Alert archive / Texas / Mesoscale Discussions in 2003

Mesoscale Discussion 875

May 9, 200322 counties in Texas

The Storm Prediction Center issued this mesoscale discussion at May 9, 2003, 9:08 AM CDT for 22 counties in Texas. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: May 9, 2003, 9:08 AM CDT (14:08 UTC)
Expired: May 9, 2003, 11:45 AM CDT
In force: 3 hr
Issued by: the Storm Prediction Center

All 22 counties

Borden County, TX, Callahan County, TX, Coke County, TX, Dickens County, TX, Fisher County, TX, Foard County, TX, Garza County, TX, Glasscock County, TX, Haskell County, TX, Howard County, TX, Jones County, TX, Kent County, TX, King County, TX, Knox County, TX, Mitchell County, TX, Nolan County, TX, Scurry County, TX, Shackelford County, TX, Sterling County, TX, Stonewall County, TX, Taylor County, TX, Throckmorton County, TX

The nearest sounding before it

Midland Regional, TX (KMAF), launched 12:00Z, 2.1 hours before the alert went out and 149 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 4389 m above ground
0-6 km bulk shear: 59 kt
0-1 km storm-relative helicity: -13 m²/s²
0-3 km storm-relative helicity: 193 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

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
May 8, 8:30 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Brown, Callahan, Clay, Coleman and 22 more	60 min
May 8, 11:14 PM CDT	Mesoscale Discussion	SPC	Clay, Collin, Cooke, Denton, Eastland, Fannin and 9 more	91 min
May 9, 2:52 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Haskell, Jack, Montague and 6 more	113 min
May 9, 3:35 PM CDT	Tornado Watch	SPC	Archer, Baylor, Clay, Haskell, Jack, Knox and 6 more	5 hr
May 9, 4:58 PM CDT	Mesoscale Discussion	SPC	Callahan, Coke, Concho, Crockett, Fisher, Glasscock and 11 more	32 min
May 9, 5:30 PM CDT	Severe Thunderstorm Watch	SPC	Callahan, Coke, Crockett, Fisher, Irion, Jones and 10 more	6 hr
May 9, 5:36 PM CDT	Mesoscale Discussion	SPC	Archer, Baylor, Clay, Haskell, Jack, Knox and 7 more	84 min

Nearby

Mesoscale Discussions in Texas, 2003 Every mesoscale discussion in 2003

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.