Alert archive / Louisiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 4, NWS Lake Charles, LA

January 3, 2023Avoyelles Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Jan 3, 2023, 6:11 PM CST for Avoyelles Parish, Louisiana. It was in force for 34 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jan 3, 2023, 6:11 PM CST (00:11 UTC)
Expired: Jan 3, 2023, 6:45 PM CST
In force: 34 min
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Avoyelles Parish, LA

The radar

The Ft Polk radar (KPOE), 93 km from the middle of the area, began a volume at 00:11 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Jackson, MS (KJAN), launched 00:00Z, 0.2 hours before the alert went out and 228 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: 1753 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 666 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 135 m²/s²
0-3 km storm-relative helicity: 273 m²/s²
Significant tornado parameter: 2.8
Supercell composite: 9.0

Open this sounding in Storm Lab

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 3, 6:01 PM CST	Special Weather Statement	LCH	Avoyelles	44 min
Jan 3, 6:17 PM CST	Severe Thunderstorm Warning	LCH	Lafayette, Saint Martin	22 min
Jan 3, 6:28 PM CST	Special Weather Statement	LCH	Saint Martin	32 min
Jan 3, 7:18 PM CST	Special Weather Statement	LCH	Avoyelles	42 min
Jan 3, 7:57 PM CST	Special Weather Statement	LCH	Avoyelles	18 min
Jan 3, 10:38 PM CST	Special Weather Statement	LCH	Assumption	37 min
Jan 3, 11:07 PM CST	Special Marine Warning	LCH		53 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2023 Every severe thunderstorm warning in 2023

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; radar from the NEXRAD Level II archive.