Alert archive / North Dakota / Mesoscale Discussions in 2007

Mesoscale Discussion 1173

June 17, 200710 counties in Minnesota; 25 counties in North Dakota

The Storm Prediction Center issued this mesoscale discussion at Jun 17, 2007, 2:49 AM CDT for 10 counties in Minnesota; 25 counties in North Dakota. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
Jun 17, 2007, 2:49 AM CDT (07:49 UTC)
Expired
Jun 17, 2007, 4:15 AM CDT
In force
86 min
Issued by
the Storm Prediction Center
All 35 counties

Becker County, MN, Clay County, MN, Clearwater County, MN, Mahnomen County, MN, Norman County, MN, Otter Tail County, MN, Pennington County, MN, Polk County, MN, Red Lake County, MN, Wilkin County, MN, Barnes County, ND, Benson County, ND, Bottineau County, ND, Cass County, ND, Cavalier County, ND, Eddy County, ND, Foster County, ND, Grand Forks County, ND, Griggs County, ND, McHenry County, ND, Nelson County, ND, Pierce County, ND, Ramsey County, ND, Ransom County, ND, Renville County, ND, Richland County, ND, Rolette County, ND, Sheridan County, ND, Steele County, ND, Stutsman County, ND, Towner County, ND, Traill County, ND, Walsh County, ND, Ward County, ND, Wells County, ND

The radar

The Fargo/Grand Forks radar (KMVX), 87 km from the middle of the area, began a volume at 07:49 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, 7.8 hours before the alert went out and 190 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 2007-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 10 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 2007-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
10 J/kg
Mixed-layer CIN
-277 J/kg
Mixed-layer LCL
1366 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
181 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
Jun 17, 3:09 AM CDTTornado WatchSPCBecker, Clay, Otter Tail, Wilkin6 hr
Jun 17, 6:51 AM CDTMesoscale DiscussionSPCBecker, Beltrami, Cass, Clay, Clearwater, Hubbard and 7 more84 min
Jun 17, 4:08 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Cass, Clearwater, Hubbard, Kittson and 6 more67 min
Jun 17, 4:18 PM CDTTornado WatchSPCBeltrami, Clearwater, Itasca, Kittson, Koochiching, Lake of the Woods and 8 more8 hr
Jun 17, 5:13 PM CDTTornado WatchSPCClay, Wilkin7 hr
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, 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, 4:44 PM CDTMesoscale DiscussionSPCBurleigh, Dickey, Emmons, Foster, Kidder, LaMoure and 8 more91 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.