Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 596

April 9, 200828 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2008, 6:00 AM CDT for 28 counties in Texas. It was in force for 60 min.

The area

The outline as issued.

The facts

Issued: Apr 9, 2008, 6:00 AM CDT (11:00 UTC)
Expired: Apr 9, 2008, 7:00 AM CDT
In force: 60 min
Issued by: the Storm Prediction Center

All 28 counties

Armstrong County, TX, Bailey County, TX, Briscoe County, TX, Castro County, TX, Childress County, TX, Cochran County, TX, Collingsworth County, TX, Cottle County, TX, Crosby County, TX, Dickens County, TX, Donley County, TX, Floyd County, TX, Foard County, TX, Garza County, TX, Hale County, TX, Hall County, TX, Hardeman County, TX, Hockley County, TX, Kent County, TX, King County, TX, Lamb County, TX, Lubbock County, TX, Lynn County, TX, Motley County, TX, Stonewall County, TX, Swisher County, TX, Terry County, TX, Yoakum County, TX

The radar

The Lubbock radar (KLBB), 39 km from the middle of the area, began a volume at 11:01 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 11.0 hours before the alert went out and 141 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2593 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 52 m²/s²
0-3 km storm-relative helicity: 158 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
ACUS11 KWNS 091101
SWOMCD
SPC MCD 091100 
TXZ000-OKZ000-NMZ000-091200-

MESOSCALE DISCUSSION 0596
NWS STORM PREDICTION CENTER NORMAN OK
0600 AM CDT WED APR 09 2008

AREAS AFFECTED...TX SOUTH PLAINS

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

VALID 091100Z - 091200Z

LOW LEVEL WARM ADVECTION IS EXPECTED TO INCREASE MARKEDLY OVER THE
NEXT FEW HOURS ACROSS THE TX SOUTH PLAINS AS LLJ STRENGTHENS IN
ADVANCE OF UPPER TROUGH.  THIS PROCESS APPEARS TO BE WELL UNDER WAY
AS NUMEROUS SHOWERS...AND NOW ISOLATED THUNDERSTORMS...HAVE
DEVELOPED FROM SERN NM INTO MUCH OF WRN TX.  BOUNDARY LAYER REMAINS
QUITE COOL AND THIS ACTIVITY WILL CONTINUE TO DEVELOP IN AN ELEVATED
FASHION...ROOTED MOST LIKELY NEAR 800 MB.  MUCAPE SHOULD INCREASE
BEYOND 1000 J/KG AS MOISTURE RETURNS JUST OFF THE SFC.  HAIL SHOULD
BECOME COMMON WITH STRONGER UPDRAFTS AND A FEW STORMS WILL LIKELY
PRODUCE SEVERE HAIL.  WW MAY BE REQUIRED IN THE NEXT HOUR OR SO.

..DARROW.. 04/09/2008

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

ATTN...WFO...OUN...SJT...LUB...AMA...MAF...ABQ...

34360310 35400042 34129943 32760062 32770301

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 7:33 PM CDT	Mesoscale Discussion	SPC	Bowie, Camp, Cass, Franklin, Gregg, Harrison and 6 more	117 min
Apr 8, 8:06 PM CDT	Mesoscale Discussion	SPC	Bell, Bosque, Burnet, Coryell, Ellis, Falls and 16 more	114 min
Apr 8, 8:48 PM CDT	Tornado Watch	SPC	Bell, Burnet, Coryell, Falls, Gillespie, Kimble and 11 more	2 hr
Apr 8, 10:36 PM CDT	Mesoscale Discussion	SPC	Bosque, Bowie, Brown, Camp, Cass, Collin and 34 more	84 min
Apr 8, 11:51 PM CDT	Severe Thunderstorm Watch	SPC	Bosque, Bowie, Camp, Cass, Collin, Comanche and 39 more	5 hr
Apr 9, 3:29 AM CDT	Mesoscale Discussion	SPC	Bosque, Bowie, Camp, Cass, Collin, Comanche and 39 more	61 min
Apr 9, 6:27 AM CDT	Severe Thunderstorm Watch	SPC	Andrews, Armstrong, Bailey, Borden, Briscoe, Carson and 36 more	8 hr
Apr 9, 9:06 AM CDT	Mesoscale Discussion	SPC	Andrews, Archer, Armstrong, Bailey, Baylor, Borden and 64 more	54 min
Apr 9, 9:35 AM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Clay, Fisher, Foard, Hardeman and 14 more	6 hr
Apr 9, 12:24 PM CDT	Mesoscale Discussion	SPC	Archer, Armstrong, Baylor, Briscoe, Carson, Childress and 37 more	66 min
Apr 9, 12:46 PM CDT	Mesoscale Discussion	SPC	Bosque, Brown, Callahan, Coke, Coleman, Comanche and 41 more	59 min
Apr 9, 1:20 PM CDT	Tornado Watch PDS	SPC	Bosque, Brown, Callahan, Coke, Coleman, Comanche and 40 more	7 hr
Apr 9, 3:33 PM CDT	Mesoscale Discussion	SPC	Collin, Cooke, Dallas, Delta, Denton, Ellis and 16 more	27 min
Apr 9, 3:48 PM CDT	Tornado Watch PDS	SPC	Anderson, Collin, Cooke, Dallas, Delta, Denton and 22 more	7 hr
Apr 9, 4:01 PM CDT	Mesoscale Discussion	SPC	Cass, Harrison, Marion	59 min
Apr 9, 5:12 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Bell, Borden, Bosque, Brown and 51 more	63 min
Apr 9, 6:12 PM CDT	Mesoscale Discussion	SPC	Briscoe, Childress, Cottle, Crosby, Dickens, Floyd and 13 more	63 min
Apr 9, 6:55 PM CDT	Severe Thunderstorm Watch	SPC	Archer, Baylor, Childress, Clay, Cottle, Dickens and 8 more	8 hr
Apr 9, 6:59 PM CDT	Mesoscale Discussion	SPC	Brown, Callahan, Coke, Coleman, Comanche, Concho and 34 more	61 min

Nearby

Mesoscale Discussions in Texas, 2008 Every mesoscale discussion in 2008

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.