Alert archive / Texas / Mesoscale Discussions in 2014
Mesoscale Discussion 217
The Storm Prediction Center issued this mesoscale discussion at Mar 28, 2014, 3:11 PM CDT for Miller County, Arkansas; 6 parishes in Louisiana; 62 counties in Texas. It was in force for 94 min.
The area
The outline as issued.
The facts
- Issued
- Mar 28, 2014, 3:11 PM CDT (20:11 UTC)
- Expired
- Mar 28, 2014, 4:45 PM CDT
- In force
- 94 min
- Issued by
- the Storm Prediction Center
All 69 counties
Miller County, AR, Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Red River Parish, LA, Sabine Parish, LA, Webster Parish, LA, Anderson County, TX, Angelina County, TX, Bell County, TX, Bosque County, TX, Bowie County, TX, Brazos County, TX, Burleson County, TX, Camp County, TX, Cass County, TX, Cherokee County, TX, Collin County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Falls County, TX, Franklin County, TX, Freestone County, TX, Gregg County, TX, Grimes County, TX, Harrison County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Houston County, TX, Hunt County, TX, Jasper County, TX, Johnson County, TX, Kaufman County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, Marion County, TX, McLennan County, TX, Milam County, TX, Montgomery County, TX, Morris County, TX, Nacogdoches County, TX, Navarro County, TX, Newton County, TX, Panola County, TX, Polk County, TX, Rains County, TX, Robertson County, TX, Rockwall County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, San Jacinto County, TX, Shelby County, TX, Smith County, TX, Titus County, TX, Travis County, TX, Trinity County, TX, Tyler County, TX, Upshur County, TX, Van Zandt County, TX, Walker County, TX, Washington County, TX, Williamson County, TX, Wood County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 173 km from the middle of the area, began a volume at 20:13 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, 8.2 hours before the alert went out and 189 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
- 1120 J/kg
- Mixed-layer CIN
- -221 J/kg
- Mixed-layer LCL
- 1065 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 103 m²/s²
- 0-3 km storm-relative helicity
- 118 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
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 |
|---|---|---|---|---|
| Mar 27, 7:55 PM CDT | Mesoscale Discussion | SPC | Benton, Boone, Carroll, Crawford, Franklin, Johnson and 4 more | 2 hr |
| Mar 27, 9:44 PM CDT | Severe Thunderstorm Watch | SPC | Baxter, Boone, Carroll, Conway, Crawford, Franklin and 18 more | 4 hr |
| Mar 28, 12:45 PM CDT | Mesoscale Discussion | SPC | Ashley, Bradley, Calhoun, Chicot, Clark, Cleveland and 17 more | 2 hr |
| Mar 28, 2:35 PM CDT | Severe Thunderstorm Watch | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Clark and 29 more | 7 hr |
| Mar 28, 5:43 PM CDT | Mesoscale Discussion | SPC | Chicot, Desha, Phillips | 2 hr |
| Mar 28, 6:22 PM CDT | Severe Thunderstorm Watch | SPC | Lee, Phillips | 5 hr |
| Mar 28, 6:38 PM CDT | Mesoscale Discussion | SPC | Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 35 more | 3 hr |
| Mar 28, 6:53 PM CDT | Mesoscale Discussion | SPC | De Soto, Red River, Sabine | 2 hr |
| Mar 28, 12:35 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Blanco, Bosque, Brazos, Burleson and 48 more | 115 min |
| Mar 28, 12:47 PM CDT | Severe Thunderstorm Watch | SPC | Anderson, Bastrop, Bell, Blanco, Bosque, Burnet and 50 more | 6 hr |
| Mar 28, 3:57 PM CDT | Severe Thunderstorm Watch | SPC | Brazos, Burleson, Grimes, Hardin, Houston, Jasper and 10 more | 6 hr |
| Mar 28, 5:19 PM CDT | Severe Thunderstorm Watch | SPC | Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 5 more | 5 hr |
Nearby
Mesoscale Discussions in Texas, 2014Mesoscale Discussions in Louisiana, 2014Mesoscale Discussions in Arkansas, 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.