Alert archive / Texas / Mesoscale Discussions in 2005

Mesoscale Discussion 1040

May 28, 200522 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 28, 2005, 3:57 PM CDT for 22 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 28, 2005, 3:57 PM CDT (20:57 UTC)
Expired
May 28, 2005, 6:00 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center
All 22 counties

Anderson County, TX, Bell County, TX, Brazos County, TX, Burleson County, TX, Burnet County, TX, Coryell County, TX, Falls County, TX, Freestone County, TX, Grimes County, TX, Henderson County, TX, Hill County, TX, Houston County, TX, Leon County, TX, Limestone County, TX, Madison County, TX, McLennan County, TX, Milam County, TX, Navarro County, TX, Robertson County, TX, Trinity County, TX, Walker County, TX, Williamson County, TX

The watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 9.0 hours before the alert went out and 338 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, Shreveport, LA at 12:00Z on 2005-05-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 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, Shreveport, LA at 12:00Z on 2005-05-28The 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
44 J/kg
Mixed-layer CIN
-212 J/kg
Mixed-layer LCL
1417 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
35 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 28, 1:25 AM CDTMesoscale DiscussionSPCBandera, Blanco, Burnet, Coryell, Edwards, Gillespie and 15 more3 hr
May 28, 2:00 AM CDTMesoscale DiscussionSPCCochran, Hockley, Lubbock, Terry, Yoakum2 hr
May 28, 6:25 PM CDTSevere Thunderstorm WatchSPCAngelina, Nacogdoches, Sabine, San Augustine, Shelby6 hr
May 28, 6:41 PM CDTMesoscale DiscussionSPCBandera, Bell, Blanco, Brown, Burnet, Coleman and 29 more2 hr

Nearby

Mesoscale Discussions in Texas, 2005Every mesoscale discussion in 2005

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.