Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 1014

May 16, 200322 counties in Oklahoma; 37 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 16, 2003, 2:33 AM CDT for 22 counties in Oklahoma; 37 counties in Texas. It was in force for 57 min.

The area

The outline as issued.

The facts

Issued
May 16, 2003, 2:33 AM CDT (07:33 UTC)
Expired
May 16, 2003, 3:30 AM CDT
In force
57 min
Issued by
the Storm Prediction Center
All 59 counties

Atoka County, OK, Bryan County, OK, Carter County, OK, Choctaw County, OK, Cleveland County, OK, Coal County, OK, Garvin County, OK, Hughes County, OK, Jefferson County, OK, Johnston County, OK, Latimer County, OK, Love County, OK, Marshall County, OK, McClain County, OK, McIntosh County, OK, Murray County, OK, Pittsburg County, OK, Pontotoc County, OK, Pottawatomie County, OK, Pushmataha County, OK, Seminole County, OK, Stephens County, OK, Archer County, TX, Callahan County, TX, Clay County, TX, Collin County, TX, Cooke County, TX, Dallas County, TX, Delta County, TX, Denton County, TX, Eastland County, TX, Ellis County, TX, Erath County, TX, Fannin County, TX, Franklin County, TX, Grayson County, TX, Hood County, TX, Hopkins County, TX, Hunt County, TX, Jack County, TX, Johnson County, TX, Kaufman County, TX, Lamar County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, Rains County, TX, Rockwall County, TX, Shackelford County, TX, Smith County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Taylor County, TX, Throckmorton County, TX, Van Zandt County, TX, Wise County, TX, Wood County, TX, Young County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 134 km from the middle of the area, began a volume at 07:36 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, 7.6 hours before the alert went out and 105 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.

Skew-T log-pSkew-T log-p diagram, Fort Worth, TX at 00:00Z on 2003-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2441 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2003-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 104 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2441 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
748 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
104 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
1.5
Supercell composite
10.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

760 
ACUS11 KWNS 160733
SWOMCD
SPC MCD 160733 
TXZ000-OKZ000-160830-

MESOSCALE DISCUSSION 1014
NWS STORM PREDICTION CENTER NORMAN OK
0233 AM CDT FRI MAY 16 2003

AREAS AFFECTED...PORTIONS OF NRN TX...INCLUDING THE DFW
METROPLEX/SRN-SERN OK

CONCERNING...TORNADO WATCH 387...389...

VALID 160733Z - 160830Z

NEW WW MAY BE REQUIRED FOR PORTIONS OF NRN TX TO THE EAST OF WW 387
IN THE NEXT HOUR.

REGIONAL RADARS SHOW A LINE OF STRONG/SEVERE STORMS EXTENDING FROM
SOUTH CENTRAL OK /STEPHENS COUNTY/ SWD TO STEPHENS COUNTY TX... WITH
ADDITIONAL STORMS DEVELOPING SWD OVER EASTLAND COUNTY TX.  THE
STRONGEST PORTION OF THIS LINE IS OVER CLAY COUNTY TX...WITH THIS
STORM EXPECTED TO MOVE INTO THE SWRN PORTION OF WW 389 BY 0730Z.  A
SECOND LINE OF MORE INTENSE STORMS WAS LOCATED WEST OF THE FIRST
LINE...AND EXTENDS FROM BAYLOR TO JONES COUNTIES TX. 

06Z FTW SOUNDING SHOWS THE CAP WEAKENING OVER NRN TX...SUGGESTING
STORMS SHOULD REMAIN OF SIMILAR INTENSITY...AS THEY TRACK INTO A
VERY FAVORABLE ENVIRONMENT FOR LARGE HAIL/DAMAGING WINDS.  DEEP
LAYER SHEAR VECTORS CONTINUE TO CROSS THE LINE OF STORMS...
SUPPORTING SUPERCELLS WITH A TORNADO THREAT...GIVEN STRONG    
LOW-LEVEL SHEAR.

..PETERS.. 05/16/2003

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...SHV...TSA...FWD...OUN...SJT...

34719796 35409765 35419527 33129516 32299522 32209762
32270004

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 15, 8:38 PM CDTMesoscale DiscussionSPCCotton, Jackson, Jefferson, Stephens, Tillman2 hr
May 15, 10:25 PM CDTTornado WatchSPCCotton, Jackson, Jefferson, Stephens, Tillman6 hr
May 15, 10:30 PM CDTMesoscale DiscussionSPCAlfalfa, Beaver, Beckham, Blaine, Custer, Dewey and 8 more2 hr
May 15, 11:32 PM CDTMesoscale DiscussionSPCCimarron, Texas118 min
May 15, 11:35 PM CDTTornado WatchSPCAlfalfa, Beckham, Blaine, Caddo, Canadian, Comanche and 13 more4 hr
May 15, 11:49 PM CDTMesoscale DiscussionSPCCotton, Jackson, Jefferson, Stephens, Tillman86 min
May 16, 1:20 AM CDTTornado WatchSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 33 more6 hr
May 16, 1:22 AM CDTMesoscale DiscussionSPCAlfalfa, Blaine, Caddo, Canadian, Cleveland, Custer and 16 more53 min
May 16, 3:07 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Carter, Choctaw, Cleveland, Coal and 33 more53 min
May 16, 4:04 AM CDTMesoscale DiscussionSPCAdair, Atoka, Bryan, Carter, Cherokee, Choctaw and 36 more56 min
May 16, 4:25 AM CDTSevere Thunderstorm WatchSPCAdair, Cherokee, Craig, Delaware, Haskell, LeFlore and 4 more5 hr
May 16, 5:22 AM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Coal, Johnston, Latimer and 10 more53 min
May 16, 5:47 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Haskell, LeFlore, McCurtain and 2 more58 min
May 16, 6:35 AM CDTMesoscale DiscussionSPCAdair, Cherokee, Delaware, Haskell, LeFlore, McCurtain and 2 more25 min
May 16, 9:16 AM CDTMesoscale DiscussionSPCChoctaw, Latimer, McCurtain, Pushmataha119 min
May 16, 11:35 AM CDTMesoscale DiscussionSPCCaddo, Canadian, Cleveland, Creek, Garfield, Grady and 20 more2 hr
May 16, 12:00 PM CDTTornado WatchSPCAdair, Canadian, Cherokee, Craig, Creek, Delaware and 23 more6 hr
May 16, 12:09 PM CDTMesoscale DiscussionSPCAtoka, Bryan, Choctaw, Haskell, Latimer, LeFlore and 3 more3 hr
May 16, 12:45 PM CDTTornado WatchSPCAtoka, Bryan, Choctaw, Coal, Haskell, Hughes and 10 more5 hr
May 16, 1:46 PM CDTMesoscale DiscussionSPCCherokee, Creek, Lincoln, Logan, McIntosh, Mayes and 12 more89 min
May 16, 3:18 PM CDTMesoscale DiscussionSPCLeFlore, McCurtain117 min
May 16, 3:55 PM CDTTornado WatchSPCAdair6 hr
May 16, 5:06 PM CDTMesoscale DiscussionSPCMcCurtain54 min
May 16, 5:45 PM CDTTornado WatchSPCMcCurtain6 hr

Nearby

Mesoscale Discussions in Texas, 2003Mesoscale Discussions in Oklahoma, 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.