Alert archive / Texas / Mesoscale Discussions in 2019
Mesoscale Discussion 557
The Storm Prediction Center issued this mesoscale discussion at May 6, 2019, 3:30 PM CDT for Cimarron County, Texas County, Oklahoma; 25 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 6, 2019, 3:30 PM CDT (20:30 UTC)
- Expired
- May 6, 2019, 5:30 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 27 counties
Cimarron County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Gray County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Swisher County, TX
The radar
The Amarillo radar (KAMA), 21 km from the middle of the area, began a volume at 20:31 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
Amarillo Airport, TX (KAMA), launched 12:00Z, 8.5 hours before the alert went out and 22 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
- 270 J/kg
- Mixed-layer CIN
- -385 J/kg
- Mixed-layer LCL
- 1599 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 263 m²/s²
- 0-3 km storm-relative helicity
- 286 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 5, 8:30 PM CDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 8 more | 90 min |
| May 5, 9:19 PM CDT | Mesoscale Discussion | SPC | Canadian, Cleveland, Creek, Grady, Lincoln, Logan and 10 more | 56 min |
| May 5, 9:41 PM CDT | Severe Thunderstorm Watch | SPC | Beckham, Caddo, Canadian, Cleveland, Creek, Grady and 19 more | 6 hr |
| May 6, 10:48 AM CDT | Mesoscale Discussion | SPC | Aransas, Bee, Brooks, Calhoun, Cameron, Goliad and 10 more | 87 min |
Nearby
Mesoscale Discussions in Texas, 2019Mesoscale Discussions in Oklahoma, 2019Every mesoscale discussion in 2019
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.