Alert archive / Texas / Beach Hazards Statements in 2021

Beach Hazards Statement 8, NWS Houston/Galveston, TX

August 29, 2021Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this beach hazards statement at Aug 29, 2021, 3:14 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It took effect at Aug 29, 2021, 7:00 AM CDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Aug 29, 2021, 3:14 AM CDT (08:14 UTC)
In effect from
Aug 29, 2021, 7:00 AM CDT
Expired
Aug 30, 2021, 7:00 AM CDT
In force
24 hr
Issued by
NWS Houston/Galveston, TX

Counties Brazoria County, TX, Galveston County, TX, Matagorda County, TX

The radar

The Houston radar (KHGX), 54 km from the middle of the area, began a volume at 08:14 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 8.2 hours before the alert went out and 241 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 00:00Z on 2021-08-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1170 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2021-08-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -2 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1170 J/kg
Mixed-layer CIN
-31 J/kg
Mixed-layer LCL
1179 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
29 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

231 
WHUS44 KHGX 290814
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
314 AM CDT Sun Aug 29 2021

TXZ436>439-291615-
/O.NEW.KHGX.BH.S.0008.210829T1200Z-210830T1200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
314 AM CDT Sun Aug 29 2021

...BEACH HAZARDS STATEMENT IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH MONDAY MORNING...

* WHAT...Dangerous rip currents, elevated surf and minor coastal 
  flooding due to elevated tides and moderate wave run-up along 
  area beaches around times of high tide as expected as Hurricane Ida 
  makes landfall over the Louisiana coast today.

* WHERE...Matagorda Islands, Brazoria Islands, Galveston Island 
  and Bolivar Peninsula.

* WHEN...From 7 AM CDT this morning through Monday morning.

* IMPACTS...Rip currents can sweep even the best swimmers away from shore 
  into deeper water. Surf will be elevated on area beaches. Around times 
  of high tide, waves will run up area beaches further than normal.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
4 follow-up statements
929 
WHUS44 KHGX 291512
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
1012 AM CDT Sun Aug 29 2021

TXZ436>439-292315-
/O.CON.KHGX.BH.S.0008.000000T0000Z-210830T1200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
1012 AM CDT Sun Aug 29 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY
MORNING...

* WHAT...Dangerous rip currents, elevated surf and minor coastal 
  flooding due to elevated tides and moderate wave run-up along 
  area beaches around times of high tide as expected as 
  Hurricane Ida makes landfall over the Louisiana coast today.

* WHERE...Matagorda Islands, Brazoria Islands, Galveston Island 
  and Bolivar Peninsula.

* WHEN...From 7 AM CDT this morning through Monday morning.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Surf will be elevated on area 
  beaches. Around times of high tide, waves will run up area 
  beaches further than normal.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
265 
WHUS44 KHGX 292011
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
311 PM CDT Sun Aug 29 2021

TXZ436>439-301200-
/O.CON.KHGX.BH.S.0008.000000T0000Z-210830T1200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
311 PM CDT Sun Aug 29 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY
MORNING...

* WHAT...Dangerous rip currents, elevated surf and minor coastal 
  flooding due to elevated tides and moderate wave run-up along 
  area beaches around times of high tide are expected as 
  Hurricane Ida moves past the Louisiana coast today.

* WHERE...Matagorda Islands, Brazoria Islands, Galveston Island 
  and Bolivar Peninsula.

* WHEN...From 7 AM CDT this morning through Monday morning.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Surf will be elevated on area 
  beaches. Around times of high tide, waves will run up area 
  beaches further than normal.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
734 
WHUS44 KHGX 300924
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
424 AM CDT Mon Aug 30 2021

TXZ436>439-301800-
/O.NEW.KHGX.RP.S.0049.210830T1200Z-210831T0000Z/
/O.CON.KHGX.BH.S.0008.000000T0000Z-210830T1200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
424 AM CDT Mon Aug 30 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 7 AM CDT THIS
MORNING...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...

* WHAT...For the Beach Hazards Statement, strong rip currents and
  minor coastal flooding due to elevated tides and moderate wave 
  run-up along area beaches around times of high tide are 
  expected. For the High Rip Current Risk, dangerous rip currents 
  expected through this evening.

* WHERE...Matagorda Islands, Brazoria Islands, Galveston Island 
  and Bolivar Peninsula Counties.

* WHEN...For the Beach Hazards Statement, until 7 AM CDT this 
  morning. For the High Rip Current Risk, through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. 



PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
715 
WHUS44 KHGX 301206
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
706 AM CDT Mon Aug 30 2021

TXZ436>439-302015-
/O.EXP.KHGX.BH.S.0008.000000T0000Z-210830T1200Z/
/O.CON.KHGX.RP.S.0049.000000T0000Z-210831T0000Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
706 AM CDT Mon Aug 30 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...BEACH HAZARDS STATEMENT HAS EXPIRED...

* WHAT...Dangerous rip currents.

* WHERE...Matagorda Islands, Brazoria Islands, Galveston Island 
  and Bolivar Peninsula Counties.

* WHEN...For the Beach Hazards Statement, until 7 AM CDT this 
  morning. For the High Rip Current Risk, through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and
float. Don't swim against the current. If able, swim in a
direction following the shoreline. If unable to escape, face the
shore and call or wave for help.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 10:57 PM CDTSmall Craft AdvisoryHGX24 hr

Nearby

Beach Hazards Statements in Texas, 2021Every beach hazards statement in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.