Alert archive / Texas / Flash Flood Warnings in 2021

Flash Flood Warning 16, NWS Lake Charles, LA

May 17, 2021Jefferson County, Texas

NWS Lake Charles, LA issued this flash flood warning at May 17, 2021, 11:52 AM CDT for Jefferson County, Texas. It was in force for 9 hr. 5 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
May 17, 2021, 11:52 AM CDT (16:52 UTC)
Expired
May 17, 2021, 8:45 PM CDT
In force
9 hr
Issued by
NWS Lake Charles, LA
Area
Storm-based polygon
Emergency
Flash flood emergency
Damage threat
Considerable
Flood severity
None

County Jefferson County, TX

The radar

The Houston radar (KHGX), 83 km from the middle of the area, began a volume at 16:53 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

TimeReportWhereRemark
May 17, 12:56 PM CDTHEAVY RAIN 13Fannett, TXREPORT OF 13 INCHCES OF TOTAL RAIN AT GREEN ACRES GROCERY IN FANNETT. REPORT ALSO STATES WATER RAPIDLY RISING IN NEARBY HOMES WITH AROUND 7 INCHES POSSIBLY IN THE LAST HOUR.
May 17, 1:02 PM CDTFLASH FLOODFannett, TXWATER ENTERING HOMES
May 17, 2:02 PM CDTHEAVY RAIN 16Fannett, TXUPDATE TO PREVIOUS RAINFALL REPORT... NEW TOTAL OF AROUND 16 INCHES IN FANNETT NEAR THE GREEN ACRES GROCERY.
May 17, 2:09 PM CDTFLASH FLOODFannett, TXI-10 IS FLOODED BETWEEN BEAUMONT AND HAMSHIRE WITH TRAVEL DISCOURAGED.
May 17, 3:20 PM CDTFLASH FLOODFannett, TXWATER IN SEVERAL HOMES

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 12:00Z, 4.9 hours before the alert went out and 115 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, Lake Charles Mun, LA at 12:00Z on 2021-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 626 joules per kilogram.LCLLFCEL10008507005003002001001 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, Lake Charles Mun, LA at 12:00Z on 2021-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 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
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.

830 
WGUS54 KLCH 171652
FFWLCH
TXC245-172000-
/O.NEW.KLCH.FF.W.0016.210517T1652Z-210517T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Lake Charles LA
1152 AM CDT Mon May 17 2021

The National Weather Service in Lake Charles has issued a

* Flash Flood Warning for...
  Northwestern Jefferson County in southeastern Texas...

* Until 300 PM CDT.

* At 1152 AM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 4 and 8 inches of rain 
  have fallen. Flash flooding is already occurring.

  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...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

Additional rainfall amounts of 1 to 4 inches are possible in the 
warned area.

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

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

$$

Brazzell
6 follow-up statements
291 
WGUS74 KLCH 171755
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
1255 PM CDT Mon May 17 2021

TXC245-172000-
/O.CON.KLCH.FF.W.0016.000000T0000Z-210517T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson TX-
1255 PM CDT Mon May 17 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 PM CDT THIS 
AFTERNOON FOR NORTHWESTERN JEFFERSON COUNTY...

At 1255 PM CDT, Doppler radar indicated thunderstorms producing 
heavy rain across the warned area. Between 5 and 11 inches of rain 
have fallen. Flash flooding is already occurring.

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...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

Additional rainfall amounts of 2 to 6 inches are possible in the 
warned area.

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

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

$$

Brazzell
871 
WGUS74 KLCH 171837
FFSLCH

Flash Flood Statement
National Weather Service Lake Charles LA
137 PM CDT Mon May 17 2021

TXC245-172000-
/O.CON.KLCH.FF.W.0016.000000T0000Z-210517T2000Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Jefferson TX-
137 PM CDT Mon May 17 2021

...FLASH FLOOD EMERGENCY FOR WESTERN JEFFERSON COUNTY AROUND 
FANNETT...

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 3 PM CDT THIS 
AFTERNOON FOR NORTHWESTERN JEFFERSON COUNTY...

At 137 PM CDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 7 and 14 inches of rain have 
fallen. Flash flooding is already occurring.

This is a FLASH FLOOD EMERGENCY for Western Jefferson County around 
Fannett. This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER 
GROUND NOW!

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

SOURCE...Doppler radar.

IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK HIGHER
         GROUND NOW! Life threatening flash flooding of low water
         crossings, small creeks and streams, urban areas,
         highways, streets and underpasses.

Some locations that will experience flash flooding include...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

Additional rainfall amounts of 2 to 6 inches are possible in the 
warned area.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

Brazzell
728 
WGUS54 KLCH 171939
FFWLCH
TXC245-172130-
/O.EXT.KLCH.FF.W.0016.000000T0000Z-210517T2130Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

...FLASH FLOOD EMERGENCY FOR WESTERN JEFFERSON COUNTY AROUND 
FANNETT...

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Northwestern Jefferson County in southeastern Texas...

* Until 430 PM CDT.

* At 239 PM CDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 8 and 16 inches of rain 
  have fallen. Flash flooding is already occurring.

  This is a FLASH FLOOD EMERGENCY for Western Jefferson County 
  around Fannett. This is a PARTICULARLY DANGEROUS SITUATION. SEEK 
  HIGHER GROUND NOW!

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

  SOURCE...Doppler radar.

  IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
           HIGHER GROUND NOW! Life threatening flash flooding of
           low water crossings, small creeks and streams, urban
           areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

FLASH FLOOD...RADAR INDICATED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

Brazzell
389 
WGUS54 KLCH 172110
FFWLCH
TXC245-172300-
/O.EXT.KLCH.FF.W.0016.000000T0000Z-210517T2300Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

...FLASH FLOOD EMERGENCY FOR WESTERN JEFFERSON COUNTY AROUND 
FANNETT...

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Northwestern Jefferson County in southeastern Texas...

* Until 600 PM CDT.

* At 410 PM CDT, the public reported severe flooding across the  
  warned area. Between 8 and 16 inches of rain have fallen. Flash 
  flooding is already occurring.

  This is a FLASH FLOOD EMERGENCY for Western Jefferson County 
  around Fannett. This is a PARTICULARLY DANGEROUS SITUATION. SEEK 
  HIGHER GROUND NOW!

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

  SOURCE...Public.

  IMPACT...This is a PARTICULARLY DANGEROUS SITUATION. SEEK
           HIGHER GROUND NOW! Life threatening flash flooding of
           low water crossings, small creeks and streams, urban
           areas, highways, streets and underpasses.

* Some locations that will experience flash flooding include...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now! This is an extremely dangerous and 
life-threatening situation. Do not attempt to travel unless you are 
fleeing an area subject to flooding or under an evacuation order.

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CATASTROPHIC

$$

Brazzell
622 
WGUS54 KLCH 172238
FFWLCH
TXC245-180030-
/O.EXT.KLCH.FF.W.0016.000000T0000Z-210518T0030Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Northwestern Jefferson County in southeastern Texas...

* Until 730 PM CDT.

* At 538 PM CDT, the public reported severe flooding occurring 
  across the area. Between 8 and 16 inches of rain have fallen. 
  Flash flooding is already occurring.

  HAZARD...Life threatening flash flooding.

  SOURCE...Public.

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

* Some locations that will experience flash flooding include...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

Brazzell
843 
WGUS54 KLCH 180016
FFWLCH
TXC245-180145-
/O.EXT.KLCH.FF.W.0016.000000T0000Z-210518T0145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

The National Weather Service in Lake Charles has extended the

* Flash Flood Warning for...
  Northwestern Jefferson County in southeastern Texas...

* Until 845 PM CDT.

* At 716 PM CDT, the public reported severe flooding occurring 
  across the area. Between 8 and 16 inches of rain have fallen. 
  Flash flooding is already occurring.

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

  SOURCE...Public.

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

* Some locations that will experience flash flooding include...
  Hamshire, China and Fannett.

This includes the following highways...
	Interstate 10 in Texas between mile markers 842 and 832.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3000 9444 3006 9424 2981 9419 2978 9436
      2980 9436 2981 9436 2983 9436 2985 9436
      2988 9436 2989 9436 2989 9438 2989 9444

FLASH FLOOD...OBSERVED
FLASH FLOOD DAMAGE THREAT...CONSIDERABLE

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 3:44 AM CDTSevere Thunderstorm WarningLCHJefferson61 min
May 17, 3:56 AM CDTSpecial Weather StatementLCHOrange49 min
May 17, 4:22 AM CDTSevere Thunderstorm WarningLCHJefferson53 min
May 17, 5:28 AM CDTTornado WarningLCHNewton32 min
May 17, 9:34 AM CDTFlash Flood Warning Considerable damage threatLCHJasper, Newton5 hr
May 17, 9:37 AM CDTFlash Flood Warning Considerable damage threatLCHHardin, Jasper, Newton5 hr
May 17, 9:40 AM CDTFlash Flood WarningLCHJefferson, Orange5 hr
May 17, 9:54 AM CDTAreal Flood WarningLCHNewton72 hr
May 17, 10:32 AM CDTRiver Flood WarningLCHJasper, Tyler32 days
May 17, 11:21 AM CDTFlash Flood WatchLCHHardin, Jasper, Newton, Tyler5 days
May 17, 12:33 PM CDTRiver Flood WarningLCHHardin, Jefferson, Orange28 days
May 17, 2:03 PM CDTFlash Flood Warning Considerable damage threatLCHJefferson, Orange7 hr
May 17, 2:19 PM CDTFlash Flood Warning Considerable damage threatLCHHardin, Jasper, Newton5 hr
May 17, 2:24 PM CDTFlash Flood WarningLCHJasper, Newton3 hr
May 17, 3:56 PM CDTRiver Flood WarningLCHHardin, Jefferson, Orange14 days
May 17, 5:34 PM CDTAreal Flood WarningLCHJasper, Orange7 days
May 17, 6:50 PM CDTAreal Flood WarningLCHHardin, Jasper, Newton, Tyler3 hr

Nearby

Flash Flood Warnings in Texas, 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.