Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 538

April 23, 20034 counties in New Mexico; 19 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2003, 2:59 AM MDT for 4 counties in New Mexico; 19 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Apr 23, 2003, 2:59 AM MDT (08:59 UTC)
Expired
Apr 23, 2003, 5:00 AM MDT
In force
2 hr
Issued by
the Storm Prediction Center
All 23 counties

Curry County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Bailey County, TX, Castro County, TX, Cochran County, TX, Deaf Smith County, TX, Hale County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 9.0 hours before the alert went out and 173 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 2003-04-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2003-04-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
570 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
110 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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
Apr 22, 11:04 PM MDTMesoscale DiscussionSPCChaves, Curry, De Baca, Guadalupe, Harding, Lea and 5 more116 min
Apr 23, 12:05 AM MDTSevere Thunderstorm WatchSPCChaves, Curry, Harding, Quay, Roosevelt, Union6 hr
Apr 22, 6:32 PM MDTMesoscale DiscussionSPCGaines, Martin88 min
Apr 23, 1:58 AM MDTMesoscale DiscussionSPCArmstrong, Borden, Briscoe, Childress, Coke, Collingsworth and 25 more2 hr
Apr 23, 9:30 AM MDTMesoscale DiscussionSPCArmstrong, Baylor, Borden, Briscoe, Childress, Coke and 41 more90 min
Apr 23, 10:50 AM MDTTornado WatchSPCArcher, Baylor, Brown, Callahan, Childress, Clay and 30 more6 hr
Apr 23, 12:26 PM MDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Childress, Clay and 27 more94 min
Apr 23, 1:12 PM MDTMesoscale DiscussionSPCBandera, Crockett, Edwards, Kerr, Kimble, Kinney and 7 more93 min
Apr 23, 1:35 PM MDTSevere Thunderstorm WatchSPCCrockett, Edwards, Kimble, Kinney, Mason, Menard and 4 more5 hr
Apr 23, 2:08 PM MDTMesoscale DiscussionSPCArcher, Baylor, Bosque, Brown, Callahan, Childress and 48 more97 min
Apr 23, 3:00 PM MDTTornado WatchSPCBosque, Collin, Comanche, Cooke, Coryell, Dallas and 25 more6 hr
Apr 23, 3:02 PM MDTMesoscale DiscussionSPCCrockett, Edwards, Kimble, Kinney, Mason, Menard and 5 more88 min
Apr 23, 4:36 PM MDTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 13 more54 min
Apr 23, 5:00 PM MDTTornado WatchSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 15 more4 hr

Nearby

Mesoscale Discussions in Texas, 2003Mesoscale Discussions in New Mexico, 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.