Alert archive / Texas / Mesoscale Discussions in 2020
Mesoscale Discussion 973
The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2020, 6:00 PM CDT for Beckham County, Cimarron County, Texas County, Oklahoma; 22 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jun 22, 2020, 6:00 PM CDT (23:00 UTC)
- Expired
- Jun 22, 2020, 8:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Concerning
- Severe thunderstorm watch 295
All 25 counties
Beckham County, OK, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hall County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Motley County, TX, Ochiltree County, TX, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 61 km from the middle of the area, began a volume at 23:01 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, 11.0 hours before the alert went out and 62 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
- 770 J/kg
- Mixed-layer CIN
- -350 J/kg
- Mixed-layer LCL
- 1143 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 122 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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 |
|---|---|---|---|---|
| Jun 21, 10:13 PM CDT | Mesoscale Discussion | SPC | Beckham, Caddo, Custer, Roger Mills, Washita | 92 min |
| Jun 22, 12:42 AM CDT | Mesoscale Discussion | SPC | Carter, Coal, Cotton, Garvin, Jefferson, Johnston and 6 more | 33 min |
| Jun 22, 3:16 AM CDT | Mesoscale Discussion | SPC | Beckham, Caddo, Comanche, Greer, Harmon, Jackson and 4 more | 89 min |
| Jun 22, 3:13 PM CDT | Mesoscale Discussion | SPC | Cimarron, Roger Mills, Texas | 2 hr |
| Jun 22, 4:00 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Cimarron, Texas | 7 hr |
Nearby
Mesoscale Discussions in Texas, 2020Mesoscale Discussions in Oklahoma, 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.