Alert archive / North Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1101

June 11, 200718 counties in North Dakota; 9 counties in South Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2007, 4:53 PM MDT for 18 counties in North Dakota; 9 counties in South Dakota. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued
Jun 11, 2007, 4:53 PM MDT (22:53 UTC)
Expired
Jun 11, 2007, 6:30 PM MDT
In force
97 min
Issued by
the Storm Prediction Center
All 27 counties

Adams County, ND, Billings County, ND, Bowman County, ND, Burke County, ND, Dunn County, ND, Grant County, ND, Hettinger County, ND, McKenzie County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Mountrail County, ND, Oliver County, ND, Renville County, ND, Sioux County, ND, Slope County, ND, Stark County, ND, Ward County, ND, Corson County, SD, Dewey County, SD, Haakon County, SD, Harding County, SD, Jackson County, SD, Meade County, SD, Perkins County, SD, Stanley County, SD, Ziebach County, SD

The radar

The Bismarck radar (KBIS), 143 km from the middle of the area, began a volume at 22:54 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

Rapid City, SD (KUNR), launched 12:00Z, 10.9 hours before the alert went out and 232 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, Rapid City, SD at 12:00Z on 2007-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 114 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, Rapid City, SD at 12:00Z on 2007-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
114 J/kg
Mixed-layer CIN
-470 J/kg
Mixed-layer LCL
2676 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
55 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
Jun 10, 10:19 PM MDTMesoscale DiscussionSPCDickey, Richland, Sargent116 min
Jun 10, 10:47 PM MDTSevere Thunderstorm WatchSPCDickey, Emmons, LaMoure, Logan, McIntosh, Ransom and 3 more6 hr
Jun 11, 1:53 PM MDTMesoscale DiscussionSPCAdams, Billings, Bowman, Burke, Burleigh, Dunn and 16 more2 hr
Jun 11, 2:26 PM MDTSevere Thunderstorm WatchSPCAdams, Billings, Bottineau, Bowman, Burke, Burleigh and 19 more8 hr
Jun 11, 2:47 PM MDTSevere Thunderstorm WatchSPCBennett, Campbell, Corson, Dewey, Haakon, Hughes and 10 more7 hr

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.