Alert archive / Louisiana / Special Weather Statements in 2018

Special Weather Statement, NWS Lake Charles, LA

August 2, 2018Vermilion Parish, Louisiana

NWS Lake Charles, LA issued this special weather statement at Aug 2, 2018, 8:45 PM CDT for Vermilion Parish, Louisiana. It was in force for 30 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 2, 2018, 8:45 PM CDT (01:45 UTC)
Expired: Aug 2, 2018, 9:15 PM CDT
In force: 30 min
Issued by: NWS Lake Charles, LA

County Vermilion Parish, LA

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 1.8 hours before the alert went out and 334 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: 1007 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 1672 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -14 m²/s²
0-3 km storm-relative helicity: -25 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 Lake Charles, LA wrote its last area forecast discussion before this special weather statement went out at Aug 2, 3:57 PM CDT, 4 hours 48 minutes earlier.

Area forecast discussion, Aug 2, 3:57 PM CDT, 4 hours 48 minutes before

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Hazardous weather outlook, Aug 2, 3:31 PM CDT, 5 hours 14 minutes before

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In the hours before

Special weather statement, Aug 2, 8:45 PM CDT, 0 minutes before

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The office that day

Everything else NWS Lake Charles, LA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 2, 9:15 PM CDT	Special Weather Statement	LCH	Vermilion	30 min
Aug 3, 2:56 PM CDT	Special Weather Statement	LCH	Saint Martin	49 min
Aug 3, 3:30 PM CDT	Special Weather Statement	LCH	Lafayette	45 min
Aug 3, 4:10 PM CDT	Special Weather Statement	LCH	Saint Martin	35 min
Aug 3, 4:52 PM CDT	Special Weather Statement	LCH	Acadia	23 min
Aug 3, 5:11 PM CDT	Special Weather Statement	LCH	Vermilion	34 min
Aug 3, 5:17 PM CDT	Special Weather Statement	LCH	Acadia	28 min
Aug 3, 6:08 PM CDT	Special Weather Statement	LCH	Evangeline	37 min
Aug 3, 6:56 PM CDT	Special Weather Statement	LCH	Rapides	34 min

Nearby

Special Weather Statements in Louisiana, 2018 Every special weather statement in 2018

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.