Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 612

April 9, 200841 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Apr 9, 2008, 11:46 PM CDT for 41 counties in Texas. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued
Apr 9, 2008, 11:46 PM CDT (04:46 UTC)
Expired
Apr 10, 2008, 12:45 AM CDT
In force
59 min
Issued by
the Storm Prediction Center
All 41 counties

Andrews County, TX, Borden County, TX, Brown County, TX, Callahan County, TX, Coke County, TX, Coleman County, TX, Concho County, TX, Crane County, TX, Crockett County, TX, Dawson County, TX, Ector County, TX, Edwards County, TX, Fisher County, TX, Glasscock County, TX, Howard County, TX, Irion County, TX, Jones County, TX, Kimble County, TX, Martin County, TX, Mason County, TX, McCulloch County, TX, Menard County, TX, Midland County, TX, Mitchell County, TX, Nolan County, TX, Pecos County, TX, Reagan County, TX, Runnels County, TX, San Saba County, TX, Schleicher County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Sutton County, TX, Taylor County, TX, Terrell County, TX, Tom Green County, TX, Upton County, TX, Val Verde County, TX, Ward County, TX, Winkler County, TX

The radar

The San Angelo radar (KSJT), 70 km from the middle of the area, began a volume at 04:46 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

Midland Regional, TX (KMAF), launched 00:00Z, 4.8 hours before the alert went out and 220 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 00:00Z on 2008-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 895 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, Midland Regional, TX at 00:00Z on 2008-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 180 square meters per square second.1939587897117Sfc1 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
895 J/kg
Mixed-layer CIN
-190 J/kg
Mixed-layer LCL
2374 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
180 m²/s²
0-3 km storm-relative helicity
315 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

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
Apr 9, 7:28 PM CDTMesoscale DiscussionSPCBowie, Camp, Cass, Franklin, Morris, Red River and 1 more62 min
Apr 9, 7:44 PM CDTTornado WatchSPCBorden, Brown, Callahan, Coke, Coleman, Concho and 34 more8 hr
Apr 9, 8:10 PM CDTTornado WatchSPCRed River6 hr
Apr 9, 8:13 PM CDTMesoscale DiscussionSPCAnderson, Bosque, Collin, Cooke, Dallas, Delta and 26 more62 min
Apr 9, 10:01 PM CDTMesoscale DiscussionSPCArcher, Clay, Collin, Cooke, Delta, Denton and 8 more59 min
Apr 9, 10:40 PM CDTTornado WatchSPCArcher, Bosque, Clay, Collin, Comanche, Cooke and 30 more7 hr
Apr 9, 11:22 PM CDTMesoscale DiscussionSPCBaylor, Childress, Collingsworth, Cottle, Dickens, Foard and 8 more53 min
Apr 10, 1:36 AM CDTMesoscale DiscussionSPCArcher, Brown, Callahan, Clay, Coleman, Comanche and 19 more54 min
Apr 10, 3:30 AM CDTMesoscale DiscussionSPCAnderson, Bell, Camp, Collin, Dallas, Delta and 26 more60 min
Apr 10, 3:54 AM CDTTornado WatchSPCAnderson, Angelina, Bell, Bowie, Brazos, Camp and 36 more8 hr
Apr 10, 5:55 AM CDTMesoscale DiscussionSPCAnderson, Bowie, Camp, Cherokee, Franklin, Freestone and 10 more65 min
Apr 10, 8:32 AM CDTMesoscale DiscussionSPCAnderson, Bowie, Cass, Cherokee, Gregg, Harrison and 12 more58 min
Apr 10, 10:51 AM CDTMesoscale DiscussionSPCShelby84 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.