Alert archive / Texas / Mesoscale Discussions in 2013
Mesoscale Discussion 829
The Storm Prediction Center issued this mesoscale discussion at May 27, 2013, 7:53 PM CDT for 8 counties in Oklahoma; 36 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- May 27, 2013, 7:53 PM CDT (00:53 UTC)
- Expired
- May 27, 2013, 10:00 PM CDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 44 counties
Caddo County, OK, Comanche County, OK, Greer County, OK, Harmon County, OK, Jackson County, OK, Kiowa County, OK, Tillman County, OK, Washita County, OK, Baylor County, TX, Borden County, TX, Childress County, TX, Coke County, TX, Cottle County, TX, Crane County, TX, Crockett County, TX, Dickens County, TX, Fisher County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Hardeman County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Terrell County, TX, Throckmorton County, TX, Tom Green County, TX, Upton County, TX, Wichita County, TX, Wilbarger County, TX
The radar
The Dyess AFB radar (KDYX), 118 km from the middle of the area, began a volume at 00:57 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
Midland Regional, TX (KMAF), launched 00:00Z, 0.9 hours before the alert went out and 232 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
- 2241 J/kg
- Mixed-layer CIN
- -165 J/kg
- Mixed-layer LCL
- 1865 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 121 m²/s²
- 0-3 km storm-relative helicity
- 188 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 8.4
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 28, 2:28 PM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Ellis, Harper, Roger Mills, Woods and 1 more | 62 min |
| May 28, 2:55 PM CDT | Severe Thunderstorm Watch | SPC | Beaver, Cimarron, Ellis, Harper, Texas, Woods and 1 more | 9 hr |
Nearby
Mesoscale Discussions in Texas, 2013Mesoscale Discussions in Oklahoma, 2013Every mesoscale discussion in 2013
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.