Alert archive / Texas / Rip Current Statements in 2011

Rip Current Statement 1, NWS Houston/Galveston, TX

May 29, 20114 counties in Texas

NWS Houston/Galveston, TX issued this rip current statement at May 29, 2011, 7:20 AM CDT for 4 counties in Texas. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
May 29, 2011, 7:20 AM CDT (12:20 UTC)
Expired
May 30, 2011, 7:00 PM CDT
In force
36 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 12:25 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 12:00Z, 0.3 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 12:00Z on 2011-05-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1989 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 12:00Z on 2011-05-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -106 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
1989 J/kg
Mixed-layer CIN
-208 J/kg
Mixed-layer LCL
537 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-106 m²/s²
0-3 km storm-relative helicity
-50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

994 
WHUS44 KHGX 291220
CFWHGX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
720 AM CDT SUN MAY 29 2011


TXZ214-236>238-300000-
/O.NEW.KHGX.RP.S.0001.110529T1220Z-110531T0000Z/
BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA-
720 AM CDT SUN MAY 29 2011

...RIP CURRENT RISK THROUGH MONDAY EVENING...

PERSISTENT SOUTHEAST WINDS OF 20 TO 30 MPH WILL PRODUCE CONDITIONS
FAVORABLE FOR RIP CURRENTS AT AREA BEACHES TODAY AND MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS. 

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


HTTP://WWW.WEATHER.GOV/HOUSTON
3 follow-up statements
254 
WHUS44 KHGX 292032
CFWHGX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
332 PM CDT SUN MAY 29 2011

TXZ214-236>238-310000-
/O.CON.KHGX.RP.S.0001.000000T0000Z-110531T0000Z/
BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA-
332 PM CDT SUN MAY 29 2011

...RIP CURRENT RISK REMAINS IN EFFECT THROUGH MONDAY EVENING...

PERSISTENT SOUTHEAST WINDS OF 20 TO 30 MPH WILL PRODUCE
CONDITIONS FAVORABLE FOR RIP CURRENTS AT AREA BEACHES TODAY AND
MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


HTTP://WWW.WEATHER.GOV/HOUSTON
478 
WHUS44 KHGX 300342
CFWHGX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1042 PM CDT SUN MAY 29 2011

TXZ214-236>238-310000-
/O.CON.KHGX.RP.S.0001.000000T0000Z-110531T0000Z/
BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA-
1042 PM CDT SUN MAY 29 2011

...RIP CURRENT RISK REMAINS IN EFFECT THROUGH MONDAY EVENING...

PERSISTENT SOUTHEAST WINDS OF 20 TO 30 MPH WILL PRODUCE
CONDITIONS FAVORABLE FOR RIP CURRENTS AT AREA BEACHES TONIGHT AND
MONDAY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


HTTP://WWW.WEATHER.GOV/HOUSTON
808 
WHUS44 KHGX 301548
CFWHGX

URGENT - IMMEDIATE BROADCAST REQUESTED
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1048 AM CDT MON MAY 30 2011

TXZ214-236>238-310000-
/O.CON.KHGX.RP.S.0001.000000T0000Z-110531T0000Z/
BRAZORIA-CHAMBERS-GALVESTON-MATAGORDA-
1048 AM CDT MON MAY 30 2011

...RIP CURRENT RISK REMAINS IN EFFECT...

PERSISTENT SOUTHEAST WINDS OF 20 TO 30 MPH WILL PRODUCE CONDITIONS
FAVORABLE FOR RIP CURRENTS AT LOCAL AREA BEACHES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 JETTIES AND
PIERS. HEED THE ADVICE OF LIFEGUARDS AND THE BEACH PATROL. PAY
ATTENTION TO FLAGS AND POSTED SIGNS.

IF YOU BECOME CAUGHT IN A RIP CURRENT...DO NOT PANIC. REMAIN CALM
AND BEGIN TO SWIM PARALLEL TO SHORE. ONCE YOU ARE AWAY FROM THE
FORCE OF THE RIP CURRENT...BEGIN TO SWIM BACK TO THE BEACH. DO
NOT ATTEMPT TO SWIM DIRECTLY AGAINST A RIP CURRENT. EVEN A STRONG
SWIMMER CAN BECOME EXHAUSTED QUICKLY.

&&

$$


HTTP://WWW.WEATHER.GOV/HOUSTON

The office that day

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

IssuedProductOfficeCountiesLasted
May 29, 3:10 AM CDTWind AdvisoryHGXAustin, Brazoria, Brazos, Burleson, Colorado, Fort Bend and 5 more16 hr

Nearby

Rip Current Statements in Texas, 2011Every rip current statement in 2011

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.