Alert archive / Texas / Mesoscale Discussions in 2016
Mesoscale Discussion 736
The Storm Prediction Center issued this mesoscale discussion at May 26, 2016, 12:54 AM CDT for 14 counties in Texas. It was in force for 36 min.
The area
The outline as issued.
The facts
- Issued
- May 26, 2016, 12:54 AM CDT (05:54 UTC)
- Expired
- May 26, 2016, 1:30 AM CDT
- In force
- 36 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
Counties Coleman County, TX, Concho County, TX, Crockett County, TX, Edwards County, TX, Irion County, TX, Kimble County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Real County, TX, Schleicher County, TX, Sutton County, TX, Tom Green County, TX, Val Verde County, TX
The radar
The San Angelo radar (KSJT), 90 km from the middle of the area, began a volume at 05:53 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
Del Rio, TX (KDLF), launched 00:00Z, 5.9 hours before the alert went out and 135 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
- 3634 J/kg
- Mixed-layer CIN
- -141 J/kg
- Mixed-layer LCL
- 1075 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 43 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 6.6
The text
As transmitted.
215
ACUS11 KWNS 260555
SWOMCD
SPC MCD 260554
TXZ000-260630-
MESOSCALE DISCUSSION 0736
NWS STORM PREDICTION CENTER NORMAN OK
1254 AM CDT THU MAY 26 2016
AREAS AFFECTED...EDWARDS PLATEAU
CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE
VALID 260554Z - 260630Z
PROBABILITY OF WATCH ISSUANCE...40 PERCENT
SUMMARY...A CLUSTER OF SEVERE THUNDERSTORMS OVER THE LOWER PECOS
VALLEY WILL PROBABLY MOVE SLOWLY EWD ACROSS PORTIONS OF THE EDWARDS
PLATEAU TONIGHT. CONSIDERABLE UNCERTAINTY REMAINS REGARDING
COVERAGE/MAGNITUDE OF THE SEVERE THREAT. A SEVERE THUNDERSTORM
WATCH IS BEING CONSIDERED.
DISCUSSION...RADAR MOSAIC SHOWS A COUPLE OF INTENSE THUNDERSTORMS
CAPABLE OF LARGE HAIL OVER PECOS AND REAGAN COUNTIES. A VERY MOIST
BOUNDARY LAYER AND STEEP MID-LEVEL LAPSE RATES YIELDS VERY LARGE TO
EXTREME BUOYANCY AMIDST DEEP-LAYER SHEAR SUPPORTIVE OF ORGANIZED
SEVERE THUNDERSTORMS. A LOWER-LATITUDE H7 TROUGH IS MOVING ACROSS
NRN MEXICO AND THE RIO GRANDE VALLEY TONIGHT AND MAY LEAD TO
ADDITIONAL STORM DEVELOPMENT FARTHER S AND E ACROSS THE EDWARDS
PLATEAU. A RECENT ITERATION OF THE ESRL HRRR SHOWS THIS ACTIVITY
POSSIBLY GROWING UPSCALE OR EXPANDING IN AREAL COVERAGE. GIVEN THE
POSSIBILITY FOR ADDITIONAL STORMS...A SEVERE THUNDERSTORM WATCH MAY
NEED TO BE CONSIDERED.
..SMITH/THOMPSON.. 05/26/2016
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...EWX...SJT...MAF...
LAT...LON 29700158 30730218 31430136 31959922 30719884 29779963
29700158SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 8:07 PM CDT | Mesoscale Discussion | SPC | Brewster, Crockett, Edwards, Irion, Kinney, Pecos and 5 more | 83 min |
| May 26, 7:35 AM CDT | Mesoscale Discussion | SPC | Bosque, Coryell, Hamilton, Hill, Limestone, McLennan and 1 more | 115 min |
| May 26, 1:13 PM CDT | Mesoscale Discussion | SPC | Childress, Collingsworth, Hemphill, Lipscomb, Ochiltree, Wheeler | 2 hr |
| May 26, 1:31 PM CDT | Tornado Watch | SPC | Archer, Baylor, Foard, Hardeman, Knox, Wichita and 1 more | 10 hr |
| May 26, 1:50 PM CDT | Mesoscale Discussion | SPC | Angelina, Austin, Bastrop, Bexar, Brazos, Burleson and 29 more | 115 min |
| May 26, 2:43 PM CDT | Mesoscale Discussion | SPC | Callahan, Coke, Coleman, Concho, Crockett, Edwards and 22 more | 2 hr |
| May 26, 3:12 PM CDT | Severe Thunderstorm Watch | SPC | Brown, Callahan, Coke, Coleman, Concho, Crockett and 21 more | 8 hr |
| May 26, 3:45 PM CDT | Mesoscale Discussion | SPC | Childress, Collingsworth, Cottle, Donley, Gray, Hall and 6 more | 60 min |
| May 26, 6:25 PM CDT | Mesoscale Discussion | SPC | Austin, Colorado, Fayette, Fort Bend, Harris, Montgomery and 2 more | 95 min |
| May 26, 6:53 PM CDT | Mesoscale Discussion | SPC | Brown, Callahan, Coke, Coleman, Concho, Crockett and 21 more | 67 min |
Nearby
Mesoscale Discussions in Texas, 2016Every mesoscale discussion in 2016
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.