Alert archive / Minnesota / Mesoscale Discussions in 2016

Mesoscale Discussion 1231

July 10, 201615 counties in Iowa; 23 counties in Minnesota

The Storm Prediction Center issued this mesoscale discussion at Jul 10, 2016, 3:48 AM CDT for 15 counties in Iowa; 23 counties in Minnesota. It was in force for 87 min.

The area

The outline as issued.

The facts

Issued: Jul 10, 2016, 3:48 AM CDT (08:48 UTC)
Expired: Jul 10, 2016, 5:15 AM CDT
In force: 87 min
Issued by: the Storm Prediction Center

All 38 counties

Cerro Gordo County, IA, Clay County, IA, Dickinson County, IA, Emmet County, IA, Floyd County, IA, Hancock County, IA, Kossuth County, IA, Lyon County, IA, Mitchell County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Sioux County, IA, Winnebago County, IA, Worth County, IA, Blue Earth County, MN, Brown County, MN, Carver County, MN, Cottonwood County, MN, Dodge County, MN, Faribault County, MN, Freeborn County, MN, Jackson County, MN, Le Sueur County, MN, Martin County, MN, McLeod County, MN, Mower County, MN, Murray County, MN, Nicollet County, MN, Nobles County, MN, Pipestone County, MN, Rice County, MN, Rock County, MN, Scott County, MN, Sibley County, MN, Steele County, MN, Waseca County, MN, Watonwan County, MN

The radar

The Sioux Falls radar (KFSD), 152 km from the middle of the area, began a volume at 08:50 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

Minneapolis, MN (KMPX), launched 00:00Z, 8.8 hours before the alert went out and 150 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1578 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 85 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.

Issued	Product	Office	Counties	Lasted
Jul 10, 7:34 AM CDT	Mesoscale Discussion	SPC	Adair, Benton, Black Hawk, Boone, Bremer, Butler and 28 more	86 min
Jul 10, 12:55 PM CDT	Mesoscale Discussion	SPC	Appanoose, Davis, Des Moines, Henry, Jefferson, Lee and 5 more	95 min
Jul 9, 8:32 PM CDT	Severe Thunderstorm Watch	SPC	Becker, Clay, Grant, Mahnomen, Norman, Otter Tail and 2 more	5 hr
Jul 9, 10:44 PM CDT	Mesoscale Discussion	SPC	Becker, Big Stone, Clay, Douglas, Grant, Hubbard and 11 more	91 min
Jul 9, 11:36 PM CDT	Severe Thunderstorm Watch	SPC	Big Stone, Chippewa, Douglas, Kandiyohi, Lac qui Parle, McLeod and 10 more	5 hr
Jul 10, 1:23 AM CDT	Mesoscale Discussion	SPC	Big Stone, Chippewa, Douglas, Grant, Kandiyohi, Lac qui Parle and 14 more	2 hr

Nearby

Mesoscale Discussions in Minnesota, 2016 Mesoscale Discussions in Iowa, 2016 Every 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.