Alert archive / Louisiana / Flash Flood Watches in 2021

Flash Flood Watch 3, NWS Lake Charles, LA

April 23, 2021Jasper County, Newton County, Tyler County, Texas; 7 parishes in Louisiana

NWS Lake Charles, LA issued this flash flood watch at Apr 23, 2021, 2:50 PM CDT for Jasper County, Newton County, Tyler County, Texas; 7 parishes in Louisiana. It took effect at Apr 23, 2021, 4:00 PM CDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued: Apr 23, 2021, 2:50 PM CDT (19:50 UTC)
In effect from: Apr 23, 2021, 4:00 PM CDT
Expired: Apr 24, 2021, 2:47 AM CDT
In force: 11 hr
Issued by: NWS Lake Charles, LA
Flood severity: None

Counties Allen Parish, LA, Avoyelles Parish, LA, Beauregard Parish, LA, Evangeline Parish, LA, Rapides Parish, LA, Saint Landry Parish, LA, Vernon Parish, LA, Jasper County, TX, Newton County, TX, Tyler County, TX

The radar

The Ft Polk radar (KPOE), 37 km from the middle of the area, began a volume at 19:52 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.

The nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 7.8 hours before the alert went out and 80 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: 12 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 523 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 373 m²/s²
0-3 km storm-relative helicity: 419 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

669 
WGUS64 KLCH 231950
FFALCH

URGENT - IMMEDIATE BROADCAST REQUESTED
Flood Watch
National Weather Service Lake Charles LA
250 PM CDT Fri Apr 23 2021

LAZ027>033-TXZ180-259-260-241200-
/O.NEW.KLCH.FF.A.0003.210423T2100Z-210424T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Tyler-Northern Jasper-Northern Newton-
Including the cities of Bundick Lake, Holly Springs, Magnolia 
Springs, Opelousas, Town Bluff, Mansura, Kinder, Pickering, Call, 
Fort Polk, Jamestown, Effie, Reddell, Oakdale, Cottonport, Ville 
Platte, Eunice, Spurger, Fred, Simmesport, Slagle, Roganville, 
Pineville, Wiergate, St. Landry, Mamou, Oretta, Fields, Burkeville, 
Marksville, Lawtell, Mt. Union, Farrsville, Alexandria, Woodville, 
Bleakwood, Kirbyville, Bunkie, Newton, De Ridder, Ivanhoe, Jasper, 
Beaver, Warren, Leesville, and Hillister
250 PM CDT Fri Apr 23 2021

...FLASH FLOOD WATCH IN EFFECT THROUGH SATURDAY MORNING...

The National Weather Service in Lake Charles has issued a

* Flash Flood Watch for portions of Louisiana and southeast Texas, 
  including the following areas, in Louisiana, Allen, Avoyelles, 
  Beauregard, Evangeline, Rapides, St. Landry and Vernon. In 
  southeast Texas, Northern Jasper, Northern Newton and Tyler.

* Through Saturday morning

* Rainfall totals of 2 to 6 inches, with locally higher amounts 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
Flash Flooding. Flash Flooding is a VERY DANGEROUS SITUATION. You 
should monitor later forecasts and be prepared to take action should 
Flash Flood Warnings be issued.

&&

$$

Warthen

2 follow-up statements

367 
WGUS64 KLCH 240508
FFALCH

Flood Watch
National Weather Service Lake Charles LA
1208 AM CDT Sat Apr 24 2021

TXZ180-259-260-240615-
/O.CAN.KLCH.FF.A.0003.000000T0000Z-210424T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Tyler-Northern Jasper-Northern Newton-
Including the cities of Mt. Union, Woodville, Bleakwood, Holly 
Springs, Fred, Newton, Magnolia Springs, Spurger, Town Bluff, 
Kirbyville, Burkeville, Ivanhoe, Call, Jasper, Wiergate, Jamestown, 
Warren, Farrsville, Roganville, and Hillister
1208 AM CDT Sat Apr 24 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for a portion of southeast Texas, including 
the following areas, Northern Jasper, Northern Newton and Tyler has 
been cancelled.

The Flood Watch is cancelled.

$$

LAZ027>033-241200-
/O.CON.KLCH.FF.A.0003.000000T0000Z-210424T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Including the cities of Bundick Lake, Opelousas, Mansura, Kinder, 
Pickering, Fort Polk, Effie, Reddell, Oakdale, Cottonport, Ville 
Platte, Eunice, Simmesport, Slagle, Pineville, St. Landry, Mamou, 
Oretta, Fields, Marksville, Lawtell, Alexandria, Bunkie, De Ridder, 
Beaver, and Leesville
1208 AM CDT Sat Apr 24 2021

...FLASH FLOOD WATCH REMAINS IN EFFECT UNTIL 7 AM CDT THIS MORNING...

The Flash Flood Watch continues for

* Portions of central Louisiana...southwest Louisiana and west 
  central Louisiana, including the following areas, in central 
  Louisiana, Avoyelles, Evangeline, Rapides and St. Landry. In 
  southwest Louisiana, Allen and Beauregard. In west central 
  Louisiana, Vernon.

* Until 7 AM CDT this morning

* Rainfall totals of 2 to 4 inches, with locally higher amounts 
  possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Flash Flood Watch means that conditions may develop that lead to 
Flash Flooding. Flash Flooding is a VERY DANGEROUS SITUATION. You 
should monitor later forecasts and be prepared to take action should 
Flash Flood Warnings be issued.

&&

$$

87

492 
WGUS64 KLCH 240747
FFALCH

Flood Watch
National Weather Service Lake Charles LA
247 AM CDT Sat Apr 24 2021

LAZ027>033-240900-
/O.CAN.KLCH.FF.A.0003.000000T0000Z-210424T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Vernon-Rapides-Avoyelles-Beauregard-Allen-Evangeline-St. Landry-
Including the cities of Bundick Lake, Opelousas, Mansura, Kinder, 
Pickering, Fort Polk, Effie, Reddell, Oakdale, Cottonport, Ville 
Platte, Eunice, Simmesport, Slagle, Pineville, St. Landry, Mamou, 
Oretta, Fields, Marksville, Lawtell, Alexandria, Bunkie, De Ridder, 
Beaver, and Leesville
247 AM CDT Sat Apr 24 2021

...FLASH FLOOD WATCH IS CANCELLED...

The Flash Flood Watch for portions of central Louisiana...southwest 
Louisiana and west central Louisiana, including the following areas, 
in central Louisiana, Avoyelles, Evangeline, Rapides and St. Landry. 
In southwest Louisiana, Allen and Beauregard. In west central 
Louisiana, Vernon has been cancelled.

The Flood Watch is cancelled. Flooding is no longer expected to pose 
a threat. Please continue to heed remaining road closures.

$$

Rua

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 2:35 PM CDT	River Flood Warning	LCH	Newton	4 days
Apr 23, 2:35 PM CDT	River Flood Warning	LCH	Newton, Orange	76 days
Apr 23, 4:27 PM CDT	Special Weather Statement	LCH	Sabine	33 min
Apr 23, 4:31 PM CDT	Special Weather Statement	LCH	Tyler	29 min
Apr 23, 4:47 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	28 min
Apr 23, 5:12 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Tyler	63 min
Apr 23, 6:08 PM CDT	Severe Thunderstorm Warning	LCH	Jasper, Newton	67 min
Apr 23, 6:42 PM CDT	Severe Thunderstorm Warning	LCH	Hardin, Jasper, Newton, Tyler	63 min
Apr 23, 4:03 AM CDT	Small Craft Advisory	LCH		24 hr
Apr 23, 10:11 AM CDT	River Flood Warning	LCH	Calcasieu	4 days
Apr 23, 6:53 PM CDT	Special Weather Statement	LCH	Rapides	37 min

Nearby

Flash Flood Watches in Louisiana, 2021 Flash Flood Watches in Texas, 2021 Every flash flood watch 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.