Alert archive / Texas / Mesoscale Discussions in 2014
Mesoscale Discussion 189
The Storm Prediction Center issued this mesoscale discussion at Mar 16, 2014, 5:46 AM CDT for Beauregard Parish, Sabine Parish, Vernon Parish, Louisiana; 34 counties in Texas. It was in force for 119 min.
The area
The outline as issued.
The facts
- Issued
- Mar 16, 2014, 5:46 AM CDT (10:46 UTC)
- Expired
- Mar 16, 2014, 7:45 AM CDT
- In force
- 119 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 20%
All 37 counties
Beauregard Parish, LA, Sabine Parish, LA, Vernon Parish, LA, Atascosa County, TX, Austin County, TX, Bee County, TX, Chambers County, TX, Colorado County, TX, DeWitt County, TX, Duval County, TX, Fayette County, TX, Fort Bend County, TX, Goliad County, TX, Gonzales County, TX, Hardin County, TX, Harris County, TX, Jackson County, TX, Jasper County, TX, Jim Wells County, TX, Karnes County, TX, La Salle County, TX, Lavaca County, TX, Liberty County, TX, Live Oak County, TX, McMullen County, TX, Montgomery County, TX, Newton County, TX, Orange County, TX, Refugio County, TX, Sabine County, TX, San Jacinto County, TX, Tyler County, TX, Victoria County, TX, Waller County, TX, Webb County, TX, Wharton County, TX, Wilson County, TX
The radar
The Houston radar (KHGX), 108 km from the middle of the area, began a volume at 10:46 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
Fort Worth, TX (KFWD), launched 00:00Z, 10.8 hours before the alert went out and 374 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
- 20 J/kg
- Mixed-layer CIN
- -182 J/kg
- Mixed-layer LCL
- 743 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 48 m²/s²
- 0-3 km storm-relative helicity
- 63 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 |
|---|---|---|---|---|
| Mar 16, 1:42 AM CDT | Mesoscale Discussion | SPC | Ascension, East Baton Rouge, East Feliciana, Iberville, Lafayette, Livingston and 10 more | 2 hr |
| Mar 16, 4:20 AM CDT | Mesoscale Discussion | SPC | Tangipahoa, Washington | 115 min |
| Mar 16, 4:51 AM CDT | Tornado Watch | SPC | Saint Tammany, Tangipahoa, Washington | 7 hr |
| Mar 15, 9:51 PM CDT | Mesoscale Discussion | SPC | Falls, Houston, Leon, Limestone, McLennan, Madison and 4 more | 84 min |
Nearby
Mesoscale Discussions in Texas, 2014Mesoscale Discussions in Louisiana, 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.