Alert archive / Texas / Tornado Watches in 2008
Tornado Watch 179
The Storm Prediction Center issued this tornado watch at Apr 9, 2008, 3:48 PM CDT for 12 counties in Oklahoma; 28 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 9, 2008, 3:48 PM CDT (20:48 UTC)
- Expired
- Apr 9, 2008, 10:41 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Particularly dangerous situation
- Yes
- Largest hail expected
- 3 in
- Strongest gust expected
- 70 kt
All 40 counties
Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pushmataha County, OK, Anderson County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Ellis County, TX, Fannin County, TX, Freestone County, TX, Grayson County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Limestone County, TX, McLennan County, TX, Montague County, TX, Navarro County, TX, Rains County, TX, Rockwall County, TX, Tarrant County, TX, Van Zandt County, TX, Wise County, TX, Young County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 111 km from the middle of the area, began a volume at 20:48 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.
What SPC expected
The probabilities SPC published with the watch, for the watch area over its life.
- Two or more tornadoes
- 70%
- One or more EF2 to EF5 tornadoes
- 40%
- Ten or more severe wind reports
- 70%
- One or more gusts of 65 knots or more
- 40%
- Ten or more severe hail reports
- 80%
- One or more hailstones of 2 inches or more
- 40%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
24 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 9, 4:50 PM CDT | Severe Thunderstorm Warning | OUN | Garvin, McClain, Pontotoc, Pottawatomie, Seminole | 40 min |
| Apr 9, 5:56 PM CDT | Severe Thunderstorm Warning | TSA | McIntosh, Okfuskee, Pittsburg | 64 min |
| Apr 9, 6:19 PM CDT | Severe Thunderstorm Warning | FWD | Jack | 41 min |
| Apr 9, 6:31 PM CDT | Severe Thunderstorm Warning | OUN | Pontotoc, Seminole | 44 min |
| Apr 9, 6:32 PM CDT | Severe Thunderstorm Warning | FWD | Grayson | 43 min |
| Apr 9, 6:43 PM CDT | Tornado Warning | TSA | Haskell, McIntosh, Muskogee, Pittsburg | 47 min |
| Apr 9, 6:46 PM CDT | Tornado Warning | FWD | Jack, Palo Pinto, Parker, Wise | 29 min |
| Apr 9, 6:53 PM CDT | Tornado Warning | OUN | Hughes, Pontotoc | 37 min |
| Apr 9, 7:01 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 59 min |
| Apr 9, 7:13 PM CDT | Tornado Warning | FWD | Jack, Wise | 47 min |
| Apr 9, 7:18 PM CDT | Tornado Warning | TSA | Choctaw, Pushmataha | 27 min |
| Apr 9, 7:27 PM CDT | Tornado Warning | TSA | Pittsburg | 48 min |
| Apr 9, 7:46 PM CDT | Severe Thunderstorm Warning | OUN | Atoka, Bryan, Johnston | 44 min |
| Apr 9, 7:47 PM CDT | Tornado Warning | TSA | Pushmataha | 58 min |
| Apr 9, 7:48 PM CDT | Tornado Warning | FWD | Denton, Wise | 42 min |
| Apr 9, 7:55 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw | 20 min |
| Apr 9, 8:02 PM CDT | Severe Thunderstorm Warning | TSA | Choctaw, Pushmataha | 58 min |
| Apr 9, 8:08 PM CDT | Tornado Warning | TSA | Haskell, Latimer, Pittsburg | 67 min |
| Apr 9, 8:22 PM CDT | Tornado Warning | FWD | Cooke, Denton | 38 min |
| Apr 9, 8:57 PM CDT | Tornado Warning | FWD | Cooke, Grayson | 53 min |
| Apr 9, 9:17 PM CDT | Severe Thunderstorm Warning | OUN | Atoka | 43 min |
| Apr 9, 9:35 PM CDT | Flash Flood Warning | FWD | Cooke, Grayson | 115 min |
| Apr 9, 9:45 PM CDT | Severe Thunderstorm Warning | TSA | Pittsburg | 47 min |
| Apr 9, 10:07 PM CDT | Severe Thunderstorm Warning | TSA | Latimer, LeFlore, Pushmataha | 53 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 Worth, TX (KFWD), launched 12:00Z, 8.8 hours before the alert went out and 87 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
- 488 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 295 m²/s²
- 0-3 km storm-relative helicity
- 215 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 10:36 PM CDT | Mesoscale Discussion | SPC | McCurtain | 84 min |
| Apr 8, 11:51 PM CDT | Severe Thunderstorm Watch | SPC | McCurtain | 5 hr |
| Apr 9, 3:29 AM CDT | Mesoscale Discussion | SPC | McCurtain | 61 min |
| Apr 9, 9:06 AM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Comanche, Cotton, Custer and 9 more | 54 min |
| Apr 9, 9:35 AM CDT | Severe Thunderstorm Watch | SPC | Beckham, Caddo, Comanche, Cotton, Custer, Grady and 9 more | 6 hr |
| Apr 9, 12:24 PM CDT | Mesoscale Discussion | SPC | Atoka, Beckham, Blaine, Bryan, Caddo, Canadian and 29 more | 66 min |
| Apr 9, 3:07 PM CDT | Mesoscale Discussion | SPC | Blaine, Caddo, Canadian, Cleveland, Comanche, Cotton and 25 more | 53 min |
| Apr 9, 3:33 PM CDT | Mesoscale Discussion | SPC | Atoka, Bryan, Carter, Choctaw, Coal, Johnston and 5 more | 27 min |
| Apr 9, 5:38 PM CDT | Tornado Watch | SPC | Adair, Cherokee, Delaware, Haskell, Hughes, Latimer and 11 more | 5 hr |
| Apr 9, 6:12 PM CDT | Mesoscale Discussion | SPC | Jackson | 63 min |
| Apr 9, 6:55 PM CDT | Severe Thunderstorm Watch | SPC | Caddo, Canadian, Cleveland, Comanche, Cotton, Garvin and 15 more | 8 hr |
| Apr 8, 7:33 PM CDT | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Franklin, Gregg, Harrison and 6 more | 117 min |
| Apr 8, 8:06 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Burnet, Coryell, Ellis, Falls and 16 more | 114 min |
| Apr 8, 8:48 PM CDT | Tornado Watch | SPC | Bell, Burnet, Coryell, Falls, Gillespie, Kimble and 11 more | 2 hr |
| Apr 9, 6:00 AM CDT | Mesoscale Discussion | SPC | Armstrong, Bailey, Briscoe, Castro, Childress, Cochran and 22 more | 60 min |
| Apr 9, 6:27 AM CDT | Severe Thunderstorm Watch | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 36 more | 8 hr |
| Apr 9, 12:46 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coke, Coleman, Comanche and 41 more | 59 min |
| Apr 9, 1:20 PM CDT | Tornado Watch | SPC | Bosque, Brown, Callahan, Coke, Coleman, Comanche and 40 more | 7 hr |
| Apr 9, 4:01 PM CDT | Mesoscale Discussion | SPC | Cass, Harrison, Marion | 59 min |
| Apr 9, 5:12 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Bell, Borden, Bosque, Brown and 51 more | 63 min |
| Apr 9, 6:59 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Comanche, Concho and 34 more | 61 min |
Nearby
Tornado Watches in Texas, 2008Tornado Watches in Oklahoma, 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.