Alert archive / Texas / Flash Flood Warnings in 2021
Flash Flood Warning 29, NWS Lake Charles, LA
NWS Lake Charles, LA issued this flash flood warning at May 19, 2021, 10:00 PM CDT for Jefferson County, Orange County, Texas; Cameron Parish, Louisiana. It was in force for 3 hr. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- May 19, 2021, 10:00 PM CDT (03:00 UTC)
- Expired
- May 20, 2021, 12:46 AM CDT
- In force
- 3 hr
- Issued by
- NWS Lake Charles, LA
- Area
- Storm-based polygon
- Flood severity
- None
Counties Cameron Parish, LA, Jefferson County, TX, Orange County, TX
The radar
The Lake Charles radar (KLCH), 74 km from the middle of the area, began a volume at 03:03 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 19, 11:59 PM CDT | FLOOD | Port Arthur, TX | MINOR STREET FLOODING ON GULFWAY DRIVE AND HOUSTON AVENUE IN PORT ARTHUR, TX. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Lake Charles Mun, LA (KLCH), launched 00:00Z, 3.0 hours before the alert went out and 75 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
- 708 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 30 kt
- 0-1 km storm-relative helicity
- 217 m²/s²
- 0-3 km storm-relative helicity
- 218 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 4.8
The text
As transmitted.
916
WGUS54 KLCH 200300
FFWLCH
LAC023-TXC245-361-200600-
/O.NEW.KLCH.FF.W.0029.210520T0300Z-210520T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
1000 PM CDT Wed May 19 2021
The National Weather Service in Lake Charles has issued a
* Flash Flood Warning for...
West Central Cameron Parish in southwestern Louisiana...
Eastern Jefferson County in southeastern Texas...
Southwestern Orange County in southeastern Texas...
* Until 100 AM CDT.
* At 1000 PM CDT, Doppler radar indicated thunderstorms producing
heavy rain across the warned area. Between 1 and 2 inches of rain
have fallen. Flash flooding is ongoing or expected to begin
shortly.
HAZARD...Flash flooding caused by thunderstorms.
SOURCE...Doppler radar.
IMPACT...Flooding of small creeks and streams, urban areas,
highways, streets and underpasses as well as other
drainage and low lying areas.
* Some locations that will experience flash flooding include...
Beaumont, Port Arthur, Nederland, Groves, Port Neches, Bridge
City, Sabine Pass, Central Gardens, Rose City, Port Acres and
Southeast Texas Regional Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.
&&
LAT...LON 2968 9402 2976 9404 3005 9413 3011 9411
3000 9379 2999 9378 2999 9376 2975 9368
2967 9386
FLASH FLOOD...RADAR INDICATED
$$
Jones1 follow-up statement
230
WGUS74 KLCH 200546
FFSLCH
Flash Flood Statement
National Weather Service Lake Charles LA
1246 AM CDT Thu May 20 2021
LAC023-TXC245-361-200556-
/O.CAN.KLCH.FF.W.0029.000000T0000Z-210520T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron LA-Jefferson TX-Orange TX-
1246 AM CDT Thu May 20 2021
...FLASH FLOOD WARNING IS CANCELLED FOR EASTERN JEFFERSON AND
SOUTHWESTERN ORANGE COUNTIES AND WEST CENTRAL CAMERON PARISH...
The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed remaining road closures.
A Flash Flood Watch remains in effect until 700 PM CDT Thursday for
portions of Louisiana and southeast Texas.
LAT...LON 2968 9402 2976 9404 3005 9413 3011 9411
3000 9379 2999 9378 2999 9376 2975 9368
2967 9386
$$
13The office that day
Everything else NWS Lake Charles, LA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 3:55 AM CDT | Coastal Flood Advisory | LCH | 18 hr | |
| May 20, 9:27 AM CDT | River Flood Warning | LCH | Orange | 21 days |
| May 19, 10:27 PM CDT | Special Marine Warning | LCH | 33 min | |
| May 19, 10:29 PM CDT | Special Marine Warning | LCH | 31 min | |
| May 19, 10:54 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron, Jefferson Davis | 36 min |
| May 19, 10:56 PM CDT | Special Marine Warning | LCH | 34 min | |
| May 19, 11:29 PM CDT | Severe Thunderstorm Warning | LCH | Calcasieu, Cameron, Jefferson Davis | 17 min |
| May 20, 4:04 PM CDT | Flash Flood Warning | LCH | Acadia, Allen, Jefferson Davis, Vermilion | 5 hr |
| May 20, 5:16 PM CDT | Flash Flood Warning | LCH | Beauregard, Calcasieu, Cameron, Jefferson Davis | 3 hr |
Nearby
Flash Flood Warnings in Texas, 2021Flash 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.