Alert archive / Texas / Mesoscale Discussions in 2006

Mesoscale Discussion 94

February 1, 200624 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Feb 1, 2006, 2:45 PM CST for 24 counties in Texas. It was in force for 90 min.

The area

The outline as issued.

The facts

Issued
Feb 1, 2006, 2:45 PM CST (20:45 UTC)
Expired
Feb 1, 2006, 4:15 PM CST
In force
90 min
Issued by
the Storm Prediction Center
All 24 counties

Angelina County, TX, Bastrop County, TX, Brazos County, TX, Burleson County, TX, Caldwell County, TX, Cherokee County, TX, Fayette County, TX, Grimes County, TX, Houston County, TX, Lee County, TX, Leon County, TX, Madison County, TX, Milam County, TX, Nacogdoches County, TX, Polk County, TX, Robertson County, TX, Rusk County, TX, San Augustine County, TX, San Jacinto County, TX, Travis County, TX, Trinity County, TX, Walker County, TX, Washington County, TX, Williamson County, TX

The radar

The Ft Hood radar (KGRK), 68 km from the middle of the area, began a volume at 20:46 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

Corpus Christi, TX (KCRP), launched 12:00Z, 8.8 hours before the alert went out and 339 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 2006-02-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 48 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 2006-02-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 152 square meters per square second.19395878Sfc1 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
48 J/kg
Mixed-layer CIN
-475 J/kg
Mixed-layer LCL
681 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
152 m²/s²
0-3 km storm-relative helicity
243 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
Feb 1, 12:28 PM CSTMesoscale DiscussionSPCAngelina, Aransas, Austin, Bastrop, Bee, Brazoria and 52 more2 hr
Feb 1, 1:51 PM CSTTornado WatchSPCAustin, Brazoria, Calhoun, Chambers, Colorado, Fort Bend and 19 more7 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.