Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 734
The Storm Prediction Center issued this mesoscale discussion at May 25, 2020, 11:39 PM CDT for 28 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 25, 2020, 11:39 PM CDT (04:39 UTC)
- Expired
- May 26, 2020, 1:45 AM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 227
All 28 counties
Atascosa County, TX, Bandera County, TX, Bee County, TX, Bexar County, TX, Brooks County, TX, Dimmit County, TX, Duval County, TX, Edwards County, TX, Frio County, TX, Hidalgo County, TX, Jim Hogg County, TX, Jim Wells County, TX, Karnes County, TX, Kerr County, TX, Kinney County, TX, La Salle County, TX, Live Oak County, TX, Maverick County, TX, McMullen County, TX, Medina County, TX, Real County, TX, Starr County, TX, Uvalde County, TX, Val Verde County, TX, Webb County, TX, Wilson County, TX, Zapata County, TX, Zavala County, TX
The radar
The Corpus Christi radar (KCRP), 135 km from the middle of the area, began a volume at 04:42 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
Corpus Christi, TX (KCRP), launched 00:00Z, 4.7 hours before the alert went out and 153 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
- 553 J/kg
- Mixed-layer CIN
- -299 J/kg
- Mixed-layer LCL
- 1339 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 163 m²/s²
- 0-3 km storm-relative helicity
- 250 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.0
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 7:25 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bee, Bexar, Comal, DeWitt and 29 more | 65 min |
| May 25, 7:49 PM CDT | Severe Thunderstorm Watch | SPC | Atascosa, Bandera, Bee, Bexar, Brooks, DeWitt and 25 more | 8 hr |
| May 26, 4:49 PM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bexar, Burleson, Caldwell, Colorado and 16 more | 86 min |
Nearby
Mesoscale Discussions in Texas, 2020Every mesoscale discussion in 2020
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.