Alert archive / Louisiana / Flash Flood Warnings in 2023

Flash Flood Warning 13, NWS Shreveport, LA

January 8, 2023Winn Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Jan 8, 2023, 2:19 AM CST for Winn Parish, Louisiana. It was in force for 3 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: Jan 8, 2023, 2:19 AM CST (08:19 UTC)
Expired: Jan 8, 2023, 5:30 AM CST
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Storm-based polygon
Flood severity: None

County Winn Parish, LA

The radar

The Ft Polk radar (KPOE), 93 km from the middle of the area, began a volume at 08:22 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 00:00Z, 8.3 hours before the alert went out and 210 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: 549 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 724 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 38 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Jan 7, 11:37 PM CST, 2 hours 42 minutes earlier.

Area forecast discussion, Jan 7, 11:37 PM CST, 2 hours 42 minutes before

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Hazardous weather outlook, Jan 7, 5:20 AM CST, 20 hours 59 minutes before

Hazardous Weather Outlook
National Weather Service Shreveport LA
520 AM CST Sat Jan 7 2023

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-081130-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-Grant-
Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-Morris-Cass-
Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-Panola-
Nacogdoches-Shelby-Angelina-San Augustine-
520 AM CST Sat Jan 7 2023

This Hazardous Weather Outlook is for south central Arkansas,
southwest Arkansas, north central Louisiana, northwest Louisiana,
southeast Oklahoma, east Texas and northeast Texas.

.DAY ONE...Today and tonight.

Scattered showers and a few thunderstorms will develop across
portions of the area today, becoming more widespread by this
afternoon and into the overnight and early Sunday morning. The best
chances will be for areas southeast of I-30. Severe thunderstorms are
not anticipated at this time, although, we could see between one and
two inches of rainfall.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

No severe weather is anticipated at this time through Friday,
however, we are watching for the potential for some stronger
thunderstorms towards the middle of next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jan 8, 12:10 AM CST, 2 hours 9 minutes before

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Local storm report, Jan 8, 12:22 AM CST, 1 hour 57 minutes before

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Local storm report, Jan 8, 12:25 AM CST, 1 hour 54 minutes before

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Local storm report, Jan 8, 12:26 AM CST, 1 hour 53 minutes before

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Special weather statement, Jan 8, 12:50 AM CST, 1 hour 29 minutes before

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Special weather statement, Jan 8, 1:51 AM CST, 28 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 7, 8:02 PM CST	Special Weather Statement	SHV	Panola	58 min
Jan 7, 8:12 PM CST	Severe Thunderstorm Warning	SHV	Panola, Rusk	48 min
Jan 7, 11:15 PM CST	Severe Thunderstorm Warning	SHV	Sabine, Shelby	45 min
Jan 8, 2:32 AM CST	Special Weather Statement	SHV	Shelby	43 min
Jan 7, 8:59 PM CST	Special Weather Statement	SHV	Ouachita	61 min
Jan 7, 9:38 PM CST	Special Weather Statement	SHV	De Soto, Red River	37 min
Jan 7, 10:00 PM CST	Severe Thunderstorm Warning	SHV	Bienville, De Soto, Natchitoches, Red River	45 min
Jan 7, 10:12 PM CST	Special Weather Statement	SHV	Sabine	63 min
Jan 7, 10:54 PM CST	Severe Thunderstorm Warning	SHV	Natchitoches, Winn	66 min
Jan 7, 11:57 PM CST	Severe Thunderstorm Warning	SHV	De Soto, Natchitoches, Red River, Sabine	48 min
Jan 8, 12:50 AM CST	Special Weather Statement	SHV	Ouachita	10 min
Jan 8, 1:51 AM CST	Special Weather Statement	SHV	LaSalle	39 min

Nearby

Flash Flood Warnings in Louisiana, 2023 Every flash flood 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.