Alert archive / Texas / Mesoscale Discussions in 2024
Mesoscale Discussion 607
The Storm Prediction Center issued this mesoscale discussion at May 2, 2024, 5:35 PM CDT for 31 counties in Texas. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- May 2, 2024, 5:35 PM CDT (22:35 UTC)
- Expired
- May 2, 2024, 7:00 PM CDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 177
All 31 counties
Bandera County, TX, Baylor County, TX, Brown County, TX, Callahan County, TX, Coleman County, TX, Concho County, TX, Eastland County, TX, Edwards County, TX, Gillespie County, TX, Haskell County, TX, Jones County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Knox County, TX, Mason County, TX, McCulloch County, TX, Medina County, TX, Menard County, TX, Real County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Shackelford County, TX, Stephens County, TX, Sutton County, TX, Taylor County, TX, Throckmorton County, TX, Uvalde County, TX, Young County, TX, Zavala County, TX
The radar
The San Angelo radar (KSJT), 71 km from the middle of the area, began a volume at 22:36 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 (KDRT), launched 12:00Z, 10.6 hours before the alert went out and 192 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
- 2907 J/kg
- Mixed-layer CIN
- -109 J/kg
- Mixed-layer LCL
- 606 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 185 m²/s²
- 0-3 km storm-relative helicity
- 159 m²/s²
- Significant tornado parameter
- 1.7
- Supercell composite
- 5.3
The text
As transmitted.
422
ACUS11 KWNS 022236
SWOMCD
SPC MCD 022235
TXZ000-030000-
Mesoscale Discussion 0607
NWS Storm Prediction Center Norman OK
0535 PM CDT Thu May 02 2024
Areas affected...Northwest TX into Southwest TX into the TX Hill
Country
Concerning...Severe Thunderstorm Watch 177...
Valid 022235Z - 030000Z
The severe weather threat for Severe Thunderstorm Watch 177
continues.
SUMMARY...Supercells capable of very large hail up to 2-3" in
diameter and gusts up to 75 mph remain possible. Additional
development is possible over the Texas Hill Country and trends will
be monitored for additional watch issuance.
DISCUSSION...Regional radar imagery depicts two mature supercells,
one in King County and the other farther south in Runnels County.
Visible satellite imagery reveals several attempts at additional
development between these two mature storms. Environmental
conditions support supercells and the general expectation is for the
newer development to mature. Primary severe risk with these storms
is very large hail around 2" to 3" in diameter. A few damaging gusts
up to 75 mph are possible as well.
Farther south (from southwest TX into the TX Hill Country), cumulus
has been gradually deepening, although convective
initiation/lightning has not been realized. The mesoscale
environment in this area will be influenced by a westward-moving
outflow boundary, which could provide the additional lift needed for
convective initiation. Large to very hail is possible with new
updrafts. However, cooler temperatures behind the outflow could act
as a deterrent for sustained development, and the overall
longevity/severity of this newer development is uncertain. Some
initiation is possible south of Severe Thunderstorm Watch 177, and
convective trends will be monitored closely in this area for
additional watch issuance.
..Mosier/Guyer.. 05/02/2024
...Please see www.spc.noaa.gov for graphic product...
ATTN...WFO...FWD...OUN...EWX...SJT...LUB...
LAT...LON 30330071 31780037 33900003 33529859 29369895 28799982
29350051 30330071SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 1, 7:12 PM CDT | Mesoscale Discussion | SPC | Bastrop, Bell, Bexar, Blanco, Bosque, Brazos and 34 more | 2 hr |
| May 1, 7:46 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Austin, Bastrop, Bell, Blanco, Brazos and 29 more | 8 hr |
| May 1, 7:56 PM CDT | Mesoscale Discussion | SPC | Briscoe, Childress, Collingsworth, Cottle, Crosby, Dickens and 8 more | 94 min |
| May 1, 10:21 PM CDT | Mesoscale Discussion | SPC | Bastrop, Bell, Blanco, Brazos, Burleson, Burnet and 24 more | 114 min |
| May 1, 10:24 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Brown, Callahan, Clay, Coleman and 22 more | 2 hr |
| May 1, 10:42 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Bosque, Brown, Callahan, Clay and 34 more | 5 hr |
| May 2, 12:58 AM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bell, Blanco, Brazos, Burleson and 19 more | 92 min |
| May 2, 5:54 AM CDT | Mesoscale Discussion | SPC | Chambers, Grimes, Hardin, Jasper, Jefferson, Liberty and 7 more | 96 min |
| May 2, 2:07 PM CDT | Mesoscale Discussion | SPC | Baylor, Callahan, Cottle, Fisher, Foard, Haskell and 9 more | 2 hr |
| May 2, 3:05 PM CDT | Severe Thunderstorm Watch | SPC | Archer, Baylor, Brown, Callahan, Coke, Coleman and 27 more | 9 hr |
Nearby
Mesoscale Discussions in Texas, 2024Every mesoscale discussion in 2024
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.