Alert archive / Texas / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 93
The Storm Prediction Center issued this severe thunderstorm watch at Mar 28, 2017, 12:51 PM CDT for 40 counties in Texas. It was in force for 8 hr.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2017, 12:51 PM CDT (17:51 UTC)
- Expired
- Mar 28, 2017, 9:00 PM CDT
- In force
- 8 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 40 counties
Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hockley County, TX, Hutchinson County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lipscomb County, TX, Lubbock County, TX, Lynn County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 18 km from the middle of the area, began a volume at 17:54 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
- 20%
- One or more EF2 to EF5 tornadoes
- 5%
- Ten or more severe wind reports
- 10%
- One or more gusts of 65 knots or more
- 10%
- Ten or more severe hail reports
- 60%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
34 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 1:08 PM CDT | Severe Thunderstorm Warning | LUB | Hale, Lubbock | 37 min |
| Mar 28, 1:22 PM CDT | Severe Thunderstorm Warning | LUB | Crosby | 23 min |
| Mar 28, 1:40 PM CDT | Severe Thunderstorm Warning | LUB | Floyd, Hale, Lubbock | 35 min |
| Mar 28, 1:43 PM CDT | Severe Thunderstorm Warning | LUB | Crosby | 32 min |
| Mar 28, 2:18 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Dickens, Garza | 27 min |
| Mar 28, 2:34 PM CDT | Tornado Warning | LUB | Crosby | 26 min |
| Mar 28, 2:42 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Kent | 33 min |
| Mar 28, 2:43 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Dickens, Garza, Kent | 32 min |
| Mar 28, 3:15 PM CDT | Severe Thunderstorm Warning | LUB | Kent | 30 min |
| Mar 28, 3:18 PM CDT | Tornado Warning | LUB | Dickens | 27 min |
| Mar 28, 3:38 PM CDT | Severe Thunderstorm Warning | AMA | Donley, Gray | 52 min |
| Mar 28, 3:38 PM CDT | Tornado Warning | LUB | Motley | 37 min |
| Mar 28, 4:01 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Floyd, Hale, Lubbock | 29 min |
| Mar 28, 4:10 PM CDT | Tornado Warning | LUB | Hall, Motley | 35 min |
| Mar 28, 4:24 PM CDT | Tornado Warning | LUB | Dickens, Kent, King, Stonewall | 36 min |
| Mar 28, 4:24 PM CDT | Tornado Warning | LUB | Crosby, Floyd | 36 min |
| Mar 28, 4:34 PM CDT | Tornado Warning | LUB | Cottle, Dickens, Motley | 26 min |
| Mar 28, 4:39 PM CDT | Tornado Warning | LUB | Hall | 36 min |
| Mar 28, 4:41 PM CDT | Severe Thunderstorm Warning | LUB | King, Stonewall | 34 min |
| Mar 28, 4:52 PM CDT | Tornado Warning | LUB | Cottle, Dickens, King | 23 min |
| Mar 28, 4:56 PM CDT | Severe Thunderstorm Warning | LUB | Floyd, Motley | 34 min |
| Mar 28, 5:08 PM CDT | Tornado Warning | LUB | Cottle, King | 37 min |
| Mar 28, 5:10 PM CDT | Severe Thunderstorm Warning | AMA | Collingsworth, Donley | 50 min |
| Mar 28, 5:12 PM CDT | Severe Thunderstorm Warning | LUB | King, Stonewall | 33 min |
| Mar 28, 5:14 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, King | 31 min |
| Mar 28, 5:15 PM CDT | Tornado Warning | LUB | Hall | 30 min |
| Mar 28, 5:22 PM CDT | Severe Thunderstorm Warning | LUB | Motley | 23 min |
| Mar 28, 5:28 PM CDT | Tornado Warning | AMA | Collingsworth | 32 min |
| Mar 28, 5:45 PM CDT | Severe Thunderstorm Warning | LUB | King, Stonewall | 30 min |
| Mar 28, 5:45 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, Hall, Motley | 30 min |
| Mar 28, 5:53 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Floyd, Hale, Lubbock | 37 min |
| Mar 28, 5:58 PM CDT | Tornado Warning | AMA | Collingsworth, Wheeler | 32 min |
| Mar 28, 6:26 PM CDT | Severe Thunderstorm Warning | AMA | Collingsworth, Wheeler | 34 min |
| Mar 28, 8:27 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Kent | 19 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 5.9 hours before the alert went out and 18 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
- 24 J/kg
- Mixed-layer CIN
- -240 J/kg
- Mixed-layer LCL
- 724 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 369 m²/s²
- 0-3 km storm-relative helicity
- 374 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.5
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 28, 9:30 AM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Deaf Smith, Donley and 16 more | 3 hr |
| Mar 28, 12:23 PM CDT | Mesoscale Discussion | SPC | Bailey, Borden, Briscoe, Castro, Cochran, Cottle and 23 more | 67 min |
| Mar 28, 1:25 PM CDT | Mesoscale Discussion | SPC | Coke, Crane, Crockett, Ector, Glasscock, Howard and 8 more | 95 min |
| Mar 28, 1:51 PM CDT | Severe Thunderstorm Watch | SPC | Borden, Callahan, Coke, Coleman, Concho, Crockett and 24 more | 8 hr |
| Mar 28, 2:44 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Callahan, Clay, Eastland, Fisher and 19 more | 3 hr |
| Mar 28, 2:44 PM CDT | Mesoscale Discussion | SPC | Armstrong, Baylor, Briscoe, Carson, Childress, Collingsworth and 21 more | 2 hr |
| Mar 28, 3:40 PM CDT | Tornado Watch | SPC | Archer, Baylor, Brown, Callahan, Childress, Clay and 33 more | 7 hr |
| Mar 28, 5:31 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Jack, Montague, Palo Pinto and 7 more | 89 min |
| Mar 28, 6:04 PM CDT | Mesoscale Discussion | SPC | Bandera, Burnet, Edwards, Gillespie, Kerr, Kimble and 7 more | 116 min |
| Mar 28, 6:30 PM CDT | Mesoscale Discussion | SPC | Coke, Crockett, Glasscock, Howard, Irion, Mitchell and 4 more | 90 min |
Nearby
Severe Thunderstorm Watches in Texas, 2017Every severe thunderstorm watch in 2017
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.