Alert archive / Louisiana / Special Weather Statements in 2012

Special Weather Statement, NWS Lake Charles, LA

May 30, 2012Avoyelles Parish, Louisiana

NWS Lake Charles, LA issued this special weather statement at May 30, 2012, 8:44 PM CDT for Avoyelles Parish, Louisiana. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 30, 2012, 8:44 PM CDT (01:44 UTC)
Expired: May 30, 2012, 9:45 PM CDT
In force: 61 min
Issued by: NWS Lake Charles, LA

County Avoyelles Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 00:00Z, 1.7 hours before the alert went out and 218 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: 892 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 1643 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: 35 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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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Lake Charles, LA wrote its last area forecast discussion before this special weather statement went out at May 30, 5:40 PM CDT, 3 hours 4 minutes earlier.

Area forecast discussion, May 30, 5:40 PM CDT, 3 hours 4 minutes before

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Hazardous weather outlook, May 30, 5:02 AM CDT, 15 hours 42 minutes before

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In the hours before

Special weather statement, May 30, 8:44 PM CDT, 0 minutes before

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The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 31, 10:17 AM CDT	Special Weather Statement	LCH	Beauregard, Vernon	58 min
May 31, 10:49 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard	41 min
May 31, 11:23 AM CDT	Severe Thunderstorm Warning	LCH	Beauregard, Calcasieu	32 min
May 31, 11:34 AM CDT	Severe Thunderstorm Warning	LCH	Rapides, Vernon	56 min
May 31, 12:02 PM CDT	Severe Thunderstorm Warning	LCH	Allen, Evangeline, Rapides	58 min
May 31, 12:48 PM CDT	Severe Thunderstorm Warning	LCH	Evangeline, Saint Landry	57 min
May 31, 12:58 PM CDT	Severe Thunderstorm Warning	LCH	Avoyelles, Evangeline, Saint Landry	62 min
May 31, 1:15 PM CDT	Special Weather Statement	LCH	Lafayette	60 min
May 31, 1:42 PM CDT	Special Weather Statement	LCH	Saint Martin	63 min

Nearby

Special Weather Statements in Louisiana, 2012 Every special weather statement in 2012

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.