Alert archive / Minnesota / Mesoscale Discussions in 2016

Mesoscale Discussion 1229

July 9, 201617 counties in Minnesota; 15 counties in North Dakota; 13 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 9, 2016, 10:44 PM CDT for 17 counties in Minnesota; 15 counties in North Dakota; 13 counties in South Dakota. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Jul 9, 2016, 10:44 PM CDT (03:44 UTC)
Expired
Jul 10, 2016, 12:15 AM CDT
In force
91 min
Issued by
the Storm Prediction Center
All 45 counties

Becker County, MN, Big Stone County, MN, Clay County, MN, Douglas County, MN, Grant County, MN, Hubbard County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Pope County, MN, Stearns County, MN, Stevens County, MN, Swift County, MN, Todd County, MN, Traverse County, MN, Wadena County, MN, Wilkin County, MN, Barnes County, ND, Cass County, ND, Dickey County, ND, Emmons County, ND, Foster County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Ransom County, ND, Richland County, ND, Sargent County, ND, Stutsman County, ND, Wells County, ND, Brown County, SD, Campbell County, SD, Day County, SD, Edmunds County, SD, Faulk County, SD, Grant County, SD, Marshall County, SD, McPherson County, SD, Potter County, SD, Roberts County, SD, Spink County, SD, Sully County, SD, Walworth County, SD

The radar

The Aberdeen radar (KABR), 90 km from the middle of the area, began a volume at 03:44 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, 3.7 hours before the alert went out and 149 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 2016-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2269 joules per kilogram.LCLLFCEL10008507005003002001001 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 2016-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 193 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
2269 J/kg
Mixed-layer CIN
-187 J/kg
Mixed-layer LCL
1392 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
193 m²/s²
0-3 km storm-relative helicity
386 m²/s²
Significant tornado parameter
0.2
Supercell composite
20.7

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
Jul 9, 8:32 PM CDTSevere Thunderstorm WatchSPCBecker, Clay, Grant, Mahnomen, Norman, Otter Tail and 2 more5 hr
Jul 9, 11:36 PM CDTSevere Thunderstorm WatchSPCBig Stone, Chippewa, Douglas, Kandiyohi, Lac qui Parle, McLeod and 10 more5 hr
Jul 10, 1:23 AM CDTMesoscale DiscussionSPCBig Stone, Chippewa, Douglas, Grant, Kandiyohi, Lac qui Parle and 14 more2 hr
Jul 10, 3:48 AM CDTMesoscale DiscussionSPCBlue Earth, Brown, Carver, Cottonwood, Dodge, Faribault and 17 more87 min
Jul 10, 2:19 PM CDTMesoscale DiscussionSPCBillings, Bowman, Dunn, Golden Valley, McKenzie, Slope and 1 more86 min
Jul 10, 2:48 PM CDTSevere Thunderstorm WatchSPCAdams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 3 more7 hr
Jul 10, 4:53 PM CDTMesoscale DiscussionSPCBurleigh, Dickey, Eddy, Emmons, Foster, Grant and 12 more67 min
Jul 10, 5:19 PM CDTSevere Thunderstorm WatchSPCBarnes, Benson, Bottineau, Burke, Burleigh, Cavalier and 29 more6 hr
Jul 10, 3:06 PM CDTMesoscale DiscussionSPCBennett, Brule, Buffalo, Dewey, Gregory, Haakon and 11 more84 min

Nearby

Mesoscale Discussions in Minnesota, 2016Mesoscale Discussions in North Dakota, 2016Mesoscale 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.