Alert archive / Texas / Rip Current Statements in 2020

Rip Current Statement 46, NWS Houston/Galveston, TX

October 6, 2020Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Oct 6, 2020, 4:41 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued
Oct 6, 2020, 4:41 AM CDT (09:41 UTC)
Expired
Oct 6, 2020, 9:00 PM CDT
In force
16 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 09:38 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, 9.7 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 2020-10-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 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 00:00Z on 2020-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 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
27 J/kg
Mixed-layer CIN
-162 J/kg
Mixed-layer LCL
1469 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
112 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

457 
WHUS44 KHGX 060941
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
441 AM CDT Tue Oct 6 2020

TXZ436>438-062200-
/O.NEW.KHGX.RP.S.0046.201006T0941Z-201008T0000Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
441 AM CDT Tue Oct 6 2020

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

* WHAT...Dangerous rip currents along the Gulf facing beaches.

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

* WHEN...Through Wednesday 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
722 
WHUS44 KHGX 062102
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
402 PM CDT Tue Oct 6 2020

TXZ436>438-070200-
/O.EXT.KHGX.RP.S.0046.000000T0000Z-201007T0200Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
402 PM CDT Tue Oct 6 2020

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

* WHAT...Dangerous rip currents.

* WHERE...Brazoria Islands, Matagorda Islands and 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.

&&

$$

The office that day

Everything else NWS Houston/Galveston, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Oct 6, 4:40 AM CDTSmall Craft AdvisoryHGX11 hr

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.