Alert archive / Texas / Mesoscale Discussions in 2003
Mesoscale Discussion 68
The Storm Prediction Center issued this mesoscale discussion at Feb 14, 2003, 9:12 PM CST for 28 counties in Texas. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Feb 14, 2003, 9:12 PM CST (03:12 UTC)
- Expired
- Feb 14, 2003, 11:15 PM CST
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 28 counties
Atascosa County, TX, Bandera County, TX, Bee County, TX, Bexar County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Dimmit County, TX, Duval County, TX, Fayette County, TX, Frio County, TX, Goliad County, TX, Gonzales County, TX, Guadalupe County, TX, Jim Wells County, TX, Karnes County, TX, Kendall County, TX, Kleberg County, TX, La Salle County, TX, Lavaca County, TX, Live Oak County, TX, McMullen County, TX, Medina County, TX, Nueces County, TX, San Patricio County, TX, Webb County, TX, Wilson County, TX, Zavala County, TX
The radar
The Corpus Christi radar (KCRP), 131 km from the middle of the area, began a volume at 03:14 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
Corpus Christi, TX (KCRP), launched 00:00Z, 3.2 hours before the alert went out and 147 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
- 830 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 685 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 69 m²/s²
- 0-3 km storm-relative helicity
- -56 m²/s²
- Significant tornado parameter
- -0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
812 ACUS11 KWNS 150312 SWOMCD SPC MCD 150312 TXZ000-150515- MESOSCALE DISCUSSION 0068 NWS STORM PREDICTION CENTER NORMAN OK 0912 PM CST FRI FEB 14 2003 AREAS AFFECTED...S TX CONCERNING...SEVERE THUNDERSTORM WATCH 4... VALID 150312Z - 150515Z THE THREAT OF LARGE HAIL AND DAMAGING WINDS WILL CONTINUE WITH TSTMS MOVING INTO WRN AND SRN PORTIONS WW 004. REGIONAL RADAR DATA SHOWS THUNDERSTORMS MOVING OUT OF COAHUILA/NUEVO LEON MEXICO INTO WW 004. THIS ACTIVITY IS LIKELY ASSOCIATED WITH A SHORTWAVE TROUGH LIFTING NEWD OUT OF NRN MEXICO --PER WATER VAPOR IMAGERY AND LOCALIZED SURFACE PRESSURE FALLS OVER THE TX HILL COUNTRY. THE AIRMASS OVER THE WATCH AREA REMAINS SLIGHTLY UNSTABLE WITH SBCAPES OF 1000-1500 J/KG AND REGIONAL VWP/PROFILER DATA CONTINUES TO INDICATE FAVORABLE WIND SHEAR PROFILES FOR ORGANIZED CONVECTION. LATEST ETA GUIDANCE SUGGESTS THAT LARGE SCALE ASCENT WILL CONTINUE TO INCREASE ACROSS THE AREA OVER THE NEXT SEVERAL HOURS AS A RESULT OF DPVA ASSOCIATED WITH THIS SHORTWAVE...AS WELL AS UPPER-LEVEL DIVERGENCE IN THE ENTRANCE REGION OF A SUBTROPICAL JET MAXIMUM TRANSLATING ACROSS THE TX COAST. THIS ASCENT MAY HELP TO ORGANIZE CONVECTION CURRENTLY OVER WW WITH LARGE HAIL AND DAMAGING WINDS THE MAIN THREATS. ..MEAD/GOSS.. 02/15/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... 27389902 27380040 28709985 30039930 30049788 30039646 28709705 27389763
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 6:57 PM CST | Mesoscale Discussion | SPC | Anderson, Bastrop, Bell, Blanco, Bosque, Bowie and 43 more | 2 hr |
| Feb 14, 7:37 PM CST | Mesoscale Discussion | SPC | Anderson, Bastrop, Bell, Blanco, Bosque, Bowie and 43 more | 113 min |
| Feb 14, 10:16 PM CST | Mesoscale Discussion | SPC | Atascosa, Bandera, Bastrop, Bee, Bell, Bexar and 40 more | 119 min |
| Feb 15, 12:31 AM CST | Mesoscale Discussion | SPC | Atascosa, Bexar, Brooks, Duval, Frio, Jim Hogg and 7 more | 119 min |
| Feb 15, 4:12 AM CST | Mesoscale Discussion | SPC | Refugio | 3 hr |
| Feb 15, 4:35 AM CST | Severe Thunderstorm Watch | SPC | Brooks, Cameron, Duval, Hidalgo, Jim Hogg, Jim Wells and 6 more | 4 hr |
| Feb 15, 6:48 AM CST | Mesoscale Discussion | SPC | Brooks, Cameron, Duval, Hidalgo, Jim Hogg, Jim Wells and 6 more | 87 min |
| Feb 15, 2:47 PM CST | Mesoscale Discussion | SPC | Atascosa, Bee, DeWitt, Goliad, Jim Wells, Karnes and 6 more | 118 min |
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.