Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 148

February 5, 200846 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 5, 2008, 2:00 AM CST for 46 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
Feb 5, 2008, 2:00 AM CST (08:00 UTC)
Expired
Feb 5, 2008, 4:30 AM CST
In force
3 hr
Issued by
the Storm Prediction Center
All 46 counties

Bandera County, TX, Blanco County, TX, Bosque County, TX, Brown County, TX, Burnet County, TX, Callahan County, TX, Coleman County, TX, Comanche County, TX, Concho County, TX, Coryell County, TX, Dallas County, TX, Denton County, TX, Eastland County, TX, Edwards County, TX, Ellis County, TX, Erath County, TX, Gillespie County, TX, Hamilton County, TX, Hill County, TX, Hood County, TX, Jack County, TX, Johnson County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Lampasas County, TX, Llano County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Mills County, TX, Nolan County, TX, Palo Pinto County, TX, Parker County, TX, Real County, TX, Runnels County, TX, San Saba County, TX, Shackelford County, TX, Somervell County, TX, Stephens County, TX, Tarrant County, TX, Taylor County, TX, Uvalde County, TX, Wise County, TX, Young County, TX

The radar

The San Angelo radar (KSJT), 141 km from the middle of the area, began a volume at 08:01 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

Fort Worth, TX (KFWD), launched 00:00Z, 8.0 hours before the alert went out and 243 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 2008-02-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 799 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 2008-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
799 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1287 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
77 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.3

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
Feb 5, 2:28 AM CSTSevere Thunderstorm WatchSPCBell, Bosque, Collin, Comanche, Cooke, Coryell and 36 more6 hr
Feb 5, 5:03 AM CSTMesoscale DiscussionSPCBosque, Collin, Cooke, Dallas, Delta, Denton and 17 more117 min
Feb 5, 11:16 AM CSTMesoscale DiscussionSPCBowie, Camp, Cass, Franklin, Gregg, Harrison and 14 more89 min
Feb 5, 11:56 AM CSTTornado WatchSPCBowie, Camp, Cass, Delta, Fannin, Franklin and 11 more7 hr
Feb 5, 2:15 PM CSTMesoscale DiscussionSPCAnderson, Bowie, Camp, Cass, Collin, Dallas and 23 more90 min
Feb 5, 3:17 PM CSTMesoscale DiscussionSPCBowie, Delta, Franklin, Hopkins, Lamar, Rains and 2 more88 min
Feb 5, 3:59 PM CSTSevere Thunderstorm WatchSPCAnderson, Angelina, Cherokee, Gregg, Harrison, Leon and 7 more4 hr
Feb 5, 5:54 PM CSTMesoscale DiscussionSPCAustin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 14 more96 min

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.