Alert archive / Texas / Severe Thunderstorm Watches in 2014
Severe Thunderstorm Watch 29
The Storm Prediction Center issued this severe thunderstorm watch at Mar 15, 2014, 2:17 PM CDT for 12 counties in Oklahoma; 39 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 15, 2014, 2:17 PM CDT (19:17 UTC)
- Expired
- Mar 15, 2014, 9:31 PM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2 in
- Strongest gust expected
- 60 kt
All 51 counties
Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Jefferson County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, Murray County, OK, Pontotoc County, OK, Pushmataha County, OK, Archer County, TX, Bosque County, TX, Brown County, TX, Callahan County, TX, Clay County, TX, Coleman County, TX, Collin County, TX, Comanche County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Grayson County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, McLennan County, TX, Mills County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Rockwall County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Wise County, TX, Young County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 76 km from the middle of the area, began a volume at 19:18 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
- 10%
- One or more EF2 to EF5 tornadoes
- 2%
- Ten or more severe wind reports
- 20%
- One or more gusts of 65 knots or more
- 5%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 90%
Warnings issued inside it
13 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 3:43 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Jones, Taylor | 32 min |
| Mar 15, 4:12 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Jones, Shackelford, Taylor | 33 min |
| Mar 15, 4:14 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman, Runnels, Taylor | 46 min |
| Mar 15, 4:42 PM CDT | Severe Thunderstorm Warning | SJT | Callahan, Coleman | 48 min |
| Mar 15, 5:02 PM CDT | Severe Thunderstorm Warning | SJT | Callahan | 28 min |
| Mar 15, 5:23 PM CDT | Severe Thunderstorm Warning | SJT | Brown, Coleman | 52 min |
| Mar 15, 5:56 PM CDT | Severe Thunderstorm Warning | SJT | Brown | 49 min |
| Mar 15, 5:58 PM CDT | Severe Thunderstorm Warning | FWD | Comanche | 62 min |
| Mar 15, 6:05 PM CDT | Severe Thunderstorm Warning | FWD | Erath, Hood, Somervell | 55 min |
| Mar 15, 6:40 PM CDT | Severe Thunderstorm Warning | FWD | Collin | 65 min |
| Mar 15, 7:14 PM CDT | Severe Thunderstorm Warning | FWD | Fannin, Hunt | 61 min |
| Mar 15, 7:34 PM CDT | Severe Thunderstorm Warning | FWD | Hamilton | 41 min |
| Mar 15, 7:53 PM CDT | Severe Thunderstorm Warning | FWD | Delta, Fannin, Lamar | 52 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, 7.3 hours before the alert went out and 71 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
- 223 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 569 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- -24 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 15, 1:13 PM CDT | Mesoscale Discussion | SPC | Bryan, Carter, Jefferson, Johnston, Love, Marshall | 2 hr |
| Mar 15, 3:40 PM CDT | Mesoscale Discussion | SPC | Anderson, Camp, Cherokee, Falls, Freestone, Gregg and 16 more | 3 hr |
| Mar 15, 5:28 PM CDT | Mesoscale Discussion | SPC | Bell, Bosque, Brown, Burnet, Comanche, Coryell and 22 more | 92 min |
Nearby
Severe Thunderstorm Watches in Texas, 2014Severe Thunderstorm Watches in Oklahoma, 2014Every severe thunderstorm watch in 2014
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.