Alert archive / Texas / Severe Thunderstorm Watches in 2004

Severe Thunderstorm Watch 194

May 12, 200416 counties in Oklahoma; 20 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 12, 2004, 5:10 PM CDT for 16 counties in Oklahoma; 20 counties in Texas. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 12, 2004, 5:10 PM CDT (22:10 UTC)
Expired
May 12, 2004, 10:00 PM CDT
In force
5 hr
Issued by
the Storm Prediction Center
All 36 counties

Beckham County, OK, Blaine County, OK, Caddo County, OK, Canadian County, OK, Comanche County, OK, Cotton County, OK, Custer County, OK, Dewey County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kingfisher County, OK, Kiowa County, OK, Roger Mills County, OK, Tillman County, OK, Washita County, OK, Archer County, TX, Baylor County, TX, Callahan County, TX, Cottle County, TX, Fisher County, TX, Foard County, TX, Hardeman County, TX, Haskell County, TX, Jones County, TX, King County, TX, Knox County, TX, Nolan County, TX, Shackelford County, TX, Stephens County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wilbarger County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 82 km from the middle of the area, began a volume at 22:11 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

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

IssuedProductOfficeCountiesLasted
May 12, 5:36 PM CDTSevere Thunderstorm WarningSJTHaskell54 min
May 12, 6:13 PM CDTSevere Thunderstorm WarningOUNKnox47 min
May 12, 6:16 PM CDTSevere Thunderstorm WarningOUNKiowa44 min
May 12, 6:25 PM CDTSevere Thunderstorm WarningOUNWilbarger50 min
May 12, 6:56 PM CDTSevere Thunderstorm WarningOUNKnox34 min
May 12, 6:58 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita32 min
May 12, 7:02 PM CDTSevere Thunderstorm WarningOUNHardeman28 min
May 12, 7:11 PM CDTSevere Thunderstorm WarningOUNWilbarger49 min
May 12, 7:22 PM CDTSevere Thunderstorm WarningOUNJackson38 min
May 12, 7:28 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita47 min
May 12, 7:29 PM CDTSevere Thunderstorm WarningOUNHardeman46 min
May 12, 8:12 PM CDTSevere Thunderstorm WarningOUNKiowa, Washita48 min
May 12, 8:54 PM CDTSevere Thunderstorm WarningOUNCuster51 min
May 12, 8:58 PM CDTSevere Thunderstorm WarningOUNCaddo, Washita47 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

Fort Sill, OK (KFSI), launched 12:00Z, 10.2 hours before the alert went out and 143 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 Sill, OK at 12:00Z on 2004-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Sill, OK at 12:00Z on 2004-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 16 square meters per square second.1939587897Sfc1 km3 km6 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3988 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
16 m²/s²
0-3 km storm-relative helicity
-13 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
May 11, 7:19 PM CDTMesoscale DiscussionSPCBeaver, Texas116 min
May 11, 9:18 PM CDTMesoscale DiscussionSPCCimarron, Texas57 min
May 12, 3:23 PM CDTMesoscale DiscussionSPCHarper2 hr
May 12, 4:00 PM CDTTornado WatchSPCAlfalfa, Ellis, Grant, Harper, Kay, Major and 2 more6 hr
May 12, 4:41 PM CDTMesoscale DiscussionSPCBeckham, Blaine, Caddo, Comanche, Custer, Dewey and 8 more94 min

Nearby

Severe Thunderstorm Watches in Texas, 2004Severe Thunderstorm Watches in Oklahoma, 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.