Alert archive / Louisiana / Special Weather Statements in 2021

Special Weather Statement, NWS New Orleans, LA

June 2, 2021Washington Parish, Louisiana; Walthall County, Mississippi

NWS New Orleans, LA issued this special weather statement at Jun 2, 2021, 7:01 PM CDT for Washington Parish, Louisiana; Walthall County, Mississippi. It was in force for 74 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 2, 2021, 7:01 PM CDT (00:01 UTC)
Expired: Jun 2, 2021, 8:15 PM CDT
In force: 74 min
Issued by: NWS New Orleans, LA

Counties Washington Parish, LA, Walthall County, MS

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 00:00Z, 0.0 hours before the alert went out and 320 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: 2140 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 849 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

Open this sounding in Storm Lab

The text

As transmitted.

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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 2, 9:23 PM CDT	Areal Flood Advisory	LIX	Tangipahoa	41 min
Jun 2, 10:04 PM CDT	Flash Flood Warning	LIX	Tangipahoa	2 hr
Jun 3, 4:38 PM CDT	Areal Flood Advisory	LIX	Saint Tammany, Tangipahoa	35 min
Jun 3, 4:45 PM CDT	Areal Flood Advisory	LIX	Assumption, Lafourche, Saint James, Saint John the Baptist	104 min
Jun 3, 12:35 AM CDT	Areal Flood Advisory	LIX	Harrison	100 min
Jun 3, 1:35 AM CDT	Areal Flood Advisory	LIX	Jackson	90 min

Nearby

Special Weather Statements in Louisiana, 2021 Special Weather Statements in Mississippi, 2021 Every special weather statement in 2021

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.