Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 203

May 13, 200412 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 13, 2004, 6:55 PM CDT for 12 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 13, 2004, 6:55 PM CDT (23:55 UTC)
Expired
May 14, 2004, 12:00 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center

Counties Bandera County, TX, Edwards County, TX, Gillespie County, TX, Kerr County, TX, Kimble County, TX, Mason County, TX, Medina County, TX, Menard County, TX, Real County, TX, Schleicher County, TX, Sutton County, TX, Uvalde County, TX

The radar

The San Angelo radar (KSJT), 113 km from the middle of the area, began a volume at 23:56 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

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

IssuedProductOfficeCountiesLasted
May 13, 6:57 PM CDTTornado WarningSJTMason33 min
May 13, 6:58 PM CDTSevere Thunderstorm WarningSJTMenard62 min
May 13, 7:25 PM CDTTornado WarningEWXGillespie65 min
May 13, 7:31 PM CDTSevere Thunderstorm WarningSJTMason59 min
May 13, 7:52 PM CDTSevere Thunderstorm WarningSJTSchleicher23 min
May 13, 8:19 PM CDTSevere Thunderstorm WarningSJTMenard41 min
May 13, 8:22 PM CDTSevere Thunderstorm WarningSJTSchleicher38 min
May 13, 8:44 PM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie61 min
May 13, 9:11 PM CDTFlash Flood WarningEWXGillespie2 hr
May 13, 10:33 PM CDTSevere Thunderstorm WarningEWXBandera, Real57 min
May 13, 11:10 PM CDTFlash Flood WarningEWXKerr3 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

Del Rio, TX (KDRT), launched 12:00Z, 11.9 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, Del Rio, TX at 12:00Z on 2004-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3925 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, Del Rio, TX at 12:00Z on 2004-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 88 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
3925 J/kg
Mixed-layer CIN
-42 J/kg
Mixed-layer LCL
585 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
88 m²/s²
0-3 km storm-relative helicity
190 m²/s²
Significant tornado parameter
1.3
Supercell composite
7.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 12, 8:04 PM CDTMesoscale DiscussionSPCArcher, Baylor, Callahan, Fisher, Foard, Hardeman and 13 more86 min
May 13, 3:52 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Bastrop, Brazos, Burleson and 27 more83 min
May 13, 8:30 AM CDTTornado WatchSPCAngelina, Austin, Bastrop, Brazos, Burleson, Caldwell and 17 more6 hr
May 13, 9:54 AM CDTMesoscale DiscussionSPCAngelina, Austin, Bastrop, Brazos, Burleson, Caldwell and 17 more96 min
May 13, 10:20 AM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Cottle, Dickens, Foard and 10 more115 min
May 13, 10:45 AM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Clay, Foard, Hardeman, Knox and 2 more6 hr
May 13, 12:10 PM CDTTornado WatchSPCAngelina, Austin, Brazoria, Chambers, Colorado, Fayette and 22 more6 hr
May 13, 12:26 PM CDTMesoscale DiscussionSPCBandera, Brown, Callahan, Coke, Coleman, Concho and 26 more2 hr
May 13, 12:48 PM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Foard, Haskell, Knox and 4 more117 min
May 13, 12:55 PM CDTTornado WatchSPCBrown, Callahan, Coleman, Concho, Eastland, Haskell and 14 more6 hr
May 13, 1:38 PM CDTMesoscale DiscussionSPCAustin, Brazoria, Chambers, Colorado, Fayette, Fort Bend and 15 more97 min
May 13, 2:30 PM CDTTornado WatchSPCAtascosa, Bandera, Bastrop, Bexar, Caldwell, Comal and 21 more6 hr
May 13, 2:48 PM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Haskell, Wichita87 min
May 13, 2:57 PM CDTMesoscale DiscussionSPCBrown, Callahan, Coleman, Concho, Eastland, Haskell and 14 more2 hr
May 13, 3:34 PM CDTMesoscale DiscussionSPCAtascosa, Bandera, Bastrop, Bexar, Caldwell, Comal and 21 more86 min
May 13, 5:22 PM CDTMesoscale DiscussionSPCAngelina, Austin, Brazoria, Chambers, Colorado, Fort Bend and 17 more53 min
May 13, 5:54 PM CDTMesoscale DiscussionSPCBrown, Callahan, Coleman, Concho, Eastland, Haskell and 14 more96 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.