberts County, SD

The radar

The Sioux Falls radar (KFSD), 114 km from the middle of the area, began a volume at 22:08 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, 10.1 hours before the alert went out and 250 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 2014-05-10Temperature 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 12:00Z on 2014-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 square meters per square second.1939Sfc1 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
1908 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
192 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
May 10, 12:54 PM CDTMesoscale DiscussionSPCFremont2 hr
May 10, 2:26 PM CDTSevere Thunderstorm WatchSPCAdams, Decatur, Fremont, Mills, Montgomery, Page and 3 more8 hr
May 10, 3:42 PM CDTMesoscale DiscussionSPCAdair, Adams, Audubon, Cass, Clarke, Crawford and 13 more93 min

Nearby

Mesoscale Discussions in Minnesota, 2014Mesoscale Discussions in Iowa, 2014Mesoscale Discussions in South 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.