Alert archive / Louisiana / Flash Flood Warnings in 2021
Flash Flood Warning 65, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at Sep 30, 2021, 9:08 AM CDT for 4 parishes in 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 outline as issued.
The facts
- Issued
- Sep 30, 2021, 9:08 AM CDT (14:08 UTC)
- Expired
- Sep 30, 2021, 12:15 PM CDT
- In force
- 3 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Allen Parish, LA, Avoyelles Parish, LA, Evangeline Parish, LA, Rapides Parish, LA
The radar
The Ft Polk radar (KPOE), 73 km from the middle of the area, began a volume at 14:07 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, 2.1 hours before the alert went out and 149 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
- 1518 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 633 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 67 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 0.8
The text
As transmitted.
243
WGUS54 KLCH 301408
FFWLCH
LAC003-009-039-079-301715-
/O.NEW.KLCH.FF.W.0065.210930T1408Z-210930T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
908 AM CDT Thu Sep 30 2021
The National Weather Service in Lake Charles has issued a
* Flash Flood Warning for...
Northwestern Avoyelles Parish in central Louisiana...
Central Evangeline Parish in central Louisiana...
Southeastern Rapides Parish in central Louisiana...
Northeastern Allen Parish in southwestern Louisiana...
* Until 1215 PM CDT.
* At 908 AM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 2 and 4 inches of rain
have fallen. Additional rainfall amounts of 2 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...
Oakdale, Marksville, Bunkie, Glenmora, Cheneyville, Turkey Creek,
Effie, Pine Prairie, Lecompte, Hessmer, Echo, Bayou Chicot,
Poland, Ruby, Centerpoint, Beaver, Reddell, Bond, Brouillette and
Deville.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 3137 9223 3139 9214 3136 9208 3134 9207
3134 9209 3132 9208 3134 9204 3130 9202
3128 9202 3127 9199 3126 9200 3125 9199
3124 9200 3116 9200 3088 9225 3067 9239
3062 9249 3075 9277 3083 9274 3082 9274
FLASH FLOOD...RADAR INDICATED
$$
K. KuyperThe office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 29, 7:37 PM CDT | River Flood Warning | LCH | Beauregard, Calcasieu | 4 days |
| Sep 30, 12:53 PM CDT | Flash Flood Warning | LCH | Acadia, Calcasieu, Cameron, Jefferson Davis | 3 hr |
| Sep 30, 1:14 PM CDT | Special Weather Statement | LCH | Vermilion | 31 min |
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.