Alert archive / Louisiana / Special Weather Statements in 2015

Special Weather Statement, NWS New Orleans, LA

August 9, 2015Saint Bernard Parish, Louisiana

NWS New Orleans, LA issued this special weather statement at Aug 9, 2015, 4:15 PM CDT for Saint Bernard 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 outline as issued.

The facts

Issued: Aug 9, 2015, 4:15 PM CDT (21:15 UTC)
Expired: Aug 9, 2015, 5:00 PM CDT
In force: 45 min
Issued by: NWS New Orleans, LA

County Saint Bernard Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.3 hours before the alert went out and 56 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: 2792 J/kg
Mixed-layer CIN: -72 J/kg
Mixed-layer LCL: 794 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 12 m²/s²
0-3 km storm-relative helicity: 85 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.9

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 New Orleans, LA wrote its last area forecast discussion before this special weather statement went out at Aug 9, 12:04 PM CDT, 4 hours 11 minutes earlier.

Area forecast discussion, Aug 9, 12:04 PM CDT, 4 hours 11 minutes before

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Hazardous weather outlook, Aug 9, 11:37 AM CDT, 4 hours 38 minutes before

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In the hours before

Local storm report, Aug 9, 1:56 PM CDT, 2 hours 19 minutes before

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Special weather statement, Aug 9, 4:15 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
Aug 8, 9:03 PM CDT	Special Marine Warning	LIX		27 min
Aug 8, 9:12 PM CDT	Special Weather Statement	LIX	Saint Tammany	48 min
Aug 8, 9:14 PM CDT	Special Marine Warning	LIX		61 min
Aug 8, 9:17 PM CDT	Special Marine Warning	LIX		58 min
Aug 8, 9:21 PM CDT	Special Weather Statement	LIX	Orleans	24 min
Aug 8, 9:29 PM CDT	Severe Thunderstorm Warning	LIX	Jefferson, Orleans, Plaquemines, Saint Bernard	61 min
Aug 8, 9:58 PM CDT	Special Marine Warning	LIX		62 min
Aug 8, 10:39 PM CDT	Special Marine Warning	LIX		66 min
Aug 9, 5:18 PM CDT	Special Marine Warning	LIX		27 min
Aug 9, 5:20 PM CDT	Special Weather Statement	LIX	Plaquemines	55 min
Aug 9, 5:22 PM CDT	Special Marine Warning	LIX		53 min
Aug 9, 6:07 PM CDT	Special Marine Warning	LIX		53 min
Aug 8, 7:23 PM CDT	Severe Thunderstorm Warning	LIX	Pike, Walthall	37 min
Aug 8, 8:18 PM CDT	Special Weather Statement	LIX	Harrison	27 min
Aug 8, 8:24 PM CDT	Special Weather Statement	LIX	Pearl River	36 min
Aug 8, 8:31 PM CDT	Severe Thunderstorm Warning	LIX	Pearl River	44 min
Aug 8, 8:50 PM CDT	Severe Thunderstorm Warning	LIX	Hancock, Harrison, Pearl River	40 min

Nearby

Special Weather Statements in Louisiana, 2015 Every special weather statement in 2015

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.