Alert archive / Louisiana / Flash Flood Warnings in 2021
Flash Flood Warning 55, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Sep 14, 2021, 5:30 PM CDT for Calcasieu Parish, Louisiana. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Sep 14, 2021, 5:30 PM CDT (22:30 UTC)
- Expired
- Sep 14, 2021, 9:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
County Calcasieu Parish, LA
The radar
The Lake Charles radar (KLCH), 10 km from the middle of the area, began a volume at 22:31 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, 10.5 hours before the alert went out and 11 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.
- Mixed-layer CAPE
- 63 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 701 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 218 m²/s²
- 0-3 km storm-relative helicity
- 192 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
685
WGUS54 KLCH 142230
FFWLCH
LAC019-150200-
/O.NEW.KLCH.FF.W.0055.210914T2230Z-210915T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
530 PM CDT Tue Sep 14 2021
The National Weather Service in Lake Charles has issued a
* Flash Flood Warning for...
Central Calcasieu Parish in southwestern Louisiana...
* Until 900 PM CDT.
* At 530 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 5 inches of rain
have fallen. Additional rainfall amounts of 1 to 3 inches are
possible in the warned area. Flash flooding is ongoing or expected
to begin shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Radar.
IMPACT...Flash flooding of small creeks and streams, urban
areas, highways, streets and underpasses as well as
other poor drainage and low-lying areas.
* Some locations that will experience flash flooding include...
Lake Charles, Sulphur, Westlake, Moss Bluff, Lake Charles Regional
Airport, Carlyss, Gillis, Buhler, Holmwood and Hackberry.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3040 9349 3038 9313 3004 9300 3006 9313
3006 9329 3005 9336
FLASH FLOOD...RADAR INDICATED
$$
871 follow-up statement
328
WGUS74 KLCH 150158
FFSLCH
Flash Flood Statement
National Weather Service Lake Charles LA
858 PM CDT Tue Sep 14 2021
LAC019-150208-
/O.EXP.KLCH.FF.W.0055.000000T0000Z-210915T0200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Calcasieu LA-
858 PM CDT Tue Sep 14 2021
...FLASH FLOOD WARNING WILL EXPIRE AT 9 PM CDT THIS EVENING FOR
CENTRAL CALCASIEU PARISH...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 600 PM CDT Wednesday for
portions of Louisiana and southeast Texas.
LAT...LON 3040 9349 3038 9313 3004 9300 3006 9313
3006 9329 3005 9336
$$
87The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 14, 1:32 AM CDT | Tornado Warning | LCH | Cameron | 28 min |
| Sep 14, 8:19 AM CDT | River Flood Watch | LCH | Beauregard | 25 hr |
| Sep 14, 8:28 AM CDT | River Flood Watch | LCH | Allen | 24 hr |
| Sep 14, 8:28 AM CDT | River Flood Warning | LCH | Rapides | 5 days |
| Sep 14, 8:28 AM CDT | River Flood Warning | LCH | Allen, Beauregard | 5 days |
| Sep 14, 10:25 AM CDT | Flash Flood Warning | LCH | Acadia, Iberia, Jefferson Davis, Lafayette, Saint Landry, Saint Martin and 1 more | 3 hr |
| Sep 14, 3:46 PM CDT | Flash Flood Warning | LCH | Calcasieu, Cameron | 3 hr |
Nearby
Flash Flood Warnings in Louisiana, 2021Every flash flood warning in 2021
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.