Alert archive / Louisiana / Red Flag Warnings in 2023

Red Flag Warning 3, NWS Shreveport, LA

August 30, 202314 counties in Texas; 17 parishes in Louisiana

NWS Shreveport, LA issued this red flag warning at Aug 30, 2023, 2:24 PM CDT for 14 counties in Texas; 17 parishes in Louisiana. It took effect at Aug 31, 2023, 10:00 AM CDT. It was in force for 10 hr. 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 30, 2023, 2:24 PM CDT (19:24 UTC)
In effect from: Aug 31, 2023, 10:00 AM CDT
Expired: Aug 31, 2023, 8:00 PM CDT
In force: 10 hr
Issued by: NWS Shreveport, LA

All 31 counties

Bienville Parish, LA, Bossier Parish, LA, Caddo Parish, LA, Caldwell Parish, LA, Claiborne Parish, LA, De Soto Parish, LA, Grant Parish, LA, Jackson Parish, LA, LaSalle Parish, LA, Lincoln Parish, LA, Natchitoches Parish, LA, Ouachita Parish, LA, Red River Parish, LA, Sabine Parish, LA, Union Parish, LA, Webster Parish, LA, Winn Parish, LA, Angelina County, TX, Cherokee County, TX, Gregg County, TX, Harrison County, TX, Marion County, TX, Nacogdoches County, TX, Panola County, TX, Rusk County, TX, Sabine County, TX, San Augustine County, TX, Shelby County, TX, Smith County, TX, Upshur County, TX, Wood County, TX

The radar

The Shreveport radar (KSHV), 34 km from the middle of the area, began a volume at 19:28 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

Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.4 hours before the alert went out and 233 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1411 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: -31 m²/s²
0-3 km storm-relative helicity: -15 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this red flag warning went out at Aug 30, 12:51 PM CDT, 1 hour 33 minutes earlier.

Area forecast discussion, Aug 30, 12:51 PM CDT, 1 hour 33 minutes before

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Hazardous weather outlook, Aug 30, 4:45 AM CDT, 9 hours 39 minutes before

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Nearby

Red Flag Warnings in Louisiana, 2023 Red Flag Warnings in Texas, 2023 Every red flag 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.