Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 1321

June 12, 2005Haskell County, Jones County, Shackelford County, Texas

The Storm Prediction Center issued this mesoscale discussion at Jun 12, 2005, 9:32 PM CDT for Haskell County, Jones County, Shackelford County, Texas. It was in force for 28 min.

The area

The outline as issued.

The facts

Issued
Jun 12, 2005, 9:32 PM CDT (02:32 UTC)
Expired
Jun 12, 2005, 10:00 PM CDT
In force
28 min
Issued by
the Storm Prediction Center

Counties Haskell County, TX, Jones County, TX, Shackelford County, TX

The radar

The Dyess AFB radar (KDYX), 75 km from the middle of the area, began a volume at 02:33 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, 2.5 hours before the alert went out and 242 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 2005-06-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1177 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 2005-06-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
1177 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
1857 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

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

000 
ACUS11 KWNS 130233
SWOMCD
SPC MCD 130232 
TXZ000-130300-

MESOSCALE DISCUSSION 1321
NWS STORM PREDICTION CENTER NORMAN OK
0932 PM CDT SUN JUN 12 2005

AREAS AFFECTED...NW TX

CONCERNING...TORNADO WATCH 470...

VALID 130232Z - 130300Z

WW LIKELY WILL BE CANCELLED SHORTLY.

CONVECTIVE DEVELOPMENT HAS BECOME ISOLATED AND CONTINUES TO WEAKEN
AS IT DEVELOPS AWAY FROM DRY LINE.  ACTIVITY LIKELY WILL DIMINISH
NORTHWEST/NORTH OF ABILENE WITHIN THE NEXT HOUR OR TWO...AS
CONVECTIVE INHIBITION INCREASES FOR BOUNDARY LAYER BASED PARCELS...
WITH LOSS OF HEATING.

..KERR.. 06/13/2005

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

ATTN...WFO...SJT...LUB...

33060039 33380001 33189923 32579914 32530010

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 12, 7:20 PM CDTTornado WatchSPCCallahan, Coke, Eastland, Fisher, Jones, Nolan and 4 more4 hr
Jun 13, 4:20 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Callahan, Clay, Cooke, Foard and 14 more7 hr
Jun 13, 5:41 PM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Knox, Montague, Throckmorton and 2 more2 hr

Nearby

Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005

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.