Alert archive / Texas / Mesoscale Discussions in 2017
Mesoscale Discussion 679
The Storm Prediction Center issued this mesoscale discussion at May 10, 2017, 1:04 AM MDT for Lea County, Roosevelt County, New Mexico; 27 counties in Texas. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- May 10, 2017, 1:04 AM MDT (07:04 UTC)
- Expired
- May 10, 2017, 2:30 AM MDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 29 counties
Lea County, NM, Roosevelt County, NM, Andrews County, TX, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Castro County, TX, Cochran County, TX, Collingsworth County, TX, Crosby County, TX, Dawson County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Gaines County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Parmer County, TX, Randall County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX
The radar
The Lubbock radar (KLBB), 33 km from the middle of the area, began a volume at 07:06 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
Amarillo Airport, TX (KAMA), launched 00:00Z, 7.1 hours before the alert went out and 162 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
- 591 J/kg
- Mixed-layer CIN
- -96 J/kg
- Mixed-layer LCL
- 1404 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 70 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
024
ACUS11 KWNS 100705
SWOMCD
SPC MCD 100704
OKZ000-TXZ000-NMZ000-100830-
Mesoscale Discussion 0679
NWS Storm Prediction Center Norman OK
0204 AM CDT Wed May 10 2017
Areas affected...Parts of eastern New Mexico into the Texas South
Plains/Panhandle region
Concerning...Severe Thunderstorm Watch 202...
Valid 100704Z - 100830Z
The severe weather threat for Severe Thunderstorm Watch 202
continues.
SUMMARY...Potential for strong/severe storms probably will linger
through at least the 09-11Z time frame. A new watch east of ww 202
is not currently anticipated, but perhaps not entirely out of the
question.
DISCUSSION...Recent radar trends suggest that the number of intense
storms has diminished, as the area of general convective development
gradually spreads out of eastern New Mexico into the the Texas
Panhandle and South Plains vicinity. Stronger activity appears to
be in the process of coming focused within a zone of enhanced
lower/mid tropospheric warm advection, on the northwestern periphery
of warmer and more strongly capping elevated mixed layer air to the
west and northwest of Lubbock and Plainview. Aided by a nocturnally
peaking southerly low-level jet (50+ kt at 850 mb), occasional
severe hail and wind gusts seem likely to remain possible through at
least the 09-11Z time frame, while spreading into/through the
remainder of the Texas Panhandle, adjacent northwest Texas and
perhaps parts of western Oklahoma.
..Kerr.. 05/10/2017
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OUN...LUB...AMA...MAF...ABQ...
LAT...LON 34710326 35170210 35510091 35039986 34000066 33150117
32410228 31910265 32090334 33300377 34710326SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 9, 7:41 PM MDT | Mesoscale Discussion | SPC | Chaves, Curry, De Baca, Eddy, Harding, Lea and 2 more | 2 hr |
| May 9, 9:17 PM MDT | Mesoscale Discussion | SPC | Curry, Lea, Roosevelt | 28 min |
| May 9, 9:59 PM MDT | Severe Thunderstorm Watch | SPC | Chaves, Curry, Eddy, Lea, Roosevelt | 8 hr |
| May 10, 1:04 PM MDT | Mesoscale Discussion | SPC | Colfax, Taos, Union | 2 hr |
| May 10, 5:04 AM MDT | Mesoscale Discussion | SPC | Collingsworth, Hemphill, Lipscomb, Wheeler | 116 min |
| May 10, 1:14 PM MDT | Mesoscale Discussion | SPC | Baylor, Briscoe, Childress, Collingsworth, Cottle, Donley and 10 more | 61 min |
| May 10, 1:25 PM MDT | Mesoscale Discussion | SPC | Menard, Schleicher, Sutton, Val Verde | 3 hr |
| May 10, 1:43 PM MDT | Tornado Watch | SPC | Archer, Baylor, Briscoe, Childress, Cottle, Dickens and 13 more | 7 hr |
| May 10, 2:11 PM MDT | Mesoscale Discussion | SPC | Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 10 more | 94 min |
| May 10, 4:27 PM MDT | Severe Thunderstorm Watch | SPC | Armstrong, Carson, Collingsworth, Donley, Gray, Hansford and 7 more | 3 hr |
| May 10, 4:58 PM MDT | Mesoscale Discussion | SPC | Archer, Baylor, Collingsworth, Donley, Foard, Hardeman and 3 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2017Mesoscale Discussions in New Mexico, 2017Every mesoscale discussion 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.