Alert archive / Texas / Mesoscale Discussions in 2021
Mesoscale Discussion 1079
The Storm Prediction Center issued this mesoscale discussion at Jun 24, 2021, 3:14 PM CDT for 4 counties in Kansas; Beaver County, Oklahoma; 8 counties in Texas. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Jun 24, 2021, 3:14 PM CDT (20:14 UTC)
- Expired
- Jun 24, 2021, 4:45 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 20%
Counties Gray County, KS, Haskell County, KS, Meade County, KS, Seward County, KS, Beaver County, OK, Carson County, TX, Hansford County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 117 km from the middle of the area, began a volume at 20:14 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.2 hours before the alert went out and 117 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
- 662 J/kg
- Mixed-layer CIN
- -380 J/kg
- Mixed-layer LCL
- 2406 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- 53 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
035
ACUS11 KWNS 242014
SWOMCD
SPC MCD 242014
OKZ000-KSZ000-TXZ000-242145-
Mesoscale Discussion 1079
NWS Storm Prediction Center Norman OK
0314 PM CDT Thu Jun 24 2021
Areas affected...Portions of the TX/OK Panhandles into southwest
Kansas
Concerning...Severe potential...Watch unlikely
Valid 242014Z - 242145Z
Probability of Watch Issuance...20 percent
SUMMARY...Isolated to scattered strong to severe storms possible
through the remainder of the afternoon and into the evening.
DISCUSSION...A dryline extends from southwest Kansas, across the
Oklahoma Panhandle, and into the Texas Panhandle. Showers and weak
thunderstorms have developed along the dryline near Amarillo in the
past 30 minutes, likely aided by weak ascent ahead of an approaching
mid-level shortwave trough.
There is considerable uncertainty regarding storm coverage/intensity
in this region. Convergence is mostly weak along the dryline and SPC
mesoanalysis suggests the environment is still mostly capped in the
region. Therefore, it is unclear whether strong/sustained convection
will be possible. However, if strong updrafts form, there will be a
threat of damaging winds given the very steep lapse rates and
well-mixed airmass. A watch may be needed if more widespread storm
development occurs or appears imminent.
..Bentley/Hart.. 06/24/2021
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...OUN...DDC...AMA...
LAT...LON 35140235 35440223 35910186 37060113 37680082 37930018
37579990 37039979 36250009 35420079 34900146 35000214
35140235SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 24, 1:36 AM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Doniphan, Nemaha | 114 min |
| Jun 24, 2:20 AM CDT | Severe Thunderstorm Watch | SPC | Atchison, Brown, Doniphan, Nemaha | 6 hr |
| Jun 24, 2:45 PM CDT | Mesoscale Discussion | SPC | Atchison, Brown, Douglas, Jackson, Jefferson, Leavenworth and 7 more | 3 hr |
| Jun 24, 2:49 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Logan, Rawlins, Sherman, Thomas, Wallace | 116 min |
| Jun 24, 3:44 PM CDT | Tornado Watch | SPC | Atchison, Brown, Clay, Cloud, Doniphan, Jackson and 8 more | 5 hr |
| Jun 24, 4:56 PM CDT | Severe Thunderstorm Watch | SPC | Cheyenne, Decatur, Finney, Gove, Grant, Gray and 13 more | 6 hr |
| Jun 24, 5:30 PM CDT | Mesoscale Discussion | SPC | Brown, Clay, Cloud, Doniphan, Marshall, Nemaha and 5 more | 60 min |
| Jun 24, 6:19 PM CDT | Mesoscale Discussion | SPC | Doniphan, Wyandotte | 56 min |
| Jun 24, 6:31 PM CDT | Mesoscale Discussion | SPC | Cheyenne, Greeley, Hamilton, Kearny, Lane, Logan and 6 more | 119 min |
Nearby
Mesoscale Discussions in Texas, 2021Mesoscale Discussions in Kansas, 2021Mesoscale Discussions in Oklahoma, 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.