Alert archive / Texas / Mesoscale Discussions in 2004

Mesoscale Discussion 1482

July 3, 20044 counties in Oklahoma; 34 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Jul 3, 2004, 6:15 AM CDT for 4 counties in Oklahoma; 34 counties in Texas. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued
Jul 3, 2004, 6:15 AM CDT (11:15 UTC)
Expired
Jul 3, 2004, 7:15 AM CDT
In force
60 min
Issued by
the Storm Prediction Center
All 38 counties

Bryan County, OK, Choctaw County, OK, Love County, OK, Marshall County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Fannin County, TX, Franklin County, TX, Grayson County, TX, Gregg County, TX, Harrison County, TX, Henderson County, TX, Hopkins County, TX, Hunt County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Marion County, TX, Montague County, TX, Morris County, TX, Panola County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Smith County, TX, Tarrant County, TX, Titus County, TX, Upshur County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 11.3 hours before the alert went out and 139 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 00:00Z on 2004-07-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3016 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 00:00Z on 2004-07-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.1939Sfc1 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
3016 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
1345 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
198 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.6

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
Jul 2, 7:17 PM CDTMesoscale DiscussionSPCComanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more88 min
Jul 2, 7:51 PM CDTMesoscale DiscussionSPCCimarron, Texas84 min
Jul 2, 8:26 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Coal, Creek, Delaware, Haskell and 14 more94 min
Jul 2, 9:19 PM CDTMesoscale DiscussionSPCBeaver, Cimarron, Ellis, Harper, Roger Mills, Texas56 min
Jul 2, 10:39 PM CDTMesoscale DiscussionSPCAdair, Cherokee, Creek, Delaware, Haskell, Latimer and 11 more96 min
Jul 3, 1:01 AM CDTMesoscale DiscussionSPCAtoka, Caddo, Canadian, Carter, Cleveland, Coal and 35 more89 min
Jul 3, 1:15 AM CDTSevere Thunderstorm WatchSPCCaddo, Carter, Comanche, Cotton, Garvin, Grady and 10 more6 hr
Jul 3, 3:19 AM CDTMesoscale DiscussionSPCHaskell, Latimer, LeFlore, McCurtain, McIntosh, Muskogee and 3 more2 hr
Jul 3, 3:32 AM CDTMesoscale DiscussionSPCCarter, Cotton, Jefferson, Love, Tillman118 min
Jul 3, 4:05 AM CDTSevere Thunderstorm WatchSPCCamp, Clay, Collin, Cooke, Dallas, Delta and 22 more4 hr

Nearby

Mesoscale Discussions in Texas, 2004Mesoscale Discussions in Oklahoma, 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.