Alert archive / Texas / Mesoscale Discussions in 2012

Mesoscale Discussion 2044

October 13, 20126 counties in Kansas; Beaver County, Harper County, Oklahoma; 13 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Oct 13, 2012, 2:06 AM CDT for 6 counties in Kansas; Beaver County, Harper County, Oklahoma; 13 counties in Texas. It was in force for 84 min.

The area

The outline as issued.

The facts

Issued
Oct 13, 2012, 2:06 AM CDT (07:06 UTC)
Expired
Oct 13, 2012, 3:30 AM CDT
In force
84 min
Issued by
the Storm Prediction Center
Chance of a watch
20%
All 21 counties

Clark County, KS, Comanche County, KS, Ford County, KS, Kiowa County, KS, Meade County, KS, Seward County, KS, Beaver County, OK, Harper County, OK, Carson County, TX, Gray County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 115 km from the middle of the area, began a volume at 07:10 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 7.1 hours before the alert went out and 115 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, Amarillo Airport, TX at 00:00Z on 2012-10-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1574 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, Amarillo Airport, TX at 00:00Z on 2012-10-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 219 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
1574 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
219 m²/s²
0-3 km storm-relative helicity
284 m²/s²
Significant tornado parameter
0.0
Supercell composite
11.7

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
Oct 12, 10:11 PM CDTMesoscale DiscussionSPCFinney, Grant, Gray, Hamilton, Haskell, Hodgeman and 10 more94 min
Oct 12, 11:52 PM CDTMesoscale DiscussionSPCBarton, Clark, Comanche, Edwards, Ellis, Finney and 24 more83 min
Oct 13, 2:00 PM CDTMesoscale DiscussionSPCBarber, Barton, Clark, Clay, Cloud, Comanche and 31 more90 min
Oct 13, 3:13 PM CDTSevere Thunderstorm WatchSPCBarber, Barton, Butler, Chase, Clay, Cloud and 26 more6 hr
Oct 13, 5:57 PM CDTTornado WatchSPCCherokee, Crawford6 hr
Oct 13, 6:26 PM CDTMesoscale DiscussionSPCButler, Chase, Clay, Cloud, Cowley, Dickinson and 24 more64 min
Oct 13, 6:59 PM CDTMesoscale DiscussionSPCCherokee, Crawford2 hr
Oct 13, 12:23 PM CDTMesoscale DiscussionSPCCaddo, Comanche, Custer, Greer, Jackson, Kiowa and 2 more3 hr
Oct 13, 1:00 PM CDTTornado WatchSPCAlfalfa, Atoka, Blaine, Bryan, Caddo, Canadian and 36 more8 hr
Oct 13, 2:55 PM CDTMesoscale DiscussionSPCAtoka, Blaine, Bryan, Caddo, Canadian, Carter and 33 more95 min
Oct 12, 9:19 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Carson, Castro, Cochran and 20 more56 min
Oct 12, 11:34 PM CDTMesoscale DiscussionSPCAndrews, Bailey, Cochran, Crosby, Dawson, Floyd and 9 more86 min
Oct 13, 1:10 PM CDTMesoscale DiscussionSPCCoke, Concho, Crockett, Irion, Menard, Reagan and 7 more95 min
Oct 13, 1:37 PM CDTSevere Thunderstorm WatchSPCBrown, Coke, Coleman, Concho, Crockett, Edwards and 19 more9 hr
Oct 13, 3:42 PM CDTMesoscale DiscussionSPCCoke, Crockett, Irion, Kinney, Maverick, Reagan and 6 more93 min
Oct 13, 6:30 PM CDTMesoscale DiscussionSPCAngelina, Austin, Bastrop, Bexar, Brazos, Burleson and 27 more60 min

Nearby

Mesoscale Discussions in Texas, 2012Mesoscale Discussions in Kansas, 2012Mesoscale Discussions in Oklahoma, 2012Every mesoscale discussion in 2012

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.