Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 1305

June 12, 20054 states

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2005, 5:03 AM CDT for 4 states. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Jun 12, 2005, 5:03 AM CDT (10:03 UTC)
Expired
Jun 12, 2005, 7:30 AM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 35 counties

Meade County, KS, Seward County, KS, Stevens County, KS, Curry County, NM, Quay County, NM, Roosevelt County, NM, Beaver County, OK, Harper County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lamb County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 42 km from the middle of the area, began a volume at 10:04 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

Amarillo Airport, TX (KAMA), launched 00:00Z, 10.1 hours before the alert went out and 43 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 2005-06-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1810 joules per kilogram.LCLEL10008507005003002001001 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 2005-06-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 109 square meters per square second.1939587897Sfc1 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
1810 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
1129 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
109 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
1.1
Supercell composite
6.1

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
Jun 11, 8:27 PM CDTMesoscale DiscussionSPCBarber, Cowley, Harper, Sumner33 min
Jun 11, 10:11 PM CDTMesoscale DiscussionSPCBarber, Comanche, Harper, Kingman64 min
Jun 12, 12:38 PM CDTMesoscale DiscussionSPCButler, Chautauqua, Cowley, Elk, Greenwood, Labette and 3 more67 min
Jun 12, 1:20 PM CDTTornado WatchSPCAllen, Anderson, Atchison, Brown, Butler, Chase and 31 more9 hr
Jun 12, 2:00 PM CDTTornado WatchSPCCheyenne, Greeley, Sherman, Wallace, Wichita7 hr
Jun 12, 3:02 PM CDTMesoscale DiscussionSPCBourbon, Cherokee, Crawford, Johnson, Linn, Miami58 min
Jun 12, 3:45 PM CDTSevere Thunderstorm WatchSPCBourbon, Cherokee, Crawford, Johnson, Leavenworth, Linn and 2 more7 hr
Jun 12, 3:47 PM CDTMesoscale DiscussionSPCGrant, Hamilton, Haskell, Kearny, Morton, Seward and 2 more88 min
Jun 12, 6:09 PM CDTMesoscale DiscussionSPCClark, Finney, Ford, Gove, Grant, Gray and 18 more96 min
Jun 12, 6:13 PM CDTMesoscale DiscussionSPCCherokee2 hr
Jun 12, 5:30 AM CDTSevere Thunderstorm WatchSPCChaves, Curry, Quay, Roosevelt6 hr
Jun 12, 9:03 AM CDTMesoscale DiscussionSPCCotton, Jefferson, Tillman57 min
Jun 12, 10:08 AM CDTMesoscale DiscussionSPCBeckham, Blaine, Canadian, Custer, Dewey, Ellis and 8 more67 min
Jun 12, 11:35 AM CDTMesoscale DiscussionSPCGreer, Harmon85 min
Jun 12, 12:20 PM CDTTornado WatchSPCBeckham, Blaine, Caddo, Comanche, Cotton, Custer and 8 more10 hr
Jun 12, 3:29 PM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Comanche, Cotton, Custer and 8 more91 min
Jun 12, 5:41 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Cotton, Creek and 14 more2 hr
Jun 12, 6:05 PM CDTTornado WatchSPCAdair, Carter, Cherokee, Cleveland, Creek, Delaware and 20 more5 hr

Nearby

Mesoscale Discussions in Texas, 2005Mesoscale Discussions in Kansas, 2005Mesoscale Discussions in New Mexico, 2005Every mesoscale discussion in 2005

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.