Alert archive / Texas / Rip Current Statements in 2020

Rip Current Statement 1, NWS Houston/Galveston, TX

January 9, 2020Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jan 9, 2020, 9:31 AM CST for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 44 hr.

The area

The counties it named.

The facts

Issued
Jan 9, 2020, 9:31 AM CST (15:31 UTC)
Expired
Jan 11, 2020, 6:00 AM CST
In force
44 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 15:32 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, 3.5 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 2020-01-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 238 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 2020-01-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 208 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
238 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
505 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
208 m²/s²
0-3 km storm-relative helicity
296 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

As transmitted.

228 
WHUS44 KHGX 091531
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
931 AM CST Thu Jan 9 2020

TXZ436>438-101200-
/O.NEW.KHGX.RP.S.0001.200109T1531Z-200110T1200Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
931 AM CST Thu Jan 9 2020

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

* WHAT...Dangerous rip currents.

* WHERE...Matagorda Islands, Brazoria Islands and 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
224 
WHUS44 KHGX 092106
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
306 PM CST Thu Jan 9 2020

TXZ436>438-100515-
/O.EXT.KHGX.RP.S.0001.000000T0000Z-200111T0600Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
306 PM CST Thu Jan 9 2020

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

* WHAT...Dangerous rip currents.

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

* WHEN...Through Friday 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.

&&

$$
533 
WHUS44 KHGX 100333
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
933 PM CST Thu Jan 9 2020

TXZ436>438-101245-
/O.CON.KHGX.RP.S.0001.000000T0000Z-200111T0600Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
933 PM CST Thu Jan 9 2020

...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH FRIDAY
EVENING...

* WHAT...Dangerous rip currents.

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

* WHEN...Through Friday 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.

&&

$$
943 
WHUS44 KHGX 101019
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
419 AM CST Fri Jan 10 2020

TXZ436>438-110000-
/O.EXT.KHGX.RP.S.0001.000000T0000Z-200111T1200Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
419 AM CST Fri Jan 10 2020

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

* WHAT...Dangerous rip currents.

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

* 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 8, 9:49 PM CSTSmall Craft AdvisoryHGX71 hr
Jan 9, 3:06 PM CSTGale WarningHGX13 hr
Jan 9, 3:06 PM CSTSmall Craft AdvisoryHGX48 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.