Alert archive / Texas / Mesoscale Discussions in 2007

Mesoscale Discussion 282

March 13, 2007Brooks County, Jim Hogg County, Kenedy County, Texas

The Storm Prediction Center issued this mesoscale discussion at Mar 13, 2007, 11:11 PM CDT for Brooks County, Jim Hogg County, Kenedy County, Texas. It was in force for 64 min.

The area

The outline as issued.

The facts

Issued: Mar 13, 2007, 11:11 PM CDT (04:11 UTC)
Expired: Mar 14, 2007, 12:15 AM CDT
In force: 64 min
Issued by: the Storm Prediction Center

Counties Brooks County, TX, Jim Hogg County, TX, Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 103 km from the middle of the area, began a volume at 04:14 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 00:00Z, 4.2 hours before the alert went out and 109 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: 440 J/kg
Mixed-layer CIN: -162 J/kg
Mixed-layer LCL: 1164 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 180 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.3

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 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
Mar 14, 6:46 PM CDT	Mesoscale Discussion	SPC	Aransas, Austin, Bee, Calhoun, Colorado, DeWitt and 10 more	59 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.