Alert archive / Texas / Rip Current Statements in 2021

Rip Current Statement 41, NWS Houston/Galveston, TX

July 8, 2021Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jul 8, 2021, 8:28 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Jul 8, 2021, 8:28 AM CDT (13:28 UTC)
Expired
Jul 8, 2021, 9:00 PM CDT
In force
13 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 13:27 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, 1.5 hours before the alert went out and 243 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 2021-07-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2090 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, Lake Charles Mun, LA at 12:00Z on 2021-07-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.193958Sfc1 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
2090 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
604 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
-51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

504 
WHUS44 KHGX 081328
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
828 AM CDT Thu Jul 8 2021

TXZ436>439-082130-
/O.NEW.KHGX.RP.S.0041.210708T1328Z-210709T0200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
828 AM CDT Thu Jul 8 2021

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

* WHAT...Dangerous rip currents.

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

* 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. 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
655 
WHUS44 KHGX 081952
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
252 PM CDT Thu Jul 8 2021

TXZ436>439-090200-
/O.CON.KHGX.RP.S.0041.000000T0000Z-210709T0200Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
252 PM CDT Thu Jul 8 2021

...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.

* 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. 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
Jul 7, 8:52 PM CDTSpecial Weather StatementHGXJackson53 min
Jul 7, 8:57 PM CDTSpecial Marine WarningHGX106 min
Jul 7, 10:17 PM CDTAreal Flood AdvisoryHGXJackson, Matagorda3 hr
Jul 7, 10:42 PM CDTSpecial Marine WarningHGX2 hr
Jul 7, 11:14 PM CDTAreal Flood AdvisoryHGXBrazoria, Matagorda3 hr
Jul 8, 12:38 AM CDTSpecial Marine WarningHGX97 min
Jul 8, 12:58 AM CDTSmall Craft AdvisoryHGX39 hr
Jul 8, 2:44 PM CDTAreal Flood AdvisoryHGXJackson, Matagorda2 hr
Jul 8, 4:19 PM CDTSpecial Marine WarningHGX26 min
Jul 8, 4:35 PM CDTAreal Flood AdvisoryHGXJackson, Matagorda, Wharton115 min
Jul 8, 4:37 PM CDTSpecial Marine WarningHGX53 min
Jul 8, 5:38 PM CDTAreal Flood AdvisoryHGXJackson, Wharton52 min
Jul 8, 6:24 PM CDTAreal Flood AdvisoryHGXJackson, Matagorda, Wharton3 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.