Alert archive / Louisiana / Special Weather Statements in 2016

Special Weather Statement, NWS New Orleans, LA

November 30, 2016Orleans Parish, Louisiana

NWS New Orleans, LA issued this special weather statement at Nov 30, 2016, 8:36 AM CST for Orleans Parish, Louisiana. It was in force for 39 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: Nov 30, 2016, 8:36 AM CST (14:36 UTC)
Expired: Nov 30, 2016, 9:15 AM CST
In force: 39 min
Issued by: NWS New Orleans, LA

County Orleans Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 2.6 hours before the alert went out and 46 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: 722 J/kg
Mixed-layer CIN: -16 J/kg
Mixed-layer LCL: 734 m above ground
0-6 km bulk shear: 74 kt
0-1 km storm-relative helicity: 339 m²/s²
0-3 km storm-relative helicity: 341 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 11.5

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 Nov 30, 6:40 AM CST, 1 hour 56 minutes earlier.

Area forecast discussion, Nov 30, 6:40 AM CST, 1 hour 56 minutes before

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Hazardous weather outlook, Nov 30, 5:59 AM CST, 2 hours 37 minutes before

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In the hours before

Special weather statement, Nov 30, 3:07 AM CST, 5 hours 29 minutes before

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Special weather statement, Nov 30, 5:02 AM CST, 3 hours 34 minutes before

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Special weather statement, Nov 30, 6:15 AM CST, 2 hours 21 minutes before

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Special weather statement, Nov 30, 8:36 AM CST, 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
Nov 30, 5:02 AM CST	Special Weather Statement	LIX	Saint Helena	43 min
Nov 30, 6:15 AM CST	Special Weather Statement	LIX	Livingston	45 min
Nov 30, 9:31 AM CST	Special Marine Warning	LIX		59 min
Nov 30, 11:02 AM CST	Special Marine Warning	LIX		43 min
Nov 30, 1:14 AM CST	Special Weather Statement	LIX	Wilkinson	46 min
Nov 30, 1:27 AM CST	Severe Thunderstorm Warning	LIX	Wilkinson	33 min
Nov 30, 3:07 AM CST	Special Weather Statement	LIX	Amite	38 min
Nov 30, 10:11 AM CST	Tornado Warning	LIX	Harrison	19 min
Nov 30, 10:45 AM CST	Special Weather Statement	LIX	Jackson	45 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.