Alert archive / Texas / Mesoscale Discussions in 2007
Mesoscale Discussion 546
The Storm Prediction Center issued this mesoscale discussion at Apr 23, 2007, 5:19 PM CDT for 37 counties in Texas. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- Apr 23, 2007, 5:19 PM CDT (22:19 UTC)
- Expired
- Apr 23, 2007, 6:15 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 37 counties
Borden County, TX, Coke County, TX, Concho County, TX, Cottle County, TX, Crosby County, TX, Dawson County, TX, Dickens County, TX, Fisher County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Hale County, TX, Hardeman County, TX, Haskell County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Lubbock County, TX, Lynn County, TX, Martin County, TX, Midland County, TX, Mitchell County, TX, Motley County, TX, Nolan County, TX, Reagan County, TX, Runnels County, TX, Scurry County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Tom Green County, TX, Upton County, TX, Wilbarger County, TX
The radar
The Midland/Odessa radar (KMAF), 102 km from the middle of the area, began a volume at 22:23 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, 10.3 hours before the alert went out and 103 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
- 820 J/kg
- Mixed-layer CIN
- -206 J/kg
- Mixed-layer LCL
- 1281 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 196 m²/s²
- 0-3 km storm-relative helicity
- 198 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 3.7
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 |
|---|---|---|---|---|
| Apr 23, 2:02 PM CDT | Mesoscale Discussion | SPC | Armstrong, Briscoe, Carson, Childress, Collingsworth, Cottle and 15 more | 103 min |
| Apr 23, 3:44 PM CDT | Tornado Watch | SPC | Armstrong, Briscoe, Carson, Childress, Collingsworth, Donley and 14 more | 6 hr |
| Apr 23, 5:35 PM CDT | Tornado Watch | SPC | Baylor, Borden, Callahan, Coke, Cottle, Crane and 34 more | 5 hr |
| Apr 23, 5:40 PM CDT | Mesoscale Discussion | SPC | Crockett, Dimmit, Edwards, Kerr, Kimble, Kinney and 6 more | 2 hr |
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.