Alert archive / Louisiana / Special Weather Statements in 2020

Special Weather Statement, NWS New Orleans, LA

June 23, 20205 parishes in Louisiana

NWS New Orleans, LA issued this special weather statement at Jun 23, 2020, 4:29 PM CDT for 5 parishes in Louisiana. It was in force for 46 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 23, 2020, 4:29 PM CDT (21:29 UTC)
Expired: Jun 23, 2020, 5:15 PM CDT
In force: 46 min
Issued by: NWS New Orleans, LA

Counties Assumption Parish, LA, Iberville Parish, LA, Plaquemines Parish, LA, Saint Charles Parish, LA, Saint James Parish, LA

The nearest sounding before it

Slidell Radar S, LA (KSIL), launched 12:00Z, 9.5 hours before the alert went out and 77 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: 2077 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 741 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 46 m²/s²
0-3 km storm-relative helicity: 34 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 23, 4:27 AM CDT, 12 hours 2 minutes earlier.

Area forecast discussion, Jun 23, 4:27 AM CDT, 12 hours 2 minutes before

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In the hours before

Special weather statement, Jun 23, 3:45 PM CDT, 44 minutes before

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Special weather statement, Jun 23, 3:46 PM CDT, 43 minutes before

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Local storm report, Jun 23, 4:17 PM CDT, 12 minutes before

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Special weather statement, Jun 23, 4:18 PM CDT, 11 minutes before

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Special weather statement, Jun 23, 4:20 PM CDT, 9 minutes before

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Special weather statement, Jun 23, 4:29 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 23, 4:27 AM CDT	Small Craft Advisory	LIX		21 hr
Jun 23, 9:41 AM CDT	Special Weather Statement	LIX	Saint Charles	34 min
Jun 23, 10:13 AM CDT	Special Weather Statement	LIX	Orleans, Saint Charles	32 min
Jun 23, 11:03 AM CDT	Special Marine Warning	LIX		27 min
Jun 23, 11:33 AM CDT	Areal Flood Advisory	LIX	Saint Tammany	3 hr
Jun 23, 12:55 PM CDT	Special Marine Warning	LIX		65 min
Jun 23, 1:48 PM CDT	Special Weather Statement	LIX	Assumption	27 min
Jun 23, 1:54 PM CDT	Special Marine Warning	LIX		66 min
Jun 23, 2:48 PM CDT	Special Marine Warning	LIX		57 min
Jun 23, 2:59 PM CDT	Special Weather Statement	LIX	Jefferson, Lafourche, Plaquemines, Terrebonne	76 min
Jun 23, 3:20 PM CDT	Special Marine Warning	LIX		55 min
Jun 23, 3:42 PM CDT	Special Weather Statement	LIX	Iberville, West Baton Rouge	33 min
Jun 23, 3:43 PM CDT	Special Weather Statement	LIX	East Feliciana	32 min
Jun 23, 3:45 PM CDT	Special Weather Statement	LIX	West Feliciana	30 min
Jun 23, 3:46 PM CDT	Special Weather Statement	LIX	Ascension, Assumption, Saint James, Saint John the Baptist	29 min
Jun 23, 4:08 PM CDT	Special Marine Warning	LIX		37 min
Jun 23, 4:20 PM CDT	Special Weather Statement	LIX	Saint James	40 min
Jun 23, 4:37 PM CDT	Special Marine Warning	LIX		53 min
Jun 23, 4:41 PM CDT	Special Weather Statement	LIX	Tangipahoa	34 min
Jun 23, 5:11 PM CDT	Special Weather Statement	LIX	East Baton Rouge, Livingston, Saint John the Baptist, West Baton Rouge	49 min
Jun 23, 5:14 PM CDT	Special Weather Statement	LIX	Saint Tammany, Washington	46 min
Jun 23, 5:30 PM CDT	Special Marine Warning	LIX		30 min
Jun 23, 5:48 PM CDT	Special Weather Statement	LIX	Saint Helena	27 min
Jun 23, 11:08 AM CDT	Special Weather Statement	LIX	Hancock	37 min
Jun 23, 4:18 PM CDT	Special Weather Statement	LIX	Amite, Wilkinson	27 min
Jun 23, 4:47 PM CDT	Special Weather Statement	LIX	Amite	28 min
Jun 23, 6:03 PM CDT	Special Weather Statement	LIX	Walthall	27 min
Jun 23, 6:11 PM CDT	Special Weather Statement	LIX	Pike	34 min
Jun 23, 6:19 PM CDT	Special Weather Statement	LIX	Hancock	56 min

Nearby

Special Weather Statements in Louisiana, 2020 Every special weather statement in 2020

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.