Alert archive / Texas / Rip Current Statements in 2020

Rip Current Statement 34, NWS Houston/Galveston, TX

July 26, 2020Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Jul 26, 2020, 4:55 AM CDT for Brazoria County, Galveston County, Matagorda County, Texas. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Jul 26, 2020, 4:55 AM CDT (09:55 UTC)
Expired
Jul 27, 2020, 1:00 AM CDT
In force
20 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 09:55 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 00:00Z, 9.9 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 00:00Z on 2020-07-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 573 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2020-07-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 square meters per square second.19395878Sfc1 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
573 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
576 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
98 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.7

Open this sounding in Storm Lab

The text

As transmitted.

588 
WHUS44 KHGX 260955
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
455 AM CDT Sun Jul 26 2020

TXZ436>438-261800-
/O.CAN.KHGX.CF.W.0001.000000T0000Z-200726T1500Z/
/O.NEW.KHGX.CF.Y.0003.200726T0955Z-200726T1500Z/
/O.NEW.KHGX.RP.S.0034.200726T0955Z-200727T0600Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
455 AM CDT Sun Jul 26 2020

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 10 AM CDT THIS
MORNING...
...HIGH RIP CURRENT RISK IN EFFECT THROUGH LATE TONIGHT...
...COASTAL FLOOD WARNING IS CANCELLED...

* WHAT...Minor coastal flooding around times of high tide and a
  high risk of rip currents and longshore currents along beach 
  front locations.

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

* WHEN...For the Coastal Flood Advisory, until 10 AM CDT this 
  morning. For the High Rip Current Risk, through late tonight.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Rip currents can sweep even 
  the best swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

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.

&&

$$

TXZ313-335>338-261500-
/O.CAN.KHGX.CF.W.0001.000000T0000Z-200726T1500Z/
/O.NEW.KHGX.CF.Y.0003.200726T0955Z-200726T1500Z/
Coastal Harris-Coastal Jackson-Coastal Matagorda-Coastal Brazoria-
Coastal Galveston-
455 AM CDT Sun Jul 26 2020

...COASTAL FLOOD ADVISORY IN EFFECT UNTIL 10 AM CDT THIS
MORNING...
...COASTAL FLOOD WARNING IS CANCELLED...

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

* WHERE...Coastal Harris, Coastal Jackson, Coastal Matagorda, 
  Coastal Brazoria and Coastal Galveston Counties.

* WHEN...Until 10 AM CDT this morning.

* IMPACTS...Flooding of lots, parks, and roads with only isolated
  road closures expected. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

&&

$$
2 follow-up statements
071 
WHUS44 KHGX 261436
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
936 AM CDT Sun Jul 26 2020

TXZ436>438-262245-
/O.EXT.KHGX.CF.Y.0003.000000T0000Z-200727T0000Z/
/O.CON.KHGX.RP.S.0034.000000T0000Z-200727T0600Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
936 AM CDT Sun Jul 26 2020

...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THIS
EVENING...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT THROUGH LATE TONIGHT...

* WHAT...Minor coastal flooding around times of high tide and a 
  high risk of rip currents and longshore currents along beach 
  front locations.

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

* WHEN...For the Coastal Flood Advisory, until 7 PM CDT this 
  evening. For the High Rip Current Risk, through late tonight.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Rip currents can sweep even 
  the best swimmers away from shore into deeper water.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

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.

&&

$$

TXZ313-335>338-262245-
/O.EXT.KHGX.CF.Y.0003.000000T0000Z-200727T0000Z/
Coastal Harris-Coastal Jackson-Coastal Matagorda-Coastal Brazoria-
Coastal Galveston-
936 AM CDT Sun Jul 26 2020

...COASTAL FLOOD ADVISORY NOW IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

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

* WHERE...Coastal Harris, Coastal Jackson, Coastal Matagorda, 
  Coastal Brazoria and Coastal Galveston Counties.

* WHEN...Until 7 PM CDT this evening.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

&&

$$
716 
WHUS44 KHGX 262047
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
347 PM CDT Sun Jul 26 2020

TXZ436>438-270500-
/O.CAN.KHGX.CF.Y.0003.000000T0000Z-200727T0000Z/
/O.CON.KHGX.RP.S.0034.000000T0000Z-200727T0600Z/
Matagorda Islands-Brazoria Islands-
Galveston Island and Bolivar Peninsula-
347 PM CDT Sun Jul 26 2020

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 1 AM CDT
MONDAY...
...COASTAL FLOOD ADVISORY IS CANCELLED...

* WHAT...Elevated tides will remain through the evening, but coastal 
   flooding has receded enough to no longer warrant a Coastal Flood 
   Advisory. A high risk of rip currents and longshore currents 
   along beach front locations.

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

* WHEN...Until 1 AM CDT Monday.

* IMPACTS...Flooding of lots, parks, and roads with only 
  isolated road closures expected. Rip currents can sweep even 
  the best swimmers away from shore into deeper water.

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.

&&

$$

TXZ313-335>338-262200-
/O.CAN.KHGX.CF.Y.0003.000000T0000Z-200727T0000Z/
Coastal Harris-Coastal Jackson-Coastal Matagorda-Coastal Brazoria-
Coastal Galveston-
347 PM CDT Sun Jul 26 2020

...COASTAL FLOOD ADVISORY IS CANCELLED...

Elevated tides will remain through the day today, but coastal 
flooding has receded enough to no longer warrant a Coastal Flood 
Advisory. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 26, 4:55 AM CDTCoastal Flood AdvisoryHGXBrazoria, Galveston, Harris, Jackson, Matagorda11 hr

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.