Alert archive / Kansas / Mesoscale Discussions in 2007

Mesoscale Discussion 552

April 23, 200761 counties in Kansas; Grant County, Kay County, Oklahoma

The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2007, 8:54 PM CDT for 61 counties in Kansas; Grant County, Kay County, Oklahoma. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 23, 2007, 8:54 PM CDT (01:54 UTC)
Expired
Apr 23, 2007, 11:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 63 counties

Barber County, KS, Barton County, KS, Butler County, KS, Cheyenne County, KS, Clark County, KS, Comanche County, KS, Cowley County, KS, Decatur County, KS, Edwards County, KS, Ellis County, KS, Ellsworth County, KS, Finney County, KS, Ford County, KS, Gove County, KS, Graham County, KS, Grant County, KS, Gray County, KS, Greeley County, KS, Hamilton County, KS, Harper County, KS, Harvey County, KS, Haskell County, KS, Hodgeman County, KS, Kearny County, KS, Kingman County, KS, Kiowa County, KS, Lane County, KS, Lincoln County, KS, Logan County, KS, Marion County, KS, McPherson County, KS, Meade County, KS, Mitchell County, KS, Morton County, KS, Ness County, KS, Norton County, KS, Osborne County, KS, Pawnee County, KS, Phillips County, KS, Pratt County, KS, Rawlins County, KS, Reno County, KS, Rice County, KS, Rooks County, KS, Rush County, KS, Russell County, KS, Saline County, KS, Scott County, KS, Sedgwick County, KS, Seward County, KS, Sheridan County, KS, Sherman County, KS, Smith County, KS, Stafford County, KS, Stanton County, KS, Stevens County, KS, Sumner County, KS, Thomas County, KS, Trego County, KS, Wallace County, KS, Wichita County, KS, Grant County, OK, Kay County, OK

The radar

The Dodge City radar (KDDC), 75 km from the middle of the area, began a volume at 01:57 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

Dodge City, (KDDC), launched 00:00Z, 1.9 hours before the alert went out and 69 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 00:00Z on 2007-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1336 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 00:00Z on 2007-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 206 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
1336 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
712 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
206 m²/s²
0-3 km storm-relative helicity
279 m²/s²
Significant tornado parameter
1.7
Supercell composite
9.4

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, 9:53 PM CDTSevere Thunderstorm WatchSPCJewell, Mitchell, Osborne, Phillips, Rooks, Smith8 hr
Apr 23, 10:41 PM CDTTornado WatchSPCCheyenne, Decatur, Graham, Norton, Rawlins, Sheridan and 2 more5 hr
Apr 24, 1:37 AM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Graham, Logan, Norton and 6 more83 min
Apr 24, 5:03 AM CDTMesoscale DiscussionSPCGraham, Jewell, Lincoln, Mitchell, Norton, Osborne and 3 more87 min
Apr 24, 10:04 AM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Cloud, Comanche, Edwards and 40 more116 min
Apr 24, 10:48 AM CDTTornado WatchSPCBarber, Barton, Butler, Chase, Chautauqua, Clay and 41 more10 hr
Apr 24, 2:03 PM CDTMesoscale DiscussionSPCAllen, Anderson, Atchison, Bourbon, Brown, Cherokee and 26 more87 min
Apr 24, 2:48 PM CDTMesoscale DiscussionSPCCheyenne, Decatur, Gove, Logan, Rawlins, Sheridan and 3 more117 min
Apr 24, 3:24 PM CDTTornado WatchSPCAllen, Anderson, Atchison, Bourbon, Brown, Cherokee and 24 more5 hr
Apr 24, 3:37 PM CDTMesoscale DiscussionSPCBarber, Barton, Butler, Chase, Chautauqua, Clay and 33 more83 min
Apr 24, 6:13 PM CDTMesoscale DiscussionSPCButler, Chase, Chautauqua, Clay, Cloud, Cowley and 17 more62 min
Apr 23, 7:05 PM CDTMesoscale DiscussionSPCBeaver, Beckham, Custer, Dewey, Ellis, Greer and 10 more115 min
Apr 24, 11:23 AM CDTTornado WatchSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 36 more9 hr
Apr 24, 11:28 AM CDTMesoscale DiscussionSPCCotton, Jefferson, Love, Tillman2 hr
Apr 24, 12:40 PM CDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Choctaw, Haskell, Latimer and 8 more2 hr
Apr 24, 2:40 PM CDTTornado WatchSPCMcCurtain8 hr
Apr 24, 3:01 PM CDTTornado WatchSPCAdair, Cherokee, Choctaw, Craig, Delaware, Haskell and 12 more7 hr
Apr 24, 6:16 PM CDTMesoscale DiscussionSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 36 more119 min

Nearby

Mesoscale Discussions in Kansas, 2007Mesoscale Discussions in Oklahoma, 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.