Alert archive / Texas / Mesoscale Discussions in 2007
Mesoscale Discussion 616
The Storm Prediction Center issued this mesoscale discussion at Apr 29, 2007, 3:50 PM CDT for 27 counties in Texas. It was in force for 55 min.
The area
The outline as issued.
The facts
- Issued
- Apr 29, 2007, 3:50 PM CDT (20:50 UTC)
- Expired
- Apr 29, 2007, 4:45 PM CDT
- In force
- 55 min
- Issued by
- the Storm Prediction Center
All 27 counties
Andrews County, TX, Borden County, TX, Coke County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Gaines County, TX, Garza County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lynn County, TX, Martin County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Runnels County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Tom Green County, TX
The radar
The Midland/Odessa radar (KMAF), 106 km from the middle of the area, began a volume at 20:53 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, 8.8 hours before the alert went out and 106 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
- 996 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 603 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.3
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 29, 12:59 AM CDT | Mesoscale Discussion | SPC | Dimmit, Kinney, Maverick, Zavala | 2 hr |
| Apr 29, 5:11 AM CDT | Mesoscale Discussion | SPC | Brewster, Crockett, Jeff Davis, Pecos, Presidio, Terrell and 2 more | 2 hr |
| Apr 29, 7:43 AM CDT | Mesoscale Discussion | SPC | Andrews, Brewster, Crane, Crockett, Ector, Glasscock and 16 more | 3 hr |
| Apr 29, 12:03 PM CDT | Mesoscale Discussion | SPC | Brewster, Crane, Crockett, Culberson, Hudspeth, Jeff Davis and 6 more | 57 min |
| Apr 29, 12:34 PM CDT | Tornado Watch | SPC | Brewster, Crane, Crockett, Culberson, Jeff Davis, Loving and 11 more | 7 hr |
| Apr 29, 3:12 PM CDT | Mesoscale Discussion | SPC | Brewster, Crane, Crockett, Culberson, Jeff Davis, Loving and 11 more | 63 min |
| Apr 29, 4:56 PM CDT | Severe Thunderstorm Watch | SPC | Baylor, Callahan, Coke, Coleman, Concho, Ector and 24 more | 6 hr |
| Apr 29, 6:34 PM CDT | Mesoscale Discussion | SPC | Atascosa, Bandera, Bexar, Blanco, Comal, Dimmit and 20 more | 86 min |
Nearby
Mesoscale Discussions in Texas, 2007Every mesoscale discussion in 2007
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.