Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 503
The Storm Prediction Center issued this mesoscale discussion at May 23, 2018, 5:47 PM CDT for 7 counties in Kansas; 7 counties in Oklahoma; 19 counties in Texas. It was in force for 118 min.
The area
The outline as issued.
The facts
- Issued
- May 23, 2018, 5:47 PM CDT (22:47 UTC)
- Expired
- May 23, 2018, 7:45 PM CDT
- In force
- 118 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 33 counties
Clark County, KS, Grant County, KS, Haskell County, KS, Meade County, KS, Morton County, KS, Seward County, KS, Stevens County, KS, Beaver County, OK, Cimarron County, OK, Ellis County, OK, Harper County, OK, Roger Mills County, OK, Texas County, OK, Woodward County, OK, Armstrong County, TX, Carson County, TX, Dallam County, TX, Deaf Smith 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, Oldham County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Sherman County, TX, Wheeler County, TX
The radar
The Amarillo radar (KAMA), 134 km from the middle of the area, began a volume at 22:49 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, 10.8 hours before the alert went out and 134 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
- 244 J/kg
- Mixed-layer CIN
- -114 J/kg
- Mixed-layer LCL
- 990 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -64 m²/s²
- 0-3 km storm-relative helicity
- -12 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 23, 1:23 PM CDT | Mesoscale Discussion | SPC | Andrews, Bailey, Castro, Cochran, Culberson, Dallam and 13 more | 67 min |
| May 23, 3:14 PM CDT | Severe Thunderstorm Watch | SPC | Brewster, Culberson, Jeff Davis, Loving, Pecos, Presidio and 3 more | 7 hr |
| May 23, 6:15 PM CDT | Mesoscale Discussion | SPC | Andrews, Bailey, Brewster, Cochran, Crane, Culberson and 10 more | 90 min |
Nearby
Mesoscale Discussions in Texas, 2018Mesoscale Discussions in Kansas, 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.