Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 314

May 27, 200428 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2004, 5:35 PM CDT for 28 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 27, 2004, 5:35 PM CDT (22:35 UTC)
Expired
May 27, 2004, 11:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 28 counties

Bosque County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Grayson County, TX, Hamilton County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Navarro County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Somervell County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 46 km from the middle of the area, began a volume at 22:37 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.

Warnings issued inside it

7 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

IssuedProductOfficeCountiesLasted
May 27, 5:48 PM CDTSevere Thunderstorm WarningFWDJohnson, Tarrant57 min
May 27, 5:55 PM CDTSevere Thunderstorm WarningFWDParker65 min
May 27, 6:14 PM CDTSevere Thunderstorm WarningFWDErath76 min
May 27, 6:32 PM CDTSevere Thunderstorm WarningFWDTarrant58 min
May 27, 6:50 PM CDTSevere Thunderstorm WarningFWDDenton55 min
May 27, 7:06 PM CDTFlash Flood WarningFWDTarrant3 hr
May 27, 7:45 PM CDTFlash Flood WarningFWDCollin, Dallas3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 10.6 hours before the alert went out and 20 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 2004-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 743 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 2004-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 278 square meters per square second.19395878Sfc1 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
743 J/kg
Mixed-layer CIN
-397 J/kg
Mixed-layer LCL
653 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
278 m²/s²
0-3 km storm-relative helicity
261 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
May 26, 8:29 PM CDTMesoscale DiscussionSPCChildress91 min
May 26, 8:54 PM CDTMesoscale DiscussionSPCChildress, Cottle, Fisher, Foard, Hardeman, Haskell and 4 more66 min
May 27, 6:10 AM CDTMesoscale DiscussionSPCAndrews, Borden, Coke, Crane, Crockett, Crosby and 25 more3 hr
May 27, 10:29 AM CDTMesoscale DiscussionSPCAndrews, Archer, Baylor, Borden, Briscoe, Callahan and 54 more2 hr
May 27, 2:45 PM CDTSevere Thunderstorm WatchSPCBrown, Callahan, Coke, Coleman, Comanche, Concho and 29 more6 hr
May 27, 4:04 PM CDTMesoscale DiscussionSPCBosque, Brown, Callahan, Coke, Coleman, Collin and 50 more116 min

Nearby

Severe Thunderstorm Watches in Texas, 2004Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.