Alert archive / Kansas / Mesoscale Discussions in 2007

Mesoscale Discussion 2068

October 12, 200735 counties in Kansas; 4 counties in Nebraska

The Storm Prediction Center issued this mesoscale discussion at Oct 12, 2007, 10:06 PM CDT for 35 counties in Kansas; 4 counties in Nebraska. It was in force for 114 min.

The area

The outline as issued.

The facts

Issued
Oct 12, 2007, 10:06 PM CDT (03:06 UTC)
Expired
Oct 13, 2007, 12:00 AM CDT
In force
114 min
Issued by
the Storm Prediction Center
All 39 counties

Barton County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Dickinson County, KS, Ellis County, KS, Ellsworth County, KS, Geary County, KS, Jackson County, KS, Jewell County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Ness County, KS, Osage County, KS, Osborne County, KS, Ottawa 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, Shawnee County, KS, Smith County, KS, Trego County, KS, Wabaunsee County, KS, Washington County, KS, Gage County, NE, Jefferson County, NE, Pawnee County, NE, Thayer County, NE

The radar

The Topeka radar (KTWX), 133 km from the middle of the area, began a volume at 03:08 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

Topeka, KS (KTOP), launched 00:00Z, 3.1 hours before the alert went out and 183 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, Topeka, KS at 00:00Z on 2007-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Topeka, KS at 00:00Z on 2007-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 225 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1392 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
225 m²/s²
0-3 km storm-relative helicity
303 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
Oct 13, 4:20 PM CDTMesoscale DiscussionSPCClark, Comanche, Edwards, Ford, Hodgeman, Kiowa and 4 more55 min
Oct 13, 2:23 PM CDTMesoscale DiscussionSPCBanner, Box Butte, Cheyenne, Garden, Kimball, Morrill and 1 more97 min

Nearby

Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Nebraska, 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.