Alert archive / Texas / Severe Thunderstorm Watches in 2003

Severe Thunderstorm Watch 415

May 19, 200318 counties in Oklahoma; 20 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at May 19, 2003, 4:05 PM CDT for 18 counties in Oklahoma; 20 counties in Texas. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
May 19, 2003, 4:05 PM CDT (21:05 UTC)
Expired
May 19, 2003, 10:00 PM CDT
In force
6 hr
Issued by
the Storm Prediction Center
All 38 counties

Carter County, OK, Cleveland County, OK, Coal County, OK, Cotton County, OK, Garvin County, OK, Grady County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, McClain County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Seminole County, OK, Stephens County, OK, Archer County, TX, Baylor County, TX, Callahan County, TX, Clay County, TX, Cooke County, TX, Eastland County, TX, Erath County, TX, Jack County, TX, Jones County, TX, Montague County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Shackelford County, TX, Stephens County, TX, Taylor County, TX, Throckmorton County, TX, Wichita County, TX, Wise County, TX, Young County, TX

The radar

The Altus AFB radar (KFDR), 115 km from the middle of the area, began a volume at 21:04 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

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

IssuedProductOfficeCountiesLasted
May 19, 4:32 PM CDTSevere Thunderstorm WarningSJTNolan43 min
May 19, 4:59 PM CDTSevere Thunderstorm WarningOUNComanche, Stephens46 min
May 19, 5:05 PM CDTSevere Thunderstorm WarningOUNClay40 min
May 19, 5:15 PM CDTSevere Thunderstorm WarningSJTNolan, Taylor60 min
May 19, 5:17 PM CDTSevere Thunderstorm WarningFWDYoung43 min
May 19, 5:30 PM CDTSevere Thunderstorm WarningOUNGrady45 min
May 19, 5:39 PM CDTSevere Thunderstorm WarningOUNStephens51 min
May 19, 5:48 PM CDTSevere Thunderstorm WarningOUNCleveland, McClain42 min
May 19, 6:23 PM CDTSevere Thunderstorm WarningOUNStephens37 min
May 19, 6:35 PM CDTTornado WarningOUNStephens25 min
May 19, 6:40 PM CDTSevere Thunderstorm WarningOUNPottawatomie50 min
May 19, 6:44 PM CDTSevere Thunderstorm WarningOUNGrady, McClain46 min
May 19, 6:57 PM CDTTornado WarningOUNCarter, Jefferson, Stephens33 min
May 19, 7:01 PM CDTSevere Thunderstorm WarningOUNGarvin, Murray44 min
May 19, 7:08 PM CDTSevere Thunderstorm WarningOUNMcClain, Pontotoc37 min
May 19, 7:27 PM CDTSevere Thunderstorm WarningOUNCarter48 min
May 19, 7:43 PM CDTSevere Thunderstorm WarningOUNPontotoc62 min
May 19, 8:06 PM CDTSevere Thunderstorm WarningOUNJefferson39 min
May 19, 8:26 PM CDTSevere Thunderstorm WarningOUNCarter, Love, Seminole49 min
May 19, 8:59 PM CDTSevere Thunderstorm WarningOUNHughes46 min
May 19, 9:11 PM CDTSevere Thunderstorm WarningOUNLove49 min
May 19, 9:15 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson75 min
May 19, 9:42 PM CDTSevere Thunderstorm WarningOUNCotton48 min
May 19, 9:43 PM CDTSevere Thunderstorm WarningOUNHughes47 min
May 19, 9:48 PM CDTSevere Thunderstorm WarningOUNPottawatomie, Seminole42 min
May 19, 9:48 PM CDTSevere Thunderstorm WarningTSAPittsburg57 min
May 19, 9:49 PM CDTSevere Thunderstorm WarningOUNGarvin, Grady, McClain41 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, 9.1 hours before the alert went out and 140 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 2003-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 196 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 2003-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 330 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
196 J/kg
Mixed-layer CIN
-776 J/kg
Mixed-layer LCL
1418 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
330 m²/s²
0-3 km storm-relative helicity
360 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 19, 2:44 PM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Comanche, Cotton, Garvin and 10 more91 min
May 19, 3:55 PM CDTMesoscale DiscussionSPCKay, Logan, Noble, Nowata, Osage, Pawnee and 2 more95 min
May 19, 6:58 PM CDTMesoscale DiscussionSPCCarter, Cleveland, Cotton, Garvin, Grady, Hughes and 10 more2 hr

Nearby

Severe Thunderstorm Watches in Texas, 2003Severe Thunderstorm Watches in Oklahoma, 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.