Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 288

March 14, 200716 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 14, 2007, 6:46 PM CDT for 16 counties in Texas. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued: Mar 14, 2007, 6:46 PM CDT (23:46 UTC)
Expired: Mar 14, 2007, 7:45 PM CDT
In force: 59 min
Issued by: the Storm Prediction Center

Counties Aransas County, TX, Austin County, TX, Bee County, TX, Calhoun County, TX, Colorado County, TX, DeWitt County, TX, Fort Bend County, TX, Goliad County, TX, Jackson County, TX, Lavaca County, TX, Matagorda County, TX, Nueces County, TX, Refugio County, TX, San Patricio County, TX, Victoria County, TX, Wharton County, TX

The radar

The Corpus Christi radar (KCRP), 118 km from the middle of the area, began a volume at 23:50 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, 11.8 hours before the alert went out and 118 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1516 J/kg
Mixed-layer CIN: -51 J/kg
Mixed-layer LCL: 463 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 241 m²/s²
0-3 km storm-relative helicity: 376 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 9.0

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.

Issued	Product	Office	Counties	Lasted
Mar 13, 9:35 PM CDT	Mesoscale Discussion	SPC	Aransas, Bee, Brazoria, Calhoun, Chambers, Goliad and 6 more	115 min
Mar 13, 11:11 PM CDT	Mesoscale Discussion	SPC	Brooks, Jim Hogg, Kenedy	64 min
Mar 14, 9:52 AM CDT	Mesoscale Discussion	SPC	Aransas, Atascosa, Austin, Bastrop, Bee, Bell and 37 more	113 min
Mar 14, 10:34 AM CDT	Severe Thunderstorm Watch	SPC	Aransas, Austin, Bee, Brazoria, Brazos, Burleson and 24 more	8 hr
Mar 14, 1:05 PM CDT	Mesoscale Discussion	SPC	Angelina, Austin, Bastrop, Bell, Brazoria, Brazos and 33 more	85 min
Mar 14, 3:11 PM CDT	Mesoscale Discussion	SPC	Aransas, Austin, Bastrop, Bee, Brazoria, Caldwell and 25 more	94 min
Mar 14, 6:17 PM CDT	Mesoscale Discussion	SPC	Jefferson, Orange	88 min

Nearby

Mesoscale Discussions in Texas, 2007 Every mesoscale discussion in 2007

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.