Alert archive / Texas / Mesoscale Discussions in 2014
Mesoscale Discussion 641
The Storm Prediction Center issued this mesoscale discussion at May 21, 2014, 2:04 PM MDT for 4 counties in New Mexico; 24 counties in Texas. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- May 21, 2014, 2:04 PM MDT (20:04 UTC)
- Expired
- May 21, 2014, 3:00 PM MDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 40%
All 28 counties
Curry County, NM, Lea County, NM, Quay County, NM, Roosevelt County, NM, Andrews County, TX, Armstrong County, TX, Bailey County, TX, Carson County, TX, Castro County, TX, Cochran County, TX, Deaf Smith County, TX, Gaines County, TX, Gray County, TX, Hockley County, TX, Hutchinson County, TX, Lamb County, TX, Loving County, TX, Moore County, TX, Ochiltree County, TX, Oldham County, TX, Parmer County, TX, Potter County, TX, Randall County, TX, Roberts County, TX, Swisher County, TX, Terry County, TX, Winkler County, TX, Yoakum County, TX
The radar
The Lubbock radar (KLBB), 85 km from the middle of the area, began a volume at 20:06 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, 8.1 hours before the alert went out and 136 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 4561 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -14 m²/s²
- 0-3 km storm-relative helicity
- 59 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 21, 3:52 PM MDT | Severe Thunderstorm Watch | SPC | Lea | 6 hr |
Nearby
Mesoscale Discussions in Texas, 2014Mesoscale Discussions in New Mexico, 2014Every mesoscale discussion in 2014
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.