Alert archive / Texas / Rip Current Statements in 2023

Rip Current Statement 19, NWS Houston/Galveston, TX

April 11, 2023Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Apr 11, 2023, 8:57 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Apr 11, 2023, 8:57 AM CDT (13:57 UTC)
Expired
Apr 11, 2023, 9:00 PM CDT
In force
12 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 13:56 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 2023-04-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 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 2023-04-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 square meters per square second.1939587897Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
890 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

355 
WHUS44 KHGX 111357
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
857 AM CDT Tue Apr 11 2023

TXZ436>439-120200-
/O.NEW.KHGX.RP.S.0019.230411T1357Z-230412T0200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
857 AM CDT Tue Apr 11 2023

...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...

* WHAT...Dangerous rip currents.

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

* WHEN...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. 
Do not 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
265 
WHUS44 KHGX 112024
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
324 PM CDT Tue Apr 11 2023

TXZ436>439-120200-
/O.CON.KHGX.RP.S.0019.000000T0000Z-230412T0200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
324 PM CDT Tue Apr 11 2023

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 9 PM CDT THIS EVENING...

* WHAT...Dangerous rip currents.

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

* WHEN...Until 9 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. 
Do not 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
Apr 11, 8:27 AM CDTSpecial Marine WarningHGX33 min
Apr 11, 9:28 AM CDTSpecial Marine WarningHGX32 min
Apr 11, 9:59 AM CDTSpecial Marine WarningHGX14 min

Nearby

Rip Current Statements in Texas, 2023Every rip current statement in 2023

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.