Alert archive / North Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1180

June 17, 200714 counties in North Dakota; 12 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2007, 4:44 PM CDT for 14 counties in North Dakota; 12 counties in South Dakota. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2007, 4:44 PM CDT (21:44 UTC)
Expired
Jun 17, 2007, 6:15 PM CDT
In force
91 min
Issued by
the Storm Prediction Center
All 26 counties

Burleigh County, ND, Dickey County, ND, Emmons County, ND, Foster County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McIntosh County, ND, Morton County, ND, Oliver County, ND, Sheridan County, ND, Sioux County, ND, Stutsman County, ND, Wells County, ND, Brown County, SD, Campbell County, SD, Edmunds County, SD, Faulk County, SD, Hand County, SD, Hughes County, SD, Hyde County, SD, McPherson County, SD, Potter County, SD, Spink County, SD, Sully County, SD, Walworth County, SD

The radar

The Bismarck radar (KBIS), 65 km from the middle of the area, began a volume at 21:48 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

Bismarck Municip, ND (KBIS), launched 12:00Z, 9.7 hours before the alert went out and 61 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 12:00Z on 2007-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 575 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 12:00Z on 2007-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 174 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
575 J/kg
Mixed-layer CIN
-365 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
174 m²/s²
0-3 km storm-relative helicity
485 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Jun 16, 9:06 PM CDTMesoscale DiscussionSPCAdams, Billings, Bowman, Dunn, Golden Valley, Hettinger and 3 more54 min
Jun 16, 11:06 PM CDTSevere Thunderstorm WatchSPCAdams, Barnes, Benson, Billings, Bowman, Burleigh and 33 more7 hr
Jun 17, 2:49 AM CDTMesoscale DiscussionSPCBarnes, Benson, Bottineau, Cass, Cavalier, Eddy and 19 more86 min
Jun 17, 3:09 AM CDTTornado WatchSPCBarnes, Cass, Ransom, Richland6 hr
Jun 17, 5:02 AM CDTMesoscale DiscussionSPCBillings, Golden Valley, McKenzie, Williams58 min
Jun 17, 5:40 AM CDTSevere Thunderstorm WatchSPCBillings, Bottineau, Bowman, Burleigh, Dunn, Golden Valley and 14 more3 hr
Jun 17, 4:08 PM CDTMesoscale DiscussionSPCEddy, Foster, Grand Forks, Griggs, Nelson, Pembina and 4 more67 min
Jun 17, 4:18 PM CDTTornado WatchSPCGrand Forks, Griggs, Nelson, Pembina, Steele, Traill and 1 more8 hr
Jun 17, 5:13 PM CDTTornado WatchSPCBarnes, Burleigh, Cass, Dickey, Eddy, Emmons and 12 more7 hr
Jun 16, 10:38 PM CDTMesoscale DiscussionSPCButte, Custer, Harding, Jackson, Lawrence, Meade and 3 more97 min
Jun 17, 3:53 PM CDTMesoscale DiscussionSPCBennett, Brule, Buffalo, Butte, Campbell, Corson and 24 more97 min
Jun 17, 4:01 PM CDTSevere Thunderstorm WatchSPCBennett, Jackson, Mellette, Todd, Tripp7 hr
Jun 17, 4:08 PM CDTSevere Thunderstorm WatchSPCButte, Custer, Fall River, Haakon, Harding, Lawrence and 4 more6 hr
Jun 17, 5:02 PM CDTSevere Thunderstorm WatchSPCBrown, Buffalo, Campbell, Corson, Dewey, Edmunds and 12 more7 hr
Jun 17, 6:56 PM CDTMesoscale DiscussionSPCBennett, Brown, Buffalo, Butte, Campbell, Custer and 22 more94 min

Nearby

Mesoscale Discussions in North Dakota, 2007Mesoscale Discussions in South 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.