Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1227

June 4, 20035 states

The Storm Prediction Center issued this mesoscale discussion at Jun 4, 2003, 12:34 AM MDT for 5 states. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
Jun 4, 2003, 12:34 AM MDT (06:34 UTC)
Expired
Jun 4, 2003, 2:30 AM MDT
In force
116 min
Issued by
the Storm Prediction Center
All 36 counties

Baca County, CO, Morton County, KS, Stanton County, KS, Stevens County, KS, Union County, NM, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Motley 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.6 hours before the alert went out and 55 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 2003-06-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 919 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 2003-06-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 square meters per square second.193958Sfc1 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
919 J/kg
Mixed-layer CIN
-124 J/kg
Mixed-layer LCL
1137 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
433 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.8

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 3, 8:41 PM MDTMesoscale DiscussionSPCBaca, Bent, Cheyenne, Crowley, El Paso, Huerfano and 6 more2 hr
Jun 4, 11:12 AM MDTMesoscale DiscussionSPCBaca, Las Animas2 hr
Jun 4, 11:30 AM MDTSevere Thunderstorm WatchSPCBent, Crowley, Huerfano, Las Animas, Otero, Pueblo6 hr
Jun 4, 2:20 PM MDTTornado WatchSPCBaca, Bent, Crowley, Las Animas, Otero, Prowers and 1 more6 hr
Jun 4, 2:27 PM MDTMesoscale DiscussionSPCBent, Crowley, Huerfano, Las Animas, Otero, Pueblo93 min
Jun 4, 5:31 PM MDTMesoscale DiscussionSPCBaca, Bent, Las Animas, Otero, Prowers, Pueblo89 min
Jun 3, 6:50 PM MDTMesoscale DiscussionSPCCurry, Harding, Lea, Quay, Roosevelt55 min
Jun 3, 7:30 PM MDTSevere Thunderstorm WatchSPCBandera, Blanco, Bosque, Brown, Burnet, Callahan and 38 more6 hr
Jun 3, 8:05 PM MDTSevere Thunderstorm WatchSPCBailey, Briscoe, Castro, Childress, Cochran, Cottle and 18 more3 hr
Jun 3, 10:37 PM MDTMesoscale DiscussionSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 35 more113 min
Jun 3, 11:35 PM MDTSevere Thunderstorm WatchSPCAtascosa, Austin, Bastrop, Bexar, Brazos, Burleson and 23 more5 hr
Jun 4, 1:52 AM MDTMesoscale DiscussionSPCAustin, Bastrop, Brazos, Burleson, Colorado, DeWitt and 12 more83 min

Nearby

Mesoscale Discussions in Texas, 2003Mesoscale Discussions in Kansas, 2003Mesoscale Discussions in Oklahoma, 2003Every mesoscale discussion in 2003

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.