Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 737
The Storm Prediction Center issued this mesoscale discussion at May 26, 2020, 4:49 PM CDT for 22 counties in Texas. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- May 26, 2020, 4:49 PM CDT (21:49 UTC)
- Expired
- May 26, 2020, 6:15 PM CDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
- Concerning
- Severe potential...watch unlikely
- Chance of a watch
- 5%
All 22 counties
Austin County, TX, Bastrop County, TX, Bexar County, TX, Burleson County, TX, Caldwell County, TX, Colorado County, TX, DeWitt County, TX, Fayette County, TX, Fort Bend County, TX, Gonzales County, TX, Grimes County, TX, Guadalupe County, TX, Harris County, TX, Karnes County, TX, Lavaca County, TX, Lee County, TX, Montgomery County, TX, San Jacinto County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 118 km from the middle of the area, began a volume at 21:53 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
Corpus Christi, TX (KCRP), launched 12:00Z, 9.8 hours before the alert went out and 233 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
- 114 J/kg
- Mixed-layer CIN
- -163 J/kg
- Mixed-layer LCL
- 1239 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 173 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -1.2
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 25, 11:39 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bee, Bexar, Brooks, Dimmit and 22 more | 2 hr |
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.