Alert archive / North Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1183

June 17, 200715 counties in Minnesota; 30 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2007, 7:59 PM CDT for 15 counties in Minnesota; 30 counties in North Dakota. It was in force for 91 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2007, 7:59 PM CDT (00:59 UTC)
Expired
Jun 17, 2007, 9:30 PM CDT
In force
91 min
Issued by
the Storm Prediction Center
All 45 counties

Beltrami County, MN, Clay County, MN, Clearwater County, MN, Itasca County, MN, Kittson County, MN, Koochiching County, MN, Lake of the Woods County, MN, Mahnomen County, MN, Marshall County, MN, Norman County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Roseau County, MN, Saint Louis County, MN, Barnes County, ND, Benson County, ND, Burleigh County, ND, Cass County, ND, Eddy County, ND, Emmons County, ND, Foster County, ND, Grand Forks County, ND, Grant County, ND, Griggs County, ND, Kidder County, ND, LaMoure County, ND, Logan County, ND, McHenry County, ND, McIntosh County, ND, McLean County, ND, Mercer County, ND, Morton County, ND, Nelson County, ND, Oliver County, ND, Pembina County, ND, Pierce County, ND, Ramsey County, ND, Ransom County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Traill County, ND, Walsh County, ND, Wells County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 29 km from the middle of the area, began a volume at 00:59 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 00:00Z, 1.0 hours before the alert went out and 291 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 2007-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2169 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 2007-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 square meters per square second.1939587897Sfc1 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
2169 J/kg
Mixed-layer CIN
-24 J/kg
Mixed-layer LCL
1314 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.3

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 17, 10:43 PM CDTMesoscale DiscussionSPCBecker, Big Stone, Clay, Clearwater, Grant, Kittson and 9 more62 min
Jun 18, 12:03 AM CDTSevere Thunderstorm WatchSPCBecker, Beltrami, Clay, Clearwater, Grant, Hubbard and 12 more3 hr
Jun 18, 12:44 AM CDTMesoscale DiscussionSPCAitkin, Beltrami, Benton, Carlton, Cass, Clearwater and 14 more61 min
Jun 18, 1:09 AM CDTSevere Thunderstorm WatchSPCAitkin, Cass, Crow Wing, Itasca, Koochiching3 hr
Jun 18, 12:46 PM CDTSevere Thunderstorm WatchSPCDodge, Fillmore, Goodhue, Houston, Mower, Olmsted and 2 more7 hr
Jun 18, 3:27 PM CDTMesoscale DiscussionSPCFillmore, Houston, Mower, Olmsted, Wabasha, Winona93 min

Nearby

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