Alert archive / Texas / Tornado Watches in 2008

Tornado Watch 319

May 14, 200811 parishes in Louisiana; 34 counties in Texas

The Storm Prediction Center issued this tornado watch at May 14, 2008, 7:50 AM CDT for 11 parishes in Louisiana; 34 counties in Texas. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 14, 2008, 7:50 AM CDT (12:50 UTC)
Expired: May 14, 2008, 3:00 PM CDT
In force: 7 hr
Issued by: the Storm Prediction Center

All 45 counties

Beauregard Parish, LA, Caldwell Parish, LA, De Soto Parish, LA, Grant Parish, LA, LaSalle Parish, LA, Natchitoches Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Vernon Parish, LA, Winn Parish, LA, Anderson County, TX, Angelina County, TX, Austin County, TX, Brazos County, TX, Burleson County, TX, Cherokee County, TX, Colorado County, TX, Freestone County, TX, Gregg County, TX, Grimes County, TX, Hardin County, TX, Harris County, TX, Henderson County, TX, Houston County, TX, Jasper County, TX, Leon County, TX, Liberty County, TX, Madison County, TX, Montgomery County, TX, Nacogdoches County, TX, Newton County, TX, Panola County, TX, Polk County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Smith County, TX, Trinity County, TX, Tyler County, TX, Walker County, TX, Waller County, TX, Washington County, TX

The radar

The Shreveport radar (KSHV), 127 km from the middle of the area, began a volume at 12:50 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

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

Issued	Product	Office	Counties	Lasted
May 14, 7:58 AM CDT	Severe Thunderstorm Warning	HGX	Brazos, Burleson, Grimes	47 min
May 14, 8:38 AM CDT	Severe Thunderstorm Warning	HGX	Grimes, Montgomery, Walker	52 min
May 14, 8:56 AM CDT	Flash Flood Warning	FWD	Henderson, Van Zandt	2 hr
May 14, 9:41 AM CDT	Flash Flood Warning	SHV	Gregg, Rusk, Smith, Upshur, Wood	2 hr
May 14, 9:42 AM CDT	Tornado Warning	HGX	Washington	36 min
May 14, 10:03 AM CDT	Severe Thunderstorm Warning	HGX	Montgomery, Polk, San Jacinto, Walker	57 min
May 14, 10:13 AM CDT	Tornado Warning	HGX	Montgomery, Polk, San Jacinto, Walker	47 min
May 14, 10:38 AM CDT	Tornado Warning	HGX	Montgomery, San Jacinto	52 min
May 14, 10:50 AM CDT	Tornado Warning	HGX	Polk, San Jacinto	55 min
May 14, 11:20 AM CDT	Severe Thunderstorm Warning	HGX	Liberty, Polk, San Jacinto	40 min
May 14, 11:45 AM CDT	Severe Thunderstorm Warning	HGX	Polk	45 min
May 14, 11:54 AM CDT	Tornado Warning	LCH	Hardin, Tyler	36 min
May 14, 12:03 PM CDT	Tornado Warning	HGX	Polk	27 min
May 14, 12:07 PM CDT	Severe Thunderstorm Warning	LCH	Hardin	53 min
May 14, 12:32 PM CDT	Severe Thunderstorm Warning	LCH	Tyler	28 min
May 14, 2:54 PM CDT	Severe Thunderstorm Warning	LCH	Beauregard	36 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 0.8 hours before the alert went out and 212 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: 1534 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 494 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 182 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 9.5

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 13, 7:11 PM CDT	Mesoscale Discussion	SPC	Acadia, Ascension, Assumption, Avoyelles, Bienville, Bossier and 45 more	2 hr
May 14, 2:28 AM CDT	Mesoscale Discussion	SPC	Bienville, Bossier, Caddo, Claiborne, De Soto, Natchitoches and 3 more	92 min
May 14, 7:31 AM CDT	Mesoscale Discussion	SPC	Beauregard, Bienville, De Soto, Grant, Jackson, LaSalle and 7 more	119 min
May 14, 10:23 AM CDT	Mesoscale Discussion	SPC	Beauregard, Bienville, De Soto, Grant, Jackson, LaSalle and 7 more	97 min
May 14, 1:55 PM CDT	Mesoscale Discussion	SPC	Ascension, Avoyelles, Catahoula, Concordia, East Baton Rouge, East Feliciana and 10 more	65 min
May 14, 2:04 PM CDT	Tornado Watch	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 31 more	7 hr
May 14, 5:12 PM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 34 more	63 min
May 13, 8:05 PM CDT	Mesoscale Discussion	SPC	Brown, Clay, Coleman, Comanche, Cooke, Denton and 10 more	85 min
May 13, 8:29 PM CDT	Mesoscale Discussion	SPC	Bandera, Blanco, Burnet, Comal, Concho, Edwards and 15 more	91 min
May 13, 8:53 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Bell, Bosque, Brown, Callahan, Coke and 56 more	7 hr
May 13, 9:54 PM CDT	Severe Thunderstorm Watch	SPC	Bastrop, Brazos, Burleson, Caldwell, Comal, Fayette and 5 more	6 hr
May 13, 11:41 PM CDT	Mesoscale Discussion	SPC	Bastrop, Bell, Blanco, Bosque, Brazos, Burleson and 18 more	94 min
May 14, 12:50 AM CDT	Mesoscale Discussion	SPC	Archer, Armstrong, Baylor, Briscoe, Childress, Clay and 26 more	85 min
May 14, 1:19 AM CDT	Mesoscale Discussion	SPC	Atascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 19 more	56 min
May 14, 1:40 AM CDT	Tornado Watch	SPC	Atascosa, Bandera, Bexar, Comal, Dimmit, Edwards and 12 more	6 hr
May 14, 2:59 AM CDT	Mesoscale Discussion	SPC	Austin, Bastrop, Bell, Blanco, Brazos, Burleson and 26 more	91 min
May 14, 3:39 AM CDT	Severe Thunderstorm Watch	SPC	Austin, Bastrop, Bell, Blanco, Brazos, Burleson and 25 more	6 hr
May 14, 5:13 AM CDT	Mesoscale Discussion	SPC	Austin, Bastrop, Bell, Blanco, Brazos, Burleson and 29 more	92 min
May 14, 5:38 AM CDT	Mesoscale Discussion	SPC	Atascosa, Bandera, Bexar, Edwards, Frio, Kerr and 7 more	97 min
May 14, 6:42 AM CDT	Mesoscale Discussion	SPC	Austin, Bastrop, Bell, Blanco, Brazos, Burleson and 30 more	63 min
May 14, 12:12 PM CDT	Mesoscale Discussion	SPC	Andrews, Dawson, Gaines, Terry, Yoakum	93 min
May 14, 12:47 PM CDT	Tornado Watch	SPC	Andrews, Borden, Cochran, Coke, Crane, Dawson and 22 more	6 hr
May 14, 3:33 PM CDT	Mesoscale Discussion	SPC	Crockett, Edwards, Kerr, Kimble, Kinney, Menard and 5 more	27 min
May 14, 3:50 PM CDT	Tornado Watch	SPC	Bandera, Blanco, Brown, Burnet, Callahan, Coleman and 37 more	7 hr
May 14, 3:58 PM CDT	Mesoscale Discussion	SPC	Anderson, Bastrop, Bell, Brazos, Burleson, Falls and 9 more	92 min
May 14, 6:08 PM CDT	Mesoscale Discussion	SPC	Andrews, Borden, Cochran, Coke, Crane, Crosby and 27 more	67 min
May 14, 6:40 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Foard, Hardeman, Knox and 2 more	95 min

Nearby

Tornado Watches in Texas, 2008 Tornado Watches in Louisiana, 2008 Every tornado watch in 2008

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.