Alert archive / Louisiana / Mesoscale Discussions in 2006

Mesoscale Discussion 2199

November 14, 200620 parishes in Louisiana; Amite County, Pike County, Wilkinson County, Mississippi

The Storm Prediction Center issued this mesoscale discussion at Nov 14, 2006, 5:49 PM CST for 20 parishes in Louisiana; Amite County, Pike County, Wilkinson County, Mississippi. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: Nov 14, 2006, 5:49 PM CST (23:49 UTC)
Expired: Nov 14, 2006, 6:45 PM CST
In force: 56 min
Issued by: the Storm Prediction Center

All 23 counties

Acadia Parish, LA, Ascension Parish, LA, Assumption Parish, LA, Avoyelles Parish, LA, East Baton Rouge Parish, LA, East Feliciana Parish, LA, Evangeline Parish, LA, Iberville Parish, LA, Lafayette Parish, LA, Livingston Parish, LA, Pointe Coupee Parish, LA, Saint Charles Parish, LA, Saint Helena Parish, LA, Saint James Parish, LA, Saint John the Baptist Parish, LA, Saint Landry Parish, LA, Saint Martin Parish, LA, Tangipahoa Parish, LA, West Baton Rouge Parish, LA, West Feliciana Parish, LA, Amite County, MS, Pike County, MS, Wilkinson County, MS

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.8 hours before the alert went out and 154 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: 1214 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 35 m²/s²
0-3 km storm-relative helicity: -144 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
Nov 14, 11:16 AM CST	Mesoscale Discussion	SPC	Acadia, Allen, Beauregard, Calcasieu, Cameron, Evangeline and 4 more	89 min
Nov 14, 12:34 PM CST	Tornado Watch	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 27 more	6 hr
Nov 14, 2:40 PM CST	Mesoscale Discussion	SPC	Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard and 24 more	95 min

Nearby

Mesoscale Discussions in Louisiana, 2006 Mesoscale Discussions in Mississippi, 2006 Every mesoscale discussion in 2006

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.