Alert archive / Texas / Rip Current Statements in 2021

Rip Current Statement 36, NWS Houston/Galveston, TX

June 22, 2021Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jun 22, 2021, 3:46 AM 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
Jun 22, 2021, 3:46 AM CDT (08:46 UTC)
Expired
Jun 23, 2021, 1:00 AM 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 08:45 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, 8.8 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 2021-06-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3900 joules per kilogram.LCLEL10008507005003002001001 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 2021-06-22The 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
3900 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
744 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-2 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
-0.2
Supercell composite
-1.1

Open this sounding in Storm Lab

The text

As transmitted.

289 
WHUS44 KHGX 220846
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
346 AM CDT Tue Jun 22 2021

TXZ436>439-230600-
/O.NEW.KHGX.RP.S.0036.210622T0846Z-210623T0600Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
346 AM CDT Tue Jun 22 2021

...HIGH RIP CURRENT RISK IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Dangerous rip currents.

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

* WHEN...Through late tonight.

* 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.

&&

$$
3 follow-up statements
902 
WHUS44 KHGX 221514
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
1014 AM CDT Tue Jun 22 2021

TXZ436>439-230000-
/O.CON.KHGX.RP.S.0036.000000T0000Z-210623T0600Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
1014 AM CDT Tue Jun 22 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Dangerous rip currents.

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

* WHEN...Through late tonight.

* 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.

&&

$$
847 
WHUS44 KHGX 222043
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
343 PM CDT Tue Jun 22 2021

TXZ436>439-230445-
/O.CON.KHGX.RP.S.0036.000000T0000Z-210623T0600Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
343 PM CDT Tue Jun 22 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...Dangerous rip currents.

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

* WHEN...Until 1 AM CDT Wednesday.

* 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.

&&

$$
494 
WHUS44 KHGX 230259
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
959 PM CDT Tue Jun 22 2021

TXZ436>439-230600-
/O.CON.KHGX.RP.S.0036.000000T0000Z-210623T0600Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
959 PM CDT Tue Jun 22 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 1 AM CDT
WEDNESDAY...

* WHAT...Dangerous rip currents.

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

* WHEN...Until 1 AM CDT Wednesday.

* 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
Jun 21, 7:08 PM CDTFlash Flood WarningHGXHarris3 hr
Jun 21, 7:36 PM CDTAreal Flood AdvisoryHGXHarris, Liberty3 hr
Jun 21, 8:01 PM CDTSpecial Weather StatementHGXHouston, Trinity44 min
Jun 21, 9:25 PM CDTSpecial Weather StatementHGXHouston, Trinity50 min
Jun 21, 10:11 PM CDTSmall Craft AdvisoryHGX3 hr
Jun 21, 10:23 PM CDTSpecial Weather StatementHGXTrinity52 min
Jun 21, 10:25 PM CDTAreal Flood AdvisoryHGXHarris110 min
Jun 21, 11:17 PM CDTSpecial Weather StatementHGXMadison43 min
Jun 21, 11:24 PM CDTSpecial Marine WarningHGX51 min
Jun 21, 11:39 PM CDTSpecial Weather StatementHGXMadison36 min
Jun 21, 11:58 PM CDTSpecial Weather StatementHGXGrimes, Madison47 min
Jun 22, 12:08 AM CDTSevere Thunderstorm WarningHGXBrazos, Grimes, Madison, Montgomery, Walker52 min
Jun 22, 12:28 AM CDTSpecial Weather StatementHGXBrazoria47 min
Jun 22, 12:56 AM CDTSpecial Weather StatementHGXBrazos, Burleson49 min
Jun 22, 1:14 AM CDTSpecial Weather StatementHGXBrazos, Burleson, Washington91 min
Jun 22, 1:17 AM CDTSpecial Weather StatementHGXBrazoria43 min
Jun 22, 1:28 AM CDTAreal Flood AdvisoryHGXBrazos, Burleson, Grimes2 hr
Jun 22, 1:43 AM CDTSpecial Weather StatementHGXBrazoria47 min
Jun 22, 4:28 AM CDTSpecial Weather StatementHGXJackson47 min
Jun 22, 9:24 AM CDTSpecial Marine WarningHGX66 min
Jun 22, 10:55 AM CDTSpecial Marine WarningHGX95 min
Jun 22, 6:08 PM CDTSpecial Weather StatementHGXHarris37 min
Jun 22, 6:57 PM CDTSpecial Weather StatementHGXWharton48 min

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.