Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 467
The Storm Prediction Center issued this mesoscale discussion at May 19, 2018, 5:50 PM MDT for Curry County, Quay County, New Mexico; Cimarron County, Texas County, Oklahoma; 23 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 19, 2018, 5:50 PM MDT (23:50 UTC)
- Expired
- May 19, 2018, 8:15 PM MDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 27 counties
Curry County, NM, Quay County, NM, Cimarron County, OK, Texas County, OK, Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Dallam County, TX, Deaf Smith County, TX, Donley County, TX, Floyd County, TX, Gray County, TX, Hale County, TX, Hansford County, TX, Hartley County, TX, Hutchinson County, TX, Lamb County, TX, Moore 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), 58 km from the middle of the area, began a volume at 23:53 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 nearest sounding before it
Amarillo Airport, TX (KAMA), launched 12:00Z, 11.8 hours before the alert went out and 59 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
- 15 J/kg
- Mixed-layer CIN
- -656 J/kg
- Mixed-layer LCL
- 2059 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- -124 m²/s²
- 0-3 km storm-relative helicity
- -106 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 18, 8:40 PM MDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Custer, Dewey, Ellis and 11 more | 65 min |
| May 19, 6:50 AM MDT | Mesoscale Discussion | SPC | Craig, Nowata, Osage, Ottawa, Washington | 115 min |
| May 19, 11:39 AM MDT | Mesoscale Discussion | SPC | Alfalfa, Garfield, Grant, Kay, Nowata, Osage and 1 more | 3 hr |
| May 19, 12:05 PM MDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Canadian, Comanche, Custer and 6 more | 2 hr |
| May 19, 1:30 PM MDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 26 more | 11 hr |
| May 19, 5:11 PM MDT | Mesoscale Discussion | SPC | Alfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 25 more | 2 hr |
Nearby
Mesoscale Discussions in Texas, 2018Mesoscale Discussions in New Mexico, 2018Mesoscale Discussions in Oklahoma, 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.