Alert archive / Texas / Rip Current Statements in 2018

Rip Current Statement 16, NWS Houston/Galveston, TX

June 17, 2018Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jun 17, 2018, 4:14 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It took effect at Jun 17, 2018, 7:00 AM CDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued
Jun 17, 2018, 4:14 AM CDT (09:14 UTC)
In effect from
Jun 17, 2018, 7:00 AM CDT
Expired
Jun 17, 2018, 10:00 PM CDT
In force
15 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 09:17 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, 9.2 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 2018-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 729 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 2018-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
729 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1031 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-8 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

895 
WHUS44 KHGX 170914
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
414 AM CDT Sun Jun 17 2018

...High Risk of Rip Currents Today...

.Galveston Island Beach Patrol continues to report strong rip currents
along area beaches. Beachgoers should make sure to swim
near a lifeguard if entering the water.

TXZ436>438-171715-
/O.NEW.KHGX.RP.S.0016.180617T1200Z-180618T0300Z/
Brazoria Islands-Galveston Island and Bolivar Peninsula-
Matagorda Islands-
414 AM CDT Sun Jun 17 2018

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

The National Weather Service in Houston/Galveston has issued a
High Rip Current Risk, which is in effect through this evening. 

* TIMING...Through at least this evening.

* IMPACTS...Hazardous swimming conditions at Gulf-facing 
  beaches, especially near piers, jetties, and rock groins.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a high risk of rip currents. Life threatening rip
currents are likely in the surf zone.
               
Rip currents are powerful channels of water flowing quickly away
from shore...which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins...
jetties and piers. Heed the advice of lifeguards...beach patrol...
flags and signs. Swim near a lifeguard.
               
If you become caught in a rip current...yell for help. Remain
calm...do not exhaust yourself and stay afloat while waiting for
help. If you have to swim out of a rip current...swim parallel to
shore and back toward the beach when possible. Do not attempt to
swim directly against a rip current as you will tire quickly.

&&

$$
1 follow-up statement
637 
WHUS44 KHGX 171347
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
847 AM CDT Sun Jun 17 2018

...High Risk of Rip Currents Today...
...Coastal Flood Advisory through Tuesday Afternoon...

.Galveston Island Beach Patrol continues to report strong rip
currents along area beaches. Beachgoers should make sure to swim
near a lifeguard if entering the water.

TXZ438-172200-
/O.NEW.KHGX.CF.Y.0001.180617T1347Z-180619T2000Z/
/O.CON.KHGX.RP.S.0016.000000T0000Z-180618T0300Z/
Galveston Island and Bolivar Peninsula-
847 AM CDT Sun Jun 17 2018

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 3 PM CDT TUESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH THIS EVENING...

The National Weather Service in Houston/Galveston has issued a
Coastal Flood Advisory, which is in effect until 3 PM CDT
Tuesday. 

* COASTAL FLOODING...Until 3 PM CDT Tuesday...

* Timing...Through at least this evening.

* IMPACTS...Hazardous swimming conditions at Gulf-facing 
  beaches, especially near piers, jetties, and rock groins. 
  Wave runup, especially in times of high tide, will impact
  Highway 87 on Bolivar Peninsula.  Higher tides for Galveston
  Bay and Island.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A coastal flood advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

There is a high risk of rip currents. Life threatening rip
currents are likely in the surf zone.

Rip currents are powerful channels of water flowing quickly away
from shore...which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins...
jetties and piers. Heed the advice of lifeguards...beach patrol...
flags and signs. Swim near a lifeguard.

If you become caught in a rip current...yell for help. Remain
calm...do not exhaust yourself and stay afloat while waiting for
help. If you have to swim out of a rip current...swim parallel to
shore and back toward the beach when possible. Do not attempt to
swim directly against a rip current as you will tire quickly.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

&&

$$

TXZ436-437-172200-
/O.CON.KHGX.RP.S.0016.000000T0000Z-180618T0300Z/
Brazoria Islands-Matagorda Islands-
847 AM CDT Sun Jun 17 2018

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

* TIMING...Through at least this evening.

* IMPACTS...Hazardous swimming conditions at Gulf-facing 
  beaches, especially near piers, jetties, and rock groins. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

There is a high risk of rip currents. Life threatening rip
currents are likely in the surf zone.

Rip currents are powerful channels of water flowing quickly away
from shore...which occur most often at low spots or breaks in the
sandbar and in the vicinity of structures such as groins...
jetties and piers. Heed the advice of lifeguards...beach patrol...
flags and signs. Swim near a lifeguard.

If you become caught in a rip current...yell for help. Remain
calm...do not exhaust yourself and stay afloat while waiting for
help. If you have to swim out of a rip current...swim parallel to
shore and back toward the beach when possible. Do not attempt to
swim directly against a rip current as you will tire quickly.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 8:47 AM CDTCoastal Flood AdvisoryHGXGalveston54 hr

Nearby

Rip Current Statements in Texas, 2018Every rip current statement in 2018

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.