Alert archive / Texas / River Flood Warnings in 2021

River Flood Warning 104, NWS Shreveport, LA

May 25, 2021Cass County, Harrison County, Marion County, Texas; Caddo Parish, Louisiana

NWS Shreveport, LA issued this river flood warning at May 25, 2021, 9:10 AM CDT for Cass County, Harrison County, Marion County, Texas; Caddo Parish, Louisiana. It took effect at May 25, 2021, 1:00 PM CDT. It was in force for 8 days.

The area

The outline as issued.

The facts

Issued
May 25, 2021, 9:10 AM CDT (14:10 UTC)
In effect from
May 25, 2021, 1:00 PM CDT
Expired
Jun 2, 2021, 10:19 AM CDT
In force
8 days
Issued by
NWS Shreveport, LA
Area
Storm-based polygon
Flood severity
Minor

Counties Caddo Parish, LA, Cass County, TX, Harrison County, TX, Marion County, TX

The radar

The Shreveport radar (KSHV), 38 km from the middle of the area, began a volume at 14:10 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 river

Written for the forecast point Big Cypress Creek at Mooringsport (Caddo Lake) (LCOL1).

Action stage
171.5 ft
Minor stage
172 ft
Moderate stage
174.5 ft
Major stage
178 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 07346310, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

The text

As transmitted.

835 
WGUS44 KSHV 251410
FLWSHV

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Shreveport LA
910 AM CDT Tue May 25 2021

...The National Weather Service in Shreveport LA has issued a Flood 
Warning for the following rivers in Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish and Marion, 
  Harrison, and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

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

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-261545-
/O.NEW.KSHV.FL.W.0104.210525T1800Z-000000T0000Z/
/LCOL1.1.UU.210525T1800Z.210527T0600Z.000000T0000Z.NO/
910 AM CDT Tue May 25 2021

The National Weather Service in Shreveport has issued a

* Flood Warning for
  the Big Cypress Bayou At Caddo Lake.
* From this afternoon until further notice.
* At 6:00 AM CDT Tuesday the stage was 171.9 feet.
* Flood pool stage is 172 feet.
* Minor flooding is forecast.
* Forecast...The lake is expected to rise above flood pool stage 
  this Tuesday afternoon and continue rising to a crest of 172.5 
  feet early Thursday morning.
* Impact...Minor lowland flooding of camps, access roads, and boat 
  ramps around the lake.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

08
16 follow-up statements
930 
WGUS84 KSHV 260048
FLSSHV

Flood Statement
National Weather Service Shreveport LA
748 PM CDT Tue May 25 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-270100-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210601T0000Z/
/LCOL1.1.UU.210525T1720Z.210527T0600Z.210530T1200Z.NO/
748 PM CDT Tue May 25 2021

...The Flood Warning is now in effect until Monday evening...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Monday evening.
* At 6:00 AM CDT Tuesday the stage was 171.9 feet.
* Flood stage is 172.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 172.5 feet 
  early Thursday morning. It will then fall below flood stage Sunday 
  morning.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

25
562 
WGUS84 KSHV 261423
FLSSHV

Flood Statement
National Weather Service Shreveport LA
923 AM CDT Wed May 26 2021

...The Flood Warning is extended for the following bayou in Texas...

  Black Cypress Bayou At Jefferson affecting Marion and Cass 
  Counties.

  Little Cypress Bayou Near Jefferson affecting Marion, Upshur, 
  Harrison and Gregg Counties.

...The Flood Warning continues for the following bayou in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish, and 
  Marion, Harrison, and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


TXC183-203-315-459-271600-
/O.EXT.KSHV.FL.W.0092.000000T0000Z-210527T2100Z/
/JFFT2.1.ER.210522T1203Z.210523T1945Z.210527T0300Z.NO/
923 AM CDT Wed May 26 2021

...The Flood Warning is now in effect until tomorrow afternoon...

The Flood Warning continues for
  the Little Cypress Bayou Near Jefferson.
* Until Thursday afternoon.
* At 8:15 AM CDT Wednesday the stage was 13.4 feet.
* Flood stage is 13 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum bayou stage in the 24 hours ending 
  at 8:15 AM CDT Wednesday was 14.3 feet.
* Forecast...The Little Cypress Bayou is expected to fall below 
  flood stage late this Wednesday evening and continue falling to 
  10.3 feet Monday morning.
* Impact...Minor lowland flooding to end throughout this Wednesday.


&&

LAT...LON 3267 9470 3265 9448 3276 9427 3272 9425
      3260 9459

$$

TXC067-315-271600-
/O.EXT.KSHV.FL.W.0091.000000T0000Z-210529T0600Z/
/JEFT2.1.ER.210520T1600Z.210523T0730Z.210528T1200Z.NO/
923 AM CDT Wed May 26 2021

...The Flood Warning is now in effect until early Saturday morning...

The Flood Warning continues for
  the Black Cypress Bayou At Jefferson.
* Until late Friday night.
* At 9:00 AM CDT Wednesday the stage was 14.1 feet.
* Flood stage is 13 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum bayou stage in the 24 hours ending 
  at 9:00 AM CDT Wednesday was 14.7 feet.
* Forecast...The Black Cypress Bayou is expected to fall below flood 
  stage Friday morning and continue falling to 9.5 feet Monday 
  morning.
* Impact...At 14 feet, Minor lowland flooding.


&&

LAT...LON 3297 9448 3275 9425 3275 9433 3278 9440
      3289 9450

$$

LAC017-TXC067-203-315-271600-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210601T0000Z/
/LCOL1.1.UU.210525T1720Z.210527T0600Z.210530T1200Z.NO/
923 AM CDT Wed May 26 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Monday evening.
* At 7:00 AM CDT Wednesday the pool stage was 172.2 feet.
* Flood pool stage is 172 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum pool stage in the 24 hours ending at 
  7:00 AM CDT Wednesday was 172.2 feet.
* Forecast...The lake is expected to rise to a crest of 172.5 feet 
  by early Thursday morning. It will then fall below flood pool 
  stage Sunday morning.
* Impact...Minor lowland flooding of camps, access roads, and boat 
  ramps around the lake.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

08
604 
WGUS84 KSHV 270032
FLSSHV

Flood Statement
National Weather Service Shreveport LA
732 PM CDT Wed May 26 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-280045-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210601T0000Z/
/LCOL1.1.UU.210525T1720Z.210527T0600Z.210530T1200Z.NO/
732 PM CDT Wed May 26 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Monday evening.
* At 7:00 AM CDT Wednesday the stage was 172.2 feet.
* Flood stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to rise to a crest of 172.5 feet 
  just after midnight tonight. It will then fall below flood stage 
  Sunday morning.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

25
574 
WGUS84 KSHV 271456
FLSSHV

Flood Statement
National Weather Service Shreveport LA
956 AM CDT Thu May 27 2021

...The Flood Warning is extended for the following bayous in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish, and 
  Marion, Harrison, and Cass Counties.

  Black Cypress Bayou At Jefferson affecting Marion and Cass 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-281630-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210602T0000Z/
/LCOL1.1.UU.210525T1720Z.210527T1800Z.210531T1200Z.NO/
956 AM CDT Thu May 27 2021

...The Flood Warning is now in effect until Tuesday evening...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Tuesday evening.
* At 7:00 AM CDT Thursday the pool stage was 172.4 feet.
* Flood pool stage is 172 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum pool stage in the 24 hours ending at 
  7:00 AM CDT Thursday was 172.4 feet.
* Forecast...Expect little change through Friday morning as Caddo 
  Lake crests near 172.5 feet.  It will then fall below flood pool 
  stage Monday morning.
* Impact...Minor lowland flooding of camps, access roads, and boat 
  ramps around the lake.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

TXC067-315-281630-
/O.EXT.KSHV.FL.W.0091.000000T0000Z-210530T0600Z/
/JEFT2.1.ER.210520T1600Z.210523T0730Z.210529T1200Z.NO/
956 AM CDT Thu May 27 2021

...The Flood Warning is now in effect until early Sunday morning...

The Flood Warning continues for
  the Black Cypress Bayou At Jefferson.
* Until late Saturday night.
* At 9:00 AM CDT Thursday the stage was 13.5 feet.
* Flood stage is 13 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum bayou stage in the 24 hours ending 
  at 9:00 AM CDT Thursday was 14.1 feet.
* Forecast...The Black Cypress Bayou is expected to fall below flood 
  stage Saturday morning and continue falling to 11.9 feet Tuesday 
  morning.
* Impact...At 14 feet, Minor lowland flooding.


&&

LAT...LON 3297 9448 3275 9425 3275 9433 3278 9440
      3289 9450

$$

08
044 
WGUS84 KSHV 280235
FLSSHV

Flood Statement
National Weather Service Shreveport LA
935 PM CDT Thu May 27 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-290245-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210602T0000Z/
/LCOL1.1.UU.210525T1720Z.210528T0600Z.210531T1200Z.NO/
935 PM CDT Thu May 27 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Tuesday evening.
* At 7:00 AM CDT Thursday the stage was 172.4 feet.
* Flood stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:00 AM CDT Thursday was 172.4 feet.
* Forecast...The river is expected to rise to a crest of 172.4 feet 
  just after midnight tonight. It will then fall below flood stage 
  Monday morning.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

44
808 
WGUS84 KSHV 281339
FLSSHV

Flood Statement
National Weather Service Shreveport LA
839 AM CDT Fri May 28 2021

...The Flood Warning is extended for the following bayou in Texas...

  Black Cypress Bayou At Jefferson affecting Marion and Cass 
  Counties.

...The Flood Warning continues for the following bayou in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish, and 
  Marion, Harrison, and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


TXC067-315-291515-
/O.EXT.KSHV.FL.W.0091.000000T0000Z-000000T0000Z/
/JEFT2.1.ER.210520T1600Z.210523T0730Z.000000T0000Z.NO/
839 AM CDT Fri May 28 2021

...The Flood Warning is now in effect until further notice...

The Flood Warning continues for
  the Black Cypress Bayou At Jefferson.
* Until further notice.
* At 8:00 AM CDT Friday the stage was 13.1 feet.
* Flood stage is 13 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum bayou stage in the 24 hours ending 
  at 8:00 AM CDT Friday was 13.5 feet.
* Forecast...The Black Cypress Bayou is expected to rise to a crest 
  of 14.0 feet Sunday evening.
* Impact...At 13.0 feet, Lowland flooding will affect mainly timber 
  resources.


&&

LAT...LON 3297 9448 3275 9425 3275 9433 3278 9440
      3289 9450

$$

LAC017-TXC067-203-315-291515-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210602T0000Z/
/LCOL1.1.UU.210525T1720Z.210528T1200Z.210531T1200Z.NO/
839 AM CDT Fri May 28 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Tuesday evening.
* At 7:00 AM CDT Friday the pool stage was 172.3 feet.
* Flood pool stage is 172 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum pool stage in the 24 hours ending at 
  7:00 AM CDT Friday was 172.3 feet.
* Forecast...The lake is expected to fall below flood pool stage 
  Monday morning and continue falling to 171.6 feet Wednesday 
  morning.
* Impact...Minor lowland flooding of camps, access roads, and boat 
  ramps around the lake.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

08
582 
WGUS84 KSHV 290236
FLSSHV

Flood Statement
National Weather Service Shreveport LA
936 PM CDT Fri May 28 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

  Black Cypress Bayou At Jefferson affecting Marion and Cass 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-300245-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210602T0000Z/
/LCOL1.1.UU.210525T1720Z.210528T1200Z.210531T1200Z.NO/
936 PM CDT Fri May 28 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Tuesday evening.
* At 7:00 AM CDT Friday the stage was 172.0 feet.
* Flood stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 7:00 AM CDT Friday was 172.3 feet.
* Forecast...The lake is currently near a flat crest. A slow fall 
  will commence this weekend.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

TXC067-315-300245-
/O.CON.KSHV.FL.W.0091.000000T0000Z-000000T0000Z/
/JEFT2.1.ER.210520T1600Z.210523T0730Z.000000T0000Z.NO/
936 PM CDT Fri May 28 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Black Cypress Bayou At Jefferson.
* Until further notice.
* At 8:00 PM CDT Friday the stage was 12.9 feet.
* Flood stage is 13.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage just 
  after midnight tonight and continue rising to a crest of 14.0 feet 
  Sunday evening.
* Impact...At 13.0 feet, Lowland flooding will affect mainly timber 
  resources.


&&

LAT...LON 3297 9448 3275 9425 3275 9433 3278 9440
      3289 9450

$$

13
232 
WGUS84 KSHV 291458
FLSSHV

Flood Statement
National Weather Service Shreveport LA
958 AM CDT Sat May 29 2021

...The Flood Warning is extended for the following bayou in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish, and 
  Marion, Harrison, and Cass Counties.

...The Flood Warning continues for the following bayou in Texas...

  Black Cypress Bayou At Jefferson affecting Marion and Cass 
  Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-301630-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210603T0000Z/
/LCOL1.1.UU.000000T0000Z.210529T1800Z.210601T1200Z.NO/
958 AM CDT Sat May 29 2021

...The Flood Warning is now in effect until Wednesday evening...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Wednesday evening.
* At 9:40 AM CDT Saturday the pool stage was 172.2 feet.
* Flood pool stage is 172 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum pool stage in the 24 hours ending at 
  9:40 AM CDT Saturday was 172.2 feet.
* Forecast...The lake to fall below flood pool stage Tuesday morning.
* Impact...Minor lowland flooding of camps, access roads, and boat 
  ramps around the lake.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

TXC067-315-301630-
/O.EXT.KSHV.FL.W.0091.000000T0000Z-210603T0600Z/
/JEFT2.1.ER.210530T0600Z.210531T0000Z.210602T1200Z.NO/
958 AM CDT Sat May 29 2021

...The Flood Warning is now in effect until early Thursday morning...

The Flood Warning continues for
  the Black Cypress Bayou At Jefferson.
* Until late Wednesday night.
* At 9:00 AM CDT Saturday the stage was 12.7 feet.
* Flood stage is 13 feet.
* Minor flooding is forecast.
* Forecast...The Black Cypress Bayou is expected to rise above flood 
  stage by early Sunday morning to a crest of 13.5 feet Sunday 
  evening. It will then fall below flood stage Wednesday morning.
* Impact...At 14 feet, Minor lowland flooding.


&&

LAT...LON 3297 9448 3275 9425 3275 9433 3278 9440
      3289 9450

$$

08
256 
WGUS84 KSHV 300123
FLSSHV

Flood Statement
National Weather Service Shreveport LA
823 PM CDT Sat May 29 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-310130-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210603T0000Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210601T1200Z.NO/
823 PM CDT Sat May 29 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Wednesday evening.
* At 9:40 AM CDT Saturday the stage was 172.2 feet.
* Flood stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 9:40 AM CDT Saturday was 172.2 feet.
* Forecast...The river is expected to fall below flood stage Tuesday 
  morning and continue falling to 171.6 feet Thursday evening.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$
837 
WGUS84 KSHV 301337
FLSSHV

Flood Statement
National Weather Service Shreveport LA
837 AM CDT Sun May 30 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-311345-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210602T1200Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210601T0000Z.NO/
837 AM CDT Sun May 30 2021

...The Flood Warning is now in effect until Wednesday morning...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Wednesday morning.
* At 9:40 AM CDT Saturday the stage was 172.2 feet.
* Flood stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to fall below flood stage 
  tomorrow evening and continue falling to 171.3 feet Friday morning.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

25
805 
WGUS84 KSHV 310147
FLSSHV

Flood Statement
National Weather Service Shreveport LA
847 PM CDT Sun May 30 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-010200-
/O.CON.KSHV.FL.W.0104.000000T0000Z-210602T1200Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210601T0000Z.NO/
847 PM CDT Sun May 30 2021

...The Flood Warning remains in effect...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Wednesday morning.
* At 8:00 AM CDT Sunday the pool stage was 172.2 feet.
* Flood pool stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river pool stage in the 24 hours 
  ending at 8:00 AM CDT Sunday was 172.2 feet.
* Forecast...The lake is expected to fall below flood stage tomorrow 
  evening and continue falling to 171.3 feet Friday evening.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

10
033 
WGUS84 KSHV 311343
FLSSHV

Flood Statement
National Weather Service Shreveport LA
843 AM CDT Mon May 31 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-011345-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210602T0600Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210531T1800Z.NO/
843 AM CDT Mon May 31 2021

...The Flood Warning is now in effect until early Wednesday 
morning...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until late Tuesday night.
* At 6:30 AM CDT Monday the stage was 172.0 feet.
* Flood stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Forecast...The river is expected to fall below flood stage this 
  afternoon and continue falling to 171.1 feet Saturday morning.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

25
214 
WGUS84 KSHV 010117
FLSSHV

Flood Statement
National Weather Service Shreveport LA
817 PM CDT Mon May 31 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-012330-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210601T2330Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210531T1130Z.NO/
817 PM CDT Mon May 31 2021

...The Flood Warning is now in effect until tomorrow evening...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Tuesday evening.
* At 6:30 AM CDT Monday the pool stage was 172.0 feet.
* Flood pool stage is 172.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 6:30 AM CDT Monday was 172.0 feet.
* Forecast...The lake is expected to fall to 171.1 feet Saturday 
  evening.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

10
128 
WGUS84 KSHV 011409
FLSSHV

Flood Statement
National Weather Service Shreveport LA
909 AM CDT Tue Jun 1 2021

...Forecast flooding changed to Minor severity and increased in 
duration for the following rivers in Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish, and 
  Marion, Harrison, and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-021545-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210603T0600Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210601T1800Z.NO/
909 AM CDT Tue Jun 1 2021

...Forecast flooding changed to Minor severity and increased in 
duration until early Thursday morning...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until late Wednesday night.
* At 6:30 AM CDT Tuesday the pool stage was 172.0 feet.
* Flood pool stage is 172.0 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum pool stage in the 24 hours ending at 
  6:30 AM CDT Tuesday was 172.0 feet.
* Forecast...The lake is expected to fall below flood pool stage 
  this Tuesday  afternoon and continue falling to 171.1 feet Sunday 
  morning.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

08
347 
WGUS84 KSHV 020131
FLSSHV

Flood Statement
National Weather Service Shreveport LA
831 PM CDT Tue Jun 1 2021

...The Flood Warning continues for the following rivers in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo, Marion, Harrison 
  and Cass Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive cars through flooded areas.
Caution is urged when walking near riverbanks.
Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

A Flood Warning means that flooding is imminent or occurring. All 
interested parties should take necessary precautions immediately.

&&

For more hydrologic information, copy and paste the following website
address into your favorite web browser URL bar:
water.weather.gov/ahps2/index.php?wfo=shv


LAC017-TXC067-203-315-022330-
/O.EXT.KSHV.FL.W.0104.000000T0000Z-210602T2330Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210601T1130Z.NO/
831 PM CDT Tue Jun 1 2021

...The Flood Warning is now in effect until tomorrow evening...

The Flood Warning continues for
  the Big Cypress Bayou At Caddo Lake.
* Until Wednesday evening.
* At 6:30 AM CDT Tuesday the stage was 172.0 feet.
* Flood pool stage is 172.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 6:30 AM CDT Tuesday was 172.0 feet.
* Forecast...The lake is expected to fall below flood pool stage to 
  171.0 feet Sunday evening.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

10
402 
WGUS84 KSHV 021519
FLSSHV

Flood Statement
National Weather Service Shreveport LA
1019 AM CDT Wed Jun 2 2021

...The Flood Warning is cancelled for the following bayou in 
Louisiana...Texas...

  Big Cypress Bayou At Caddo Lake affecting Caddo Parish, and 
  Marion, Harrison, and Cass Counties.

LAC017-TXC067-203-315-021630-
/O.CAN.KSHV.FL.W.0104.000000T0000Z-210602T1519Z/
/LCOL1.1.UU.000000T0000Z.210529T1440Z.210601T1130Z.NO/
1019 AM CDT Wed Jun 2 2021

...The Flood Warning for the Big Cypress Bayou At Caddo Lake has 
been cancelled...

The Flood Warning is cancelled for
  the Big Cypress Bayou At Caddo Lake.
* At 7:00 AM CDT Wednesday the pool stage was 171.1 feet.
* Flood pool stage is 172 feet.
* Forecast...The lake is expected to remain steady below flood pool 
  stage near 171 feet.


&&

LAT...LON 3278 9418 3281 9400 3270 9392 3265 9404
      3267 9412

$$

08

What forecasters said that day

The local office's own words before this river flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this river flood warning went out at May 25, 6:42 AM CDT, 2 hours 28 minutes earlier.

Area forecast discussion, May 25, 6:42 AM CDT, 2 hours 28 minutes before
Area Forecast Discussion
National Weather Service Shreveport LA
642 AM CDT Tue May 25 2021

.AVIATION...
For the 25/12z TAFs, convection is moving northeast through
Southeast Oklahoma and Southwest Arkansas and should remain north
of the TAF sites for the next few hours. However, redevelopment is
expected by late morning or early afternoon across much of
Southeast Oklahoma and East Texas. The next round of showers and
thunderstorms will move eastward and will likely affect most TAF
sites with the exception of KMLU. The precip should once again
become confined to Southeast Oklahoma and Southwest Arkansas by
26/06z, but a complex of thunderstorms may move into the area
from the north late in the period.

Flight conditions will vary considerably. MVFR/IFR ceilings are
ongoing across portions of Western Louisiana and much of East
Texas, but the clouds should lift back into the VFR range by
25/15z. However, conditions will likely deteriorate again as
thunderstorms impact the terminals. VFR conditions are expected
after the precip ends, but light winds and a very moist low-level
airmass should result in low clouds and MVFR/IFR ceilings at most
terminals after 26/06z.

CN

&&

.PREV DISCUSSION... /issued 342 AM CDT Tue May 25 2021/

SHORT TERM.../Today through Wednesday/

The next in a long series of shortwave troughs, which is currently
over Western North Texas, will generally move easterly today and
over locations north of Interstate 30 by early this evening.
Scattered showers and thunderstorms are already ongoing across
Northern and Northeast Texas. An outflow boundary will also move
eastward today from an ongoing thunderstorm complex in Western
North Texas. The shortwave trough will provide enhanced vertical
ascent for convective development, while the outflow boundary
serves as a focus, especially along and north of the Interstate
30 corridor. Convective coverage should rapidly expand by late
this morning and early this afternoon across much of the area,
with high PoPs across most of the region west of a line roughly
from Toledo Bend Dam to Camden AR. Abundant deep layer moisture
remains in place, and the showers and storms will likely be
efficient rain producers. Storms in North Texas have already been
showing a tendency for training, and that will like remain an
issue through the day. Given the saturated soils in place, this
could lead to some isolated flash flooding concerns, especially in
Southeast Oklahoma, Southwest Arkansas, and Northeast Texas where
lift will be maximized from the shortwave trough and the outflow
boundary.

This round of convection should gradually diminish somewhat after
sunset with the loss of diurnal instability, but scattered
showers and thunderstorms will likely persist across the northern
half of the area through the overnight and early morning hours of
Wednesday. It's worth noting that the GFS and EMCWF are much more
aggressive with rain chances tonight through Wednesday compared to
the NAM, which is very dry. The GFS is the most bullish, but even
the ECMWF suggests thunderstorms will move into the area from
north to south as another convective complex dives southeast
across Oklahoma and into Texas. PoPs should generally remain
confined to areas north of Interstate 20 between midnight tonight
and noon Wednesday, before convection becomes more scattered in
nature across most of the area during peak afternoon heating
tomorrow. All three models show another weak shortwave moving
across Oklahoma during this time frame. The last several days have
demonstrated that it doesn't take a great deal for convection to
develop in this very moist and unstable airmass. Therefore, this
forecast favors more of a blend of the GFS and EMCWF for rain
chances on Wednesday versus the dry forecast of the NAM.

LONG TERM.../Wednesday Night through Monday Night/

Northwest flow arrives by the middle of the week, ushered in on the
backside of an upper-level low. This flow pattern, as it typically
does, will carry embedded shortwaves and convective systems across
the Red River Basin on the way to the Ark-La-Tex through the rest of
the week into Memorial Day Weekend. Plans made this holiday weekend
should take the daily chance of showers and thunderstorms into
account.

Until then, some subsidence aloft on the backside of the
upper-level low will keep storms mostly at bay on Thursday.
Simultaneously, a frontal boundary will cross the Great Plains by
Friday, becoming stationary and serving as an instigating mechanism
for a round of convective systems to propagate into our area with
showers and thunderstorms by Friday afternoon. This frontal boundary
will continue south overnight, potentially across the I-20 corridor,
with a more vigorous shortwave aloft set to arrive by Saturday
afternoon that delivers another chance of showers and thunderstorms
with it. This frontal boundary will continue to slowly waver about
the area on Sunday and linger across the Ark-La-Tex through Memorial
Day, however, backside subsidence will once again keep conditions
slightly drier as the holiday weekend ends.

Impacts to temperatures by this pesky frontal boundary will be
negligible as it arrives on Saturday with a moist, precipitation-
moderated air mass across our northern zones. Southerly surface flow
will persist through the rest of this week until then, maintaining
near average to just above average temperatures with highs in the
upper 80s and lows in the upper 60s. With moist soils, dew points in
the upper 60s and lower-70s are likely, keeping conditions muggy for
the foreseeable future. /16/

&&

.PRELIMINARY POINT TEMPS/POPS...
SHV  85  70  87  71 /  50  20  40   0
MLU  85  69  87  70 /  20  10  30   0
DEQ  79  68  85  69 /  80  20  40   0
TXK  81  70  86  71 /  70  30  30   0
ELD  85  68  87  68 /  40  30  40   0
TYR  79  70  86  71 /  60  20  20   0
GGG  81  69  85  69 /  70  20  30   0
LFK  81  69  87  69 /  60  20  30   0

&&

.SHV WATCHES/WARNINGS/ADVISORIES...
AR...None.
LA...None.
OK...None.
TX...None.
&&

09/16
Hazardous weather outlook, May 25, 4:11 AM CDT, 4 hours 59 minutes before
Hazardous Weather Outlook
National Weather Service Shreveport LA
411 AM CDT Tue May 25 2021

ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-
TXZ096-097-108>112-124>126-136>138-149>153-165>167-260915-
Sevier-Howard-Little River-Hempstead-Nevada-Miller-Lafayette-
Columbia-Union-Caddo-Bossier-Webster-Claiborne-Lincoln-De Soto-
Red River-Bienville-Jackson-Ouachita-Sabine-Natchitoches-Winn-
Grant-Caldwell-La Salle-McCurtain-Bowie-Franklin-Titus-Camp-
Morris-Cass-Wood-Upshur-Marion-Smith-Gregg-Harrison-Cherokee-Rusk-
Panola-Nacogdoches-Shelby-Angelina-San Augustine-
411 AM CDT Tue May 25 2021

This Hazardous Weather Outlook is for portions of south central
Arkansas, southwest Arkansas, north central Louisiana, northwest
Louisiana, southeast Oklahoma, east Texas and northeast Texas.

.DAY ONE...Today and Tonight...

Widespread showers and thunderstorms are likely today, especially across
East Texas and Southeast Oklahoma. A few storms could produce
gusty winds, locally heavy rain, and isolated flash flooding.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday...

Higher chances for showers and thunderstorms continue into Wednesday
as a weak upper level low moves across the region. Mostly dry
conditions are expected on Thursday, but scattered thunderstorms
will be possible daily, starting on Friday and continuing through
the Memorial Day Weekend. A few storms could produce gusty winds
and locally heavy rain, while isolated flash flooding cannot be
ruled out.

.SPOTTER INFORMATION STATEMENT...

Activation of emergency management personnel, amateur radio
operators, and storm spotters is not anticipated through tonight.

The office that day

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

IssuedProductOfficeCountiesLasted
May 25, 8:50 AM CDTRiver Flood WarningSHVPanola, Shelby21 days
May 25, 1:26 PM CDTSpecial Weather StatementSHVSmith, Upshur, Wood64 min
May 25, 2:30 PM CDTSpecial Weather StatementSHVGregg, Harrison, Marion, Panola, Rusk, Upshur60 min
May 25, 3:16 PM CDTSevere Thunderstorm WarningSHVHarrison, Panola44 min
May 25, 3:33 PM CDTSpecial Weather StatementSHVPanola42 min
May 25, 3:45 PM CDTSevere Thunderstorm WarningSHVHarrison45 min
May 25, 4:16 PM CDTAreal Flood AdvisorySHVAngelina, Cherokee, Nacogdoches119 min
May 25, 5:04 PM CDTAreal Flood AdvisorySHVAngelina, Nacogdoches, San Augustine116 min
May 25, 5:12 PM CDTAreal Flood AdvisorySHVNacogdoches, Panola, Shelby2 hr
May 25, 5:30 PM CDTSpecial Weather StatementSHVSabine45 min
May 25, 6:29 PM CDTAreal Flood AdvisorySHVSabine2 hr
May 25, 4:24 PM CDTSpecial Weather StatementSHVDe Soto36 min
May 25, 4:28 PM CDTSpecial Weather StatementSHVBossier32 min
May 25, 4:48 PM CDTSpecial Weather StatementSHVBienville, Bossier, Claiborne, Webster42 min
May 25, 5:29 PM CDTSpecial Weather StatementSHVBienville, Claiborne, Lincoln46 min
May 25, 5:34 PM CDTSpecial Weather StatementSHVRed River41 min
May 25, 6:11 PM CDTSpecial Weather StatementSHVRed River49 min
May 25, 6:12 PM CDTSpecial Weather StatementSHVJackson, Lincoln, Union48 min
May 25, 6:13 PM CDTSpecial Weather StatementSHVNatchitoches47 min

Nearby

River Flood Warnings in Texas, 2021River Flood Warnings in Louisiana, 2021Every river 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; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.