Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 168

March 4, 200423 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 4, 2004, 1:42 PM CST for 23 counties in Texas. It was in force for 63 min.

The area

The outline as issued.

The facts

Issued
Mar 4, 2004, 1:42 PM CST (19:42 UTC)
Expired
Mar 4, 2004, 2:45 PM CST
In force
63 min
Issued by
the Storm Prediction Center
All 23 counties

Bell County, TX, Blanco County, TX, Bosque County, TX, Burnet County, TX, Collin County, TX, Coryell County, TX, Dallas County, TX, Denton County, TX, Ellis County, TX, Falls County, TX, Hill County, TX, Hood County, TX, Johnson County, TX, Kaufman County, TX, Kendall County, TX, Lampasas County, TX, Limestone County, TX, McLennan County, TX, Navarro County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Williamson County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 7.7 hours before the alert went out and 146 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, Fort Worth, TX at 12:00Z on 2004-03-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 696 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, Fort Worth, TX at 12:00Z on 2004-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 327 square meters per square second.1939587897117Sfc1 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
696 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
649 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
327 m²/s²
0-3 km storm-relative helicity
350 m²/s²
Significant tornado parameter
1.3
Supercell composite
7.5

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 3, 7:03 PM CSTMesoscale DiscussionSPCAndrews, Borden, Coke, Crane, Crockett, Dawson and 25 more117 min
Mar 3, 8:40 PM CSTSevere Thunderstorm WatchSPCAndrews, Borden, Cottle, Crane, Crosby, Dawson and 20 more5 hr
Mar 3, 11:44 PM CSTMesoscale DiscussionSPCAndrews, Borden, Crane, Crosby, Dawson, Dickens and 16 more2 hr
Mar 4, 1:56 AM CSTMesoscale DiscussionSPCArcher, Bailey, Baylor, Briscoe, Brown, Castro and 55 more94 min
Mar 4, 2:00 AM CSTSevere Thunderstorm WatchSPCAndrews, Archer, Armstrong, Bailey, Baylor, Borden and 39 more5 hr
Mar 4, 2:44 AM CSTMesoscale DiscussionSPCArcher, Baylor, Childress, Clay, Collingsworth, Cottle and 19 more3 hr
Mar 4, 4:25 AM CSTTornado WatchSPCCallahan, Coke, Coleman, Concho, Crockett, Fisher and 23 more6 hr
Mar 4, 5:01 AM CSTMesoscale DiscussionSPCAndrews, Archer, Armstrong, Bailey, Baylor, Borden and 39 more119 min
Mar 4, 5:32 AM CSTMesoscale DiscussionSPCCallahan, Coke, Coleman, Concho, Crockett, Fisher and 23 more118 min
Mar 4, 6:55 AM CSTSevere Thunderstorm WatchSPCArmstrong, Baylor, Borden, Briscoe, Carson, Childress and 30 more6 hr
Mar 4, 8:43 AM CSTMesoscale DiscussionSPCArcher, Baylor, Callahan, Coke, Coleman, Concho and 26 more62 min
Mar 4, 9:28 AM CSTMesoscale DiscussionSPCCooke, Fannin, Grayson, Lamar, Montague62 min
Mar 4, 9:45 AM CSTTornado WatchSPCArcher, Baylor, Brown, Callahan, Clay, Coke and 34 more5 hr
Mar 4, 10:46 AM CSTMesoscale DiscussionSPCAtascosa, Bandera, Bell, Bexar, Blanco, Bosque and 27 more89 min
Mar 4, 11:50 AM CSTTornado WatchSPCBandera, Bell, Blanco, Bosque, Brown, Burnet and 42 more5 hr
Mar 4, 11:52 AM CSTMesoscale DiscussionSPCArcher, Baylor, Brown, Callahan, Clay, Coleman and 17 more53 min
Mar 4, 11:52 AM CSTMesoscale DiscussionSPCAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 15 more113 min
Mar 4, 1:02 PM CSTMesoscale DiscussionSPCArcher, Baylor, Clay, Jack, Montague, Palo Pinto and 6 more88 min
Mar 4, 1:25 PM CSTMesoscale DiscussionSPCFannin65 min
Mar 4, 2:05 PM CSTTornado WatchSPCCooke6 hr
Mar 4, 2:18 PM CSTMesoscale DiscussionSPCAnderson, Bowie, Camp, Cass, Cherokee, Delta and 18 more57 min
Mar 4, 3:00 PM CSTTornado WatchSPCAnderson, Bowie, Camp, Cass, Cherokee, Delta and 25 more6 hr
Mar 4, 4:41 PM CSTMesoscale DiscussionSPCBowie, Camp, Cass, Franklin, Gregg, Harrison and 6 more2 hr

Nearby

Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004

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.