Alert archive / Texas / Severe Thunderstorm Watches in 2015
Severe Thunderstorm Watch 38
The Storm Prediction Center issued this severe thunderstorm watch at Apr 8, 2015, 7:23 PM CDT for 33 counties in Texas. It was in force for 3 hr.
The area
The outline as issued.
The facts
- Issued
- Apr 8, 2015, 7:23 PM CDT (00:23 UTC)
- Expired
- Apr 8, 2015, 10:30 PM CDT
- In force
- 3 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 1.5 in
- Strongest gust expected
- 60 kt
All 33 counties
Borden County, TX, Childress County, TX, Coke County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Hall County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Tom Green County, TX, Upton County, TX
The radar
The Lubbock radar (KLBB), 105 km from the middle of the area, began a volume at 00:25 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
- 40%
- One or more gusts of 65 knots or more
- 20%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 10%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
8 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 7:30 PM CDT | Severe Thunderstorm Warning | MAF | Borden, Dawson, Howard, Martin | 45 min |
| Apr 8, 7:31 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Lubbock | 29 min |
| Apr 8, 7:34 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Lynn | 41 min |
| Apr 8, 7:58 PM CDT | Severe Thunderstorm Warning | LUB | Crosby, Dickens, Floyd, Motley | 47 min |
| Apr 8, 8:14 PM CDT | Severe Thunderstorm Warning | LUB | Garza, Kent | 46 min |
| Apr 8, 8:45 PM CDT | Severe Thunderstorm Warning | LUB | Dickens, Kent, King, Stonewall | 30 min |
| Apr 8, 9:04 PM CDT | Severe Thunderstorm Warning | OUN | Baylor, Foard, Hardeman, Knox, Wilbarger | 56 min |
| Apr 8, 9:15 PM CDT | Severe Thunderstorm Warning | LUB | Cottle, King, Stonewall | 15 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
Midland Regional, TX (KMAF), launched 00:00Z, 0.4 hours before the alert went out and 178 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
- 1075 J/kg
- Mixed-layer CIN
- -122 J/kg
- Mixed-layer LCL
- 2257 m above ground
- 0-6 km bulk shear
- 57 kt
- 0-1 km storm-relative helicity
- 177 m²/s²
- 0-3 km storm-relative helicity
- 136 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.7
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 8, 9:34 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Haskell, Throckmorton, Wichita, Wilbarger and 1 more | 56 min |
| Apr 9, 2:15 PM CDT | Mesoscale Discussion | SPC | Bowie, Camp, Cass, Franklin, Gregg, Harrison and 5 more | 2 hr |
| Apr 9, 3:06 PM CDT | Tornado Watch | SPC | Bowie, Camp, Cass, Cherokee, Franklin, Gregg and 11 more | 7 hr |
| Apr 9, 3:17 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bell, Delta, Ellis, Falls, Fannin and 16 more | 7 hr |
| Apr 9, 4:53 PM CDT | Mesoscale Discussion | SPC | Bosque, Collin, Comanche, Dallas, Denton, Erath and 8 more | 2 hr |
Nearby
Severe Thunderstorm Watches in Texas, 2015Every severe thunderstorm watch in 2015
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.