Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 2363

November 10, 2008Cotton County, Jefferson County, Tillman County, Oklahoma; 35 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Nov 10, 2008, 3:47 PM CST for Cotton County, Jefferson County, Tillman County, Oklahoma; 35 counties in Texas. It was in force for 58 min.

The area

The outline as issued.

The facts

Issued
Nov 10, 2008, 3:47 PM CST (21:47 UTC)
Expired
Nov 10, 2008, 4:45 PM CST
In force
58 min
Issued by
the Storm Prediction Center
All 38 counties

Cotton County, OK, Jefferson County, OK, Tillman County, OK, Archer County, TX, Blanco County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Clay County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Eastland County, TX, Erath County, TX, Gillespie County, TX, Hamilton County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Kimble County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Montague County, TX, Palo Pinto County, TX, Parker County, TX, San Saba County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Wichita County, TX, Wise County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 64 km from the middle of the area, began a volume at 21:47 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

Fort Worth, TX (KFWD), launched 12:00Z, 9.8 hours before the alert went out and 160 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 12:00Z on 2008-11-10Temperature 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, Fort Worth, TX at 12:00Z on 2008-11-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 380 square meters per square second.1939587897Sfc1 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
882 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
380 m²/s²
0-3 km storm-relative helicity
483 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

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

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 10, 12:25 PM CSTTornado WatchSPCCotton, Tillman7 hr
Nov 10, 12:59 PM CSTMesoscale DiscussionSPCBeaver, Texas91 min
Nov 10, 9:03 AM CSTMesoscale DiscussionSPCCalhoun, Matagorda57 min
Nov 10, 11:33 AM CSTMesoscale DiscussionSPCBlanco, Bosque, Brown, Burnet, Callahan, Coleman and 25 more57 min

Nearby

Mesoscale Discussions in Texas, 2008Mesoscale Discussions in Oklahoma, 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.