Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 770

May 5, 200621 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 5, 2006, 7:26 PM CDT for 21 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 5, 2006, 7:26 PM CDT (00:26 UTC)
Expired
May 5, 2006, 9:30 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 21 counties

Atascosa County, TX, Bandera County, TX, Bexar County, TX, Blanco County, TX, Comal County, TX, Edwards County, TX, Frio County, TX, Gillespie County, TX, Guadalupe County, TX, Hays County, TX, Kendall County, TX, Kerr County, TX, Kimble County, TX, Kinney County, TX, Medina County, TX, Real County, TX, Sutton County, TX, Terrell County, TX, Uvalde County, TX, Val Verde County, TX, Wilson County, TX

The radar

The Laughlin AFB radar (KDFX), 94 km from the middle of the area, began a volume at 00:27 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

Del Rio, TX (KDRT), launched 00:00Z, 0.4 hours before the alert went out and 89 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, Del Rio, TX at 00:00Z on 2006-05-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2991 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, Del Rio, TX at 00:00Z on 2006-05-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
2991 J/kg
Mixed-layer CIN
-43 J/kg
Mixed-layer LCL
1095 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
111 m²/s²
Significant tornado parameter
1.3
Supercell composite
5.2

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 5, 7:07 PM CDTSevere Thunderstorm WatchSPCArcher, Baylor, Bosque, Clay, Comanche, Coryell and 17 more6 hr
May 5, 9:24 PM CDTTornado WatchSPCBell, Bosque, Brown, Callahan, Coke, Coleman and 39 more8 hr
May 5, 11:15 PM CDTMesoscale DiscussionSPCBell, Bosque, Brazos, Brown, Burnet, Callahan and 44 more90 min
May 5, 11:40 PM CDTSevere Thunderstorm WatchSPCBastrop, Blanco, Burnet, Fayette, Gillespie, Lee and 3 more5 hr
May 6, 1:28 AM CDTTornado WatchSPCAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 17 more7 hr
May 6, 2:31 AM CDTMesoscale DiscussionSPCBastrop, Blanco, Brazos, Burleson, Caldwell, Comal and 15 more89 min
May 6, 6:48 AM CDTMesoscale DiscussionSPCChambers, Hardin, Jasper, Jefferson, Newton, Orange and 1 more57 min
May 6, 12:11 PM CDTMesoscale DiscussionSPCBandera, Blanco, Burnet, Edwards, Gillespie, Kendall and 11 more2 hr
May 6, 2:31 PM CDTMesoscale DiscussionSPCBrooks, Cameron, Hidalgo, Jim Hogg, Kenedy, Starr and 2 more119 min
May 6, 2:37 PM CDTSevere Thunderstorm WatchSPCBandera, Bexar, Blanco, Burnet, Comal, Edwards and 16 more6 hr
May 6, 5:35 PM CDTMesoscale DiscussionSPCBlanco, Burnet, Gillespie, Kendall, Kerr, Kimble and 3 more85 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.