Alert archive / Mississippi / Mesoscale Discussions in 2005

Mesoscale Discussion 1602

July 2, 200511 parishes in Louisiana; 19 counties in Mississippi

The Storm Prediction Center issued this mesoscale discussion at Jul 2, 2005, 6:54 PM CDT for 11 parishes in Louisiana; 19 counties in Mississippi. It was in force for 96 min.

The area

The outline as issued.

The facts

Issued: Jul 2, 2005, 6:54 PM CDT (23:54 UTC)
Expired: Jul 2, 2005, 8:30 PM CDT
In force: 96 min
Issued by: the Storm Prediction Center

All 30 counties

Ascension Parish, LA, Livingston Parish, LA, Orleans Parish, LA, Saint Bernard Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Tammany Parish, LA, Tangipahoa Parish, LA, Washington Parish, LA, Covington County, MS, Forrest County, MS, George County, MS, Greene County, MS, Hancock County, MS, Harrison County, MS, Jackson County, MS, Jefferson Davis County, MS, Jones County, MS, Lamar County, MS, Lawrence County, MS, Lincoln County, MS, Marion County, MS, Pearl River County, MS, Perry County, MS, Pike County, MS, Simpson County, MS, Stone County, MS, Walthall County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.9 hours before the alert went out and 27 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: 1551 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 803 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 33 m²/s²
0-3 km storm-relative helicity: 26 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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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 2, 10:06 AM CDT	Mesoscale Discussion	SPC	Bienville, Caddo, Caldwell, De Soto, Grant, Jackson and 7 more	114 min
Jul 2, 11:40 AM CDT	Severe Thunderstorm Watch	SPC	Allen, Beauregard, Caldwell, De Soto, Evangeline, Grant and 7 more	6 hr
Jul 2, 12:58 PM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Avoyelles, Beauregard, Bienville, Caldwell and 13 more	92 min
Jul 2, 2:33 PM CDT	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Avoyelles, Beauregard, Caldwell and 26 more	87 min
Jul 2, 3:00 PM CDT	Severe Thunderstorm Watch	SPC	Ascension, Avoyelles, Catahoula, Concordia, East Baton Rouge, East Feliciana and 14 more	6 hr
Jul 2, 4:44 PM CDT	Mesoscale Discussion	SPC	Allen, Ascension, Avoyelles, Caldwell, Catahoula, Concordia and 20 more	91 min

Nearby

Mesoscale Discussions in Mississippi, 2005 Mesoscale Discussions in Louisiana, 2005 Every mesoscale discussion in 2005

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.