Alert archive / Texas / Mesoscale Discussions in 2021
Mesoscale Discussion 1116
The Storm Prediction Center issued this mesoscale discussion at Jun 26, 2021, 7:54 PM CDT for 7 counties in Texas. It was in force for 96 min.
The area
The outline as issued.
The facts
- Issued
- Jun 26, 2021, 7:54 PM CDT (00:54 UTC)
- Expired
- Jun 26, 2021, 9:30 PM CDT
- In force
- 96 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 324
Counties Bailey County, TX, Castro County, TX, Cochran County, TX, Deaf Smith County, TX, Hockley County, TX, Lamb County, TX, Parmer County, TX
The radar
The Lubbock radar (KLBB), 91 km from the middle of the area, began a volume at 00:55 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, 0.9 hours before the alert went out and 177 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
- 667 J/kg
- Mixed-layer CIN
- -20 J/kg
- Mixed-layer LCL
- 1505 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -1.2
The text
As transmitted.
593 ACUS11 KWNS 270054 SWOMCD SPC MCD 270054 TXZ000-NMZ000-270230- Mesoscale Discussion 1116 NWS Storm Prediction Center Norman OK 0754 PM CDT Sat Jun 26 2021 Areas affected...Southern High Plains Concerning...Severe Thunderstorm Watch 324... Valid 270054Z - 270230Z The severe weather threat for Severe Thunderstorm Watch 324 continues. SUMMARY...Hail and wind threat continues across the eastern half of ww324. DISCUSSION...Convection that developed off the higher terrain has progressed downstream and is now maturing into an MCS near the TX/NM border. Even so, a few supercells are noted ahead of the squall line while a few bow-type structures are developing along the southern flank of the MCS. Hail continues to be a risk with the strongest cores, but a threat for wind may be increasing if these bows continue to evolve. Earlier, 70 mph wind gust was noted along this squall line and this type of wind may be noted as the complex propagates east-southeast. ..Darrow.. 06/27/2021 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...LUB...AMA...MAF...ABQ... LAT...LON 33430348 34960263 34360179 33300237 33430348
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 26, 10:13 PM CDT | Mesoscale Discussion | SPC | Baylor, Borden, Childress, Cottle, Crosby, Dawson and 18 more | 92 min |
| Jun 27, 1:18 PM CDT | Mesoscale Discussion | SPC | El Paso, Hudspeth | 117 min |
Nearby
Mesoscale Discussions in Texas, 2021Every mesoscale discussion in 2021
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.