Alert archive / Texas / Rip Current Statements in 2021

Rip Current Statement 8, NWS Houston/Galveston, TX

April 3, 2021Brazoria County, Galveston County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Apr 3, 2021, 9:40 AM CDT for Brazoria County, Galveston County, Texas. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Apr 3, 2021, 9:40 AM CDT (14:40 UTC)
Expired
Apr 3, 2021, 9:00 PM CDT
In force
11 hr
Issued by
NWS Houston/Galveston, TX

Counties Brazoria County, TX, Galveston County, TX

The radar

The Houston radar (KHGX), 27 km from the middle of the area, began a volume at 14:41 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 nearest sounding before it

Lake Charles Mun, LA (KLCH), launched 12:00Z, 2.7 hours before the alert went out and 210 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, Lake Charles Mun, LA at 12:00Z on 2021-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lake Charles Mun, LA at 12:00Z on 2021-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1838 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

672 
WHUS44 KHGX 031440
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
940 AM CDT Sat Apr 3 2021

TXZ437>439-032245-
/O.NEW.KHGX.RP.S.0008.210403T1440Z-210404T0200Z/
Brazoria Islands-Galveston Island-Bolivar Peninsula-
940 AM CDT Sat Apr 3 2021

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

* WHAT...Dangerous rip currents.

* WHERE...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. 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
575 
WHUS44 KHGX 032031
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
331 PM CDT Sat Apr 3 2021

TXZ437>439-040200-
/O.CON.KHGX.RP.S.0008.000000T0000Z-210404T0200Z/
Brazoria Islands-Galveston Island-Bolivar Peninsula-
331 PM CDT Sat Apr 3 2021

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

* WHAT...Dangerous rip currents.

* WHERE...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. 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.

&&

$$

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.