Alert archive / Texas / Mesoscale Discussions in 2003
Mesoscale Discussion 714
The Storm Prediction Center issued this mesoscale discussion at May 3, 2003, 6:49 PM CDT for 4 states. It was in force for 56 min.
The area
The outline as issued.
The facts
- Issued
- May 3, 2003, 6:49 PM CDT (23:49 UTC)
- Expired
- May 3, 2003, 7:45 PM CDT
- In force
- 56 min
- Issued by
- the Storm Prediction Center
All 50 counties
Columbia County, AR, Hempstead County, AR, Lafayette County, AR, Little River County, AR, Miller County, AR, Nevada County, AR, Sevier County, AR, Bossier Parish, LA, Caddo Parish, LA, De Soto Parish, LA, Red River Parish, LA, Webster Parish, LA, Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Coal County, OK, Garvin County, OK, Johnston County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McCurtain County, OK, Murray County, OK, Pontotoc County, OK, Pushmataha County, OK, Bowie County, TX, Camp County, TX, Cass County, TX, Collin County, TX, Cooke County, TX, Delta County, TX, Denton County, TX, Fannin County, TX, Franklin County, TX, Grayson County, TX, Gregg County, TX, Harrison County, TX, Hopkins County, TX, Hunt County, TX, Lamar County, TX, Marion County, TX, Morris County, TX, Panola County, TX, Rains County, TX, Red River County, TX, Rockwall County, TX, Titus County, TX, Upshur County, TX, Wood County, TX
The radar
The Dallas/Ft Worth radar (KFWS), 197 km from the middle of the area, began a volume at 23:52 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 12:00Z, 11.8 hours before the alert went out and 179 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
- 452 J/kg
- Mixed-layer CIN
- -351 J/kg
- Mixed-layer LCL
- 955 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 104 m²/s²
- 0-3 km storm-relative helicity
- 180 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
161 ACUS11 KWNS 032349 SWOMCD SPC MCD 032349 ARZ000-LAZ000-TXZ000-OKZ000-040045- MESOSCALE DISCUSSION 0714 NWS STORM PREDICTION CENTER NORMAN OK 0649 PM CDT SAT MAY 03 2003 AREAS AFFECTED...FAR SWRN AR/NWRN LA/NORTH CENTRAL-NERN TX/SOUTH CENTRAL-SERN OK CONCERNING...TORNADO WATCH 220... VALID 032349Z - 040045Z WW 220 MAY BE CANCELLED SHORTLY. HOWEVER..A NEW WW MAY BE REQUIRED LATER THIS EVENING OVER NORTH CENTRAL TX/SOUTH CENTRAL OK. WV IMAGERY SHOWS THE UPPER RIDGE AXIS MOVING EWD OVER ERN OK/ERN TX WHICH APPEARS TO BE CONTINUING TO SUPPRESS DEEP CONVECTION OVER THIS REGION. VAD/PROFILERS SHOWS THE AXIS OF THE LLJ IS OVER THE FAR WRN PORTION OF WW 220 AND EXTENDS FROM CENTRAL TX INTO CENTRAL OK. DESPITE MODERATE INSTABILITY AND STRONG DEEP LAYER SHEAR OVER NORTH CENTRAL TX/SOUTH CENTRAL OK EWD INTO SWRN AR/NWRN LA...CONVECTIVE DEVELOPMENT IS NOT ANTICIPATED UNTIL THE RIDGE AXIS MOVES EAST OF THIS AREA. ..PETERS.. 05/03/2003 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...LZK...SHV...TSA...FWD...OUN... 35099748 34529546 33759307 31759306 32469543 33059758
SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 2, 9:30 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 13 more | 2 hr |
| May 2, 9:50 PM CDT | Severe Thunderstorm Watch | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 15 more | 5 hr |
| May 2, 11:42 PM CDT | Mesoscale Discussion | SPC | Bradley, Calhoun, Clark, Cleveland, Columbia, Dallas and 15 more | 93 min |
| May 3, 2:36 AM CDT | Mesoscale Discussion | SPC | Arkansas, Ashley, Bradley, Calhoun, Chicot, Cleburne and 26 more | 24 min |
| May 3, 12:29 PM CDT | Mesoscale Discussion | SPC | Columbia, Hempstead, Lafayette, Little River, Miller, Nevada and 2 more | 3 hr |
| May 3, 1:40 PM CDT | Tornado Watch | SPC | Columbia, Hempstead, Lafayette, Little River, Miller, Nevada and 1 more | 6 hr |
| May 3, 3:42 PM CDT | Mesoscale Discussion | SPC | Columbia, Hempstead, Lafayette, Little River, Miller, Nevada and 1 more | 2 hr |
| May 3, 4:36 PM CDT | Mesoscale Discussion | SPC | Livingston, Orleans, Saint Charles, Saint Helena, Saint John the Baptist, Saint Tammany and 2 more | 114 min |
| May 3, 4:45 PM CDT | Severe Thunderstorm Watch | SPC | Concordia, East Baton Rouge, East Carroll, East Feliciana, Franklin, Livingston and 9 more | 5 hr |
| May 3, 1:42 PM CDT | Mesoscale Discussion | SPC | Beaver, Beckham, Greer, Harmon, Jackson, Roger Mills and 2 more | 3 hr |
| May 3, 4:00 PM CDT | Tornado Watch | SPC | Caddo, Comanche, Cotton, Grady, Greer, Harmon and 5 more | 5 hr |
| May 3, 6:10 PM CDT | Mesoscale Discussion | SPC | Beckham, Blaine, Caddo, Comanche, Cotton, Custer and 11 more | 65 min |
| May 2, 8:09 PM CDT | Mesoscale Discussion | SPC | Anderson, Bell, Bosque, Burnet, Comanche, Coryell and 23 more | 96 min |
| May 2, 10:25 PM CDT | Mesoscale Discussion | SPC | Bosque, Brown, Callahan, Coleman, Comanche, Concho and 11 more | 95 min |
Nearby
Mesoscale Discussions in Texas, 2003Mesoscale Discussions in Oklahoma, 2003Mesoscale Discussions in Arkansas, 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.