Alert archive / Nebraska / Mesoscale Discussions in 2008

Mesoscale Discussion 1271

June 7, 20085 states

The Storm Prediction Center issued this mesoscale discussion at Jun 7, 2008, 10:15 PM CDT for 5 states. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Jun 7, 2008, 10:15 PM CDT (03:15 UTC)
Expired
Jun 7, 2008, 11:45 PM CDT
In force
90 min
Issued by
the Storm Prediction Center
All 83 counties

Buena Vista County, IA, Cherokee County, IA, Clay County, IA, Crawford County, IA, Dickinson County, IA, Emmet County, IA, Harrison County, IA, Ida County, IA, Lyon County, IA, Monona County, IA, O'Brien County, IA, Osceola County, IA, Palo Alto County, IA, Plymouth County, IA, Pocahontas County, IA, Sac County, IA, Sioux County, IA, Woodbury County, IA, Jewell County, KS, Smith County, KS, Cottonwood County, MN, Jackson County, MN, Nobles County, MN, Rock County, MN, Adams County, NE, Antelope County, NE, Boone County, NE, Boyd County, NE, Buffalo County, NE, Burt County, NE, Butler County, NE, Cedar County, NE, Clay County, NE, Colfax County, NE, Cuming County, NE, Dakota County, NE, Dixon County, NE, Dodge County, NE, Douglas County, NE, Fillmore County, NE, Franklin County, NE, Garfield County, NE, Greeley County, NE, Hall County, NE, Hamilton County, NE, Harlan County, NE, Holt County, NE, Howard County, NE, Jefferson County, NE, Kearney County, NE, Knox County, NE, Lancaster County, NE, Loup County, NE, Madison County, NE, Merrick County, NE, Nance County, NE, Nuckolls County, NE, Phelps County, NE, Pierce County, NE, Platte County, NE, Polk County, NE, Rock County, NE, Saline County, NE, Saunders County, NE, Seward County, NE, Sherman County, NE, Stanton County, NE, Thayer County, NE, Thurston County, NE, Valley County, NE, Washington County, NE, Wayne County, NE, Webster County, NE, Wheeler County, NE, York County, NE, Bon Homme County, SD, Clay County, SD, Hutchinson County, SD, Lincoln County, SD, Minnehaha County, SD, Turner County, SD, Union County, SD, Yankton County, SD

The radar

The Omaha radar (KOAX), 97 km from the middle of the area, began a volume at 02:57 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

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 3.3 hours before the alert went out and 258 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, N. Platte/Lee Bi, NE at 00:00Z on 2008-06-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 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, N. Platte/Lee Bi, NE at 00:00Z on 2008-06-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -31 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
23 J/kg
Mixed-layer CIN
-341 J/kg
Mixed-layer LCL
1577 m above ground
0-6 km bulk shear
82 kt
0-1 km storm-relative helicity
-31 m²/s²
0-3 km storm-relative helicity
254 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, 7:40 PM CDTTornado WatchSPCAdair, Allamakee, Audubon, Benton, Black Hawk, Boone and 43 more7 hr
Jun 7, 11:01 PM CDTMesoscale DiscussionSPCMonona, Woodbury59 min
Jun 7, 11:11 PM CDTSevere Thunderstorm WatchSPCBuena Vista, Cherokee, Clay, Harrison, Ida, Mills and 8 more7 hr
Jun 8, 2:29 AM CDTMesoscale DiscussionSPCAdair, Adams, Allamakee, Audubon, Benton, Black Hawk and 58 more31 min
Jun 8, 3:05 AM CDTSevere Thunderstorm WatchSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 50 more6 hr
Jun 8, 6:39 AM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Benton, Black Hawk and 53 more66 min
Jun 8, 9:47 AM CDTSevere Thunderstorm WatchSPCScott5 hr
Jun 8, 12:28 PM CDTMesoscale DiscussionSPCAdair, Adams, Appanoose, Audubon, Cass, Clarke and 26 more2 hr
Jun 8, 1:21 PM CDTTornado WatchSPCAdair, Adams, Audubon, Boone, Carroll, Cass and 21 more7 hr
Jun 8, 1:34 PM CDTSevere Thunderstorm WatchSPCFremont, Montgomery, Page7 hr
Jun 8, 3:47 PM CDTMesoscale DiscussionSPCAdair, Adams, Boone, Clarke, Dallas, Decatur and 18 more118 min
Jun 8, 4:32 PM CDTMesoscale DiscussionSPCBenton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more28 min
Jun 8, 4:43 PM CDTTornado WatchSPCAppanoose, Benton, Buchanan, Cedar, Clinton, Davis and 18 more6 hr
Jun 8, 2:03 PM CDTMesoscale DiscussionSPCBarber, Butler, Chase, Cowley, Greenwood, Harper and 5 more117 min
Jun 8, 2:37 PM CDTSevere Thunderstorm WatchSPCAllen, Barber, Butler, Chase, Chautauqua, Clark and 17 more8 hr
Jun 8, 5:26 PM CDTMesoscale DiscussionSPCLinn34 min
Jun 8, 5:36 PM CDTSevere Thunderstorm WatchSPCLinn, Miami6 hr
Jun 8, 2:53 PM CDTMesoscale DiscussionSPCButte, Corson, Custer, Dewey, Fall River, Haakon and 13 more2 hr

Nearby

Mesoscale Discussions in Nebraska, 2008Mesoscale Discussions in Iowa, 2008Mesoscale Discussions in South Dakota, 2008Every mesoscale discussion in 2008

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.