Alert archive / Texas / Rip Current Statements in 2021

Rip Current Statement 52, NWS Houston/Galveston, TX

October 10, 2021Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Oct 10, 2021, 9:01 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Oct 10, 2021, 9:01 AM CDT (14:01 UTC)
Expired
Oct 10, 2021, 8:00 PM CDT
In force
11 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 14:01 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 12:00Z, 2.0 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 12:00Z on 2021-10-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2591 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 12:00Z on 2021-10-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 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
2591 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
508 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
184 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

282 
WHUS44 KHGX 101401
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
901 AM CDT Sun Oct 10 2021

TXZ436>439-102215-
/O.NEW.KHGX.RP.S.0052.211010T1401Z-211011T0100Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
901 AM CDT Sun Oct 10 2021

...HIGH RIP CURRENT RISK IN EFFECT UNTIL 8 PM CDT THIS EVENING...

* WHAT...Dangerous rip currents.

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

* WHEN...Until 8 PM CDT 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.

&&

$$
1 follow-up statement
375 
WHUS44 KHGX 102344
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
644 PM CDT Sun Oct 10 2021

TXZ436>439-110745-
/O.NEW.KHGX.BH.S.0009.211011T0100Z-211011T1000Z/
/O.CON.KHGX.RP.S.0052.000000T0000Z-211011T0100Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
644 PM CDT Sun Oct 10 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 8 PM CDT THIS
EVENING...
...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 5 AM CDT MONDAY...

* WHAT...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. 

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

* WHEN...For the High Rip Current Risk, until 8 PM CDT this 
  evening. For the Beach Hazards Statement, until 5 AM CDT 
  Monday.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water. Flooding of lots, parks, and roads 
  with only isolated road closures expected.

* ADDITIONAL DETAILS...The High Rip Current Risk will be replaced for the
  Beach Hazards Statement to include minor coastal flooding around times of 
  high tides tonight. 


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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 8:04 AM CDTSmall Craft AdvisoryHGX24 hr
Oct 10, 6:44 PM CDTBeach Hazards StatementHGXBrazoria, Galveston, Matagorda10 hr

Nearby

Rip Current Statements in Texas, 2021Every rip current 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.