Alert archive / Texas / Tornado Watches in 2008
Tornado Watch 324
The Storm Prediction Center issued this tornado watch at May 15, 2008, 1:16 AM CDT for 16 counties in Arkansas; 20 parishes in Louisiana; 35 counties in Texas. It was in force for 6 hr.
The area
The outline as issued.
The facts
- Issued
- May 15, 2008, 1:16 AM CDT (06:16 UTC)
- Expired
- May 15, 2008, 7:08 AM CDT
- In force
- 6 hr
- Issued by
- the Storm Prediction Center
All 71 counties
Bradley County, AR, Calhoun County, AR, Clark County, AR, Cleveland County, AR, Columbia County, AR, Dallas County, AR, Hempstead County, AR, Howard County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Ouachita County, AR, Pike County, AR, Sevier County, AR, Union County, AR, Beauregard Parish, LA, Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Rapides Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Vernon Parish, LA, Webster Parish, LA, Winn Parish, LA, Angelina County, TX, Bowie County, TX, Brazos County, TX, Burleson County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Gregg County, TX, Grimes County, TX, Hardin County, TX, Harrison County, TX, Houston County, TX, Jasper County, TX, Liberty County, TX, Madison County, TX, Marion County, TX, Montgomery County, TX, Morris 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, Titus County, TX, Trinity County, TX, Tyler County, TX, Upshur County, TX, Walker County, TX, Washington County, TX, Wood County, TX
The radar
The Shreveport radar (KSHV), 116 km from the middle of the area, began a volume at 06:19 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
21 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 1:16 AM CDT | Severe Thunderstorm Warning | SHV | Camp, Cass, Franklin, Gregg, Harrison, Marion and 4 more | 29 min |
| May 15, 1:44 AM CDT | Severe Thunderstorm Warning | HGX | Polk, Trinity | 31 min |
| May 15, 1:49 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Nacogdoches | 41 min |
| May 15, 2:06 AM CDT | Severe Thunderstorm Warning | LCH | Jasper, Tyler | 39 min |
| May 15, 2:14 AM CDT | Severe Thunderstorm Warning | HGX | Polk | 16 min |
| May 15, 2:18 AM CDT | Flash Flood Warning | SHV | Angelina, Nacogdoches | 3 hr |
| May 15, 2:21 AM CDT | Tornado Warning | LCH | Jasper, Tyler | 24 min |
| May 15, 2:29 AM CDT | Tornado Warning | HGX | Montgomery, San Jacinto | 16 min |
| May 15, 2:30 AM CDT | Severe Thunderstorm Warning | SHV | Angelina, Sabine, San Augustine, Shelby | 45 min |
| May 15, 2:46 AM CDT | Severe Thunderstorm Warning | LCH | Jasper, Tyler | 44 min |
| May 15, 3:15 AM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 45 min |
| May 15, 3:30 AM CDT | Tornado Warning | LCH | Newton | 15 min |
| May 15, 3:51 AM CDT | Severe Thunderstorm Warning | SHV | Natchitoches, Sabine | 39 min |
| May 15, 3:59 AM CDT | Tornado Warning | LCH | Jasper, Newton | 16 min |
| May 15, 4:06 AM CDT | Severe Thunderstorm Warning | LCH | Rapides, Vernon | 39 min |
| May 15, 4:15 AM CDT | Severe Thunderstorm Warning | LCH | Beauregard, Calcasieu | 45 min |
| May 15, 4:31 AM CDT | Severe Thunderstorm Warning | SHV | Grant, Winn | 44 min |
| May 15, 4:41 AM CDT | Severe Thunderstorm Warning | LCH | Allen, Avoyelles, Beauregard, Evangeline, Rapides, Vernon | 64 min |
| May 15, 4:58 AM CDT | Severe Thunderstorm Warning | LCH | Acadia, Allen, Beauregard, Calcasieu, Cameron, Jefferson Davis | 47 min |
| May 15, 5:06 AM CDT | Severe Thunderstorm Warning | SHV | Grant, LaSalle, Winn | 39 min |
| May 15, 5:42 AM CDT | Severe Thunderstorm Warning | SHV | LaSalle | 33 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
Shreveport, LA (KSHV), launched 00:00Z, 6.3 hours before the alert went out and 124 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 0 m above ground
- 0-6 km bulk shear
- 64 kt
- 0-1 km storm-relative helicity
- 198 m²/s²
- 0-3 km storm-relative helicity
- 231 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 15, 4:16 AM CDT | Tornado Watch | SPC | Ashley, Chicot, Desha, Drew, Lincoln | 7 hr |
| May 15, 5:54 AM CDT | Mesoscale Discussion | SPC | Ashley, Chicot, Drew | 96 min |
| May 15, 2:11 AM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 11 more | 94 min |
| May 15, 7:41 AM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 17 more | 94 min |
| May 15, 8:42 AM CDT | Mesoscale Discussion | SPC | Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Jefferson and 17 more | 63 min |
| May 14, 7:06 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Blanco, Brown, Burnet and 30 more | 54 min |
| May 14, 7:50 PM CDT | Tornado Watch | SPC | Bastrop, Bell, Bosque, Brazos, Burleson, Caldwell and 30 more | 6 hr |
| May 14, 7:53 PM CDT | Mesoscale Discussion | SPC | Brooks, Hidalgo, Jim Hogg, Starr, Zapata | 67 min |
| May 14, 10:02 PM CDT | Mesoscale Discussion | SPC | Austin, Bandera, Bastrop, Bell, Bexar, Blanco and 76 more | 88 min |
| May 14, 11:40 PM CDT | Mesoscale Discussion | SPC | Anderson, Angelina, Cherokee, Gregg, Henderson, Houston and 9 more | 65 min |
| May 15, 6:24 PM CDT | Mesoscale Discussion | SPC | Dimmit, Maverick | 66 min |
Nearby
Tornado Watches in Texas, 2008Tornado Watches in Louisiana, 2008Tornado Watches in Arkansas, 2008Every 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.