Alert archive / Texas / Mesoscale Discussions in 2008

Mesoscale Discussion 481

March 22, 200812 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 22, 2008, 6:15 PM CDT for 12 counties in Texas. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
Mar 22, 2008, 6:15 PM CDT (23:15 UTC)
Expired
Mar 22, 2008, 8:15 PM CDT
In force
2 hr
Issued by
the Storm Prediction Center

Counties Coke County, TX, Concho County, TX, Ector County, TX, Glasscock County, TX, Irion County, TX, Menard County, TX, Midland County, TX, Reagan County, TX, Schleicher County, TX, Sterling County, TX, Tom Green County, TX, Upton County, TX

The radar

The San Angelo radar (KSJT), 81 km from the middle of the area, began a volume at 23:19 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

Midland Regional, TX (KMAF), launched 12:00Z, 11.3 hours before the alert went out and 94 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, Midland Regional, TX at 12:00Z on 2008-03-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Midland Regional, TX at 12:00Z on 2008-03-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 172 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
2115 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
172 m²/s²
0-3 km storm-relative helicity
185 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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Nearby

Mesoscale Discussions in Texas, 2008Every mesoscale discussion in 2008

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.