Alert archive / Texas / Severe Thunderstorm Watches in 2012
Severe Thunderstorm Watch 387
The Storm Prediction Center issued this severe thunderstorm watch at Jun 13, 2012, 2:40 PM MDT for 4 counties in New Mexico; 18 counties in Texas. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 13, 2012, 2:40 PM MDT (20:40 UTC)
- Expired
- Jun 13, 2012, 10:00 PM MDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Largest hail expected
- 2.5 in
- Strongest gust expected
- 60 kt
All 22 counties
Chaves County, NM, Eddy County, NM, Lea County, NM, Lincoln County, NM, Andrews County, TX, Brewster County, TX, Crane County, TX, Culberson County, TX, Dawson County, TX, Ector County, TX, Gaines County, TX, Jeff Davis County, TX, Loving County, TX, Martin County, TX, Midland County, TX, Pecos County, TX, Presidio County, TX, Reeves County, TX, Terrell County, TX, Upton County, TX, Ward County, TX, Winkler County, TX
The radar
The Midland/Odessa radar (KMAF), 174 km from the middle of the area, began a volume at 20:39 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
- 30%
- One or more gusts of 65 knots or more
- 30%
- Ten or more severe hail reports
- 30%
- One or more hailstones of 2 inches or more
- 50%
- Six or more combined severe hail and wind reports
- 70%
Warnings issued inside it
6 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 13, 3:01 PM MDT | Severe Thunderstorm Warning | MAF | Jeff Davis, Reeves | 29 min |
| Jun 13, 6:19 PM MDT | Severe Thunderstorm Warning | MAF | Jeff Davis | 56 min |
| Jun 13, 7:15 PM MDT | Severe Thunderstorm Warning | MAF | Presidio | 43 min |
| Jun 13, 7:17 PM MDT | Severe Thunderstorm Warning | MAF | Brewster, Jeff Davis | 58 min |
| Jun 13, 7:57 PM MDT | Severe Thunderstorm Warning | MAF | Presidio | 31 min |
| Jun 13, 8:14 PM MDT | Severe Thunderstorm Warning | MAF | Brewster | 61 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 12:00Z, 8.7 hours before the alert went out and 173 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
- 1421 J/kg
- Mixed-layer CIN
- -285 J/kg
- Mixed-layer LCL
- 787 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 333 m²/s²
- 0-3 km storm-relative helicity
- 560 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 5.9
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 6:38 PM MDT | Mesoscale Discussion | SPC | Chaves, Curry, De Baca, Eddy, Guadalupe, Lea and 1 more | 67 min |
| Jun 13, 12:51 PM MDT | Mesoscale Discussion | SPC | Colfax, Curry, De Baca, Guadalupe, Harding, Mora and 3 more | 54 min |
| Jun 13, 1:04 PM MDT | Mesoscale Discussion | SPC | Chaves, Eddy, Lea, Lincoln | 56 min |
| Jun 12, 6:21 PM MDT | Mesoscale Discussion | SPC | Austin, Colorado, Fayette, Jackson, Lavaca, Wharton | 54 min |
| Jun 12, 8:11 PM MDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 28 more | 34 min |
| Jun 12, 8:26 PM MDT | Severe Thunderstorm Watch | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 43 more | 7 hr |
| Jun 12, 10:11 PM MDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 38 more | 64 min |
| Jun 13, 4:17 PM MDT | Mesoscale Discussion | SPC | Anderson, Bosque, Cherokee, Dallas, Denton, Ellis and 19 more | 58 min |
Nearby
Severe Thunderstorm Watches in Texas, 2012Severe Thunderstorm Watches in New Mexico, 2012Every severe thunderstorm watch in 2012
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.