Alert archive / Texas / Beach Hazards Statements in 2021

Beach Hazards Statement 6, NWS Houston/Galveston, TX

June 18, 2021Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this beach hazards statement at Jun 18, 2021, 3:04 PM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Jun 18, 2021, 3:04 PM CDT (20:04 UTC)
Expired
Jun 19, 2021, 10:00 AM CDT
In force
19 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 20:05 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, 8.1 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 2021-06-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 228 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 2021-06-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
228 J/kg
Mixed-layer CIN
-186 J/kg
Mixed-layer LCL
1299 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

093 
WHUS44 KHGX 182004
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
304 PM CDT Fri Jun 18 2021

TXZ436>439-191500-
/O.NEW.KHGX.BH.S.0006.210618T2004Z-210619T1500Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
304 PM CDT Fri Jun 18 2021

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH SATURDAY MORNING...

* WHAT...Dangerous rip currents developing.

* WHERE...Gulf-facing beaches on Matagorda Island, Brazoria Island, 
  Galveston Island and the Bolivar Peninsula Counties.

* WHEN...Through Saturday morning.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...This hazard will probably need to be extended 
  over the weekend.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Swim near a lifeguard. If caught in a rip current, relax and float. 
Don't swim against the current. If able, swim in a direction following 
the shoreline. If unable to escape, face the shore and call or wave for 
help.

&&

$$
1 follow-up statement
567 
WHUS44 KHGX 190911
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
411 AM CDT Sat Jun 19 2021

TXZ436>439-191500-
/O.CON.KHGX.BH.S.0006.000000T0000Z-210619T1500Z/
Matagorda Islands-Brazoria Islands-Galveston Island-
Bolivar Peninsula-
411 AM CDT Sat Jun 19 2021

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 AM CDT THIS
MORNING...

* WHAT...Dangerous rip currents developing.

* WHERE...Gulf-facing beaches on Matagorda Island, Brazoria 
  Island, Galveston Island and the Bolivar Peninsula Counties.

* WHEN...Through Saturday morning.

* IMPACTS...Rip currents can sweep even the best swimmers away 
  from shore into deeper water.

* ADDITIONAL DETAILS...This hazard will probably need to be extended 
  over the weekend.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

$$

Nearby

Beach Hazards Statements in Texas, 2021Every beach hazards statement in 2021

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.