Alert archive / Louisiana / Flash Flood Warnings in 2022

Flash Flood Warning 47, NWS Lake Charles, LA

December 11, 20224 parishes in Louisiana

NWS Lake Charles, LA issued this flash flood warning at Dec 11, 2022, 5:35 AM CST for 4 parishes in Louisiana. It was in force for 55 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
Dec 11, 2022, 5:35 AM CST (11:35 UTC)
Expired
Dec 11, 2022, 6:30 AM CST
In force
55 min
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Allen Parish, LA, Evangeline Parish, LA, Jefferson Davis Parish, LA, Saint Landry Parish, LA

The radar

The Ft Polk radar (KPOE), 79 km from the middle of the area, began a volume at 11:37 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, 11.6 hours before the alert went out and 82 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, Lake Charles Mun, LA at 00:00Z on 2022-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 354 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, Lake Charles Mun, LA at 00:00Z on 2022-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 42 square meters per square second.19395878Sfc1 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
354 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
42 m²/s²
0-3 km storm-relative helicity
66 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.1

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 Lake Charles, LA wrote its last area forecast discussion before this flash flood warning went out at Dec 11, 4:02 AM CST, 1 hour 33 minutes earlier.

Area forecast discussion, Dec 11, 4:02 AM CST, 1 hour 33 minutes before
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Hazardous weather outlook, Dec 11, 4:36 AM CST, 59 minutes before
Hazardous Weather Outlook
National Weather Service Lake Charles LA
436 AM CST Sun Dec 11 2022

LAZ027>033-041>045-052>055-073-074-TXZ180-201-215-216-259>262-121045-
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Calcasieu-Jefferson Davis-Acadia-Lafayette-Upper St. Martin-
Vermilion-Iberia-St. Mary-Lower St. Martin-West Cameron-East Cameron-
Tyler-Hardin-Jefferson-Orange-Northern Jasper-Northern Newton-
Southern Jasper-Southern Newton-
436 AM CST Sun Dec 11 2022

This Hazardous Weather Outlook is for central Louisiana, south
central Louisiana, southwest Louisiana, west central Louisiana and
southeast Texas.

.DAY ONE...Today and tonight.

Showers and subsevere thunderstorms are moving east across the area
as a result of a cold front. Most of this activity is occurring
north of the I-10 corridor. There is a Marginal Risk for excessive
rainfall with a few current Flash Flood Warnings in effect. Showers
afterwards are expected to taper going into this afternoon.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

A strong storm system aloft with an associated surface cold front
will lead to widespread showers and thunderstorms from Tuesday into
Wednesday. At this time, there is a chance that a few of the storms
could be severe with all modes of severe weather possible. Heavy
rains leading to localized flooding will also be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ435-455-470-472-475-121045-
Vermilion Bay-
Coastal waters from Lower Atchafalaya River to Intracoastal City LA
out 20 NM-
Coastal waters from Cameron LA to High Island TX from 20 to 60 NM-
Coastal waters from Intracoastal City to Cameron LA from 20 to 60 NM-
Coastal waters from Lower Atchafalaya River to Intracoastal City LA
from 20 to 60 NM-
436 AM CST Sun Dec 11 2022

This Hazardous Weather Outlook is for the Gulf of Mexico and the
coastal lakes and bays of the Gulf of Mexico.

.DAY ONE...Today and tonight.

Scattered showers and storms are moving east across the Gulf of
Mexico currently, with tapering expected going throughout the day.
Stronger storms will be capable of producing gusty winds and heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Periods of fog will be possible through early next week, mainly from
evening to late morning. By Tuesday into Wednesday, an approaching
strong storm system aloft with an associated surface cold front will
lead to widespread showers and thunderstorms. At this time, there is
a chance that a few of the storms could be severe with all modes of
severe weather possible. Heavy rains will also be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GMZ430-432-450-452-121045-
Sabine Lake-Calcasieu Lake-
Coastal waters from Cameron LA to High Island TX out 20 NM-
Coastal waters from Intracoastal City to Cameron LA out 20 NM-
436 AM CST Sun Dec 11 2022

...DENSE FOG ADVISORY IN EFFECT UNTIL 10 AM CST THIS MORNING...

This Hazardous Weather Outlook is for the Gulf of Mexico and the
coastal lakes and bays of the Gulf of Mexico.

.DAY ONE...Today and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Dense Fog Advisory.

Scattered showers and storms are moving east across the Gulf of
Mexico currently, with tapering expected going throughout the day.
Stronger storms will be capable of producing gusty winds and heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Periods of fog will be possible through early next week, mainly from
evening to late morning. By Tuesday into Wednesday, an approaching
strong storm system aloft with an associated surface cold front will
lead to widespread showers and thunderstorms. At this time, there is
a chance that a few of the storms could be severe with all modes of
severe weather possible. Heavy rains will also be possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Dec 11, 3:15 AM CST, 2 hours 20 minutes before
Special Weather Statement
National Weather Service Lake Charles LA
315 AM CST Sun Dec 11 2022

LAZ033-045-110945-
St. Landry LA-Upper St. Martin LA-
315 AM CST Sun Dec 11 2022

...Strong thunderstorms will impact portions of north central St.
Martin and northeastern St. Landry Parishes through 345 AM CST...

At 315 AM CST, Doppler radar was tracking strong thunderstorms along
a line extending from near Melville to near Port Barre. Movement was
east at 45 mph.

HAZARD...Wind gusts of 50 to 55 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Krotz Springs, Leonville, Melville, Palmetto and Port Barre.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3044 9204 3075 9192 3078 9177 3076 9175
      3074 9176 3070 9173 3067 9173 3066 9175
      3063 9174 3061 9176 3056 9176 3051 9173
      3051 9175 3050 9176 3050 9170 3044 9164
TIME...MOT...LOC 0915Z 260DEG 38KT 3071 9178 3051 9193

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...55 MPH

Stigger/87

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 10, 8:30 PM CSTMarine Dense Fog AdvisoryLCH14 hr
Dec 10, 10:19 PM CSTSpecial Weather StatementLCHCalcasieu41 min
Dec 10, 11:17 PM CSTSpecial Weather StatementLCHVernon58 min
Dec 10, 11:25 PM CSTSpecial Weather StatementLCHJefferson Davis65 min
Dec 11, 1:49 AM CSTFlash Flood WarningLCHAcadia, Evangeline, Saint Landry3 hr
Dec 11, 2:08 AM CSTSevere Thunderstorm WarningLCHEvangeline, Saint Landry23 min
Dec 11, 2:40 AM CSTFlash Flood WarningLCHAvoyelles, Saint Landry2 hr
Dec 11, 2:49 AM CSTSevere Thunderstorm Warning Considerable damage threatLCHSaint Landry26 min
Dec 11, 3:15 AM CSTSpecial Weather StatementLCHSaint Landry30 min
Dec 11, 4:26 AM CSTFlash Flood WarningLCHAcadia, Jefferson Davis, Saint Landry2 hr
Dec 11, 5:44 AM CSTSpecial Weather StatementLCHCalcasieu, Cameron31 min
Dec 11, 5:59 AM CSTSpecial Marine WarningLCH24 min
Dec 11, 6:12 AM CSTSpecial Weather StatementLCHJefferson Davis33 min
Dec 11, 6:28 AM CSTFlash Flood WarningLCHAcadia, Allen, Evangeline, Jefferson Davis, Saint Landry3 hr
Dec 11, 9:51 AM CSTRiver Flood WarningLCHAcadia, Evangeline, Saint Landry7 days
Dec 11, 9:51 AM CSTRiver Flood WarningLCHCalcasieu21 days
Dec 11, 9:51 AM CSTRiver Flood WarningLCHCalcasieu6 days
Dec 10, 8:30 PM CSTSpecial Weather StatementLCHTyler30 min
Dec 10, 8:57 PM CSTFlash Flood WarningLCHJasper, Tyler3 hr
Dec 10, 9:33 PM CSTSpecial Weather StatementLCHTyler42 min
Dec 10, 10:50 PM CSTFlash Flood WarningLCHJasper, Newton, Tyler3 hr
Dec 10, 10:57 PM CSTSpecial Weather StatementLCHJasper, Newton33 min

Nearby

Flash Flood Warnings in Louisiana, 2022Every flash flood warning in 2022

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.