Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 862

May 14, 200617 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 14, 2006, 11:05 AM CDT for 17 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued
May 14, 2006, 11:05 AM CDT (16:05 UTC)
Expired
May 14, 2006, 2:00 PM CDT
In force
3 hr
Issued by
the Storm Prediction Center

Counties Bell County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Falls County, TX, Freestone County, TX, Grimes County, TX, Hays County, TX, Lee County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, Milam County, TX, Robertson County, TX, Travis County, TX, Walker County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 41 km from the middle of the area, began a volume at 16:05 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

Fort Worth, TX (KFWD), launched 12:00Z, 4.1 hours before the alert went out and 211 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 2006-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 610 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 12:00Z on 2006-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.193958Sfc1 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
610 J/kg
Mixed-layer CIN
-393 J/kg
Mixed-layer LCL
1168 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.7

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 13, 9:37 PM CDTMesoscale DiscussionSPCArcher, Baylor, Clay, Collin, Cooke, Dallas and 20 more83 min
May 13, 10:14 PM CDTSevere Thunderstorm WatchSPCArcher, Bowie, Camp, Cass, Clay, Collin and 39 more8 hr
May 13, 11:52 PM CDTSevere Thunderstorm WatchSPCShelby6 hr
May 14, 2:27 AM CDTMesoscale DiscussionSPCBowie, Camp, Cass, Cherokee, Collin, Cooke and 33 more93 min
May 14, 5:23 AM CDTMesoscale DiscussionSPCAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 26 more67 min
May 14, 5:52 AM CDTSevere Thunderstorm WatchSPCAnderson, Angelina, Brazos, Camp, Cass, Cherokee and 34 more7 hr
May 14, 9:04 AM CDTMesoscale DiscussionSPCAnderson, Angelina, Austin, Bastrop, Bell, Blanco and 47 more86 min
May 14, 9:25 AM CDTSevere Thunderstorm WatchSPCAnderson, Angelina, Austin, Bastrop, Bell, Bexar and 55 more7 hr
May 14, 12:23 PM CDTMesoscale DiscussionSPCAustin, Bastrop, Bell, Bexar, Blanco, Brazoria and 37 more2 hr
May 14, 3:07 PM CDTMesoscale DiscussionSPCAtascosa, Austin, Bandera, Bastrop, Bexar, Blanco and 47 more53 min
May 14, 3:35 PM CDTSevere Thunderstorm WatchSPCAransas, Atascosa, Austin, Bandera, Bastrop, Bee and 55 more7 hr
May 14, 6:37 PM CDTMesoscale DiscussionSPCAransas, Atascosa, Bandera, Bee, Bexar, Brooks and 36 more83 min
May 14, 6:58 PM CDTSevere Thunderstorm WatchSPCBrooks, Cameron, Duval, Hidalgo, Jim Hogg, Jim Wells and 8 more6 hr

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.