Alert archive / Texas / Tornado Watches in 2006

Tornado Watch 121

April 1, 200617 counties in Oklahoma; 21 counties in Texas

The Storm Prediction Center issued this tornado watch at Apr 1, 2006, 2:01 PM CST for 17 counties in Oklahoma; 21 counties in Texas. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Apr 1, 2006, 2:01 PM CST (20:01 UTC)
Expired: Apr 1, 2006, 10:00 PM CST
In force: 8 hr
Issued by: the Storm Prediction Center

All 38 counties

Beaver County, OK, Beckham County, OK, Custer County, OK, Dewey County, OK, Ellis County, OK, Greer County, OK, Harmon County, OK, Harper County, OK, Jackson County, OK, Kiowa County, OK, Major County, OK, Roger Mills County, OK, Texas County, OK, Tillman County, OK, Washita County, OK, Woods County, OK, Woodward County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hardeman County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Motley County, TX, Ochiltree County, TX, Roberts County, TX, Wheeler County, TX, Wilbarger County, TX

The radar

The Dodge City radar (KDDC), 148 km from the middle of the area, began a volume at 20:06 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.

Issued	Product	Office	Counties	Lasted
Apr 1, 3:16 PM CST	Severe Thunderstorm Warning	AMA	Beaver, Texas	59 min
Apr 1, 3:36 PM CST	Severe Thunderstorm Warning	LUB	Floyd	23 min
Apr 1, 3:43 PM CST	Severe Thunderstorm Warning	AMA	Hutchinson	47 min
Apr 1, 3:44 PM CST	Severe Thunderstorm Warning	LUB	Motley	46 min
Apr 1, 4:02 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Greer, Harmon	43 min
Apr 1, 4:12 PM CST	Severe Thunderstorm Warning	AMA	Ochiltree	63 min
Apr 1, 4:29 PM CST	Severe Thunderstorm Warning	LUB	Hall, Motley	61 min
Apr 1, 4:42 PM CST	Severe Thunderstorm Warning	LUB	Cottle	48 min
Apr 1, 4:43 PM CST	Severe Thunderstorm Warning	AMA	Collingsworth	62 min
Apr 1, 4:44 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Greer	46 min
Apr 1, 4:47 PM CST	Severe Thunderstorm Warning	AMA	Roberts	28 min
Apr 1, 4:51 PM CST	Severe Thunderstorm Warning	LUB	Childress	54 min
Apr 1, 5:01 PM CST	Severe Thunderstorm Warning	AMA	Beaver	59 min
Apr 1, 5:26 PM CST	Severe Thunderstorm Warning	OUN	Beckham	49 min
Apr 1, 5:30 PM CST	Severe Thunderstorm Warning	LUB	Cottle	45 min
Apr 1, 5:31 PM CST	Severe Thunderstorm Warning	OUN	Harmon, Jackson	44 min
Apr 1, 5:45 PM CST	Severe Thunderstorm Warning	LUB	Childress	45 min
Apr 1, 5:57 PM CST	Severe Thunderstorm Warning	OUN	Woodward	48 min
Apr 1, 6:04 PM CST	Severe Thunderstorm Warning	OUN	Beckham, Custer, Washita	41 min
Apr 1, 6:12 PM CST	Severe Thunderstorm Warning	OUN	Greer, Harmon, Jackson, Kiowa, Tillman	48 min
Apr 1, 6:22 PM CST	Severe Thunderstorm Warning	OUN	Harper	38 min
Apr 1, 6:44 PM CST	Severe Thunderstorm Warning	OUN	Custer, Washita	46 min
Apr 1, 6:55 PM CST	Severe Thunderstorm Warning	OUN	Comanche, Greer, Harmon, Jackson, Kiowa, Tillman	50 min
Apr 1, 7:04 PM CST	Severe Thunderstorm Warning	OUN	Woodward	41 min
Apr 1, 7:46 PM CST	Severe Thunderstorm Warning	OUN	Tillman	44 min
Apr 1, 8:09 PM CST	Severe Thunderstorm Warning	OUN	Comanche, Kiowa	51 min
Apr 1, 8:28 PM CST	Severe Thunderstorm Warning	OUN	Tillman	47 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

Dodge City, (KDDC), launched 12:00Z, 8.0 hours before the alert went out and 150 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2363 m above ground
0-6 km bulk shear: 29 kt
0-1 km storm-relative helicity: 312 m²/s²
0-3 km storm-relative helicity: 841 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.

Issued	Product	Office	Counties	Lasted
Apr 1, 12:12 PM CST	Mesoscale Discussion	SPC	Clark, Finney, Ford, Grant, Gray, Haskell and 9 more	93 min
Apr 1, 3:16 PM CST	Mesoscale Discussion	SPC	Decatur, Ellis, Gove, Graham, Logan, Norton and 10 more	89 min
Apr 1, 4:01 PM CST	Tornado Watch	SPC	Barton, Decatur, Ellsworth, Gove, Graham, Jewell and 10 more	6 hr
Apr 1, 4:08 PM CST	Mesoscale Discussion	SPC	Barber, Clark, Comanche, Edwards, Finney, Ford and 12 more	2 hr
Apr 1, 5:37 PM CST	Mesoscale Discussion	SPC	Butler, Chase, Chautauqua, Cowley, Dickinson, Elk and 9 more	83 min
Apr 1, 1:07 AM CST	Mesoscale Discussion	SPC	Carter, Coal, Comanche, Cotton, Garvin, Grady and 11 more	2 hr
Apr 1, 10:06 AM CST	Mesoscale Discussion	SPC	Adair, Cherokee, Choctaw, Haskell, Latimer, LeFlore and 8 more	114 min
Apr 1, 3:03 PM CST	Severe Thunderstorm Watch	SPC	McCurtain	7 hr
Mar 31, 10:21 PM CST	Mesoscale Discussion	SPC	Archer, Baylor, Borden, Crosby, Dickens, Garza and 6 more	84 min
Apr 1, 2:21 PM CST	Mesoscale Discussion	SPC	Baylor, Callahan, Coke, Coleman, Crosby, Dickens and 16 more	84 min

Nearby

Tornado Watches in Texas, 2006 Tornado Watches in Oklahoma, 2006 Every tornado watch in 2006

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.