Alert archive / Texas / Rip Current Statements in 2020

Rip Current Statement 42, NWS Houston/Galveston, TX

September 3, 2020Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Sep 3, 2020, 2:48 PM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Sep 3, 2020, 2:48 PM CDT (19:48 UTC)
Expired
Sep 4, 2020, 10:00 AM CDT
In force
19 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 19:50 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, 7.8 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 12:00Z on 2020-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2421 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 2020-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -39 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
2421 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
800 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-39 m²/s²
0-3 km storm-relative helicity
-30 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

908 
WHUS44 KHGX 031948
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
248 PM CDT Thu Sep 3 2020

TXZ436>438-040400-
/O.NEW.KHGX.RP.S.0042.200903T1948Z-200904T0500Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
248 PM CDT Thu Sep 3 2020

...HIGH RIP CURRENT RISK IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

* WHAT...Dangerous rip currents.

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

* WHEN...Until midnight CDT 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.

&&

$$
2 follow-up statements
592 
WHUS44 KHGX 032238
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
538 PM CDT Thu Sep 3 2020

TXZ436>438-041200-
/O.EXT.KHGX.RP.S.0042.000000T0000Z-200904T1200Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
538 PM CDT Thu Sep 3 2020

...HIGH RIP CURRENT RISK NOW IN EFFECT THROUGH FRIDAY MORNING...

* WHAT...Dangerous rip currents.

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

* WHEN...Through Friday morning.

* 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.

&&

$$
905 
WHUS44 KHGX 040850
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
350 AM CDT Fri Sep 4 2020

TXZ436>438-041500-
/O.EXT.KHGX.RP.S.0042.000000T0000Z-200904T1500Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
350 AM CDT Fri Sep 4 2020

...HIGH RIP CURRENT RISK NOW IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Dangerous rip currents.

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

* WHEN...Until 10 AM CDT this morning.

* 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
Sep 3, 4:00 AM CDTHeat AdvisoryHGXBrazoria, Chambers, Galveston, Harris, Liberty, Matagorda14 hr
Sep 3, 11:46 AM CDTSpecial Weather StatementHGXBrazos, Burleson, Grimes, Houston, Madison59 min
Sep 3, 1:52 PM CDTSpecial Weather StatementHGXPolk38 min
Sep 3, 1:54 PM CDTSpecial Weather StatementHGXPolk51 min
Sep 3, 2:26 PM CDTSpecial Weather StatementHGXSan Jacinto49 min

Nearby

Rip Current Statements in Texas, 2020Every rip current statement in 2020

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.