Alert archive / Texas / Mesoscale Discussions in 2003
Mesoscale Discussion 1312
The Storm Prediction Center issued this mesoscale discussion at Jun 11, 2003, 1:20 AM CDT for 35 counties in Texas. It was in force for 115 min.
The area
The outline as issued.
The facts
- Issued
- Jun 11, 2003, 1:20 AM CDT (06:20 UTC)
- Expired
- Jun 11, 2003, 3:15 AM CDT
- In force
- 115 min
- Issued by
- the Storm Prediction Center
All 35 counties
Anderson County, TX, Archer County, TX, Bosque County, TX, Camp County, TX, Cherokee County, TX, Clay County, TX, Collin County, TX, Dallas County, TX, Denton County, TX, Ellis County, TX, Erath County, TX, Freestone County, TX, Gregg County, TX, Henderson County, TX, Hill County, TX, Hood County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Navarro County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Rusk County, TX, Smith County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Upshur County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX, Young County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 25 km from the middle of the area, began a volume at 06:21 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, 6.3 hours before the alert went out and 26 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
- 1559 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1564 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 105 m²/s²
- 0-3 km storm-relative helicity
- 147 m²/s²
- Significant tornado parameter
- 0.3
- Supercell composite
- 3.3
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 |
|---|---|---|---|---|
| Jun 10, 9:38 PM CDT | Mesoscale Discussion | SPC | Collin, Cooke, Delta, Denton, Fannin, Grayson and 4 more | 2 hr |
| Jun 11, 1:48 AM CDT | Mesoscale Discussion | SPC | Bowie, Cass, Morris | 3 hr |
| Jun 11, 12:59 PM CDT | Mesoscale Discussion | SPC | Crockett, Edwards, Kimble, Schleicher, Sutton, Terrell and 1 more | 91 min |
| Jun 11, 3:25 PM CDT | Mesoscale Discussion | SPC | Archer, Baylor, Briscoe, Callahan, Childress, Clay and 35 more | 2 hr |
| Jun 11, 3:55 PM CDT | Tornado Watch | SPC | Borden, Callahan, Coke, Coleman, Concho, Crockett and 31 more | 5 hr |
| Jun 11, 4:40 PM CDT | Tornado Watch | SPC | Archer, Baylor, Childress, Clay, Collingsworth, Donley and 13 more | 5 hr |
Nearby
Mesoscale Discussions in Texas, 2003Every mesoscale discussion in 2003
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.