Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 1007

May 24, 20089 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 24, 2008, 3:50 PM CDT for 9 counties in Texas. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued
May 24, 2008, 3:50 PM CDT (20:50 UTC)
Expired
May 24, 2008, 4:45 PM CDT
In force
55 min
Issued by
the Storm Prediction Center

Counties Coke County, TX, Fisher County, TX, Haskell County, TX, Irion County, TX, Jones County, TX, Mitchell County, TX, Nolan County, TX, Sterling County, TX, Throckmorton County, TX

The radar

The Dyess AFB radar (KDYX), 103 km from the middle of the area, began a volume at 20:52 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 watches that followed

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

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 8.8 hours before the alert went out and 181 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, Midland Regional, TX at 12:00Z on 2008-05-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Midland Regional, TX at 12:00Z on 2008-05-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 153 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1932 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
153 m²/s²
0-3 km storm-relative helicity
211 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 242051
SWOMCD
SPC MCD 242050 
TXZ000-242145-

MESOSCALE DISCUSSION 1007
NWS STORM PREDICTION CENTER NORMAN OK
0350 PM CDT SAT MAY 24 2008

AREAS AFFECTED...LOW ROLLING PLAINS INTO THE ERN TRANSPECOS

CONCERNING...SEVERE POTENTIAL...WATCH POSSIBLE 

VALID 242050Z - 242145Z

ISOLD HIGH-BASED TSTMS MAY DEVELOP OVER A SMALL PART OF WCNTRL TX
ANYWHERE FROM NRN REAGAN COUNTY NEWD INTO SERN MITCHELL TO
HASKELL/THROCKMORTON.  A SUSTAINED STORM MAY EXHIBIT BRIEF SUPERCELL
CHARACTERISTICS WITH LARGE HAIL OWING TO VERY STEEP LAPSE RATES. 
BUT...STORMS SHOULD GO OUTFLOW DOMINANT GIVEN FAIRLY DRY COLUMN.  

VSBL SATL SHOWS AGITATED CU FIELD ALONG NWWD EDGE OF MORE
SUBSTANTIAL MOISTURE FLOWING NWWD TOWARD THE LOW ROLLING PLAINS. 
LIGHT N WINDS AT SNYDER MAY BE INDICATIVE OF A WEAK MESO-LOW WEST OF
KDYS...ENHANCING SFC CONVERGENCE IN THAT AREA.  IT IS FAIRLY WARM
ALOFT...BUT PERSISTENT CONVERGENCE...STRONG HEATING...STEEP LAPSE
RATES AND VERY HOT TEMPERATURES MAY LEAD TO ISOLD STORM INITIATION. 
DEEP LAYER WIND FIELDS ARE WEAK...BUT SUCH STRONG INSTABILITY WILL
CONTRIBUTE TO VIGOROUS UPDRAFTS YIELDING LARGE HAIL AND GUSTY WINDS.

..RACY.. 05/24/2008

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

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

31190154 31830143 32850045 33379957 33309910 33079908
32749950 32130012 31310086

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 23, 8:17 PM CDTMesoscale DiscussionSPCCollingsworth, Donley, Gray, Hemphill, Lipscomb, Ochiltree and 2 more58 min
May 23, 10:33 PM CDTMesoscale DiscussionSPCCollingsworth, Donley, Gray, Hemphill, Lipscomb, Wheeler57 min
May 23, 11:51 PM CDTMesoscale DiscussionSPCCollingsworth, Wheeler54 min
May 24, 5:19 PM CDTSevere Thunderstorm WatchSPCCoke, Fisher, Glasscock, Haskell, Howard, Irion and 13 more7 hr

Nearby

Mesoscale Discussions in Texas, 2008Every 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.