Alert archive / Texas / River Flood Warnings in 2021

River Flood Warning 35, NWS Houston/Galveston, TX

May 19, 2021Colorado County, Jackson County, Wharton County, Texas

NWS Houston/Galveston, TX issued this river flood warning at May 19, 2021, 2:39 AM CDT for Colorado County, Jackson County, Wharton County, Texas. It took effect at May 19, 2021, 2:42 PM CDT. It was in force for 3 days.

The area

The outline as issued.

The facts

Issued: May 19, 2021, 2:39 AM CDT (07:39 UTC)
In effect from: May 19, 2021, 2:42 PM CDT
Expired: May 22, 2021, 4:26 PM CDT
In force: 3 days
Issued by: NWS Houston/Galveston, TX
Area: Storm-based polygon
Flood severity: Major

Counties Colorado County, TX, Jackson County, TX, Wharton County, TX

The radar

The Houston radar (KHGX), 144 km from the middle of the area, began a volume at 07:41 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 Sandy Creek near Cordele (CODT2). The gauge peaked at 16.95 ft at May 20, 2021, 4:00 PM CDT.

Action stage: 13 ft
Minor stage: 18 ft
Moderate stage: 19 ft
Major stage: 21 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 08164450, 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.

545 
WGUS44 KHGX 190739
FLWHGX

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Flood Warning
National Weather Service Houston/Galveston TX
239 AM CDT Wed May 19 2021

...The National Weather Service in Houston/Galveston TX has issued a 
Flood Warning for the following rivers in Texas...

  Sandy Creek near Cordele affecting Wharton, Jackson and Colorado 
  Counties.

For the Sandy Creek...including Cordele...Major flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with interests along these streams should keep alert to 
rising water and take all precautions to protect their property. Do 
not drive or walk into flooded areas the depth and water velocity 
could be too great for you to cross safely. Motorists should avoid 
any water covered roads and find an alternate route. Livestock and 
equipment should be removed from the flood plain immediately. Stay 
tuned to NOAA Weather radio or other news sources for further 
updates.

Additional information is available at www.weather.gov.

The next statement will be issued this afternoon at 245 PM CDT.

&&


TXC089-239-481-191945-
/O.NEW.KHGX.FL.W.0035.210519T1942Z-210522T2126Z/
/CODT2.3.ER.210519T1942Z.210520T0600Z.210522T0925Z.NO/
239 AM CDT Wed May 19 2021

The National Weather Service in League City has issued a

* Flood Warning for
  the Sandy Creek near Cordele.
* From this afternoon to Saturday afternoon.
* At 2:15 AM CDT Wednesday the stage was 12.9 feet.
* Flood stage is 18.0 feet.
* Major flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  afternoon to a crest of 21.8 feet just after midnight tonight. It 
  will then fall below flood stage early Saturday morning.
* Impact...At 21.0 feet, Major lowland flooding begins with 
  widespread inundation of the floodplain. The creek is one third of 
  a mile wide at FM 710 in the vicinity of the gage. Primary roads 
  and bridges are inundated and dangerous to motorists. Livestock 
  are isolated and potentially drowned and equipment in the 
  floodplain likely destroyed.
* Flood History...This crest compares to a previous crest of 20.8 
  feet on 09/01/2001.


&&

LAT...LON 2925 9644 2916 9649 2906 9652 2906 9662
      2916 9659 2925 9654

$$

3 follow-up statements

242 
WGUS84 KHGX 191458
FLSHGX

Flood Statement
National Weather Service Houston/Galveston TX
958 AM CDT Wed May 19 2021

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

  Long King Creek near Livingston affecting San Jacinto and Polk 
  Counties.

  Sandy Creek near Cordele affecting Wharton, Jackson and Colorado 
  Counties.

  West Mustang Creek near Ganado affecting Wharton and Jackson 
  Counties.

  Navidad River near Speaks affecting Lavaca and Jackson Counties.

  Trinity River at Liberty affecting Liberty County.

  Trinity River near Moss Bluff affecting Chambers and Liberty 
  Counties.

  East Fork San Jacinto near New Caney affecting Harris, Liberty 
  and Montgomery Counties.

For the Trinity River...including Crockett, Riverside, Romayor, 
Goodrich, Liberty, Moss Bluff...Moderate flooding is forecast.
For the Long King Creek...including Livingston...Minor flooding is 
forecast.
For the East Fork San Jacinto River...including Cleveland, New 
Caney...Moderate flooding is forecast.
For the Sandy Creek...including Cordele...Major flooding is forecast.
For the Navidad River...including Sublime, Speaks, Morales, Strane 
Park...Major flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with interests along these streams should keep alert to 
rising water and take all precautions to protect their property. Do 
not drive or walk into flooded areas the depth and water velocity 
could be too great for you to cross safely. Motorists should avoid 
any water covered roads and find an alternate route. Livestock and 
equipment should be removed from the flood plain immediately. Stay 
tuned to NOAA Weather radio or other news sources for further 
updates.

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 900 PM CDT.

&&


TXC373-407-200200-
/O.EXT.KHGX.FL.W.0039.000000T0000Z-210520T0200Z/
/LIVT2.1.ER.210519T1705Z.210519T1800Z.210519T2000Z.NO/
958 AM CDT Wed May 19 2021

...The Flood Warning is now in effect until late this evening...

The Flood Warning continues for
  the Long King Creek near Livingston.
* Until this evening.
* At 9:30 AM CDT Wednesday the stage was 18.4 feet.
* Flood stage is 19.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage this 
  afternoon to a crest of 19.2 feet this afternoon. It will then 
  fall below flood stage late this afternoon.
* Impact...At 19.0 feet, At levels above 19 feet minor lowland 
  flooding begins as water escapes the main channel of the creek.
* Flood History...This crest compares to a previous crest of 19.2 
  feet on 12/18/1995.


&&

LAT...LON 3092 9480 3072 9490 3057 9490 3057 9500
      3072 9501 3092 9491

$$

TXC239-285-200300-
/O.EXT.KHGX.FL.W.0034.000000T0000Z-210521T2140Z/
/SPAT2.2.ER.210520T0300Z.210520T1800Z.210521T0940Z.NO/
958 AM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Navidad River near Speaks.
* Until Friday afternoon.
* At 9:00 AM CDT Wednesday the stage was 21.3 feet.
* Flood stage is 24.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 27.4 feet early tomorrow afternoon. It 
  will then fall below flood stage early Friday morning.
* Impact...At 27.0 feet, Moderate lowland flooding begins with the 
  approaches to the FM 530 bridge inundated and the gage cut off. 
  large areas of the floodplain are cut off potentially isolated and 
  drowning cattle.
* Flood History...This crest compares to a previous crest of 27.7 
  feet on 04/20/2016.


&&

LAT...LON 2937 9669 2932 9664 2920 9669 2920 9679
      2932 9677 2937 9681

$$

TXC089-239-481-200300-
/O.EXT.KHGX.FL.W.0035.210519T2139Z-210521T0453Z/
/CODT2.3.ER.210519T2139Z.210520T0600Z.210520T1653Z.NO/
958 AM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Sandy Creek near Cordele.
* From this afternoon to Thursday evening.
* At 9:15 AM CDT Wednesday the stage was 14.9 feet.
* Flood stage is 18.0 feet.
* Major flooding is forecast.
* Forecast...The river will rise above flood stage late this 
  afternoon to 21.3 feet just after midnight tonight. It will then 
  fall below flood stage late tomorrow morning to 14.0 feet and 
  begin rising again Friday evening. It will rise to 14.6 feet early 
  Saturday morning. It will then fall to 8.5 feet and begin rising 
  again early Monday morning. It will then rise again but remain 
  below flood stage.
* Impact...At 21.0 feet, Major lowland flooding begins with 
  widespread inundation of the floodplain. The creek is one third of 
  a mile wide at FM 710 in the vicinity of the gage. Primary roads 
  and bridges are inundated and dangerous to motorists. Livestock 
  are isolated and potentially drowned and equipment in the 
  floodplain likely destroyed.
* Flood History...This crest compares to a previous crest of 20.8 
  feet on 09/01/2001.


&&

LAT...LON 2925 9644 2916 9649 2906 9652 2906 9662
      2916 9659 2925 9654

$$

TXC239-481-200300-
/O.EXT.KHGX.FL.W.0038.210520T0200Z-210521T1708Z/
/GNDT2.1.ER.210520T0200Z.210520T1200Z.210521T0508Z.NO/
958 AM CDT Wed May 19 2021

...The Flood Warning is now in effect until early Friday afternoon...

The Flood Warning continues for
  the West Mustang Creek near Ganado.
* From this evening to Friday afternoon.
* At 8:45 AM CDT Wednesday the stage was 18.0 feet.
* Flood stage is 20.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this evening to a crest of 21.2 feet tomorrow morning. It will 
  then fall below flood stage early Friday morning.
* Impact...At 21.0 feet, Moderate lowland flooding begins as water 
  reaches the bottom concrete of the Highway 59 bridge. Secondary 
  roads near the river are inundated and closed and livestock in the 
  floodplain are threatened.
* Flood History...This crest compares to a previous crest of 21.3 
  feet on 09/20/1979.


&&

LAT...LON 2918 9636 2907 9642 2903 9642 2903 9652
      2907 9652 2918 9646

$$

TXC291-200300-
/O.CON.KHGX.FL.W.0027.000000T0000Z-000000T0000Z/
/LBYT2.2.ER.210517T2322Z.210522T1200Z.000000T0000Z.NO/
958 AM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Trinity River at Liberty.
* Until further notice.
* At 9:15 AM CDT Wednesday the stage was 26.9 feet.
* Flood stage is 26.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 9:15 AM CDT Wednesday was 26.9 feet.
* Forecast...The river is expected to rise to a crest of 28.9 feet 
  Saturday morning.
* Impact...At 29.0 feet, Major lowland flooding begins as homes in 
  several subdivisions above Liberty begin flooding. Extensive 
  flooding over much of Liberty County can be expected with each 
  incremental rise in the river.
* Flood History...This crest compares to a previous crest of 28.9 
  feet on 11/18/1998.

&&


             Fld   Observed           Forecasts (7 am CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Trinity River
Liberty      26.0  26.9  Wed 9 am CDT 27.3  28.4  28.9         





&&

LAT...LON 3027 9475 2996 9470 2996 9487 3027 9489

$$

TXC071-291-200300-
/O.CON.KHGX.FL.W.0021.000000T0000Z-000000T0000Z/
/MBFT2.1.ER.210515T1400Z.210523T1800Z.000000T0000Z.NO/
958 AM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Trinity River near Moss Bluff.
* Until further notice.
* At 9:30 AM CDT Wednesday the stage was 13.4 feet.
* Flood stage is 12.2 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 9:30 AM CDT Wednesday was 13.4 feet.
* Forecast...The river is expected to rise to a crest of 13.8 feet 
  early tomorrow afternoon. It will then rise to 14.2 feet early 
  Sunday afternoon. Additional rises are possible thereafter.
* Impact...At 15.2 feet, Moderate lowland flooding begins in the 
  vicinity of the gage.
* Flood History...This crest compares to a previous crest of 14.2 
  feet on 10/22/1994.

&&


             Fld   Observed           Forecasts (7 am CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Trinity River
Moss Bluff   12.2  13.4  Wed 9 am CDT 13.7  13.7  13.9         





&&

LAT...LON 2996 9470 2979 9466 2979 9479 2996 9487

$$

TXC201-291-339-200300-
/O.CON.KHGX.FL.W.0036.210519T2136Z-000000T0000Z/
/NCET2.2.ER.210519T2136Z.210523T0900Z.000000T0000Z.NO/
958 AM CDT Wed May 19 2021

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

The Flood Warning continues for
  the East Fork San Jacinto near New Caney.
* From this afternoon until further notice.
* At 9:00 AM CDT Wednesday the stage was 55.9 feet.
* Flood stage is 58.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon and continue rising to a crest of 63.2 feet early 
  Sunday morning.
* Impact...At 62.0 feet, Moderate lowland flooding begins with 
  secondary roads near the river inundated, including FM 1485 west 
  of the river.
* Flood History...This crest compares to a previous crest of 63.1 
  feet on 06/12/1987.


&&

LAT...LON 3024 9515 3024 9504 3007 9510 3007 9520
      3014 9517

$$

923 
WGUS84 KHGX 191954
FLSHGX

Flood Statement
National Weather Service Houston/Galveston TX
254 PM CDT Wed May 19 2021

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

  Sandy Creek near Cordele affecting Wharton, Jackson and Colorado 
  Counties.

For the Sandy Creek...including Cordele...Moderate flooding is 
forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with interests along these streams should keep alert to 
rising water and take all precautions to protect their property. Do 
not drive or walk into flooded areas the depth and water velocity 
could be too great for you to cross safely. Motorists should avoid 
any water covered roads and find an alternate route. Livestock and 
equipment should be removed from the flood plain immediately. Stay 
tuned to NOAA Weather radio or other news sources for further 
updates.

Additional information is available at www.weather.gov.

The next statement will be issued late tonight at 300 AM CDT.

&&


TXC089-239-481-200800-
/O.EXT.KHGX.FL.W.0035.210519T2231Z-210521T0331Z/
/CODT2.2.ER.210519T2231Z.210520T0600Z.210520T1531Z.NO/
254 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Sandy Creek near Cordele.
* Until Thursday evening.
* At 2:15 PM CDT Wednesday the stage was 15.5 feet.
* Flood stage is 18.0 feet.
* Moderate flooding is forecast.
* Forecast...The river is expected to rise above flood stage late 
  this afternoon to a crest of 19.6 feet just after midnight 
  tonight. It will then fall below flood stage late tomorrow morning.
* Impact...At 19.0 feet, Moderate lowland flooding begins. Several 
  roads and bridges in the floodplain are flooded and dangerous and 
  livestock in the floodplain are threatened.
* Flood History...This crest compares to a previous crest of 19.6 
  feet on 03/18/1997.


&&

LAT...LON 2925 9644 2916 9649 2906 9652 2906 9662
      2916 9659 2925 9654

$$

003 
WGUS84 KHGX 200234
FLSHGX

Flood Statement
National Weather Service Houston/Galveston TX
934 PM CDT Wed May 19 2021

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

  Navidad River at Morales affecting Lavaca and Jackson Counties.

  Navidad River near Speaks affecting Lavaca and Jackson Counties.

  Navidad River at Strane Park affecting Jackson County.

  Navidad River at Sublime affecting Lavaca County.

...The Flood Warning is cancelled for the following rivers in 
Texas...

  Little Cypress Creek NEAR Becker Road affecting Harris County.

  Sandy Creek near Cordele affecting Wharton, Jackson and Colorado 
  Counties.

  West Mustang Creek near Ganado affecting Wharton and Jackson 
  Counties.

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

  Tres Palacios River near Midfield affecting Wharton and Matagorda 
  Counties.

  East Mustang Creek near Louise affecting Wharton and Jackson 
  Counties.

  Lavaca River near Edna affecting Jackson County.

  Trinity River at Riverside affecting Walker, San Jacinto, Polk 
  and Trinity Counties.

  Trinity River at Liberty affecting Liberty County.

  Trinity River near Moss Bluff affecting Chambers and Liberty 
  Counties.

  East Fork San Jacinto near New Caney affecting Harris, Liberty 
  and Montgomery Counties.

  San Bernard River near Sweeny affecting Brazoria County.

  San Bernard River near Boling affecting Wharton, Fort Bend and 
  Brazoria Counties.

For the Trinity River...including Crockett, Riverside, Goodrich, 
Romayor, Liberty, Moss Bluff...Moderate flooding is forecast.
For the East Fork San Jacinto River...including New Caney, 
Cleveland...Minor flooding is forecast.
For the Little Cypress Creek...including Cypress-Rosehill Road, 
Kluge Road, Becker Road...Minor flooding is forecast.
For the Tres Palacios River...including Midfield...Major flooding is 
forecast.
For the Navidad River...including Sublime, Speaks, Morales, Strane 
Park...Major flooding is forecast.
For the Lavaca River...including Komensky, Breslau, Hallettsville, 
Edna...Moderate flooding is forecast.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons with interests along these streams should keep alert to 
rising water and take all precautions to protect their property. Do 
not drive or walk into flooded areas the depth and water velocity 
could be too great for you to cross safely. Motorists should avoid 
any water covered roads and find an alternate route. Livestock and 
equipment should be removed from the flood plain immediately. Stay 
tuned to NOAA Weather radio or other news sources for further 
updates.

Motorists should not attempt to drive around barricades or drive 
cars through flooded areas.

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

Additional information is available at www.weather.gov.

The next statement will be issued tomorrow morning by 1030 PM CDT.

&&


TXC201-200345-
/O.CAN.KHGX.FL.W.0041.000000T0000Z-210520T0234Z/
/LCHT2.1.ER.210519T1210Z.210520T0000Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

...The Flood Warning for the Little Cypress Creek NEAR Becker Road 
has been cancelled...

The Flood Warning is cancelled for
  the Little Cypress Creek NEAR Becker Road.
* At 3:50 PM CDT Wednesday the stage was 195.2 feet.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 3:50 PM CDT Wednesday was 195.2 feet.
* Forecast...The river is expected to remain steady above flood 
  stage at 195.6 feet.


&&

LAT...LON 3003 9581 3003 9579 3002 9579 3002 9581

$$

TXC089-239-481-200345-
/O.CAN.KHGX.FL.W.0035.000000T0000Z-210520T0234Z/
/CODT2.2.ER.210519T2231Z.210520T0600Z.210520T1531Z.NO/
934 PM CDT Wed May 19 2021

...The Flood Warning for the Sandy Creek near Cordele has been 
cancelled...

The Flood Warning is cancelled for
  the Sandy Creek near Cordele.
* At 8:15 PM CDT Wednesday the stage was 16.2 feet.
* Forecast...The river will rise to 17.2 feet tomorrow morning. It 
  will then fall to 11.1 feet and begin rising again early Sunday 
  morning. It will rise to 11.4 feet Sunday evening. It will then 
  fall again and remain below flood stage.


&&

LAT...LON 2925 9644 2916 9649 2906 9652 2906 9662
      2916 9659 2925 9654

$$

TXC239-481-200345-
/O.CAN.KHGX.FL.W.0038.210520T0600Z-210520T0234Z/
/GNDT2.1.ER.210520T0600Z.210520T1800Z.210521T0320Z.NO/
934 PM CDT Wed May 19 2021

...The Flood Warning for the West Mustang Creek near Ganado has been 
cancelled...

The Flood Warning is cancelled for
  the West Mustang Creek near Ganado.
* At 8:45 PM CDT Wednesday the stage was 18.3 feet.
* Forecast...The river is expected to rise to a crest of 18.7 feet 
  early tomorrow afternoon.


&&

LAT...LON 2918 9636 2907 9642 2903 9642 2903 9652
      2907 9652 2918 9646

$$

TXC239-285-201445-
/O.EXT.KHGX.FL.W.0040.000000T0000Z-210522T1332Z/
/MRAT2.2.ER.210519T1752Z.210521T1200Z.210522T0132Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Navidad River at Morales.
* Until Saturday morning.
* At 8:00 PM CDT Wednesday the stage was 29.7 feet.
* Flood stage is 29.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:00 PM CDT Wednesday was 29.7 feet.
* Forecast...The river will rise to 31.4 feet Friday morning. It 
  will then fall below flood stage Friday evening to 12.4 feet and 
  begin rising again Saturday evening. It will rise to 16.7 feet 
  early Monday morning. It will then fall again and remain below 
  flood stage.
* Impact...At 30.0 feet, Moderate lowland flooding occurs as water 
  inundates County Road 283. Livestock could be cut off and should 
  be removed from the flood plain.
* Flood History...This crest compares to a previous crest of 31.6 
  feet on 05/29/2007.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Navidad River
Morales      29.0  29.7  Wed 8 pm CDT 31.1  29.9  12.4         





&&

LAT...LON 2920 9679 2920 9669 2909 9665 2909 9675

$$

TXC239-201445-
/O.EXT.KHGX.FL.W.0037.000000T0000Z-210522T1634Z/
/EDNT2.2.ER.210519T0931Z.210521T0000Z.210522T0434Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Lavaca River near Edna.
* Until Saturday morning.
* At 8:15 PM CDT Wednesday the stage was 23.7 feet.
* Flood stage is 21.0 feet.
* Minor flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:15 PM CDT Wednesday was 23.7 feet.
* Forecast...The river will rise to 25.6 feet early Friday morning. 
  It will then fall below flood stage late Friday evening to 15.3 
  feet and begin rising again early Sunday morning. It will rise to 
  19.1 feet Monday morning. It will then fall again and remain below 
  flood stage.
* Impact...At 25.0 feet, Moderate lowland flooding begins with the 
  river one third of a mile wide near the Highway 59 bridge flooding 
  secondary roads and bridges along the river. Livestock are 
  isolated and potentially drown.
* Flood History...This crest compares to a previous crest of 25.6 
  feet on 09/10/2010.

&&


            Fld   Observed           Forecasts (7 pm CDT)     
Location    Stg   Stg   Day/Time     Thu   Fri   Sat          

Lavaca River
Edna        21.0  23.7  Wed 8 pm CDT 25.6  22.6  15.4         





&&

LAT...LON 2908 9675 2908 9664 2886 9654 2886 9674

$$

TXC239-285-201445-
/O.EXT.KHGX.FL.W.0034.000000T0000Z-210521T2130Z/
/SPAT2.1.ER.210520T0730Z.210521T0000Z.210521T0930Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Navidad River near Speaks.
* Until Friday afternoon.
* At 8:00 PM CDT Wednesday the stage was 23.0 feet.
* Flood stage is 24.0 feet.
* Minor flooding is forecast.
* Forecast...The river will rise above flood stage just after 
  midnight tonight to 26.1 feet tomorrow evening. It will then fall 
  below flood stage early Friday morning to 7.5 feet and begin 
  rising again early Saturday afternoon. It will rise to 12.5 feet 
  Sunday evening. It will then fall again and remain below flood 
  stage.
* Impact...At 27.0 feet, Moderate lowland flooding begins with the 
  approaches to the FM 530 bridge inundated and the gage cut off. 
  large areas of the floodplain are cut off potentially isolated and 
  drowning cattle.
* Flood History...This crest compares to a previous crest of 26.3 
  feet on 10/14/1997.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Navidad River
Speaks       24.0  23.0  Wed 8 pm CDT 26.1  11.3  7.8          





&&

LAT...LON 2937 9669 2932 9664 2920 9669 2920 9679
      2932 9677 2937 9681

$$

TXC239-201445-
/O.EXT.KHGX.FL.W.0033.000000T0000Z-210522T2324Z/
/LSNT2.2.ER.210519T0912Z.210521T1200Z.210522T1124Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Navidad River at Strane Park.
* Until Saturday evening.
* At 8:15 PM CDT Wednesday the stage was 26.1 feet.
* Flood stage is 24.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:15 PM CDT Wednesday was 26.1 feet.
* Forecast...The river will rise to 27.8 feet early Friday 
  afternoon. It will then fall below flood stage Saturday morning to 
  11.3 feet and begin rising again early Sunday morning. It will 
  rise to 14.3 feet Monday morning. It will then fall again and 
  remain below flood stage.
* Impact...At 26.0 feet, Moderate lowland flooding begins 
  threatening livestock and property in the river channel. The right 
  approach to the County Road 401 bridge is closed making travel 
  difficult.
* Flood History...This crest compares to a previous crest of 27.8 
  feet on 04/20/2009.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Navidad River
Strane Park  24.0  26.1  Wed 8 pm CDT 27.5  27.6  11.5         





&&

LAT...LON 2909 9665 2901 9649 2901 9662 2909 9675

$$

TXC285-201445-
/O.EXT.KHGX.FL.W.0032.000000T0000Z-210521T0620Z/
/SBMT2.3.ER.210519T0728Z.210520T0600Z.210520T1820Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Navidad River at Sublime.
* Until late Thursday night.
* At 8:00 PM CDT Wednesday the stage was 28.4 feet.
* Flood stage is 24.0 feet.
* Major flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:00 PM CDT Wednesday was 28.4 feet.
* Forecast...The river is expected to rise to a crest of 29.0 feet 
  just after midnight tonight. It will then fall below flood stage 
  early tomorrow afternoon.
* Impact...At 26.0 feet, Major lowland flooding begins as two 
  channels under the Highway 90A bridge merges becoming one channel 
  several hundered yards wide. The lowest homes in the floodplain 
  downstream near Vienna and in Jackson County are threatened.
* Flood History...This crest compares to a previous crest of 29.1 
  feet on 06/08/1997.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Navidad River
Sublime      24.0  28.4  Wed 8 pm CDT 18.9  9.0   10.8         





&&

LAT...LON 2957 9678 2946 9676 2937 9669 2937 9681
      2946 9686 2957 9688

$$

TXC239-481-200900-
/O.EXT.KHGX.FL.W.0029.000000T0000Z-210520T0900Z/
/LMCT2.1.ER.210519T0442Z.210519T0945Z.210520T0300Z.NO/
934 PM CDT Wed May 19 2021

...The Flood Warning is now in effect until late tonight...

The Flood Warning continues for
  the East Mustang Creek near Louise.
* Until late tonight.
* At 8:30 PM CDT Wednesday the stage was 19.3 feet.
* Flood stage is 19.0 feet.
* Minor flooding is occurring.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 PM CDT Wednesday was 20.9 feet.
* Forecast...The river is expected to fall below flood stage late 
  this evening and continue falling to 7.1 feet Monday evening.
* Impact...At 19.0 feet, Minor lowland begins as water spills into 
  the flood plain downstream of the gage.
* Flood History...This crest compares to a previous crest of 19.2 
  feet on 01/27/2001.

&&


                  Fld   Observed           Forecasts (7 pm CDT)     
Location          Stg   Stg   Day/Time     Thu   Fri   Sat          

East Mustang Creek
Louise            19.0  19.3  Wed 8 pm CDT 15.1  10.6  7.5          





&&

LAT...LON 2915 9632 2907 9635 2903 9642 2903 9652
      2907 9645 2915 9642

$$

TXC321-481-201445-
/O.EXT.KHGX.FL.W.0023.000000T0000Z-210522T1500Z/
/MTPT2.3.ER.210516T2300Z.210520T1200Z.210522T0300Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Tres Palacios River near Midfield.
* Until Saturday morning.
* At 8:30 PM CDT Wednesday the stage was 29.1 feet.
* Flood stage is 24.0 feet.
* Major flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 PM CDT Wednesday was 29.1 feet.
* Forecast...The river is expected to rise to a crest of 29.5 feet 
  tomorrow morning. It will then fall below flood stage late Friday 
  evening.
* Impact...At 29.0 feet, Major lowland flooding begins as both 
  approaches to the FM 456 bridge are cut off and water is over the 
  road on FM 1468 near Clemville, FM 2431 east of Midfield, and FM 
  2853 southeast of Blessing with several homes in the El Dorado 
  Country subdivision upstream and Oak Grove and Tres Palacios Oaks 
  downstream flooded.
* Flood History...This crest compares to a previous crest of 29.5 
  feet on 07/27/2006.

&&


                   Fld   Observed           Forecasts (7 pm CDT)     
Location           Stg   Stg   Day/Time     Thu   Fri   Sat          

Tres Palacios River
Midfield           24.0  29.1  Wed 8 pm CDT 29.2  24.4  21.1         





&&

LAT...LON 2905 9609 2892 9612 2884 9610 2884 9620
      2892 9622 2905 9620

$$

TXC201-291-339-201445-
/O.CON.KHGX.FL.W.0036.000000T0000Z-000000T0000Z/
/NCET2.1.ER.210520T2100Z.210523T1800Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the East Fork San Jacinto near New Caney.
* Until further notice.
* At 8:00 PM CDT Wednesday the stage was 57.1 feet.
* Flood stage is 58.0 feet.
* Minor flooding is forecast.
* Forecast...The river is expected to rise above flood stage 
  tomorrow afternoon and continue rising to a crest of 60.4 feet 
  early Sunday afternoon.
* Impact...At 62.0 feet, Moderate lowland flooding begins with 
  secondary roads near the river inundated, including FM 1485 west 
  of the river.
* Flood History...This crest compares to a previous crest of 60.5 
  feet on 09/14/2008.

&&


  Fld   Observed           Forecasts (10 pm CDT)
Location             Stg   Stg   Day/Time     Thu   Fri   Sat

East Fork San Jacinto
New Caney            58.0  57.1  Wed 8 pm CDT 58.2  59.3  60.2





&&

LAT...LON 3024 9515 3024 9504 3007 9510 3007 9520
      3014 9517

$$

TXC373-407-455-471-201445-
/O.CON.KHGX.FL.W.0031.000000T0000Z-000000T0000Z/
/RVRT2.1.ER.210519T0850Z.210525T0000Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Trinity River at Riverside.
* Until further notice.
* At 8:30 PM CDT Wednesday the stage was 134.3 feet.
* Flood stage is 133.5 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 PM CDT Wednesday was 134.3 feet.
* Forecast...The river is expected to rise to 135.1 feet Monday 
  evening. Additional rises are possible thereafter.
* Impact...At 135.0 feet, Minor lowland flooding continues as 
  significant backwater up Thomas Lake floods the lowest areas in 
  the Green Rich Shore Subdivision in Walker County with the boat 
  ramp completely inundated. The lowest lying areas in the Deep 
  River Plantation Subdivision and FM 980 northwest of Riverside are 
  threatened.
* Flood History...This crest compares to a previous crest of 135.1 
  feet on 10/30/2009.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Trinity River
Riverside    133.5 134.3 Wed 8 pm CDT 134.6 134.7 134.9        





&&

LAT...LON 3097 9584 3096 9562 3093 9528 3082 9528
      3087 9562 3088 9584

$$

TXC039-201445-
/O.CON.KHGX.FL.W.0030.000000T0000Z-000000T0000Z/
/OCNT2.2.ER.210519T0439Z.210520T1200Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the San Bernard River near Sweeny.
* Until further notice.
* At 8:45 PM CDT Wednesday the stage was 15.2 feet.
* Flood stage is 7.0 feet.
* Moderate flooding is occurring and major flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:45 PM CDT Wednesday was 15.2 feet.
* Forecast...The river is expected to rise to a crest of 16.4 feet 
  tomorrow morning.
* Impact...At 16.0 feet, Water begins inundating the boat ramp off 
  of FM 521. Pan American Road and Riverglen Street become 
  threatened.
* Flood History...This crest compares to a previous crest of 15.8 
  feet on 05/12/2019.

&&


                 Fld   Observed           Forecasts (7 pm CDT)     
Location         Stg   Stg   Day/Time     Thu   Fri   Sat          

San Bernard River
Sweeny           7.0   15.2  Wed 8 pm CDT 15.2  13.2  12.7         





&&

LAT...LON 2913 9566 2902 9554 2888 9543 2888 9553
      2902 9565 2913 9577

$$

TXC039-157-481-201445-
/O.CON.KHGX.FL.W.0028.000000T0000Z-000000T0000Z/
/BOLT2.2.ER.210518T1218Z.210523T1800Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the San Bernard River near Boling.
* Until further notice.
* At 8:46 PM CDT Wednesday the stage was 27.6 feet.
* Flood stage is 18.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:46 PM CDT Wednesday was 27.6 feet.
* Forecast...The river will rise to 28.4 feet tomorrow morning. It 
  will then fall to 25.2 feet and begin rising again Friday morning. 
  It will rise to 31.6 feet early Sunday afternoon. It will then 
  fall again but remain above flood stage.
* Impact...At 27.0 feet, There is widespread moderate lowland 
  flooding upstream from the gage with significant backwater 
  flooding up West Bernard Creek and Peach Creek in Wharton County 
  and low lying areas in the El Lobo subdivision are threatened. 
  Backwater flooding up Snake Creek in Fort Bend County threatens 
  low areas in the Tierra Grande subdivision.
* Flood History...This crest compares to a previous crest of 31.5 
  feet on 06/21/2015.


&&

LAT...LON 2940 9592 2930 9584 2913 9566 2913 9577
      2930 9595 2940 9605

$$

TXC291-201445-
/O.CON.KHGX.FL.W.0027.000000T0000Z-000000T0000Z/
/LBYT2.2.ER.210517T2322Z.210523T0600Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Trinity River at Liberty.
* Until further notice.
* At 8:15 PM CDT Wednesday the stage was 27.1 feet.
* Flood stage is 26.0 feet.
* Moderate flooding is occurring and moderate flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:15 PM CDT Wednesday was 27.1 feet.
* Forecast...The river is expected to rise to 28.0 feet early Sunday 
  morning. Additional rises are possible thereafter.
* Impact...At 27.0 feet, Moderate lowland flooding begins as roads 
  into several outlying communities above Liberty are closed with 
  residents in 5 or 6 subdivisions cut off if not evacuated.
* Flood History...This crest compares to a previous crest of 28.0 
  feet on 01/19/2007.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Trinity River
Liberty      26.0  27.1  Wed 8 pm CDT 27.4  27.7  27.9         





&&

LAT...LON 3027 9475 2996 9470 2996 9487 3027 9489

$$

TXC071-291-201445-
/O.CON.KHGX.FL.W.0021.000000T0000Z-000000T0000Z/
/MBFT2.1.ER.210515T1400Z.210523T0000Z.000000T0000Z.NO/
934 PM CDT Wed May 19 2021

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

The Flood Warning continues for
  the Trinity River near Moss Bluff.
* Until further notice.
* At 8:30 PM CDT Wednesday the stage was 13.5 feet.
* Flood stage is 12.2 feet.
* Minor flooding is occurring and minor flooding is forecast.
* Recent Activity...The maximum river stage in the 24 hours ending 
  at 8:30 PM CDT Wednesday was 13.5 feet.
* Forecast...The river is expected to rise to a crest of 13.6 feet 
  tomorrow morning. It will then rise to 13.7 feet Saturday evening. 
  Additional rises are possible thereafter.
* Impact...At 12.2 feet, Minor lowland flooding begins in the 
  vicinity of the gage.
* Flood History...This crest compares to a previous crest of 13.8 
  feet on 11/18/1998.

&&


             Fld   Observed           Forecasts (7 pm CDT)     
Location     Stg   Stg   Day/Time     Thu   Fri   Sat          

Trinity River
Moss Bluff   12.2  13.5  Wed 8 pm CDT 13.6  13.5  13.7         





&&

LAT...LON 2996 9470 2979 9466 2979 9479 2996 9487

$$

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 Houston/Galveston, TX wrote its last area forecast discussion before this river flood warning went out at May 18, 8:25 PM CDT, 6 hours 14 minutes earlier.

Area forecast discussion, May 18, 8:25 PM CDT, 6 hours 14 minutes before

Area Forecast Discussion
National Weather Service Houston/Galveston TX
825 PM CDT Tue May 18 2021

...Heavy rain/flooding threat is high through the night and brief
period for tornadoes through around midnight...

.SHORT TERM [Tonight through Wednesday]...
Line of storms from around Madisonville to Brenham to Columbus to
near Edna moving slowly eastward. High CAPE and high helicity
environment with a tornado threat will be diminishing after 9 pm.
Low level jet strengthening through the evening the threat may
transition to very intense rainfall rates of 3-4" per hour.
Extensive flooding in the areas around Moulton to Flatonia to La
Grange with these storms as they were coalescing and spinning up.
The issue is how progressive will the system be...guidance is
split with a slower move to the northeast or it becomes cold pool
dominant and pushes out to the southeast. Very difficult call at
this point.

3-4"/hour rainfall rates can be extremely dangerous and street
flooding will take place in minutes and if the system slows down
the streams/rivers/bayous will respond with very rapid rises.

Flash Flood Watch and Tornado Watch in effect.

If you are going to be out and about tonight be prepared to stay
put because roads could become treacherous. If you don't NEED to
go out don't! 45

&&

.AVIATION [00Z TAF Issuance]...
MVFR-VFR early this evening becoming solidly MVFR after 05z and
persisting into 10z. Temporary conditions with gusty winds and
severely restricted visibility with the heavy rain. Break should
occur after 10z and into the early morning before the next round
starts to approach in the late morning/early afternoon.
45

&&

.PREV DISCUSSION /Issued 318 PM CDT Tue May 18 2021/...

.LONG TERM [Thursday Through Tuesday]...

Forecast models remain a bit inconsistent on when they expect
Thursday morning's rain to taper off. Either way, rain showers will
linger throughout the day with greater than 2" PWATs persisting and
a passing shortwave. The WPC has placed our southeastern counties
(including Harris County) in a moderate risk for excessive
rainfall for Thursday and the rest of the CWA in a slight risk.
This is due to the rainfall received in these areas over the past
couple of days, so it will not take much to get flooding to occur
in these spots. If you're looking forward to an extended break
from the rain, unfortunately you'll have to wait until Saturday.
Surface high pressure moves in and ushers in drier air over the
region. PoPs linger for a little while longer over our western
counties through Saturday night as the dry air will flow in from
east to west.

The good thing about the lingering moisture and cloud cover will be
cooler afternoon temperatures through the end of the work week.
MaxT values on Thursday and Friday will be in the upper 70s/low
80s. However, MinT values will be warmer as well due to the
prevention of radiational cooling underneath the cloud cover. Low
temperatures throughout the end of the week will be in the upper
60s/low 70s. As the clouds clear out in the latter half of the
weekend, we will start to feel the effects of an upper-level ridge
as a warming trend persists into early next week. High
temperatures will reach the mid 80s by Sunday and upper 80s by
Monday. PWATs increase going into early next week once again due
to persisting onshore flow. With the warmer temperatures in the
afternoon hours, this could prompt the development of afternoon
showers/thunderstorms mainly west of I-45 for now. It's a bit far
out to pinpoint exactly where these will take place, but the more
favorable moisture and instability on Monday and Tuesday will be
in our western counties. There is a bit of uncertainty on the
strength of a few shortwaves wrapping around the western side of a
mid-level high, so PoPs out west on Monday/Tuesday afternoon are
only around 20% for now.

Batiste

.MARINE...

Earlier this afternoon, wind gusts exceeding 30 knots was observed
in the bays due to the passage of a meso-low. This led to an
increase in water levels in Galveston Bay which prompted the
issuance of a Coastal Flood Advisory. These water levels will
gradually decrease as we head into low tide this evening.
Moderate southerly to southeasterly winds will continue to
prevail, so caution level to advisory level conditions in the bays
and the Gulf waters will persist through at least Wednesday
night/Thursday morning. Resultingly, offshore seas will elevate to
7-8 feet by Wednesday evening. The other big story will be
periods of showers and thunderstorms, some of which may contain
locally heavy rain. Wednesday night into Thursday morning will be
the main window for shower/storms, but rain chances remain in the
forecast into the weekend.

Strong Rip Currents will persist through Thursday night due to
the prevailing moderate onshore flow. Another coastal hazard we
will be watching closely over the next few days during high tides
is the potential for additional coastal flooding. During
Wednesday and Thursday morning's high tides, water levels could
exceed 3 feet so a Coastal Flood Advisory could become necessary
again.

Batiste

.HYDROLOGY...

If heavy rain develops tonight, we need to watch for rises on the
East Fork of the San Jacinto, The Trinity River, the Lavaca-Navidad
and the San Bernard basins. Currently, it looks like the Brazos and
Colorado river watersheds can handle the rain expected tonight and
Wednesday. In Harris County, Spring Creek and Cypress Creek remain
high and will need to be watched if heavy rain develops. The WGRFC
is using 72 hour rainfall totals to produce their forecasts so these
forecasts could change depending on where the rain falls tonight and
Wednesday. Also releases from area reservoirs will play a role in
streamflow and water levels. If you live near a watershed, best
advice I can give you, is keep up with the forecast and be prepared
to move to higher ground should heavy rain and flooding develop.
43

&&

.PRELIMINARY POINT TEMPS/POPS...

College Station (CLL)  69  78  65  79  70 / 100  80  80  70  40
Houston (IAH)          73  80  68  80  72 /  80  90  90  80  40
Galveston (GLS)        75  81  72  78  74 /  70  70  80  80  50

&&

.HGX WATCHES/WARNINGS/ADVISORIES...

TX...Flash Flood Watch through Thursday morning for the following
     zones: Austin...Bolivar Peninsula...Brazoria
     Islands...Brazos...Burleson...Chambers...Coastal
     Brazoria...Coastal Galveston...Coastal Harris...Coastal
     Jackson...Coastal Matagorda...Colorado...Fort
     Bend...Galveston Island...Grimes...Houston...Inland
     Brazoria...Inland Galveston...Inland Harris...Inland
     Jackson...Inland Matagorda...Madison...Matagorda
     Islands...Montgomery...Northern Liberty...Polk...San
     Jacinto...Southern
     Liberty...Trinity...Walker...Waller...Washington...Wharton.

     Coastal Flood Advisory until 1 AM CDT Wednesday for the
     following zones: Bolivar Peninsula...Coastal
     Galveston...Coastal Harris...Galveston Island.

     High Rip Current Risk through late Thursday night for the
     following zones: Bolivar Peninsula...Brazoria
     Islands...Galveston Island...Matagorda Islands.

GM...Small Craft Advisory until 1 AM CDT Wednesday for the following
     zones: Galveston Bay...Matagorda Bay.

     SMALL CRAFT SHOULD EXERCISE CAUTION through Thursday morning for
     the following zones: Galveston Bay...Matagorda Bay.

     Small Craft Advisory until 7 AM CDT Thursday for the following
     zones: Coastal waters from Freeport to Matagorda Ship
     Channel TX out 20 NM...Coastal waters from High Island to
     Freeport TX out 20 NM...Waters from Freeport to Matagorda
     Ship Channel TX from 20 to 60 NM...Waters from High Island
     to Freeport TX from 20 to 60 NM.

&&

SHORT TERM...45
RADAR/DSS/HYDROLOGY...Fowler/43

In the hours before

Local storm report, May 18, 9:02 PM CDT, 5 hours 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
902 PM CDT TUE MAY 18 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0742 PM     TSTM WND DMG     7 S WEIMAR              29.60N 96.79W
05/18/2021                   COLORADO           TX   LAW ENFORCEMENT

            TREES DOWN NEAR FM 532.

&&

Local storm report, May 18, 9:06 PM CDT, 5 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
906 PM CDT TUE MAY 18 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0845 PM     FUNNEL CLOUD     9 NE GANADO             29.14N 96.42W
05/18/2021                   WHARTON            TX   EMERGENCY MNGR

            LAW ENFORCEMENT POSSIBLE TORNADO OR FUNNEL
            CLOUD IN HEAVY RAIN. NO CONFIRMATION YET.

&&

KP

Special weather statement, May 18, 10:11 PM CDT, 4 hours 28 minutes before

Special Weather Statement
National Weather Service Houston/Galveston TX
1011 PM CDT Tue May 18 2021

TXZ178-199-200-213-300-190400-
San Jacinto TX-Northern Liberty TX-Southern Liberty TX-
Inland Harris TX-Montgomery TX-
1011 PM CDT Tue May 18 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN MONTGOMERY...
SOUTHERN SAN JACINTO...LIBERTY AND NORTHEASTERN HARRIS COUNTIES UNTIL
1100 PM CDT...

At 1011 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Panorama Village to near Porter Heights to
near Spring. Movement was east at 40 mph.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Conroe, Humble, Liberty, Cleveland, Dayton, Willis, Kingwood, Spring,
The Woodlands, Oak Ridge North, Panorama Village, Shenandoah,
Splendora, Patton Village, Roman Forest, Woodbranch, Cut And Shoot,
Ames, Daisetta and Hardin.

A Tornado Watch remains in effect until 200 AM CDT for southeastern
Texas.

LAT...LON 3047 9482 3026 9467 3000 9462 3002 9545
      3024 9550 3040 9555
TIME...MOT...LOC 0311Z 267DEG 35KT 3039 9544 3023 9531 3007 9532

Special weather statement, May 18, 10:37 PM CDT, 4 hours 2 minutes before

Special Weather Statement
National Weather Service Houston/Galveston TX
1037 PM CDT Tue May 18 2021

TXZ213-214-226-227-236>238-313-336>338-436>438-190430-
Inland Brazoria TX-Coastal Matagorda TX-Inland Matagorda TX-
Chambers TX-Matagorda Islands TX-Inland Galveston TX-
Coastal Galveston TX-Brazoria Islands TX-Galveston Island TX-
Coastal Harris TX-Wharton TX-Inland Harris TX-Fort Bend TX-
Coastal Brazoria TX-
1037 PM CDT Tue May 18 2021

...SIGNIFICANT WEATHER ADVISORY FOR EASTERN WHARTON...GALVESTON...
SOUTHEASTERN FORT BEND...BRAZORIA...WEST CENTRAL CHAMBERS...MATAGORDA
AND SOUTHEASTERN HARRIS COUNTIES UNTIL 1130 PM CDT...

At 1037 PM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from Houston Ship Channel to near South Texas
Nuclear Plant. Movement was northeast at 25 mph.

Pea size hail and winds in excess of 40 mph will be possible with
these storms.

Locations impacted include...
Pasadena, Pearland, League City, Sugar Land, Baytown, Missouri City,
Galveston Island West End, Texas City, Matagorda, Friendswood, La
Porte, Deer Park, Lake Jackson, Alvin, Angleton, Dickinson, Stafford,
Bay City, South Houston and Bellaire.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storms, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with these storms.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

A Tornado Watch remains in effect until 200 AM CDT for southeastern
Texas.

LAT...LON 2867 9624 2973 9556 2981 9468 2873 9533
TIME...MOT...LOC 0337Z 246DEG 22KT 2973 9520 2876 9602

Special weather statement, May 19, 12:04 AM CDT, 2 hours 35 minutes before

Special Weather Statement
National Weather Service Houston/Galveston TX
1204 AM CDT Wed May 19 2021

TXZ164-179-200-190545-
Northern Liberty TX-Polk TX-Trinity TX-
1204 AM CDT Wed May 19 2021

...SPECIAL WEATHER STATEMENT...

At 1203 AM CDT, Doppler radar was tracking a strong thunderstorm near
Alabama-Coushatta Reservation, or 8 miles southwest of Chester,
moving northeast at 30 mph.

Winds in excess of 30 mph will be possible with this storm.

Locations impacted include...
Livingston, Corrigan, Seven Oaks, Alabama-Coushatta Reservation,
northeastern West Livingston, Leggett, Segno and Moscow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 3049 9473 3086 9512 3115 9485 3111 9475
      3109 9466 3110 9465 3106 9456 3106 9457
      3101 9466 3049 9454
TIME...MOT...LOC 0503Z 232DEG 27KT 3082 9468

Special weather statement, May 19, 12:44 AM CDT, 1 hour 55 minutes before

Special Weather Statement
National Weather Service Houston/Galveston TX
1244 AM CDT Wed May 19 2021

TXZ235-236-335-336-190630-
Coastal Matagorda TX-Inland Matagorda TX-Coastal Jackson TX-
Inland Jackson TX-
1244 AM CDT Wed May 19 2021

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN JACKSON AND WEST
CENTRAL MATAGORDA COUNTIES UNTIL 130 AM CDT...

At 1244 AM CDT, Doppler radar was tracking a strong thunderstorm over
Point Comfort, or 8 miles northeast of Port Lavaca, moving northeast
at 20 mph.

Penny size hail and winds in excess of 30 mph will be possible with
this storm.

Locations impacted include...
Palacios, Point Comfort, La Ward, Alamo Beach, Olivia, Schicke Point
and Port Alto.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

A Tornado Watch remains in effect until 200 AM CDT for south central
and southeastern Texas.

LAT...LON 2857 9650 2857 9656 2859 9659 2863 9662
      2864 9661 2865 9663 2868 9664 2869 9666
      2871 9665 2872 9665 2872 9666 2891 9640
      2886 9627 2870 9620 2856 9648
TIME...MOT...LOC 0544Z 231DEG 19KT 2869 9651

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 18, 7:19 PM CDT	Special Weather Statement	HGX	Washington	41 min
May 18, 7:33 PM CDT	Tornado Warning	HGX	Colorado	27 min
May 18, 8:01 PM CDT	Special Weather Statement	HGX	Austin, Colorado	59 min
May 18, 8:21 PM CDT	Areal Flood Advisory	HGX	Austin, Colorado, Fort Bend, Washington, Wharton	114 min
May 18, 8:24 PM CDT	Tornado Warning	HGX	Austin, Colorado, Fort Bend, Waller, Wharton	36 min
May 18, 8:28 PM CDT	Special Weather Statement	HGX	Jackson	47 min
May 18, 8:40 PM CDT	Areal Flood Advisory	HGX	Austin, Brazos, Burleson, Grimes, Harris, Houston and 5 more	3 hr
May 18, 8:41 PM CDT	Severe Thunderstorm Warning	HGX	Austin, Colorado, Fort Bend, Waller, Wharton	49 min
May 18, 8:52 PM CDT	Flash Flood Warning	HGX	Austin, Burleson, Colorado, Waller, Washington, Wharton	113 min
May 18, 9:10 PM CDT	Severe Thunderstorm Warning	HGX	Fort Bend, Harris, Waller	35 min
May 18, 9:12 PM CDT	Tornado Warning	HGX	Fort Bend, Harris, Waller	33 min
May 18, 9:25 PM CDT	Areal Flood Advisory	HGX	Brazoria, Colorado, Fort Bend, Jackson, Matagorda, Wharton	3 hr
May 18, 9:25 PM CDT	Severe Thunderstorm Warning	HGX	Grimes, Harris, Montgomery, Waller	35 min
May 18, 9:28 PM CDT	Areal Flood Advisory	HGX	Austin, Brazoria, Fort Bend, Harris, Montgomery, Waller	3 hr
May 18, 9:43 PM CDT	Flash Flood Warning	HGX	Austin, Brazoria, Fort Bend, Galveston, Harris, Montgomery and 2 more	3 hr
May 18, 9:44 PM CDT	Severe Thunderstorm Warning	HGX	Harris, Montgomery	31 min
May 18, 9:44 PM CDT	Tornado Warning	HGX	Fort Bend, Harris	31 min
May 18, 9:51 PM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Fort Bend, Galveston, Harris	39 min
May 18, 10:01 PM CDT	Special Marine Warning	HGX		29 min
May 18, 10:11 PM CDT	Special Weather Statement	HGX	Liberty, Montgomery	49 min
May 18, 10:22 PM CDT	Special Marine Warning	HGX		83 min
May 18, 10:31 PM CDT	Tornado Warning	HGX	Chambers, Harris, Liberty	29 min
May 18, 10:37 PM CDT	Special Weather Statement	HGX	Brazoria, Matagorda	53 min
May 18, 10:43 PM CDT	Areal Flood Warning	HGX	Austin, Brazos, Burleson, Colorado, Grimes, Waller and 2 more	2 hr
May 18, 11:12 PM CDT	Flash Flood Warning	HGX	Brazoria, Jackson, Matagorda, Wharton	3 hr
May 18, 11:25 PM CDT	Areal Flood Advisory	HGX	Chambers, Liberty, Polk	3 hr
May 18, 11:30 PM CDT	Areal Flood Advisory	HGX	Brazoria, Galveston, Harris	3 hr
May 18, 11:42 PM CDT	Areal Flood Advisory	HGX	Montgomery, San Jacinto	3 hr
May 18, 11:43 PM CDT	Special Marine Warning	HGX		77 min
May 18, 11:55 PM CDT	Special Marine Warning	HGX		65 min
May 18, 11:57 PM CDT	River Flood Warning	HGX	Jackson, Wharton	45 hr
May 19, 12:03 AM CDT	River Flood Warning	HGX	Brazoria	21 days
May 19, 12:04 AM CDT	Special Weather Statement	HGX	Polk	41 min
May 19, 12:18 AM CDT	Areal Flood Warning	HGX	Jackson, Wharton	3 hr
May 19, 12:21 AM CDT	Flash Flood Warning	HGX	Jackson, Matagorda	3 hr
May 19, 12:25 AM CDT	Special Marine Warning	HGX		65 min
May 19, 12:33 AM CDT	Areal Flood Warning	HGX	Austin, Brazoria, Fort Bend, Galveston, Harris, Montgomery and 2 more	12 min
May 19, 12:33 AM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Matagorda	27 min
May 19, 12:38 AM CDT	River Flood Warning	HGX	Polk, San Jacinto, Trinity, Walker	32 days
May 19, 12:44 AM CDT	Special Weather Statement	HGX	Jackson	46 min
May 19, 12:56 AM CDT	Special Marine Warning	HGX		64 min
May 19, 12:58 AM CDT	Areal Flood Advisory	HGX	Brazoria, Galveston	3 hr
May 19, 12:58 AM CDT	Special Marine Warning	HGX		32 min
May 19, 1:07 AM CDT	Areal Flood Warning	HGX	Montgomery, Waller	3 hr
May 19, 1:26 AM CDT	Special Marine Warning	HGX		34 min
May 19, 1:53 AM CDT	Special Marine Warning	HGX		52 min
May 19, 2:10 AM CDT	River Flood Warning	HGX	Lavaca	43 hr
May 19, 2:10 AM CDT	River Flood Warning	HGX	Jackson	21 days
May 19, 2:10 AM CDT	River Flood Warning	HGX	Jackson, Lavaca	4 days
May 19, 2:40 AM CDT	River Flood Warning	HGX	Harris, Liberty, Montgomery	21 days
May 19, 2:57 AM CDT	River Flood Warning	HGX	Jackson	9 days
May 19, 2:57 AM CDT	River Flood Warning	HGX	Jackson, Wharton	68 hr
May 19, 3:12 AM CDT	Areal Flood Warning	HGX	Waller	15 hr
May 19, 3:19 AM CDT	Special Marine Warning	HGX		116 min
May 19, 3:25 AM CDT	Severe Thunderstorm Warning	HGX	Brazoria, Colorado, Fort Bend, Jackson, Matagorda, Wharton	50 min
May 19, 3:26 AM CDT	Flash Flood Warning	HGX	Jackson, Matagorda	10 hr
May 19, 3:27 AM CDT	Small Craft Advisory	HGX		33 min
May 19, 3:38 AM CDT	Areal Flood Advisory	HGX	Brazoria, Matagorda	14 hr
May 19, 4:13 AM CDT	Areal Flood Warning	HGX	Montgomery, Waller	12 hr
May 19, 6:06 AM CDT	River Flood Warning	HGX	Polk, San Jacinto	9 hr
May 19, 9:58 AM CDT	River Flood Warning	HGX	Jackson, Lavaca	4 days
May 19, 1:13 PM CDT	Areal Flood Warning	HGX	Jackson, Matagorda	6 hr
May 19, 1:15 PM CDT	Areal Flood Advisory	HGX	Jackson, Matagorda	6 hr
May 19, 4:04 PM CDT	River Flood Warning	HGX	Harris	21 days
May 19, 4:16 PM CDT	Areal Flood Warning	HGX	Montgomery, Waller	5 hr
May 19, 6:16 PM CDT	Areal Flood Warning	HGX	Waller	3 hr

Nearby

River Flood Warnings in Texas, 2021 Every 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.