Alert archive / Texas / Rip Current Statements in 2017

Rip Current Statement 7, NWS Houston/Galveston, TX

June 30, 2017Brazoria County, Chambers County, Galveston County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jun 30, 2017, 3:50 AM CDT for Brazoria County, Chambers County, Galveston County, Texas. It took effect at Jun 30, 2017, 4:00 AM CDT. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Jun 30, 2017, 3:50 AM CDT (08:50 UTC)
In effect from
Jun 30, 2017, 4:00 AM CDT
Expired
Jul 1, 2017, 12:00 AM CDT
In force
20 hr
Issued by
NWS Houston/Galveston, TX

Counties Brazoria County, TX, Chambers County, TX, Galveston County, TX

The radar

The Houston radar (KHGX), 14 km from the middle of the area, began a volume at 08:51 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 00:00Z, 8.8 hours before the alert went out and 189 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 00:00Z on 2017-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1042 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, Lake Charles Mun, LA at 00:00Z on 2017-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
1042 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
45 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.6

Open this sounding in Storm Lab

The text

As transmitted.

345 
WHUS44 KHGX 300850
CFWHGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
350 AM CDT FRI JUN 30 2017

...STRONG RIP CURRENTS ON GULF-FACING BEACHES TODAY...

.MODERATE ONSHORE WINDS WILL CONTINUE THROUGH TONIGHT. THESE 
CONDITIONS WILL SUPPORT STRONG RIP CURRENTS AND LONGSHORE 
CURRENTS. CAUTION SHOULD BE USED WHEN IN AND NEAR THE WATER.

TXZ214-237-238-010500-
/O.CAN.KHGX.BH.S.0008.000000T0000Z-170630T1000Z/
/O.NEW.KHGX.RP.S.0007.170630T0900Z-170701T0500Z/
BRAZORIA-CHAMBERS-GALVESTON-
350 AM CDT FRI JUN 30 2017

...HIGH RIP CURRENT RISK IN EFFECT THROUGH THIS EVENING...
...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
HIGH RIP CURRENT RISK, WHICH IS IN EFFECT THROUGH THIS EVENING.
THE BEACH HAZARDS STATEMENT HAS BEEN CANCELLED. 

* HAZARDS...STRONG RIP CURRENTS.

* TIMING...THROUGH TONIGHT.

* LOCATION...GULF-FACING BEACHES.

* POTENTIAL IMPACTS...HAZARDOUS SWIMMING CONDITIONS. 

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.

&&

$$

Nearby

Rip Current Statements in Texas, 2017Every rip current statement in 2017

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.