Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 19, NWS Lake Charles, LA

May 17, 2021Jefferson County, Orange County, Texas

NWS Lake Charles, LA issued this flash flood warning at May 17, 2021, 2:03 PM CDT for Jefferson County, Orange County, Texas. It was in force for 7 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: May 17, 2021, 2:03 PM CDT (19:03 UTC)
Expired: May 17, 2021, 8:45 PM CDT
In force: 7 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Damage threat: Considerable
Flood severity: None

Counties Jefferson County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 80 km from the middle of the area, began a volume at 19:06 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, 7.1 hours before the alert went out and 81 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 626 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 699 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 314 m²/s²
Significant tornado parameter: 0.7
Supercell composite: 10.3

Open this sounding in Storm Lab

The text

As transmitted.

190 
WGUS54 KLCH 171903
FFWLCH
TXC245-361-172215-
/O.NEW.KLCH.FF.W.0019.210517T1903Z-210517T2215Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
203 PM CDT Mon May 17 2021

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Eastern Jefferson County in southeastern Texas...
  Southwestern Orange County in southeastern Texas...

* Until 515 PM CDT.

* At 203 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 4 and 7 inches of rain 
  have fallen. Flash flooding is ongoing or expected to begin 
  shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Doppler radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Beaumont, Port Arthur, Orange, Nederland, Groves, Port Neches, 
  Vidor, Bridge City, Central Gardens, Sabine Pass, Rose City, Port 
  Acres, Southeast Texas Regional Airport, La Belle and Sea Rim 
  State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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 2983 9419 3007 9423 3012 9410 3012 9389
      2998 9382 2986 9393 2982 9391 2979 9392
      2978 9389 2977 9388 2975 9389 2975 9387
      2974 9388 2974 9387 2968 9384 2966 9393
      2966 9405 2964 9411

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Brazzell

2 follow-up statements

849 
WGUS54 KLCH 172138
FFWLCH
TXC245-361-172345-
/O.EXT.KLCH.FF.W.0019.000000T0000Z-210517T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
438 PM CDT Mon May 17 2021

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Eastern Jefferson County in southeastern Texas...
  Southwestern Orange County in southeastern Texas...

* Until 645 PM CDT.

* At 438 PM CDT, Doppler radar indicated light to moderate rain is 
  currently falling and water should be receding. Between 4 and 12 
  inches of rain have fallen. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Life threatening flash flooding. Thunderstorms
           producing flash flooding.

  SOURCE...Doppler radar.

  IMPACT...Life threatening flash flooding of creeks and streams,
           urban areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Beaumont, Port Arthur, Nederland, Groves, Port Neches, Central 
  Gardens, Sabine Pass, Rose City, Port Acres, Southeast Texas 
  Regional Airport, La Belle and Sea Rim State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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 2983 9419 3007 9423 3012 9410 3002 9395
      2998 9382 2986 9393 2982 9391 2979 9392
      2978 9389 2976 9389 2977 9388 2975 9388
      2975 9387 2974 9388 2974 9387 2968 9384
      2966 9391 2966 9405 2964 9411

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Brazzell

900 
WGUS54 KLCH 172337
FFWLCH
TXC245-361-180145-
/O.EXT.KLCH.FF.W.0019.000000T0000Z-210518T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
637 PM CDT Mon May 17 2021

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Eastern Jefferson County in southeastern Texas...
  Southwestern Orange County in southeastern Texas...

* Until 845 PM CDT.

* At 637 PM CDT, Doppler radar indicated light rain across the 
  warned area with streets remaining flooded. Between 4 and 12 
  inches of rain have fallen. Flash flooding is already occurring.

  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, Central 
  Gardens, Sabine Pass, Port Acres, Southeast Texas Regional 
  Airport, La Belle and Sea Rim State Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

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

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 2983 9419 3007 9423 3002 9395 2998 9382
      2986 9393 2982 9391 2979 9392 2978 9389
      2976 9388 2976 9389 2975 9389 2975 9387
      2974 9388 2968 9384 2967 9389 2966 9399
      2966 9405 2968 9410

FLASH FLOOD...RADAR INDICATED

$$

Brazzell

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 3:44 AM CDT	Severe Thunderstorm Warning	LCH	Jefferson	61 min
May 17, 3:56 AM CDT	Special Weather Statement	LCH	Orange	49 min
May 17, 4:22 AM CDT	Severe Thunderstorm Warning	LCH	Jefferson	53 min
May 17, 5:28 AM CDT	Tornado Warning	LCH	Newton	32 min
May 17, 9:34 AM CDT	Flash Flood Warning Considerable damage threat	LCH	Jasper, Newton	5 hr
May 17, 9:37 AM CDT	Flash Flood Warning Considerable damage threat	LCH	Hardin, Jasper, Newton	5 hr
May 17, 9:40 AM CDT	Flash Flood Warning	LCH	Jefferson, Orange	5 hr
May 17, 9:54 AM CDT	Areal Flood Warning	LCH	Newton	72 hr
May 17, 10:32 AM CDT	River Flood Warning	LCH	Jasper, Tyler	32 days
May 17, 11:21 AM CDT	Flash Flood Watch	LCH	Hardin, Jasper, Newton, Tyler	5 days
May 17, 11:52 AM CDT	Flash Flood Warning EmergencyConsiderable damage threat	LCH	Jefferson	9 hr
May 17, 12:33 PM CDT	River Flood Warning	LCH	Hardin, Jefferson, Orange	28 days
May 17, 2:19 PM CDT	Flash Flood Warning Considerable damage threat	LCH	Hardin, Jasper, Newton	5 hr
May 17, 2:24 PM CDT	Flash Flood Warning	LCH	Jasper, Newton	3 hr
May 17, 3:56 PM CDT	River Flood Warning	LCH	Hardin, Jefferson, Orange	14 days
May 17, 5:34 PM CDT	Areal Flood Warning	LCH	Jasper, Orange	7 days
May 17, 6:50 PM CDT	Areal Flood Warning	LCH	Hardin, Jasper, Newton, Tyler	3 hr

Nearby

Flash Flood Warnings in Texas, 2021 Every 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.