Alert archive / Louisiana / Severe Thunderstorm Warnings in 2006

Severe Thunderstorm Warning 137, NWS New Orleans, LA

August 16, 2006Ascension Parish, Iberville Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Aug 16, 2006, 3:00 PM CDT for Ascension Parish, Iberville Parish, Louisiana. It was in force for 45 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 16, 2006, 3:00 PM CDT (20:00 UTC)
Expired: Aug 16, 2006, 3:45 PM CDT
In force: 45 min
Issued by: NWS New Orleans, LA
Area: Counties, with a storm outline in the text

Counties Ascension Parish, LA, Iberville Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 8.0 hours before the alert went out and 199 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: 2486 J/kg
Mixed-layer CIN: -91 J/kg
Mixed-layer LCL: 961 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: -47 m²/s²
0-3 km storm-relative helicity: -43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

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

NWS New Orleans, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 16, 4:04 AM CDT, 10 hours 56 minutes earlier.

Area forecast discussion, Aug 16, 4:04 AM CDT, 10 hours 56 minutes before

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Hazardous weather outlook, Aug 16, 11:25 AM CDT, 3 hours 35 minutes before

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In the hours before

Special weather statement, Aug 16, 2:35 PM CDT, 25 minutes before

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The office that day

Everything else NWS New Orleans, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 15, 9:51 PM CDT	Special Marine Warning	LIX		84 min
Aug 15, 11:01 PM CDT	Special Marine Warning	LIX		89 min
Aug 16, 12:25 AM CDT	Special Marine Warning	LIX		95 min
Aug 16, 6:09 AM CDT	Special Marine Warning	LIX		96 min
Aug 16, 3:50 PM CDT	Severe Thunderstorm Warning	LIX	Ascension, Assumption	55 min
Aug 16, 4:13 PM CDT	Severe Thunderstorm Warning	LIX	Tangipahoa	32 min
Aug 16, 4:26 PM CDT	Severe Thunderstorm Warning	LIX	Livingston	34 min
Aug 16, 5:02 PM CDT	Special Marine Warning	LIX		43 min
Aug 15, 10:01 PM CDT	Severe Thunderstorm Warning	LIX	Harrison, Jackson	29 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2006 Every severe thunderstorm warning 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.