Alert archive / Texas / Rip Current Statements in 2017

Rip Current Statement 17, NWS Houston/Galveston, TX

September 10, 20174 counties in Texas

NWS Houston/Galveston, TX issued this rip current statement at Sep 10, 2017, 3:14 AM CDT for 4 counties in Texas. It took effect at Sep 10, 2017, 7:00 AM CDT. It was in force for 17 hr.

The area

The counties it named.

The facts

Issued
Sep 10, 2017, 3:14 AM CDT (08:14 UTC)
In effect from
Sep 10, 2017, 7:00 AM CDT
Expired
Sep 11, 2017, 12:00 AM CDT
In force
17 hr
Issued by
NWS Houston/Galveston, TX

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

The radar

The Houston radar (KHGX), 30 km from the middle of the area, began a volume at 08:15 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, 8.2 hours before the alert went out and 219 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 2017-09-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2017-09-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -26 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1550 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-26 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

230 
WHUS44 KHGX 100814
CFWHGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
314 AM CDT SUN SEP 10 2017

...HIGH RIP CURRENT RISK TODAY...

ELEVATED NORTHEASTERLY WINDS ALONG THE UPPER TEXAS COAST COAST 
WILL RESULT IN A HIGH RISK FOR RIP CURRENTS ALONG GULF-FACING 
BEACHES TODAY.

TXZ214-236>238-110500-
/O.NEW.KHGX.RP.S.0017.170910T1200Z-170911T0500Z/
BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA-
314 AM CDT SUN SEP 10 2017

...HIGH RIP CURRENT RISK IN EFFECT FROM 7 AM CDT THIS MORNING
THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
HIGH RIP CURRENT RISK, WHICH IS IN EFFECT FROM 7 AM CDT THIS
MORNING THROUGH THIS EVENING. 

* TIMING...THROUGH THIS EVENING.

* IMPACTS...STRONG AND POTENTIALLY LIFE THREATENING RIP CURRENTS 
  ARE EXPECTED ALONG GULF-FACING BEACHES OF THE UPPER TEXAS 
  COAST.

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
112 
WHUS44 KHGX 101950
CFWHGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
250 PM CDT SUN SEP 10 2017

...HIGH RIP CURRENT RISK TODAY...

ELEVATED NORTHEASTERLY WINDS ALONG THE UPPER TEXAS COAST COAST
WILL RESULT IN A HIGH RISK FOR RIP CURRENTS ALONG GULF-FACING
BEACHES TODAY AND THIS EVENING.

TXZ214-236>238-110400-
/O.CON.KHGX.RP.S.0017.000000T0000Z-170911T0500Z/
BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA-
250 PM CDT SUN SEP 10 2017

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

* TIMING...THROUGH THIS EVENING.

* IMPACTS...STRONG AND POTENTIALLY LIFE THREATENING RIP CURRENTS 
  ARE EXPECTED ALONG GULF-FACING BEACHES OF THE UPPER TEXAS 
  COAST. 

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.