Alert archive / Kansas / Mesoscale Discussions in 2008

Mesoscale Discussion 804

May 6, 200832 counties in Kansas; 8 counties in Nebraska; Woods County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at May 6, 2008, 9:59 PM CDT for 32 counties in Kansas; 8 counties in Nebraska; Woods County, Oklahoma. It was in force for 61 min.

The area

The outline as issued.

The facts

Issued
May 6, 2008, 9:59 PM CDT (02:59 UTC)
Expired
May 6, 2008, 11:00 PM CDT
In force
61 min
Issued by
the Storm Prediction Center
All 41 counties

Barber County, KS, Butler County, KS, Chase County, KS, Clay County, KS, Cloud County, KS, Comanche County, KS, Dickinson County, KS, Geary County, KS, Harper County, KS, Harvey County, KS, Jackson County, KS, Jewell County, KS, Kingman County, KS, Kiowa County, KS, Lyon County, KS, Marion County, KS, Marshall County, KS, McPherson County, KS, Mitchell County, KS, Morris County, KS, Nemaha County, KS, Ottawa County, KS, Pottawatomie County, KS, Pratt County, KS, Reno County, KS, Republic County, KS, Riley County, KS, Saline County, KS, Sedgwick County, KS, Sumner County, KS, Wabaunsee County, KS, Washington County, KS, Fillmore County, NE, Gage County, NE, Jefferson County, NE, Johnson County, NE, Nuckolls County, NE, Pawnee County, NE, Saline County, NE, Thayer County, NE, Woods County, OK

The radar

The Wichita radar (KICT), 120 km from the middle of the area, began a volume at 02:59 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, 3.0 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, Topeka, KS at 00:00Z on 2008-05-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 182 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, Topeka, KS at 00:00Z on 2008-05-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
182 J/kg
Mixed-layer CIN
-175 J/kg
Mixed-layer LCL
684 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
169 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 6, 7:08 PM CDTSevere Thunderstorm WatchSPCAllen, Barton, Butler, Chase, Chautauqua, Clay and 31 more6 hr
May 7, 9:52 AM CDTMesoscale DiscussionSPCCherokee83 min
May 6, 9:13 PM CDTMesoscale DiscussionSPCCass, Douglas, Gage, Johnson, Lancaster, Nemaha and 4 more62 min
May 6, 8:50 PM CDTMesoscale DiscussionSPCBeckham, Custer, Ellis, Greer, Harmon, Jackson and 4 more85 min
May 6, 9:51 PM CDTSevere Thunderstorm WatchSPCBeaver, Cimarron, Harmon, Jackson, Texas, Tillman7 hr
May 7, 12:04 AM CDTMesoscale DiscussionSPCBeaver, Beckham, Custer, Ellis, Greer, Harmon and 5 more86 min
May 7, 2:47 AM CDTMesoscale DiscussionSPCBeckham, Caddo, Comanche, Cotton, Custer, Greer and 5 more58 min
May 7, 7:07 AM CDTMesoscale DiscussionSPCAtoka, Carter, Cherokee, Cleveland, Coal, Creek and 25 more53 min
May 7, 7:33 AM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Delaware, Haskell, Latimer, LeFlore and 9 more5 hr
May 7, 1:33 PM CDTTornado WatchSPCAtoka, Bryan, Carter, Cleveland, Coal, Cotton and 14 more6 hr
May 7, 3:13 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Coal, Garvin and 7 more2 hr
May 7, 4:47 PM CDTMesoscale DiscussionSPCHaskell, Latimer, LeFlore, McCurtain, Pushmataha88 min
May 7, 5:28 PM CDTTornado WatchSPCAdair, Cherokee, Choctaw, Craig, Creek, Delaware and 20 more8 hr
May 7, 6:35 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Coal, Johnston, Marshall55 min

Nearby

Mesoscale Discussions in Kansas, 2008Mesoscale Discussions in Nebraska, 2008Mesoscale Discussions in Oklahoma, 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.