Alert archive / Louisiana / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 79, NWS Lake Charles, LA

August 21, 2026Avoyelles Parish, Rapides Parish, Louisiana

NWS Lake Charles, LA issued this severe thunderstorm warning at Aug 21, 2026, 5:17 PM CDT for Avoyelles Parish, Rapides Parish, Louisiana. It was in force for 43 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
Aug 21, 2026, 5:17 PM CDT (22:17 UTC)
Expired
Aug 21, 2026, 6:00 PM CDT
In force
43 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Avoyelles Parish, LA, Rapides Parish, LA

The radar

The Ft Polk radar (KPOE), 67 km from the middle of the area, began a volume at 22:20 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Aug 21, 3:28 PM CDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Jackson, MS (KJAN), launched 12:00Z, 10.3 hours before the alert went out and 245 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-pSkew-T log-p diagram, Jackson, MS at 12:00Z on 2026-08-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1263 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jackson, MS at 12:00Z on 2026-08-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1263 J/kg
Mixed-layer CIN
-235 J/kg
Mixed-layer LCL
1303 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 21, 11:54 AM CDTHeat AdvisoryLCHAcadia, Allen, Avoyelles, Beauregard, Calcasieu, Cameron and 10 more32 hr
Aug 21, 2:52 PM CDTSpecial Weather StatementLCHVernon23 min
Aug 21, 3:15 PM CDTSpecial Weather StatementLCHVernon30 min
Aug 21, 3:36 PM CDTSpecial Weather StatementLCHVernon24 min
Aug 21, 3:39 PM CDTSpecial Weather StatementLCHAvoyelles36 min
Aug 21, 3:58 PM CDTSpecial Weather StatementLCHVernon32 min
Aug 21, 4:16 PM CDTSpecial Weather StatementLCHAvoyelles29 min
Aug 21, 4:22 PM CDTSevere Thunderstorm WarningLCHAvoyelles, Rapides38 min
Aug 21, 4:34 PM CDTSpecial Weather StatementLCHRapides26 min
Aug 21, 4:47 PM CDTSpecial Weather StatementLCHAvoyelles28 min
Aug 21, 5:58 PM CDTSpecial Weather StatementLCHRapides32 min
Aug 21, 6:02 PM CDTSpecial Weather StatementLCHEvangeline28 min
Aug 21, 6:28 PM CDTSpecial Weather StatementLCHSaint Landry32 min
Aug 21, 6:30 PM CDTSpecial Weather StatementLCHRapides30 min
Aug 21, 6:38 PM CDTSpecial Weather StatementLCHLafayette, Saint Landry, Saint Martin37 min
Aug 21, 6:41 PM CDTSevere Thunderstorm WarningLCHEvangeline, Saint Landry34 min
Aug 21, 6:44 PM CDTSpecial Weather StatementLCHAcadia31 min
Aug 21, 6:57 PM CDTSevere Thunderstorm WarningLCHAcadia48 min

Nearby

Severe Thunderstorm Warnings in Louisiana, 2026Every severe thunderstorm warning in 2026

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.