Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 825
The Storm Prediction Center issued this mesoscale discussion at Jun 22, 2018, 1:52 PM MDT for Union County, New Mexico; Beaver County, Cimarron County, Texas County, Oklahoma; 16 counties in Texas. It was in force for 83 min.
The area
The outline as issued.
The facts
- Issued
- Jun 22, 2018, 1:52 PM MDT (19:52 UTC)
- Expired
- Jun 22, 2018, 3:15 PM MDT
- In force
- 83 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 80%
Counties Union County, NM, Beaver County, OK, Cimarron County, OK, Texas County, OK, Carson County, TX, Collingsworth County, TX, Dallam County, TX, Donley County, TX, Gray County, TX, Hansford County, TX, Hartley County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Moore County, TX, Ochiltree County, TX, Potter County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 98 km from the middle of the area, began a volume at 19:53 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 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, 7.9 hours before the alert went out and 98 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
- 762 J/kg
- Mixed-layer CIN
- -198 J/kg
- Mixed-layer LCL
- 1293 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 312 m²/s²
- 0-3 km storm-relative helicity
- 409 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
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 22, 2:29 PM MDT | Severe Thunderstorm Watch | SPC | Union | 9 hr |
| Jun 22, 1:06 AM MDT | Mesoscale Discussion | SPC | Beaver, Beckham, Cimarron, Ellis, Roger Mills, Texas | 84 min |
| Jun 22, 4:14 PM MDT | Mesoscale Discussion | SPC | Alfalfa, Beaver, Blaine, Cimarron, Custer, Dewey and 9 more | 2 hr |
| Jun 22, 5:22 PM MDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Custer and 15 more | 7 hr |
Nearby
Mesoscale Discussions in Texas, 2018Mesoscale Discussions in Oklahoma, 2018Mesoscale Discussions in New Mexico, 2018Every mesoscale discussion in 2018
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.