Alert archive / Nebraska / Mesoscale Discussions in 2007

Mesoscale Discussion 1031

June 6, 20074 states

The Storm Prediction Center issued this mesoscale discussion at Jun 6, 2007, 10:53 PM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 6, 2007, 10:53 PM CDT (03:53 UTC)
Expired
Jun 7, 2007, 1:00 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 46 counties

Lyon County, IA, Sioux County, IA, Pipestone County, MN, Rock County, MN, Antelope County, NE, Boone County, NE, Boyd County, NE, Cedar County, NE, Custer County, NE, Dakota County, NE, Dixon County, NE, Garfield County, NE, Greeley County, NE, Holt County, NE, Howard County, NE, Knox County, NE, Loup County, NE, Madison County, NE, Nance County, NE, Pierce County, NE, Platte County, NE, Rock County, NE, Sherman County, NE, Stanton County, NE, Valley County, NE, Wayne County, NE, Wheeler County, NE, Aurora County, SD, Bon Homme County, SD, Charles Mix County, SD, Clay County, SD, Davison County, SD, Douglas County, SD, Hanson County, SD, Hutchinson County, SD, Kingsbury County, SD, Lake County, SD, Lincoln County, SD, McCook County, SD, Miner County, SD, Minnehaha County, SD, Moody County, SD, Sanborn County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Sioux Falls radar (KFSD), 165 km from the middle of the area, began a volume at 03:56 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

Omaha, NE (KOAX), launched 00:00Z, 3.9 hours before the alert went out and 193 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, Omaha, NE at 00:00Z on 2007-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 384 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, Omaha, NE at 00:00Z on 2007-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 215 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
384 J/kg
Mixed-layer CIN
-428 J/kg
Mixed-layer LCL
1943 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
215 m²/s²
0-3 km storm-relative helicity
425 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 7, 3:05 AM CDTMesoscale DiscussionSPCCherokee, Lyon, Monona, O'Brien, Osceola, Plymouth and 2 more55 min
Jun 7, 9:11 AM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Appanoose, Audubon, Benton and 56 more64 min
Jun 7, 11:34 AM CDTTornado Watch PDSSPCAdair, Allamakee, Appanoose, Benton, Black Hawk, Boone and 59 more10 hr
Jun 7, 3:38 PM CDTMesoscale DiscussionSPCAllamakee, Appanoose, Benton, Buchanan, Cedar, Clayton and 19 more97 min
Jun 6, 8:29 PM CDTMesoscale DiscussionSPCBig Stone, Clay, Grant, Lac qui Parle, Norman, Otter Tail and 5 more61 min
Jun 6, 8:49 PM CDTTornado WatchSPCBecker, Big Stone, Chippewa, Clay, Clearwater, Douglas and 16 more7 hr
Jun 6, 11:30 PM CDTMesoscale DiscussionSPCBecker, Big Stone, Clay, Douglas, Grant, Lac qui Parle and 8 more2 hr
Jun 7, 2:02 AM CDTMesoscale DiscussionSPCAnoka, Benton, Blue Earth, Brown, Carver, Chisago and 20 more58 min
Jun 7, 3:36 AM CDTMesoscale DiscussionSPCBecker, Beltrami, Clay, Clearwater, Hubbard, Mahnomen and 8 more54 min
Jun 7, 10:48 AM CDTMesoscale DiscussionSPCBecker, Big Stone, Clay, Clearwater, Douglas, Grant and 9 more87 min
Jun 7, 11:11 AM CDTTornado WatchSPCAitkin, Becker, Beltrami, Big Stone, Cass, Clay and 20 more7 hr
Jun 7, 2:34 PM CDTMesoscale DiscussionSPCBecker, Beltrami, Cass, Clay, Clearwater, Grant and 10 more116 min
Jun 7, 4:11 PM CDTMesoscale DiscussionSPCBenton, Chippewa, Isanti, Kandiyohi, McLeod, Meeker and 9 more2 hr
Jun 7, 5:22 PM CDTMesoscale DiscussionSPCAitkin, Cass, Crow Wing, Itasca, Saint Louis53 min
Jun 6, 7:36 PM CDTTornado WatchSPCAntelope, Blaine, Boone, Boyd, Brown, Buffalo and 25 more7 hr

Nearby

Mesoscale Discussions in Nebraska, 2007Mesoscale Discussions in South Dakota, 2007Mesoscale Discussions in Iowa, 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.