Alert archive / Texas / Beach Hazards Statements in 2021

Beach Hazards Statement 10, NWS Houston/Galveston, TX

October 13, 2021Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this beach hazards statement at Oct 13, 2021, 9:37 PM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 21 hr.

The area

The counties it named.

The facts

Issued
Oct 13, 2021, 9:37 PM CDT (02:37 UTC)
Expired
Oct 14, 2021, 7:00 PM CDT
In force
21 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 02:42 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, 2.6 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 2021-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1651 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 2021-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 square meters per square second.19395878Sfc1 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
1651 J/kg
Mixed-layer CIN
-85 J/kg
Mixed-layer LCL
867 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
95 m²/s²
Significant tornado parameter
0.7
Supercell composite
7.0

Open this sounding in Storm Lab

The text

As transmitted.

838 
WHUS44 KHGX 140237
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
937 PM CDT Wed Oct 13 2021

TXZ436>439-141200-
/O.NEW.KHGX.BH.S.0010.211014T0237Z-211015T0000Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
937 PM CDT Wed Oct 13 2021

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THURSDAY EVENING...

* WHAT...Strong rip currents and elevated water levels.

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

* WHEN...Through Thursday evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Elevated water levels could 
  produce minor coastal flooding at times of high tide.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
3 follow-up statements
521 
WHUS44 KHGX 140901
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
401 AM CDT Thu Oct 14 2021

TXZ436>439-150000-
/O.CON.KHGX.BH.S.0010.000000T0000Z-211015T0000Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
401 AM CDT Thu Oct 14 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* WHAT...Strong rip currents and elevated water levels.

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

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Elevated water levels could 
  produce minor coastal flooding at times of high tide.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
017 
WHUS44 KHGX 141514
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
1014 AM CDT Thu Oct 14 2021

TXZ436>439-150000-
/O.CON.KHGX.BH.S.0010.000000T0000Z-211015T0000Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
1014 AM CDT Thu Oct 14 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* WHAT...Strong rip currents and elevated water levels.

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

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Elevated water levels could 
  produce minor coastal flooding at times of high tide.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$
087 
WHUS44 KHGX 142016
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
316 PM CDT Thu Oct 14 2021

TXZ436>439-150000-
/O.CON.KHGX.BH.S.0010.000000T0000Z-211015T0000Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
316 PM CDT Thu Oct 14 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* WHAT...Strong rip currents and elevated water levels.

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

* WHEN...Through this evening.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Elevated water levels could 
  produce minor coastal flooding at times of high tide.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 9:38 PM CDTSmall Craft AdvisoryHGX12 hr
Oct 14, 12:23 AM CDTSpecial Weather StatementHGXBurleson52 min
Oct 14, 5:03 AM CDTSpecial Weather StatementHGXWashington42 min
Oct 14, 5:16 AM CDTSevere Thunderstorm WarningHGXColorado44 min
Oct 14, 5:41 AM CDTAreal Flood AdvisoryHGXAustin, Colorado, Washington3 hr
Oct 14, 8:51 AM CDTAreal Flood AdvisoryHGXAustin, Colorado114 min

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.