Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 286
The Storm Prediction Center issued this mesoscale discussion at Apr 3, 2020, 8:59 PM CDT for 11 counties in Texas. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Apr 3, 2020, 8:59 PM CDT (01:59 UTC)
- Expired
- Apr 3, 2020, 10:30 PM CDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
Counties Brooks County, TX, Dimmit County, TX, Duval County, TX, Jim Hogg County, TX, Jim Wells County, TX, Kleberg County, TX, La Salle County, TX, McMullen County, TX, Nueces County, TX, San Patricio County, TX, Webb County, TX
The radar
The Corpus Christi radar (KCRP), 138 km from the middle of the area, began a volume at 01:59 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, 2.0 hours before the alert went out and 154 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
- 1259 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 773 m above ground
- 0-6 km bulk shear
- 71 kt
- 0-1 km storm-relative helicity
- -7 m²/s²
- 0-3 km storm-relative helicity
- -42 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.6
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 |
|---|---|---|---|---|
| Apr 4, 6:18 AM CDT | Mesoscale Discussion | SPC | Cameron, Hidalgo, Starr, Willacy | 117 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.