Alert archive / South Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1364

July 3, 20077 counties in Minnesota; Richland County, North Dakota; 16 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2007, 6:39 AM CDT for 7 counties in Minnesota; Richland County, North Dakota; 16 counties in South Dakota. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jul 3, 2007, 6:39 AM CDT (11:39 UTC)
Expired
Jul 3, 2007, 8:45 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 24 counties

Big Stone County, MN, Grant County, MN, Lac qui Parle County, MN, Stevens County, MN, Swift County, MN, Traverse County, MN, Wilkin County, MN, Richland County, ND, Beadle County, SD, Brookings County, SD, Butte County, SD, Clark County, SD, Codington County, SD, Deuel County, SD, Grant County, SD, Hamlin County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, Kingsbury County, SD, Roberts County, SD, Stanley County, SD, Sully County, SD, Ziebach County, SD

The radar

The Aberdeen radar (KABR), 38 km from the middle of the area, began a volume at 11:41 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

Bismarck Municip, ND (KBIS), launched 00:00Z, 11.7 hours before the alert went out and 222 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, Bismarck Municip, ND at 00:00Z on 2007-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1417 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, Bismarck Municip, ND at 00:00Z on 2007-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 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
1417 J/kg
Mixed-layer CIN
-76 J/kg
Mixed-layer LCL
1562 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
40 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

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
Jul 3, 11:34 AM CDTMesoscale DiscussionSPCAnoka, Blue Earth, Brown, Carver, Chisago, Dakota and 23 more86 min
Jul 3, 12:10 PM CDTTornado WatchSPCAitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 35 more8 hr
Jul 3, 2:00 PM CDTMesoscale DiscussionSPCAitkin, Becker, Beltrami, Cass, Clay, Clearwater and 12 more90 min
Jul 3, 3:36 PM CDTMesoscale DiscussionSPCJackson, Martin, Nobles, Rock84 min
Jul 3, 3:59 PM CDTTornado WatchSPCJackson, Nobles8 hr
Jul 3, 5:50 PM CDTMesoscale DiscussionSPCAitkin, Anoka, Benton, Blue Earth, Brown, Carlton and 35 more55 min
Jul 3, 6:08 PM CDTTornado WatchSPCDodge, Fillmore, Houston, Mower, Olmsted, Wabasha and 1 more6 hr
Jul 3, 6:55 PM CDTMesoscale DiscussionSPCFaribault, Freeborn, Jackson, Martin, Nobles95 min
Jul 2, 7:45 PM CDTMesoscale DiscussionSPCBurke, Divide, Mountrail, Renville, Ward, Williams90 min
Jul 2, 10:55 PM CDTMesoscale DiscussionSPCBenson, Billings, Bottineau, Burke, Burleigh, Divide and 22 more65 min
Jul 2, 11:13 PM CDTSevere Thunderstorm WatchSPCBillings, Bottineau, Burke, Divide, Dunn, Golden Valley and 13 more5 hr
Jul 3, 1:58 AM CDTMesoscale DiscussionSPCAdams, Barnes, Benson, Billings, Bottineau, Bowman and 31 more2 hr
Jul 3, 2:21 AM CDTSevere Thunderstorm WatchSPCAdams, Barnes, Benson, Bowman, Burleigh, Cass and 24 more7 hr
Jul 3, 5:41 AM CDTMesoscale DiscussionSPCAdams, Barnes, Bowman, Cass, Dickey, Emmons and 15 more2 hr
Jul 2, 9:19 PM CDTMesoscale DiscussionSPCButte, Custer, Fall River, Harding, Lawrence, Meade and 3 more86 min

Nearby

Mesoscale Discussions in South Dakota, 2007Mesoscale Discussions in Minnesota, 2007Mesoscale Discussions in North Dakota, 2007Every mesoscale discussion in 2007

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.