Alert archive / Texas / Mesoscale Discussions in 2015
Mesoscale Discussion 312
The Storm Prediction Center issued this mesoscale discussion at Apr 16, 2015, 2:42 PM CDT for Love County, Oklahoma; 81 counties in Texas. It was in force for 63 min.
The area
The outline as issued.
The facts
- Issued
- Apr 16, 2015, 2:42 PM CDT (19:42 UTC)
- Expired
- Apr 16, 2015, 3:45 PM CDT
- In force
- 63 min
- Issued by
- the Storm Prediction Center
All 82 counties
Love County, OK, Anderson County, TX, Aransas County, TX, Austin County, TX, Bastrop County, TX, Bee County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Bosque County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Calhoun County, TX, Collin County, TX, Colorado County, TX, Comal County, TX, Comanche County, TX, Cooke County, TX, Coryell County, TX, Dallas County, TX, Denton County, TX, DeWitt County, TX, Ellis County, TX, Erath County, TX, Falls County, TX, Fannin County, TX, Fayette County, TX, Fort Bend County, TX, Freestone County, TX, Gillespie County, TX, Goliad County, TX, Gonzales County, TX, Grayson County, TX, Grimes County, TX, Guadalupe County, TX, Hamilton County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Houston County, TX, Hunt County, TX, Jack County, TX, Jackson County, TX, Johnson County, TX, Karnes County, TX, Kaufman County, TX, Kendall County, TX, Lampasas County, TX, Lavaca County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, Madison County, TX, Mason County, TX, McLennan County, TX, Milam County, TX, Mills County, TX, Montague County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Refugio County, TX, Robertson County, TX, Rockwall County, TX, San Saba County, TX, Somervell County, TX, Tarrant County, TX, Travis County, TX, Van Zandt County, TX, Victoria County, TX, Walker County, TX, Waller County, TX, Washington County, TX, Wharton County, TX, Williamson County, TX, Wilson County, TX, Wise County, TX
The radar
The Ft Hood radar (KGRK), 77 km from the middle of the area, began a volume at 19:44 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
Fort Worth, TX (KFWD), launched 12:00Z, 7.7 hours before the alert went out and 159 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
- 521 J/kg
- Mixed-layer CIN
- -142 J/kg
- Mixed-layer LCL
- 884 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 98 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 |
|---|---|---|---|---|
| Apr 16, 12:17 PM CDT | Mesoscale Discussion | SPC | Beaver, Harper | 118 min |
| Apr 16, 1:48 PM CDT | Tornado Watch | SPC | Beaver, Texas | 8 hr |
| Apr 16, 4:06 PM CDT | Mesoscale Discussion | SPC | Jackson | 2 hr |
| Apr 16, 4:40 PM CDT | Severe Thunderstorm Watch | SPC | Comanche, Cotton, Greer, Harmon, Jackson, Kiowa and 1 more | 7 hr |
| Apr 16, 4:44 PM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Custer, Dewey, Ellis, Greer and 7 more | 3 hr |
| Apr 16, 4:59 PM CDT | Severe Thunderstorm Watch | SPC | Alfalfa, Beckham, Blaine, Caddo, Custer, Dewey and 9 more | 7 hr |
| Apr 16, 5:06 PM CDT | Mesoscale Discussion | SPC | Beaver, Texas | 84 min |
| Apr 16, 5:29 PM CDT | Mesoscale Discussion | SPC | Cimarron | 91 min |
| Apr 16, 5:41 PM CDT | Mesoscale Discussion | SPC | Beckham, Roger Mills | 94 min |
| Apr 16, 6:09 PM CDT | Tornado Watch | SPC | Beckham, Ellis, Greer, Harmon, Roger Mills | 6 hr |
| Apr 16, 12:49 PM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Castro, Crosby, Donley and 15 more | 116 min |
| Apr 16, 1:34 PM CDT | Mesoscale Discussion | SPC | Austin, Bastrop, Bell, Bexar, Blanco, Bosque and 48 more | 116 min |
| Apr 16, 2:22 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Aransas, Austin, Bastrop, Bee, Bell and 81 more | 8 hr |
| Apr 16, 4:59 PM CDT | Mesoscale Discussion | SPC | Angelina, Cherokee, Gregg, Hardin, Houston, Jasper and 12 more | 91 min |
| Apr 16, 6:19 PM CDT | Mesoscale Discussion | SPC | Anderson, Aransas, Austin, Bastrop, Bell, Bexar and 84 more | 86 min |
Nearby
Mesoscale Discussions in Texas, 2015Mesoscale Discussions in Oklahoma, 2015Every mesoscale discussion in 2015
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.