Alert archive / Texas / Mesoscale Discussions in 2010

Mesoscale Discussion 565

May 14, 201017 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 14, 2010, 6:02 PM CDT for 17 counties in Texas. It was in force for 118 min.

The area

The outline as issued.

The facts

Issued: May 14, 2010, 6:02 PM CDT (23:02 UTC)
Expired: May 14, 2010, 8:00 PM CDT
In force: 118 min
Issued by: the Storm Prediction Center

Counties Aransas County, TX, Brazoria County, TX, Calhoun County, TX, Chambers County, TX, Fort Bend County, TX, Galveston County, TX, Grimes County, TX, Harris County, TX, Houston County, TX, Liberty County, TX, Matagorda County, TX, Montgomery County, TX, Polk County, TX, Refugio County, TX, San Jacinto County, TX, Trinity County, TX, Walker County, TX

The radar

The Houston radar (KHGX), 88 km from the middle of the area, began a volume at 23:03 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

Fort Worth, TX (KFWD), launched 12:00Z, 11.0 hours before the alert went out and 379 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: 2529 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 530 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 113 m²/s²
0-3 km storm-relative helicity: 96 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 3.8

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
May 14, 3:09 AM CDT	Mesoscale Discussion	SPC	Cochran, Loving, Yoakum	96 min
May 14, 5:12 AM CDT	Severe Thunderstorm Watch	SPC	Andrews, Bailey, Cochran, Gaines, Parmer, Yoakum	8 hr
May 14, 7:09 AM CDT	Mesoscale Discussion	SPC	Bandera, Bexar, Comal, Gillespie, Kendall, Medina	2 hr
May 14, 7:51 AM CDT	Mesoscale Discussion	SPC	Andrews, Bailey, Cochran, Gaines, Parmer, Yoakum	84 min
May 14, 10:20 AM CDT	Mesoscale Discussion	SPC	Callahan, Cooke, Denton, Eastland, Grayson, Hood and 10 more	3 hr
May 14, 12:11 PM CDT	Mesoscale Discussion	SPC	Andrews, Crane, Ector, Gaines, Glasscock, Irion and 8 more	94 min
May 14, 12:45 PM CDT	Tornado Watch	SPC	Andrews, Brown, Callahan, Coke, Coleman, Concho and 36 more	9 hr
May 14, 4:42 PM CDT	Mesoscale Discussion	SPC	Bowie, Camp, Cass, Marion, Morris, Titus and 1 more	63 min
May 14, 4:59 PM CDT	Severe Thunderstorm Watch	SPC	Bowie, Camp, Cass, Franklin, Marion, Morris and 4 more	7 hr
May 14, 5:26 PM CDT	Mesoscale Discussion	SPC	Andrews, Coke, Concho, Crane, Crockett, Ector and 20 more	64 min

Nearby

Mesoscale Discussions in Texas, 2010 Every mesoscale discussion in 2010

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.