Alert archive / Texas / Rip Current Statements in 2020

Rip Current Statement 33, NWS Houston/Galveston, TX

July 25, 2020Brazoria County, Galveston County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jul 25, 2020, 10:05 AM CDT for Brazoria County, Galveston County, Texas. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 25, 2020, 10:05 AM CDT (15:05 UTC)
Expired
Jul 25, 2020, 3:30 PM CDT
In force
5 hr
Issued by
NWS Houston/Galveston, TX

Counties Brazoria County, TX, Galveston County, TX

The radar

The Houston radar (KHGX), 27 km from the middle of the area, began a volume at 15:08 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, 3.1 hours before the alert went out and 210 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 2020-07-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1106 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 2020-07-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
1106 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
670 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
23 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

750 
WHUS44 KHGX 251505
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
1005 AM CDT Sat Jul 25 2020

TXZ437-438-252315-
/O.NEW.KHGX.RP.S.0033.200725T1505Z-200727T0000Z/
/O.CON.KHGX.CF.W.0001.000000T0000Z-200726T1500Z/
Brazoria Islands-Galveston Island and Bolivar Peninsula-
1005 AM CDT Sat Jul 25 2020

...HIGH RIP CURRENT RISK IN EFFECT THROUGH SUNDAY EVENING...
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

* WHAT...For the Coastal Flood Warning, significant coastal 
  flooding. For the High Rip Current Risk, dangerous rip 
  currents.

* WHERE...Brazoria Islands and Galveston Island and Bolivar 
  Peninsula.

* WHEN...For the Coastal Flood Warning, until 10 AM CDT Sunday. 
  For the High Rip Current Risk, through Sunday evening.

* IMPACTS...Numerous roads may be closed. Low lying property 
  including homes, businesses, and some critical infrastructure 
  will be inundated. Some shoreline erosion will occur. Rip 
  currents can sweep even the best swimmers away from shore into 
  deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

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.

&&

$$

TXZ313-338-252315-
/O.CON.KHGX.CF.W.0001.000000T0000Z-200726T1500Z/
Coastal Harris-Coastal Galveston-
1005 AM CDT Sat Jul 25 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

* WHAT...Significant coastal flooding tide levels of 2 to 3 feet 
  above normal tide levels. These elevated tide levels will also 
  hamper the drainage of bayous and rivers. 

* WHERE...Coastal Harris and Coastal Galveston Counties.

* WHEN...Until 10 AM CDT Sunday.

* IMPACTS...Numerous roads may be closed. Low lying property 
  including homes, businesses, and some critical infrastructure 
  will be inundated. Some shoreline erosion will occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

$$
1 follow-up statement
407 
WHUS44 KHGX 252030
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
330 PM CDT Sat Jul 25 2020

TXZ437-438-261500-
/O.CAN.KHGX.RP.S.0033.000000T0000Z-200727T0000Z/
/O.CON.KHGX.CF.W.0001.000000T0000Z-200726T1500Z/
Brazoria Islands-Galveston Island and Bolivar Peninsula-
330 PM CDT Sat Jul 25 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

* WHAT...Significant coastal flooding around times of high tide.
  Also, high surf along with a high risk of rip currents and 
  longshore currents along beach front locations.

* WHERE...Brazoria Islands and Galveston Island and Bolivar 
  Peninsula Counties.

* WHEN...Until 10 AM CDT Sunday.

* IMPACTS...Numerous roads may be closed. Low lying property 
  including homes, businesses, and some critical infrastructure 
  will be inundated. Some shoreline erosion will occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

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.

&&

$$

TXZ313-338-261500-
/O.CON.KHGX.CF.W.0001.000000T0000Z-200726T1500Z/
Coastal Harris-Coastal Galveston-
330 PM CDT Sat Jul 25 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM CDT
SUNDAY...

* WHAT...Significant coastal flooding around times of high tide.

* WHERE...Coastal Harris and Coastal Galveston Counties.

* WHEN...Until 10 AM CDT Sunday.

* IMPACTS...Numerous roads may be closed. Low lying property 
  including homes, businesses, and some critical infrastructure 
  will be inundated. Some shoreline erosion will occur.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take the necessary actions to protect flood-prone property. If
travel is required, do not drive around barricades or through
water of unknown depth.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 25, 5:29 AM CDTSpecial Weather StatementHGXFort Bend16 min
Jul 25, 5:53 AM CDTSpecial Weather StatementHGXFort Bend52 min
Jul 25, 6:02 AM CDTSpecial Weather StatementHGXJackson, Matagorda58 min
Jul 25, 6:51 AM CDTTornado WarningHGXFort Bend, Wharton24 min
Jul 25, 10:00 AM CDTSmall Craft AdvisoryHGX39 hr
Jul 25, 1:55 PM CDTAreal Flood AdvisoryHGXGalveston50 min

Nearby

Rip Current Statements in Texas, 2020Every rip current statement in 2020

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.