Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 176

April 28, 200335 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Apr 28, 2003, 3:15 PM CDT for 35 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Apr 28, 2003, 3:15 PM CDT (20:15 UTC)
Expired
Apr 28, 2003, 9:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 35 counties

Andrews County, TX, Armstrong County, TX, Bailey County, TX, Borden County, TX, Briscoe County, TX, Castro County, TX, Cochran County, TX, Crane County, TX, Crosby County, TX, Dawson County, TX, Deaf Smith County, TX, Donley County, TX, Ector County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Hockley County, TX, Howard County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Parmer County, TX, Pecos County, TX, Randall County, TX, Reagan County, TX, Swisher County, TX, Terry County, TX, Upton County, TX, Ward County, TX, Winkler County, TX, Yoakum County, TX

The radar

The Midland/Odessa radar (KMAF), 67 km from the middle of the area, began a volume at 20:17 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

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

IssuedProductOfficeCountiesLasted
Apr 28, 3:51 PM CDTSevere Thunderstorm WarningMAFPecos54 min
Apr 28, 4:44 PM CDTSevere Thunderstorm WarningLUBHockley, Lubbock, Lynn, Terry46 min
Apr 28, 4:52 PM CDTSevere Thunderstorm WarningLUBHale38 min
Apr 28, 5:05 PM CDTSevere Thunderstorm WarningMAFDawson40 min
Apr 28, 5:19 PM CDTSevere Thunderstorm WarningLUBSwisher41 min
Apr 28, 5:25 PM CDTSevere Thunderstorm WarningLUBHale, Lubbock50 min
Apr 28, 5:29 PM CDTSevere Thunderstorm WarningMAFAndrews, Gaines46 min
Apr 28, 5:34 PM CDTSevere Thunderstorm WarningAMARandall41 min
Apr 28, 5:44 PM CDTSevere Thunderstorm WarningMAFDawson61 min
Apr 28, 5:49 PM CDTSevere Thunderstorm WarningMAFBorden56 min
Apr 28, 6:04 PM CDTFlash Flood WarningMAFBorden, Dawson116 min
Apr 28, 6:13 PM CDTSevere Thunderstorm WarningMAFAndrews32 min
Apr 28, 6:32 PM CDTSevere Thunderstorm WarningMAFMartin58 min
Apr 28, 6:39 PM CDTSevere Thunderstorm WarningLUBGarza51 min
Apr 28, 6:42 PM CDTTornado WarningMAFMartin48 min
Apr 28, 6:49 PM CDTSevere Thunderstorm WarningAMARandall26 min
Apr 28, 7:03 PM CDTSevere Thunderstorm WarningMAFHoward57 min
Apr 28, 7:30 PM CDTFlash Flood WarningMAFHoward2 hr
Apr 28, 7:31 PM CDTSevere Thunderstorm WarningMAFMartin, Midland59 min
Apr 28, 7:52 PM CDTSevere Thunderstorm WarningMAFAndrews38 min

Discussions around it

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

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.3 hours before the alert went out and 66 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, Midland Regional, TX at 12:00Z on 2003-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 313 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, Midland Regional, TX at 12:00Z on 2003-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
313 J/kg
Mixed-layer CIN
-307 J/kg
Mixed-layer LCL
1644 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 2:49 PM CDTMesoscale DiscussionSPCArmstrong, Bailey, Briscoe, Castro, Cochran, Crosby and 16 more116 min
Apr 28, 6:20 PM CDTSevere Thunderstorm WatchSPCCallahan, Coke, Concho, Crockett, Edwards, Fisher and 15 more4 hr

Nearby

Severe Thunderstorm Watches in Texas, 2003Every severe thunderstorm watch 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; radar from the NEXRAD Level II archive.