Alert archive / Texas / Mesoscale Discussions in 2012
Mesoscale Discussion 268
The Storm Prediction Center issued this mesoscale discussion at Mar 16, 2012, 2:44 PM CDT for 25 counties in Texas. It was in force for 61 min.
The area
The outline as issued.
The facts
- Issued
- Mar 16, 2012, 2:44 PM CDT (19:44 UTC)
- Expired
- Mar 16, 2012, 3:45 PM CDT
- In force
- 61 min
- Issued by
- the Storm Prediction Center
All 25 counties
Borden County, TX, Cottle County, TX, Crane County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Ector County, TX, Fisher County, TX, Garza County, TX, Glasscock County, TX, Howard County, TX, Kent County, TX, King County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Pecos County, TX, Reagan County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Upton County, TX, Ward County, TX
The radar
The Midland/Odessa radar (KMAF), 63 km from the middle of the area, began a volume at 19:46 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Midland Regional, TX (KMAF), launched 12:00Z, 7.7 hours before the alert went out and 64 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
- 855 J/kg
- Mixed-layer CIN
- -253 J/kg
- Mixed-layer LCL
- 1535 m above ground
- 0-6 km bulk shear
- 35 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 16 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -1.7
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, 3:12 PM CDT | Severe Thunderstorm Watch | SPC | Andrews, Borden, Brewster, Coke, Crane, Crockett and 20 more | 6 hr |
| Mar 16, 3:47 PM CDT | Severe Thunderstorm Watch | SPC | Armstrong, Briscoe, Childress, Collingsworth, Cottle, Crosby and 23 more | 5 hr |
Nearby
Mesoscale Discussions in Texas, 2012Every mesoscale discussion in 2012
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.