Alert archive / Kansas / Mesoscale Discussions in 2008

Mesoscale Discussion 697

April 23, 200838 counties in Kansas

The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2008, 9:20 AM CDT for 38 counties in Kansas. It was in force for 85 min.

The area

The outline as issued.

The facts

Issued
Apr 23, 2008, 9:20 AM CDT (14:20 UTC)
Expired
Apr 23, 2008, 10:45 AM CDT
In force
85 min
Issued by
the Storm Prediction Center
All 38 counties

Barber County, KS, Barton County, KS, Butler County, KS, Chase County, KS, Cowley County, KS, Dickinson County, KS, Edwards County, KS, Elk County, KS, Ellis County, KS, Ellsworth County, KS, Ford County, KS, Geary County, KS, Gray County, KS, Greenwood County, KS, Harper County, KS, Harvey County, KS, Hodgeman County, KS, Kingman County, KS, Kiowa County, KS, Lane County, KS, Lincoln County, KS, Lyon County, KS, Marion County, KS, McPherson County, KS, Morris County, KS, Ness County, KS, Ottawa County, KS, Pawnee County, KS, Pratt County, KS, Reno County, KS, Rice County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Sedgwick County, KS, Stafford County, KS, Sumner County, KS, Trego County, KS

The radar

The Wichita radar (KICT), 99 km from the middle of the area, began a volume at 14:23 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

Dodge City, (KDDC), launched 12:00Z, 2.3 hours before the alert went out and 128 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, Dodge City, at 12:00Z on 2008-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1038 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, Dodge City, at 12:00Z on 2008-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 186 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
1038 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
613 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
186 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.5

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
Apr 23, 9:32 AM CDTSevere Thunderstorm WatchSPCBarber, Clark, Comanche, Edwards, Finney, Ford and 15 more6 hr
Apr 23, 9:50 AM CDTSevere Thunderstorm WatchSPCBarton, Butler, Chase, Chautauqua, Clay, Cloud and 38 more6 hr
Apr 23, 12:13 PM CDTMesoscale DiscussionSPCAllen, Anderson, Barton, Bourbon, Butler, Chase and 40 more92 min
Apr 23, 2:25 PM CDTTornado WatchSPCCheyenne, Decatur, Gove, Greeley, Logan, Rawlins and 5 more8 hr
Apr 23, 3:37 PM CDTMesoscale DiscussionSPCAllen, Anderson, Barber, Barton, Bourbon, Butler and 58 more53 min
Apr 23, 3:52 PM CDTSevere Thunderstorm WatchSPCFinney, Grant, Gray, Hamilton, Haskell, Kearny and 7 more4 hr

Nearby

Mesoscale Discussions in Kansas, 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.