Alert archive / Kansas / Mesoscale Discussions in 2006

Mesoscale Discussion 796

May 8, 20064 states

The Storm Prediction Center issued this mesoscale discussion at May 8, 2006, 5:38 PM CDT for 4 states. It was in force for 67 min.

The area

The outline as issued.

The facts

Issued
May 8, 2006, 5:38 PM CDT (22:38 UTC)
Expired
May 8, 2006, 6:45 PM CDT
In force
67 min
Issued by
the Storm Prediction Center
All 68 counties

Adair County, IA, Adams County, IA, Audubon County, IA, Carroll County, IA, Cass County, IA, Crawford County, IA, Fremont County, IA, Guthrie County, IA, Harrison County, IA, Mills County, IA, Montgomery County, IA, Page County, IA, Pottawattamie County, IA, Ringgold County, IA, Shelby County, IA, Taylor County, IA, Union County, IA, Barton County, KS, Brown County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Gove County, KS, Graham County, KS, Hodgeman County, KS, Jackson County, KS, Jewell County, KS, Lane County, KS, Lincoln County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Nemaha County, KS, Ness County, KS, Osborne County, KS, Ottawa County, KS, Pawnee County, KS, Pottawatomie County, KS, Republic County, KS, Rice County, KS, Riley County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Scott County, KS, Stafford County, KS, Trego County, KS, Washington County, KS, Atchison County, MO, Holt County, MO, Nodaway County, MO, Cass County, NE, Douglas County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Lancaster County, NE, Nemaha County, NE, Otoe County, NE, Pawnee County, NE, Richardson County, NE, Saline County, NE, Sarpy County, NE, Thayer County, NE

The radar

The Grand Island radar (KUEX), 83 km from the middle of the area, began a volume at 22:39 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

Omaha, NE (KOAX), launched 12:00Z, 10.6 hours before the alert went out and 223 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 12:00Z on 2006-05-08Temperature 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, Omaha, NE at 12:00Z on 2006-05-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 86 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
10 J/kg
Mixed-layer CIN
-361 J/kg
Mixed-layer LCL
756 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
86 m²/s²
0-3 km storm-relative helicity
148 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
May 8, 6:02 PM CDTSevere Thunderstorm WatchSPCAdair, Adams, Audubon, Black Hawk, Boone, Bremer and 33 more6 hr
May 7, 8:01 PM CDTSevere Thunderstorm WatchSPCClark, Ford, Grant, Gray, Haskell, Meade and 2 more5 hr
May 7, 9:15 PM CDTMesoscale DiscussionSPCClark, Comanche, Kiowa, Meade, Seward60 min
May 7, 11:51 PM CDTMesoscale DiscussionSPCBarber, Cowley, Harper, Kingman, Pratt, Reno and 2 more54 min
May 8, 3:40 PM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Comanche, Edwards, Ellis and 28 more2 hr
May 8, 4:23 PM CDTTornado WatchSPCBarber, Barton, Clark, Cloud, Comanche, Decatur and 42 more7 hr

Nearby

Mesoscale Discussions in Kansas, 2006Mesoscale Discussions in Iowa, 2006Mesoscale Discussions in Nebraska, 2006Every mesoscale discussion in 2006

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.