Alert archive / Oklahoma / Mesoscale Discussions in 2007

Mesoscale Discussion 369

March 29, 20077 counties in Kansas; 22 counties in Oklahoma; 5 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 29, 2007, 2:03 AM CDT for 7 counties in Kansas; 22 counties in Oklahoma; 5 counties in Texas. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued
Mar 29, 2007, 2:03 AM CDT (07:03 UTC)
Expired
Mar 29, 2007, 3:00 AM CDT
In force
57 min
Issued by
the Storm Prediction Center
All 34 counties

Barber County, KS, Comanche County, KS, Harper County, KS, Kingman County, KS, Pratt County, KS, Reno County, KS, Sumner County, KS, Alfalfa County, OK, Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Garfield County, OK, Grady County, OK, Grant County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Major County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Baylor County, TX, Foard County, TX, Hardeman County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Vance AFB radar (KVNX), 135 km from the middle of the area, began a volume at 07:06 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

Lamont, OK (KLMN), launched 00:00Z, 7.1 hours before the alert went out and 158 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, Lamont, OK at 00:00Z on 2007-03-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1414 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, Lamont, OK at 00:00Z on 2007-03-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 102 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
1414 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
1101 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
102 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.8
Supercell composite
5.7

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
Mar 28, 9:06 PM CDTMesoscale DiscussionSPCCheyenne, Clark, Comanche, Decatur, Edwards, Ellis and 33 more114 min
Mar 28, 11:07 PM CDTMesoscale DiscussionSPCClark, Comanche, Decatur, Edwards, Ellis, Finney and 30 more113 min
Mar 28, 11:51 PM CDTTornado WatchSPCClark, Comanche, Decatur, Edwards, Ellis, Finney and 22 more4 hr
Mar 29, 6:51 PM CDTMesoscale DiscussionSPCDecatur, Edwards, Ellis, Graham, Hodgeman, Kiowa and 7 more2 hr
Mar 28, 7:08 PM CDTMesoscale DiscussionSPCBeaver, Texas2 hr
Mar 28, 8:52 PM CDTMesoscale DiscussionSPCBeaver, Cimarron, Texas113 min
Mar 28, 10:58 PM CDTMesoscale DiscussionSPCBeaver, Beckham, Custer, Dewey, Ellis, Greer and 10 more62 min
Mar 28, 11:22 PM CDTTornado WatchSPCBeaver, Beckham, Custer, Dewey, Ellis, Greer and 8 more6 hr
Mar 29, 11:01 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Coal, Garvin, Hughes and 7 more119 min
Mar 29, 12:05 PM CDTSevere Thunderstorm WatchSPCAtoka, Bryan, Carter, Coal, Garvin, Johnston and 4 more6 hr
Mar 29, 3:50 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Cleveland, Coal, Creek and 17 more85 min
Mar 29, 5:44 PM CDTTornado WatchSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 28 more6 hr
Mar 28, 8:51 PM CDTTornado WatchSPCAndrews, Borden, Coke, Crane, Dawson, Ector and 19 more7 hr

Nearby

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