Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 1180
The Storm Prediction Center issued this mesoscale discussion at Jun 15, 2012, 8:37 PM CDT for 16 counties in Texas. It was in force for 23 min.
The area
The outline as issued.
The facts
- Issued
- Jun 15, 2012, 8:37 PM CDT (01:37 UTC)
- Expired
- Jun 15, 2012, 9:00 PM CDT
- In force
- 23 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 95%
Counties Briscoe County, TX, Castro County, TX, Crosby County, TX, Dickens County, TX, Floyd County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Kent County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Swisher County, TX, Terry County, TX
The radar
The Lubbock radar (KLBB), 21 km from the middle of the area, began a volume at 01:40 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.
The watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 1.6 hours before the alert went out and 155 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
- 1006 J/kg
- Mixed-layer CIN
- -184 J/kg
- Mixed-layer LCL
- 2140 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 50 m²/s²
- 0-3 km storm-relative helicity
- 120 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted, in the capitals the NWS used until 2016.
578
ACUS11 KWNS 160138
SWOMCD
SPC MCD 160137
TXZ000-160200-
MESOSCALE DISCUSSION 1180
NWS STORM PREDICTION CENTER NORMAN OK
0837 PM CDT FRI JUN 15 2012
AREAS AFFECTED...W-CNTRL TX
CONCERNING...SEVERE POTENTIAL...WATCH NEEDED SOON
VALID 160137Z - 160200Z
PROBABILITY OF WATCH ISSUANCE...95 PERCENT
SUMMARY...BOWING THUNDERSTORM COMPLEX IS EXPECTED TO CONTINUE MOVING
ACROSS W-CNTRL TX DURING PART OF THE NIGHT. BASED ON RECENT
CONVECTIVE TRENDS AND MEASURED WIND GUSTS...A WW WILL BE ISSUED FOR
THIS ACTIVITY SOON.
DISCUSSION......
..GARNER/CARBIN.. 06/16/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...LUB...
LAT...LON 33590257 34290259 34650231 34610028 33090034 33040229
33590257SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 15, 8:39 PM CDT | Severe Thunderstorm Watch | SPC | Briscoe, Castro, Childress, Cottle, Crosby, Dickens and 14 more | 5 hr |
| Jun 15, 11:44 PM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Childress, Collingsworth, Cottle, Crosby and 13 more | 91 min |
| Jun 16, 1:45 AM CDT | Mesoscale Discussion | SPC | Bailey, Briscoe, Castro, Childress, Cochran, Cottle and 20 more | 60 min |
| Jun 16, 3:02 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Clay, Dickens, Foard, Haskell and 10 more | 88 min |
| Jun 16, 6:24 PM CDT | Mesoscale Discussion | SPC | Dallam, Hansford, Hartley, Hemphill, Hutchinson, Lipscomb and 4 more | 96 min |
Nearby
Mesoscale Discussions in Texas, 2012Every mesoscale discussion 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.