Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 831

May 10, 200632 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 10, 2006, 2:34 PM CDT for 32 counties in Texas. It was in force for 116 min.

The area

The outline as issued.

The facts

Issued
May 10, 2006, 2:34 PM CDT (19:34 UTC)
Expired
May 10, 2006, 4:30 PM CDT
In force
116 min
Issued by
the Storm Prediction Center
All 32 counties

Aransas County, TX, Austin County, TX, Bee County, TX, Brazoria County, TX, Brooks County, TX, Calhoun County, TX, Colorado County, TX, DeWitt County, TX, Duval County, TX, Fort Bend County, TX, Goliad County, TX, Harris County, TX, Hidalgo County, TX, Jackson County, TX, Jim Hogg County, TX, Jim Wells County, TX, Karnes County, TX, Kenedy County, TX, Kleberg County, TX, Lavaca County, TX, Liberty County, TX, Live Oak County, TX, Matagorda County, TX, Montgomery County, TX, Nueces County, TX, Refugio County, TX, San Jacinto County, TX, San Patricio County, TX, Starr County, TX, Victoria County, TX, Waller County, TX, Wharton County, TX

The radar

The Corpus Christi radar (KCRP), 52 km from the middle of the area, began a volume at 19:33 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

Corpus Christi, TX (KCRP), launched 12:00Z, 7.6 hours before the alert went out and 51 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, Corpus Christi, TX at 12:00Z on 2006-05-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3220 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, Corpus Christi, TX at 12:00Z on 2006-05-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 49 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
3220 J/kg
Mixed-layer CIN
-404 J/kg
Mixed-layer LCL
862 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
49 m²/s²
0-3 km storm-relative helicity
41 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.

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SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 9, 8:06 PM CDTMesoscale DiscussionSPCChildress, Collingsworth, Donley, Gray, Hall, Hardeman and 2 more84 min
May 9, 9:18 PM CDTTornado WatchSPCBowie, Red River6 hr
May 9, 9:38 PM CDTMesoscale DiscussionSPCArcher, Clay, Cooke, Fannin, Grayson, Hardeman and 5 more97 min
May 9, 10:46 PM CDTSevere Thunderstorm WatchSPCArcher, Clay, Collin, Cooke, Delta, Fannin and 6 more7 hr
May 10, 4:01 AM CDTMesoscale DiscussionSPCBowie, Collin, Cooke, Delta, Fannin, Franklin and 8 more89 min
May 10, 4:24 AM CDTSevere Thunderstorm WatchSPCBowie, Cass, Franklin, Morris, Red River, Titus8 hr
May 10, 6:27 AM CDTMesoscale DiscussionSPCBowie, Red River93 min
May 10, 12:50 PM CDTMesoscale DiscussionSPCAngelina, Nacogdoches, Panola, Sabine, San Augustine, Shelby and 1 more115 min
May 10, 1:13 PM CDTTornado WatchSPCAngelina, Cherokee, Hardin, Jasper, Nacogdoches, Newton and 6 more8 hr
May 10, 2:59 PM CDTSevere Thunderstorm WatchSPCAustin, Brazoria, Chambers, Colorado, Fort Bend, Galveston and 11 more5 hr
May 10, 3:20 PM CDTSevere Thunderstorm WatchSPCAransas, Bee, Brooks, Calhoun, Cameron, DeWitt and 15 more7 hr
May 10, 5:04 PM CDTMesoscale DiscussionSPCBrazoria, Calhoun, Chambers, Colorado, Fort Bend, Galveston and 5 more116 min
May 10, 6:06 PM CDTMesoscale DiscussionSPCAransas, Brooks, Hidalgo, Jim Hogg, Jim Wells, Kenedy and 6 more114 min

Nearby

Mesoscale Discussions in Texas, 2006Every mesoscale discussion in 2006

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.