Alert archive / Texas / Mesoscale Discussions in 2018
Mesoscale Discussion 434
The Storm Prediction Center issued this mesoscale discussion at May 15, 2018, 7:05 PM MDT for Union County, New Mexico; Cimarron County, Oklahoma; 26 counties in Texas. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- May 15, 2018, 7:05 PM MDT (01:05 UTC)
- Expired
- May 15, 2018, 8:30 PM MDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
All 28 counties
Union County, NM, Cimarron County, OK, Armstrong County, TX, Briscoe County, TX, Carson County, TX, Castro County, TX, Crosby County, TX, Dallam County, TX, Deaf Smith County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Hale County, TX, Hall County, TX, Hartley County, TX, Hockley County, TX, Hutchinson County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Moore County, TX, Motley County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Sherman County, TX, Swisher County, TX
The radar
The Amarillo radar (KAMA), 56 km from the middle of the area, began a volume at 01:05 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 00:00Z, 1.1 hours before the alert went out and 57 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
- 1250 J/kg
- Mixed-layer CIN
- -57 J/kg
- Mixed-layer LCL
- 1650 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 5 m²/s²
- 0-3 km storm-relative helicity
- 116 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 4.4
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 16, 10:21 AM MDT | Mesoscale Discussion | SPC | Adair, Cherokee, Choctaw, Haskell, Latimer, LeFlore and 7 more | 2 hr |
| May 16, 1:40 PM MDT | Mesoscale Discussion | SPC | Cimarron, Texas | 2 hr |
| May 16, 1:10 PM MDT | Mesoscale Discussion | SPC | Borden, Coke, Crockett, Edwards, Glasscock, Howard and 9 more | 3 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.