Alert archive / Louisiana / Special Weather Statements in 2016

Special Weather Statement, NWS New Orleans, LA

June 18, 2016Jefferson Parish, Lafourche Parish, Louisiana

NWS New Orleans, LA issued this special weather statement at Jun 18, 2016, 12:01 PM CDT for Jefferson Parish, Lafourche Parish, Louisiana. It was in force for 59 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: Jun 18, 2016, 12:01 PM CDT (17:01 UTC)
Expired: Jun 18, 2016, 1:00 PM CDT
In force: 59 min
Issued by: NWS New Orleans, LA

Counties Jefferson Parish, LA, Lafourche Parish, LA

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 5.0 hours before the alert went out and 284 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: 2313 J/kg
Mixed-layer CIN: -44 J/kg
Mixed-layer LCL: 781 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: -57 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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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 New Orleans, LA wrote its last area forecast discussion before this special weather statement went out at Jun 18, 7:59 AM CDT, 4 hours 2 minutes earlier.

Area forecast discussion, Jun 18, 7:59 AM CDT, 4 hours 2 minutes before

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Hazardous weather outlook, Jun 18, 11:02 AM CDT, 59 minutes before

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In the hours before

Special weather statement, Jun 18, 10:16 AM CDT, 1 hour 45 minutes before

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Special weather statement, Jun 18, 10:20 AM CDT, 1 hour 41 minutes before

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Special weather statement, Jun 18, 10:23 AM CDT, 1 hour 38 minutes before

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Local storm report, Jun 18, 10:48 AM CDT, 1 hour 13 minutes before

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Special weather statement, Jun 18, 11:05 AM CDT, 56 minutes before

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Special weather statement, Jun 18, 12:01 PM CDT, 0 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 17, 7:58 PM CDT	Special Marine Warning	LIX		2 hr
Jun 17, 8:30 PM CDT	Special Weather Statement	LIX	Saint Tammany, Tangipahoa, Washington	60 min
Jun 17, 9:14 PM CDT	Special Marine Warning	LIX		61 min
Jun 17, 9:40 PM CDT	Special Marine Warning	LIX		95 min
Jun 17, 10:10 PM CDT	Special Weather Statement	LIX	Jefferson, Lafourche, Saint Charles, Saint James	65 min
Jun 17, 11:12 PM CDT	Special Marine Warning	LIX		93 min
Jun 18, 5:50 AM CDT	Special Marine Warning	LIX		115 min
Jun 18, 6:49 AM CDT	Areal Flood Advisory	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	3 hr
Jun 18, 7:20 AM CDT	Special Weather Statement	LIX	Plaquemines	55 min
Jun 18, 7:41 AM CDT	Special Marine Warning	LIX		64 min
Jun 18, 7:55 AM CDT	Special Marine Warning	LIX		65 min
Jun 18, 8:15 AM CDT	Special Weather Statement	LIX	Jefferson, Plaquemines	60 min
Jun 18, 8:31 AM CDT	Special Weather Statement	LIX	East Feliciana, Saint Helena	44 min
Jun 18, 9:01 AM CDT	Special Marine Warning	LIX		59 min
Jun 18, 9:15 AM CDT	Special Marine Warning	LIX		45 min
Jun 18, 9:18 AM CDT	Special Weather Statement	LIX	Plaquemines	57 min
Jun 18, 9:22 AM CDT	Special Weather Statement	LIX	East Baton Rouge, East Feliciana, Livingston, Saint Helena, West Baton Rouge	53 min
Jun 18, 9:55 AM CDT	Special Marine Warning	LIX		50 min
Jun 18, 10:16 AM CDT	Special Weather Statement	LIX	Jefferson	44 min
Jun 18, 10:20 AM CDT	Special Weather Statement	LIX	East Baton Rouge	40 min
Jun 18, 11:05 AM CDT	Special Weather Statement	LIX	Pointe Coupee	40 min
Jun 17, 7:25 PM CDT	Severe Thunderstorm Warning	LIX	Harrison, Jackson	35 min
Jun 18, 10:23 AM CDT	Special Weather Statement	LIX	Wilkinson	37 min
Jun 18, 5:49 PM CDT	Special Weather Statement	LIX	Pearl River	56 min

Nearby

Special Weather Statements in Louisiana, 2016 Every special weather statement in 2016

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.