Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 186
The Storm Prediction Center issued this mesoscale discussion at Mar 17, 2020, 9:12 AM CDT for 31 counties in Texas. It was in force for 93 min.
The area
The outline as issued.
The facts
- Issued
- Mar 17, 2020, 9:12 AM CDT (14:12 UTC)
- Expired
- Mar 17, 2020, 10:45 AM CDT
- In force
- 93 min
- Issued by
- the Storm Prediction Center
All 31 counties
Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Gray County, TX, Hale County, TX, Hall County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Swisher County, TX
The radar
The Lubbock radar (KLBB), 84 km from the middle of the area, began a volume at 14:13 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 2.2 hours before the alert went out and 92 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
- 201 J/kg
- Mixed-layer CIN
- -17 J/kg
- Mixed-layer LCL
- 554 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 170 m²/s²
- 0-3 km storm-relative helicity
- 246 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
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 |
|---|---|---|---|---|
| Mar 17, 8:44 AM CDT | Severe Thunderstorm Watch | SPC | Cottle, Crosby, Dickens, Floyd, Garza, Hale and 9 more | 4 hr |
| Mar 17, 11:49 AM CDT | Mesoscale Discussion | SPC | Cottle, Crosby, Dickens, Floyd, Foard, Hale and 7 more | 86 min |
| Mar 17, 1:02 PM CDT | Severe Thunderstorm Watch | SPC | Baylor, Cottle, Dickens, Foard, Haskell, Kent and 5 more | 6 hr |
| Mar 17, 2:55 PM CDT | Mesoscale Discussion | SPC | Andrews, Crane, Ector, Terrell, Upton, Winkler | 3 hr |
| Mar 17, 3:01 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Fisher, Haskell, Jones, Kent and 11 more | 119 min |
| Mar 17, 4:41 PM CDT | Severe Thunderstorm Watch | SPC | Borden, Callahan, Coke, Coleman, Concho, Crane and 31 more | 7 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.