Alert archive / Louisiana / Flash Flood Warnings in 2017

Flash Flood Warning 2, NWS Lake Charles, LA

March 29, 2017Calcasieu Parish, Cameron Parish, Jefferson Davis Parish, Louisiana; Jefferson County, Newton County, Orange County, Texas

NWS Lake Charles, LA issued this flash flood warning at Mar 29, 2017, 7:53 PM CDT for Calcasieu Parish, Cameron Parish, Jefferson Davis Parish, Louisiana; Jefferson County, Newton County, Orange County, Texas. It was in force for 6 hr. 2 reports 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: Mar 29, 2017, 7:53 PM CDT (00:53 UTC)
Expired: Mar 30, 2017, 1:45 AM CDT
In force: 6 hr
Issued by: NWS Lake Charles, LA
Area: Storm-based polygon
Flood severity: None

Counties Calcasieu Parish, LA, Cameron Parish, LA, Jefferson Davis Parish, LA, Jefferson County, TX, Newton County, TX, Orange County, TX

The radar

The Lake Charles radar (KLCH), 34 km from the middle of the area, began a volume at 00:52 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
Mar 29, 8:48 PM CDT	FLASH FLOOD	6 S Lake Charles, LA	WATER COMING INTO HOME AT DEBBIE LANE...JUST OFF OF TANK FARM.
Mar 29, 10:50 PM CDT	FLASH FLOOD	Sulphur, LA	PUBLIC REPORTED FLOODING INTO HOME IN SULPHUR

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, 0.9 hours before the alert went out and 35 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: 1539 J/kg
Mixed-layer CIN: -1 J/kg
Mixed-layer LCL: 662 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 157 m²/s²
0-3 km storm-relative helicity: 162 m²/s²
Significant tornado parameter: 1.1
Supercell composite: 4.5

Open this sounding in Storm Lab

The text

As transmitted.

397 
WGUS54 KLCH 300053
FFWLCH
LAC019-023-053-TXC245-351-361-300645-
/O.NEW.KLCH.FF.W.0002.170330T0053Z-170330T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
753 PM CDT WED MAR 29 2017

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Northern Cameron Parish in southwestern Louisiana...
  Southwestern Jefferson Davis Parish in southwestern Louisiana...
  Calcasieu Parish in southwestern Louisiana...
  East central Jefferson County in southeastern Texas...
  South central Newton County in southeastern Texas...
  Orange County in southeastern Texas...

* Until 145 AM CDT

* At 751 PM CDT, Doppler radar and automated rain gauges indicated 
  thunderstorms producing heavy rain across the warned area. One to 
  three inches have already fallen and additional heavy rainfall is 
  expected over the next several hours. Flash flooding is expected 
  to begin shortly.

* Some locations that will experience flooding include...
  Beaumont, Lake Charles, Port Arthur, Sulphur, Orange, Nederland,
  Port Neches, Bridge City, Westlake, West Orange, Vinton, Iowa,
  Grand Lake, Deweyville, Hayes, Moss Bluff, Lacassine National
  Wildlife Refuge, Lake Charles Regional Airport, Starks and
  Mauriceville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2994 9326 2997 9327 3002 9327 3005 9329
      3005 9333 2995 9334 2995 9376 2997 9376
      2999 9380 3000 9379 2998 9383 2999 9386
      2997 9384 2995 9387 2995 9400 3013 9400
      3036 9372 3036 9289 2994 9287

$$

TWH

2 follow-up statements

297 
WGUS74 KLCH 300316
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
1016 PM CDT WED MAR 29 2017

TXC245-351-361-300324-
/O.CAN.KLCH.FF.W.0002.000000T0000Z-170330T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson TX-Newton TX-Orange TX-
1016 PM CDT WED MAR 29 2017

...THE FLASH FLOOD WARNING FOR EAST CENTRAL JEFFERSON...SOUTH CENTRAL
NEWTON AND ORANGE COUNTIES IS CANCELLED...

Heavy rainfall has exited the area and flash flooding is no longer 
expected to pose a threat. Please continue to heed any remaining 
road closures.

LAT...LON 2994 9325 3000 9327 3002 9327 3005 9329
      3005 9333 2995 9334 2995 9376 2997 9376
      2999 9379 3004 9373 3006 9370 3008 9373
      3014 9369 3021 9372 3023 9371 3029 9371
      3032 9375 3036 9372 3036 9289 2994 9287

$$

LAC019-023-053-300645-
/O.CON.KLCH.FF.W.0002.000000T0000Z-170330T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron LA-Jefferson Davis LA-Calcasieu LA-
1016 PM CDT WED MAR 29 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR
NORTHERN CAMERON...SOUTHWESTERN JEFFERSON DAVIS AND CALCASIEU
PARISHES...

At 1014 PM CDT, Doppler radar and automated rain gauges indicated 
thunderstorms producing heavy rain over the warned area. Three to 
five inches of rain have fallen. Additional rainfall amounts of two 
to three inches are possible in the warned area. Flash flooding is 
expected to continue over the next over the next several hours.

Some locations that will experience flooding include...
Lake Charles, Sulphur, Westlake, Vinton, Iowa, Grand Lake, Lacassine
National Wildlife Refuge, Lake Charles Regional Airport, Starks,
Hayes, Moss Bluff, Carlyss, Lunita, Hacketts Corner, Buhler, Lebleu
Settlement, Edgerly, Hackberry, Sweet Lake and Holmwood.

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.

&&

LAT...LON 2994 9325 3000 9327 3002 9327 3005 9329
      3005 9333 2995 9334 2995 9376 2997 9376
      2999 9379 3004 9373 3006 9370 3008 9373
      3014 9369 3021 9372 3023 9371 3029 9371
      3032 9375 3036 9372 3036 9289 2994 9287

$$

TWH

310 
WGUS74 KLCH 300631
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
131 AM CDT THU MAR 30 2017

LAC023-300638-
/O.CAN.KLCH.FF.W.0002.000000T0000Z-170330T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Cameron LA-
131 AM CDT THU MAR 30 2017

...THE FLASH FLOOD WARNING FOR NORTHERN CAMERON PARISH IS
CANCELLED...

Flooding is no longer expected to pose a threat. Please continue to
heed any remaining road closures.

LAT...LON 3006 9370 3008 9373 3014 9369 3021 9372
      3023 9371 3036 9336 3036 9289 3004 9288

$$

LAC019-053-300645-
/O.CON.KLCH.FF.W.0002.000000T0000Z-170330T0645Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson Davis LA-Calcasieu LA-
131 AM CDT THU MAR 30 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 145 AM CDT FOR
SOUTHWESTERN JEFFERSON DAVIS AND CALCASIEU PARISHES...

At 128 AM CDT, Doppler radar indicated thunderstorms producing heavy 
rain have moved out of the warned area. 1 to 6 inches of rain have 
fallen. Flooding remains ongoing at a few locations inside the 
warning, however water levels are expected to recede through the 
next few hours.

Some locations that will experience flooding include...
Lake Charles, Sulphur, Westlake, Vinton, Iowa, Lake Charles Regional
Airport, Hayes, Moss Bluff, Carlyss, Buhler, Lebleu Settlement,
Edgerly, Holmwood, Bell City and Lacassine.


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.

&&

LAT...LON 3006 9370 3008 9373 3014 9369 3021 9372
      3023 9371 3036 9336 3036 9289 3004 9288

$$

Tingler

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 29, 7:00 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Calcasieu, Cameron, Jefferson Davis	45 min
Mar 29, 7:03 PM CDT	Special Weather Statement	LCH	Allen, Jefferson Davis	57 min
Mar 29, 7:42 PM CDT	Special Weather Statement	LCH	Acadia	48 min
Mar 29, 8:00 PM CDT	Tornado Warning	LCH	Acadia, Jefferson Davis	30 min
Mar 29, 8:20 PM CDT	Special Weather Statement	LCH	Acadia, Lafayette, Saint Landry	40 min
Mar 29, 8:27 PM CDT	Severe Thunderstorm Warning	LCH	Acadia, Evangeline, Lafayette, Saint Landry	48 min
Mar 29, 8:27 PM CDT	Tornado Warning	LCH	Allen, Evangeline, Rapides	12 min
Mar 29, 8:50 PM CDT	Severe Thunderstorm Warning	LCH	Iberia, Lafayette, Saint Landry, Saint Martin, St. Mary, Vermilion	40 min
Mar 29, 9:23 PM CDT	Special Weather Statement	LCH	Calcasieu	52 min
Mar 29, 9:25 PM CDT	Special Weather Statement	LCH	Acadia	35 min
Mar 29, 9:28 PM CDT	Special Weather Statement	LCH	Vermilion	32 min
Mar 29, 9:30 PM CDT	Special Weather Statement	LCH	Saint Martin	30 min
Mar 29, 9:44 PM CDT	Areal Flood Advisory	LCH	Acadia, Evangeline, Jefferson Davis, Saint Landry	3 hr
Mar 29, 9:56 PM CDT	Special Weather Statement	LCH	Saint Martin	49 min
Mar 29, 10:30 PM CDT	Flash Flood Warning	LCH	Acadia, Allen, Evangeline, Jefferson Davis, Saint Landry	6 hr
Mar 29, 10:43 PM CDT	Special Weather Statement	LCH	Saint Martin	47 min
Mar 29, 11:25 PM CDT	Special Weather Statement	LCH	Saint Martin	65 min
Mar 30, 12:19 AM CDT	Special Weather Statement	LCH	Vermilion	56 min
Mar 30, 12:26 AM CDT	Special Marine Warning	LCH		49 min
Mar 30, 12:31 AM CDT	Severe Thunderstorm Warning	LCH	Cameron, Vermilion	44 min
Mar 30, 12:32 AM CDT	Special Weather Statement	LCH	Saint Martin	43 min
Mar 30, 1:14 AM CDT	Special Marine Warning	LCH		61 min
Mar 30, 1:17 AM CDT	Special Weather Statement	LCH	Vermilion	43 min
Mar 30, 1:42 AM CDT	Flash Flood Warning	LCH	Saint Landry	5 hr
Mar 30, 1:45 AM CDT	Areal Flood Advisory	LCH	Lafayette, Saint Martin	4 hr
Mar 30, 1:55 AM CDT	Areal Flood Warning	LCH	Calcasieu, Jefferson Davis	6 hr
Mar 30, 2:05 AM CDT	Special Weather Statement	LCH	Vermilion	40 min
Mar 30, 2:10 AM CDT	Special Marine Warning	LCH		65 min
Mar 30, 2:20 AM CDT	River Flood Warning	LCH	Calcasieu	16 days
Mar 30, 2:40 AM CDT	Special Weather Statement	LCH	Iberia, Saint Martin, St. Mary	50 min
Mar 30, 3:10 AM CDT	Special Marine Warning	LCH		95 min
Mar 30, 3:20 AM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin, St. Mary	3 hr
Mar 30, 4:31 AM CDT	Areal Flood Warning	LCH	Acadia, Allen, Evangeline, Jefferson Davis, Saint Landry	6 hr
Mar 30, 4:45 AM CDT	Special Weather Statement	LCH	Assumption	45 min
Mar 30, 4:55 AM CDT	River Flood Warning	LCH	Acadia, Evangeline, Saint Landry	7 days
Mar 30, 5:16 AM CDT	River Flood Warning	LCH	Calcasieu	29 hr
Mar 30, 6:06 AM CDT	Special Marine Warning	LCH		84 min
Mar 30, 6:18 AM CDT	Special Weather Statement	LCH	St. Mary	42 min
Mar 30, 6:21 AM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin, St. Mary	114 min
Mar 30, 6:29 AM CDT	Severe Thunderstorm Warning	LCH	St. Mary	27 min
Mar 30, 9:12 AM CDT	Areal Flood Advisory	LCH	Iberia, Saint Martin, St. Mary, Vermilion	3 hr
Mar 30, 10:06 AM CDT	River Flood Warning	LCH	Calcasieu	34 hr

Nearby

Flash Flood Warnings in Louisiana, 2017 Flash Flood Warnings in Texas, 2017 Every flash flood warning in 2017

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.