Alert archive / Texas / Mesoscale Discussions in 2004
Mesoscale Discussion 80
The Storm Prediction Center issued this mesoscale discussion at Feb 4, 2004, 11:49 PM CST for 59 counties in Texas. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- Feb 4, 2004, 11:49 PM CST (05:49 UTC)
- Expired
- Feb 5, 2004, 1:15 AM CST
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 59 counties
Anderson County, TX, Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bell County, TX, Bexar County, TX, Blanco County, TX, Bosque County, TX, Bowie County, TX, Burleson County, TX, Burnet County, TX, Caldwell County, TX, Camp County, TX, Cass County, TX, Collin County, TX, Comal County, TX, Coryell County, TX, Dallas County, TX, Delta County, TX, Ellis County, TX, Falls County, TX, Fannin County, TX, Franklin County, TX, Freestone County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Henderson County, TX, Hill County, TX, Hopkins County, TX, Hunt County, TX, Karnes County, TX, Kaufman County, TX, Kendall County, TX, Lamar County, TX, Lampasas County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Llano County, TX, McLennan County, TX, Medina County, TX, Milam County, TX, Morris County, TX, Navarro County, TX, Rains County, TX, Red River County, TX, Robertson County, TX, Rockwall County, TX, Smith County, TX, Titus County, TX, Travis County, TX, Upshur County, TX, Uvalde County, TX, Van Zandt County, TX, Williamson County, TX, Wilson County, TX, Wood County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 5.8 hours before the alert went out and 226 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
- 3 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 465 m above ground
- 0-6 km bulk shear
- 82 kt
- 0-1 km storm-relative helicity
- 262 m²/s²
- 0-3 km storm-relative helicity
- 313 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted, in the capitals the NWS used until 2016.
361 ACUS11 KWNS 050550 SWOMCD SPC MCD 050549 ARZ000-TXZ000-OKZ000-050715- MESOSCALE DISCUSSION 0080 NWS STORM PREDICTION CENTER NORMAN OK 1149 PM CST WED FEB 04 2004 AREAS AFFECTED...CNTRL AND ERN TX CONCERNING...SEVERE THUNDERSTORM WATCH 4... VALID 050549Z - 050715Z UPPER SPEED MAX CONTINUES TO TRANSLATE ENEWD INTO CNTRL TX WITH ASSOCIATED STEEPER MIDLEVEL LAPSE RATES SPREADING ATOP ENHANCED MOISTURE JUST ABOVE THE SURFACE. THIS HAS CONTRIBUTED TO SUFFICIENT ELEVATED INSTABILITY TO SUPPORT NUMEROUS TSTMS. VERTICAL SHEAR IN THE CAPE BEARING LAYER HAS BEEN SUFFICIENT FOR ORGANIZED STORMS AND GIVEN RELATIVELY COOL COLUMN...LARGE HAIL WILL CONTINUE TO BE A THREAT. ADDITIONAL BANDS OF TSTMS HAVE BEEN DEVELOPING IN THE HILL COUNTRY N/W OF KSAT AND WILL BE ROTATING ENEWD INTO THE WW THE NEXT FEW HOURS. THUS...THE HAIL THREAT WILL CONTINUE FOR MUCH OF THE WW. ..RACY.. 02/05/2004 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...SHV...HGX...FWD...OUN...EWX...SJT... 28890015 33759627 33689386 28889779
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 4, 8:09 PM CST | Mesoscale Discussion | SPC | Anderson, Angelina, Austin, Brazoria, Brazos, Burleson and 29 more | 96 min |
| Feb 4, 9:20 PM CST | Severe Thunderstorm Watch | SPC | Anderson, Atascosa, Bandera, Bastrop, Bell, Bexar and 52 more | 6 hr |
| Feb 4, 11:37 PM CST | Mesoscale Discussion | SPC | Hardin, Jasper, Liberty, Newton, Orange, Polk and 3 more | 83 min |
| Feb 5, 1:16 AM CST | Mesoscale Discussion | SPC | Angelina, Austin, Brazos, Cherokee, Colorado, Grimes and 20 more | 119 min |
| Feb 5, 5:40 AM CST | Tornado Watch | SPC | Jefferson, Orange | 6 hr |
Nearby
Mesoscale Discussions in Texas, 2004Every mesoscale discussion in 2004
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.