Alert archive / Louisiana / Severe Thunderstorm Warnings in 2013

Severe Thunderstorm Warning 102, NWS New Orleans, LA

June 8, 2013East Baton Rouge Parish, East Feliciana Parish, Saint Helena Parish, Louisiana

NWS New Orleans, LA issued this severe thunderstorm warning at Jun 8, 2013, 6:22 PM CDT for East Baton Rouge Parish, East Feliciana Parish, Saint Helena Parish, Louisiana. It was in force for 53 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: Jun 8, 2013, 6:22 PM CDT (23:22 UTC)
Expired: Jun 8, 2013, 7:15 PM CDT
In force: 53 min
Issued by: NWS New Orleans, LA
Area: Storm-based polygon

Counties East Baton Rouge Parish, LA, East Feliciana Parish, LA, Saint Helena Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 11.4 hours before the alert went out and 131 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: 963 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 801 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 66 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

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 Jun 8, 3:11 PM CDT, 3 hours 11 minutes earlier.

Area forecast discussion, Jun 8, 3:11 PM CDT, 3 hours 11 minutes before

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Hazardous weather outlook, Jun 8, 4:44 AM CDT, 13 hours 38 minutes before

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In the hours before

Special weather statement, Jun 8, 4:12 PM CDT, 2 hours 10 minutes before

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Special weather statement, Jun 8, 4:27 PM CDT, 1 hour 55 minutes before

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Special weather statement, Jun 8, 5:32 PM CDT, 50 minutes before

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Special weather statement, Jun 8, 5:44 PM CDT, 38 minutes before

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Special weather statement, Jun 8, 6:06 PM CDT, 16 minutes before

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Special weather statement, Jun 8, 6:18 PM CDT, 4 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
Jun 8, 3:33 PM CDT	Special Marine Warning	LIX		42 min
Jun 8, 4:31 PM CDT	Severe Thunderstorm Warning	LIX	Pointe Coupee	59 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2013 Every severe thunderstorm warning in 2013

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.