Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 1149
The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2012, 11:11 PM CDT for 44 counties in Texas. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Jun 12, 2012, 11:11 PM CDT (04:11 UTC)
- Expired
- Jun 13, 2012, 12:15 AM CDT
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 44 counties
Andrews County, TX, Armstrong County, TX, Bailey County, TX, Borden County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Crane County, TX, Crosby County, TX, Dawson County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Ector County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Howard County, TX, Kent County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Swisher County, TX, Terry County, TX, Upton County, TX, Winkler County, TX, Yoakum County, TX
The radar
The Lubbock radar (KLBB), 71 km from the middle of the area, began a volume at 04:14 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 nearest sounding before it
Midland Regional, TX (KMAF), launched 00:00Z, 4.2 hours before the alert went out and 123 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
- 1015 J/kg
- Mixed-layer CIN
- -19 J/kg
- Mixed-layer LCL
- 2690 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- 61 m²/s²
- 0-3 km storm-relative helicity
- 214 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.2
The text
As transmitted, in the capitals the NWS used until 2016.
862 ACUS11 KWNS 130411 SWOMCD SPC MCD 130411 TXZ000-NMZ000-130515- MESOSCALE DISCUSSION 1149 NWS STORM PREDICTION CENTER NORMAN OK 1111 PM CDT TUE JUN 12 2012 AREAS AFFECTED...NWRN/WEST TX CONCERNING...SEVERE THUNDERSTORM WATCH 385... VALID 130411Z - 130515Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 385 CONTINUES. SUMMARY...LARGE HAIL IS THE PRIMARY SEVERE THREAT WITH MULTIPLE THUNDERSTORM CLUSTERS ACROSS THE SRN HIGH PLAINS OF WEST TX. DISCUSSION...SW-NE ORIENTED MCS HAS EVOLVED ACROSS THE TX PANHANDLE LATE THIS EVENING. THIS COMPLEX OF STORMS HAS SLOWLY EXPANDED IN AREAL COVERAGE AND IS PROGRESSING SEWD AT ROUGHLY 20-25KT. GREATEST THREAT WITH THIS ACTIVITY SHOULD BE LARGE HAIL BUT IF FORWARD SPEED INCREASES THEN DAMAGING WINDS MAY BECOME MORE COMMON. JUST AHEAD OF THIS MCS A LONE SEVERE SUPERCELL IS DRIFTING SSEWD ACROSS ROOSEVELT COUNTY NM. THIS STORM HAS TRENDED DOWN OVER THE LAST HOUR AND WHILE HAIL MAY CONTINUE TO BE NOTED...WITH TIME...A SLIGHT TURN TO THE EAST MAY BE NOTED WHICH WILL TAKE THIS ACTIVITY INTO THE WRN PORTIONS OF WW 385. FARTHER SOUTH...OLD OUTFLOW BOUNDARY THAT IS DRAPED ACROSS THE PERMIAN BASIN SHOULD SERVE TO FOCUS A SLOW MOVING MCS AS IT SPREADS ACROSS THE MAF AREA TOWARD SERN PORTIONS OF WW. WITH SELY LLJ DIRECTED INTO THE SRN HALF OF THE WW IT APPEARS STORMS WILL PERSIST ACROSS THIS REGION WELL INTO THE EARLY MORNING HOURS. ..DARROW.. 06/13/2012 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...SJT...LUB...AMA...MAF... LAT...LON 31320308 35630299 35640047 31340070 31320308
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 12, 7:21 PM CDT | Mesoscale Discussion | SPC | Austin, Colorado, Fayette, Jackson, Lavaca, Wharton | 54 min |
| Jun 12, 7:38 PM CDT | Mesoscale Discussion | SPC | Culberson, Jeff Davis, Loving, Reeves, Ward, Winkler | 67 min |
| Jun 12, 9:11 PM CDT | Mesoscale Discussion | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 28 more | 34 min |
| Jun 12, 9:26 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 43 more | 7 hr |
| Jun 13, 1:51 PM CDT | Mesoscale Discussion | SPC | Dallam, Deaf Smith, Hartley, Oldham, Parmer | 54 min |
| Jun 13, 2:04 PM CDT | Mesoscale Discussion | SPC | Brewster, Culberson, Jeff Davis, Loving, Pecos, Presidio and 3 more | 56 min |
| Jun 13, 3:40 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Brewster, Crane, Culberson, Dawson, Ector and 12 more | 7 hr |
| Jun 13, 5:17 PM CDT | Mesoscale Discussion | SPC | Anderson, Bosque, Cherokee, Dallas, Denton, Ellis and 19 more | 58 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.