Alert archive / Texas / Flash Flood Warnings in 2020

Flash Flood Warning 21, NWS Lake Charles, LA

August 27, 20205 counties in Texas

NWS Lake Charles, LA issued this flash flood warning at Aug 27, 2020, 4:28 AM CDT for 5 counties in Texas. It was in force for 5 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
Aug 27, 2020, 4:28 AM CDT (09:28 UTC)
Expired
Aug 27, 2020, 9:19 AM CDT
In force
5 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Flood severity
None

Counties Hardin County, TX, Jasper County, TX, Newton County, TX, Orange County, TX, Tyler County, TX

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 9.5 hours before the alert went out and 193 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, Shreveport, LA at 00:00Z on 2020-08-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 914 joules per kilogram.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 00:00Z on 2020-08-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 square meters per square second.193958Sfc1 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
914 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
1718 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
46 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

670 
WGUS54 KLCH 270928
FFWLCH
TXC199-241-351-361-457-271230-
/O.NEW.KLCH.FF.W.0021.200827T0928Z-200827T1230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
428 AM CDT Thu Aug 27 2020

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Northeastern Hardin County in southeastern Texas...
  Jasper County in southeastern Texas...
  Western Newton County in southeastern Texas...
  Central Orange County in southeastern Texas...
  Tyler County in southeastern Texas...

* Until 730 AM CDT.

* At 428 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 2 and 4 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...
  Port Arthur, Orange, Lumberton, Vidor, Bridge City, Jasper, 
  Silsbee, Woodville, Kirbyville, Kountze, Colmesneil, Chester, 
  Fred, Town Bluff, Warren, Buna, Call, Wildwood, Evadale and 
  Ebenezer.

Additional rainfall amounts of 4 to 5 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the 
dangers of flooding.

&&

LAT...LON 3103 9447 3111 9406 3114 9403 3116 9384
      2996 9385 2997 9386 3049 9454 3101 9466
      3106 9456

FLASH FLOOD...RADAR INDICATED

$$

TOMASELLI
2 follow-up statements
255 
WGUS54 KLCH 271210
FFWLCH
TXC199-241-351-361-457-271430-
/O.EXT.KLCH.FF.W.0021.000000T0000Z-200827T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
710 AM CDT Thu Aug 27 2020

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Northeastern Hardin County in southeastern Texas...
  Jasper County in southeastern Texas...
  Western Newton County in southeastern Texas...
  Central Orange County in southeastern Texas...
  Tyler County in southeastern Texas...

* Until 930 AM CDT.

* At 710 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 3 and 4 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...
  Port Arthur, Orange, Lumberton, Vidor, Bridge City, Jasper, 
  Silsbee, Woodville, Kirbyville, Kountze, Colmesneil, Chester, 
  Fred, Town Bluff, Warren, Buna, Call, Wildwood, Evadale and 
  Ebenezer.

Additional rainfall amounts of 2 to 3 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Warning means that flooding is imminent or occurring. 
If you are in the warned area move to higher ground immediately. 
Residents living along streams and creeks should take immediate 
precautions to protect life and property.

&&

LAT...LON 3103 9447 3111 9406 3114 9403 3116 9384
      2996 9385 2997 9386 3049 9454 3101 9466
      3106 9456

FLASH FLOOD...RADAR INDICATED

$$

TOMASELLI
321 
WGUS74 KLCH 271419
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
Issued by National Weather Service Brownsville TX
919 AM CDT Thu Aug 27 2020

TXC199-241-351-361-457-271429-
/O.CAN.KLCH.FF.W.0021.000000T0000Z-200827T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Hardin TX-Jasper TX-Newton TX-Orange TX-Tyler TX-
919 AM CDT Thu Aug 27 2020

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN HARDIN, JASPER, 
WESTERN NEWTON, CENTRAL ORANGE AND TYLER COUNTIES...

Flood waters have receded. 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 400 PM CDT Thursday for 
portions of Louisiana and southeast Texas.

LAT...LON 3103 9447 3111 9406 3114 9403 3116 9384
      2996 9385 2997 9386 3049 9454 3101 9466
      3106 9456

$$

Birchfield

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 26, 10:53 PM CDTExtreme Wind WarningLCHHardin, Jasper, Jefferson, Newton, Orange2 hr
Aug 27, 12:16 AM CDTFlash Flood WarningLCHNewton, Orange9 hr
Aug 27, 12:54 AM CDTExtreme Wind WarningLCHNewton, Orange2 hr
Aug 27, 2:14 AM CDTFlash Flood WarningLCHNewton8 hr
Aug 27, 2:58 AM CDTExtreme Wind WarningLCHJasper, Newton, Orange2 hr
Aug 27, 9:12 AM CDTAreal Flood WarningLCHNewton, Orange6 hr
Aug 27, 9:54 AM CDTRiver Flood WarningLCHNewton10 hr
Aug 27, 10:04 AM CDTAreal Flood WarningLCHNewton5 hr
Aug 27, 4:14 PM CDTCoastal Flood AdvisoryLCH17 hr

Nearby

Flash Flood Warnings in Texas, 2020Every flash flood warning in 2020

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.