Alert archive / Texas / Rip Current Statements in 2019

Rip Current Statement 19, NWS Houston/Galveston, TX

June 20, 2019Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jun 20, 2019, 8:21 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued
Jun 20, 2019, 8:21 AM CDT (13:21 UTC)
Expired
Jun 20, 2019, 9:00 PM CDT
In force
13 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 13:24 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, 1.4 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 2019-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1785 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 2019-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 75 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
1785 J/kg
Mixed-layer CIN
-244 J/kg
Mixed-layer LCL
1074 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
75 m²/s²
0-3 km storm-relative helicity
135 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

947 
WHUS44 KHGX 201321
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
821 AM CDT Thu Jun 20 2019

...Strong Rip Currents Along Gulf Facing Beaches...

.Moderate to strong onshore flow will produce strong rip currents on
Saturday along Gulf facing beaches..

TXZ436>438-210200-
/O.NEW.KHGX.RP.S.0019.190620T1321Z-190621T0200Z/
Brazoria Islands-Galveston Island and Bolivar Peninsula-
Matagorda Islands-
821 AM CDT Thu Jun 20 2019

...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...Today through this evening.

* IMPACTS...Strong rip currents will create hazardous swimming conditions. Life 
  threatening rip currents are likely in the surf zone. 

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 19, 8:51 PM CDTHeat AdvisoryHGXAustin, Brazoria, Brazos, Burleson, Chambers, Colorado and 17 more22 hr
Jun 19, 11:18 PM CDTSpecial Weather StatementHGXBrazos, Burleson, Madison, Washington42 min
Jun 19, 11:27 PM CDTSpecial Weather StatementHGXBrazos, Burleson33 min
Jun 20, 5:36 AM CDTSevere Thunderstorm WarningHGXHouston, Madison39 min
Jun 20, 6:04 AM CDTSevere Thunderstorm WarningHGXGrimes, Madison13 min
Jun 20, 6:15 AM CDTSpecial Weather StatementHGXMadison45 min
Jun 20, 6:20 AM CDTSpecial Weather StatementHGXGrimes25 min

Nearby

Rip Current Statements in Texas, 2019Every rip current statement in 2019

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.