Alert archive / Texas / Severe Thunderstorm Watches in 2005

Severe Thunderstorm Watch 615

July 6, 2005Ellis County, Oklahoma; 26 counties in Texas

The Storm Prediction Center issued this severe thunderstorm watch at Jul 6, 2005, 7:25 PM CDT for Ellis County, Oklahoma; 26 counties in Texas. It was in force for 4 hr.

The area

The outline as issued.

The facts

Issued
Jul 6, 2005, 7:25 PM CDT (00:25 UTC)
Expired
Jul 6, 2005, 11:41 PM CDT
In force
4 hr
Issued by
the Storm Prediction Center
All 27 counties

Ellis County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lamb County, TX, Lipscomb County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 46 km from the middle of the area, began a volume at 00:25 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.

Discussions around it

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

The nearest sounding before it

Dodge City, (KDDC), launched 00:00Z, 0.4 hours before the alert went out and 282 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, Dodge City, at 00:00Z on 2005-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1722 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, Dodge City, at 00:00Z on 2005-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 41 square meters per square second.1939Sfc1 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
1722 J/kg
Mixed-layer CIN
-61 J/kg
Mixed-layer LCL
1307 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
41 m²/s²
0-3 km storm-relative helicity
211 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 6, 9:23 PM CDTMesoscale DiscussionSPCCimarron37 min
Jul 7, 3:55 PM CDTSevere Thunderstorm WatchSPCCimarron5 hr
Jul 6, 11:13 PM CDTMesoscale DiscussionSPCAndrews, Armstrong, Borden, Briscoe, Carson, Castro and 34 more92 min
Jul 6, 11:45 PM CDTSevere Thunderstorm WatchSPCAndrews, Bailey, Borden, Briscoe, Castro, Cochran and 27 more5 hr
Jul 7, 2:40 AM CDTMesoscale DiscussionSPCAndrews, Bailey, Borden, Briscoe, Castro, Childress and 32 more65 min
Jul 7, 4:03 AM CDTMesoscale DiscussionSPCAndrews, Archer, Bailey, Baylor, Borden, Briscoe and 38 more57 min
Jul 7, 9:33 AM CDTMesoscale DiscussionSPCAnderson, Bell, Brazos, Falls, Freestone, Grimes and 12 more117 min

Nearby

Severe Thunderstorm Watches in Texas, 2005Severe Thunderstorm Watches in Oklahoma, 2005Every severe thunderstorm watch in 2005

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.