Alert archive / Texas / Rip Current Statements in 2020

Rip Current Statement 44, NWS Houston/Galveston, TX

September 22, 2020Brazoria County, Galveston County, Matagorda County, Texas

NWS Houston/Galveston, TX issued this rip current statement at Sep 22, 2020, 10:39 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
Sep 22, 2020, 10:39 AM CDT (15:39 UTC)
Expired
Sep 23, 2020, 7:00 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 15:40 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, 3.7 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 2020-09-22Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 12:00Z on 2020-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
1 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
490 m above ground
0-6 km bulk shear
4 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
41 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

876 
WHUS44 KHGX 221539
CFWHGX

URGENT - IMMEDIATE BROADCAST REQUESTED
Coastal Hazard Message
National Weather Service Houston/Galveston TX
1039 AM CDT Tue Sep 22 2020

TXZ437-438-222345-
/O.NEW.KHGX.RP.S.0044.200922T1539Z-200923T1200Z/
/O.EXB.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
Brazoria Islands-Galveston Island and Bolivar Peninsula-
1039 AM CDT Tue Sep 22 2020

...HIGH RIP CURRENT RISK IN EFFECT THROUGH WEDNESDAY MORNING...
...COASTAL FLOOD WARNING IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

* 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 Counties.

* WHEN...Until 7 AM CDT Wednesday. 

* 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.

* ADDITIONAL DETAILS...Coastal flooding from Tropical Depression
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning.

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.

&&

$$

TXZ214-313-337-338-222345-
/O.EXB.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
Chambers-Coastal Harris-Coastal Brazoria-Coastal Galveston-
1039 AM CDT Tue Sep 22 2020

...COASTAL FLOOD WARNING IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

* WHAT...Significant coastal flooding.

* WHERE...Chambers, Coastal Harris, Coastal Brazoria and Coastal 
  Galveston Counties.

* WHEN...Until 7 AM CDT Wednesday.

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

* ADDITIONAL DETAILS...Coastal flooding from Tropical Depression
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning. 

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.

&&

$$

TXZ436-222345-
/O.NEW.KHGX.RP.S.0044.200922T1539Z-200923T1200Z/
/O.EXT.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
Matagorda Islands-
1039 AM CDT Tue Sep 22 2020

...HIGH RIP CURRENT RISK IN EFFECT THROUGH WEDNESDAY MORNING...
...COASTAL FLOOD WARNING NOW IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

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

* WHERE...Matagorda Islands County.

* WHEN...Until 7 AM CDT Wednesday. 

* 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.

* ADDITIONAL DETAILS...Coastal flooding from Tropical Depression
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning.

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.

&&

$$

TXZ335-336-222345-
/O.EXT.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
Coastal Jackson-Coastal Matagorda-
1039 AM CDT Tue Sep 22 2020

...COASTAL FLOOD WARNING NOW IN EFFECT UNTIL 7 AM CDT WEDNESDAY...

* WHAT...Significant coastal flooding.

* WHERE...Coastal Jackson, Coastal Matagorda and Matagorda 
  Islands Counties.

* WHEN...Until 7 AM CDT Wednesday.

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

* ADDITIONAL DETAILS...Coastal flooding from Tropical Depression
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning.

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.

&&

$$
2 follow-up statements
096 
WHUS44 KHGX 230333
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
1033 PM CDT Tue Sep 22 2020

TXZ438-231200-
/O.EXT.KHGX.CF.W.0004.000000T0000Z-200924T1200Z/
/O.CON.KHGX.RP.S.0044.000000T0000Z-200923T1200Z/
Galveston Island and Bolivar Peninsula-
1033 PM CDT Tue Sep 22 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 7 AM CDT THURSDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 AM CDT
WEDNESDAY...

* 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 Counties.

* WHEN...For the Coastal Flood Warning, until 7 AM CDT Thursday. 
  For the High Rip Current Risk, until 7 AM CDT Wednesday.

* 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.

* ADDITIONAL DETAILS...Coastal flooding from Tropical Cyclone
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning.

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.

&&

$$

TXZ436-437-231200-
/O.CON.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
/O.CON.KHGX.RP.S.0044.000000T0000Z-200923T1200Z/
Matagorda Islands-Brazoria Islands-
1033 PM CDT Tue Sep 22 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 7 AM CDT
WEDNESDAY...
...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 AM CDT
WEDNESDAY...

* 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 Counties.

* WHEN...Until 7 AM CDT Wednesday.

* 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.

* ADDITIONAL DETAILS...Coastal flooding from Tropical Cyclone
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning.

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.

&&

$$

TXZ214-313-335>338-231200-
/O.CON.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
Chambers-Coastal Harris-Coastal Jackson-Coastal Matagorda-
Coastal Brazoria-Coastal Galveston-
1033 PM CDT Tue Sep 22 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 7 AM CDT
WEDNESDAY...

* WHAT...Significant coastal flooding.

* WHERE...Chambers, Coastal Harris, Coastal Brazoria and Coastal 
  Galveston Counties.

* WHEN...Until 7 AM CDT Wednesday.

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

* ADDITIONAL DETAILS...Coastal flooding from Tropical Cyclone
  Beta with tides running around 1 to 3 feet above normal through
  Wednesday morning.

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.

&&

$$
531 
WHUS44 KHGX 231214
CFWHGX

Coastal Hazard Message
National Weather Service Houston/Galveston TX
714 AM CDT Wed Sep 23 2020

TXZ436-437-232015-
/O.EXP.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
/O.EXP.KHGX.RP.S.0044.000000T0000Z-200923T1200Z/
/O.NEW.KHGX.CF.Y.0008.200923T1214Z-200924T1200Z/
/O.NEW.KHGX.RP.S.0045.200923T1214Z-200924T0000Z/
Matagorda Islands-Brazoria Islands-
714 AM CDT Wed Sep 23 2020

...COASTAL FLOOD WARNING HAS EXPIRED AND HAS BEEN REPLACED BY A
COASTAL FLOOD ADVISORY WHICH IS IN EFFECT UNTIL 7 AM CDT
THURSDAY...
...HIGH RIP CURRENT RISK IN EFFECT UNTIL 7 PM CDT THIS EVENING...

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

* WHERE...Matagorda Islands and Brazoria Islands Counties.

* WHEN...For the Coastal Flood Advisory, until 7 AM CDT 
  Thursday. For the High Rip Current Risk, until 7 PM CDT this 
  evening.

* 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.

* ADDITIONAL DETAILS...Coastal flooding from Post-Tropical Cyclone
  Beta may result in tides running around 1 to 2 feet above normal
  through Thursday morning.

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.

&&

$$

TXZ214-313-335>338-231315-
/O.EXP.KHGX.CF.W.0004.000000T0000Z-200923T1200Z/
Chambers-Coastal Harris-Coastal Jackson-Coastal Matagorda-
Coastal Brazoria-Coastal Galveston-
714 AM CDT Wed Sep 23 2020

...COASTAL FLOOD WARNING HAS EXPIRED...

Coastal flood impacts are no longer expected across these
locations. Therefore, the Coastal Flood Warning was allowed to
expire. Continue to exercise caution due to possible minor 
ponding of water along some isolated locations. 

$$

TXZ438-232015-
/O.EXP.KHGX.RP.S.0044.000000T0000Z-200923T1200Z/
/O.NEW.KHGX.RP.S.0045.200923T1214Z-200924T0000Z/
/O.CON.KHGX.CF.W.0004.000000T0000Z-200924T1200Z/
Galveston Island and Bolivar Peninsula-
714 AM CDT Wed Sep 23 2020

...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 7 AM CDT
THURSDAY...
...HIGH RIP CURRENT RISK IN EFFECT UNTIL 7 PM CDT THIS EVENING...

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

* WHERE...Galveston Island and Bolivar Peninsula County.

* WHEN...For the Coastal Flood Warning, until 7 AM CDT Thursday. 
  For the High Rip Current Risk, until 7 PM CDT this 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.

* ADDITIONAL DETAILS...Ongoing coastal flooding from Post-
  Tropical Cyclone Beta will continue to affect these areas and
  result in tides running around 1 to 3 feet above normal through
  Thursday morning. Exercise caution along flooded areas.

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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 7:08 PM CDTFlash Flood WarningHGXBrazoria, Galveston, Harris82 min
Sep 21, 7:59 PM CDTAreal Flood AdvisoryHGXBrazoria, Fort Bend, Harris2 hr
Sep 21, 8:27 PM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Galveston, Harris3 hr
Sep 21, 8:48 PM CDTRiver Flood WarningHGXHarris16 hr
Sep 21, 8:49 PM CDTRiver Flood WarningHGXHarris11 hr
Sep 21, 8:52 PM CDTRiver Flood WarningHGXGalveston, Harris46 hr
Sep 21, 9:24 PM CDTAreal Flood AdvisoryHGXBrazoria, Fort Bend, Matagorda, Wharton3 hr
Sep 21, 9:41 PM CDTRiver Flood WarningHGXHarris10 hr
Sep 21, 9:51 PM CDTFlash Flood WarningHGXBrazoria, Matagorda, Wharton3 hr
Sep 21, 10:46 PM CDTAreal Flood AdvisoryHGXJackson, Matagorda, Wharton119 min
Sep 21, 11:17 PM CDTRiver Flood WarningHGXGalveston, Harris57 hr
Sep 21, 11:33 PM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Harris3 hr
Sep 22, 12:24 AM CDTFlash Flood WarningHGXColorado, Jackson, Wharton111 min
Sep 22, 1:18 AM CDTCoastal Flood WarningHGXBrazoria, Chambers, Galveston, Harris, Jackson, Matagorda35 hr
Sep 22, 1:56 AM CDTFlash Flood WarningHGXJackson3 hr
Sep 22, 2:06 AM CDTRiver Flood WarningHGXMatagorda, Wharton41 hr
Sep 22, 2:07 AM CDTRiver Flood WarningHGXJackson, Wharton10 hr
Sep 22, 2:25 AM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Harris3 hr
Sep 22, 3:09 AM CDTRiver Flood WarningHGXGalveston, Harris37 hr
Sep 22, 3:21 AM CDTAreal Flood WarningHGXHarris3 hr
Sep 22, 3:57 AM CDTRiver Flood WarningHGXBrazoria, Harris27 hr
Sep 22, 4:22 AM CDTRiver Flood WarningHGXBrazoria, Harris23 hr
Sep 22, 5:12 AM CDTRiver Flood WarningHGXHarris9 hr
Sep 22, 5:27 AM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Harris3 hr
Sep 22, 6:32 AM CDTRiver Flood WarningHGXHarris20 hr
Sep 22, 7:30 AM CDTRiver Flood WarningHGXHarris7 hr
Sep 22, 8:29 AM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Galveston, Harris4 hr
Sep 22, 9:03 AM CDTAreal Flood AdvisoryHGXBrazoria, Fort Bend, Galveston, Harris, Montgomery, Waller4 hr
Sep 22, 9:30 AM CDTRiver Flood WarningHGXHarris7 hr
Sep 22, 10:16 AM CDTSmall Craft AdvisoryHGX32 hr
Sep 22, 10:19 AM CDTFlash Flood WarningHGXHarris2 hr
Sep 22, 10:22 AM CDTRiver Flood WarningHGXBrazoria, Fort Bend, Wharton6 days
Sep 22, 12:31 PM CDTFlash Flood WarningHGXHarris10 hr
Sep 22, 12:36 PM CDTFlash Flood WarningHGXBrazoria, Fort Bend, Galveston, Harris4 hr
Sep 22, 12:55 PM CDTRiver Flood WarningHGXBrazoria, Harris24 hr
Sep 22, 4:31 PM CDTAreal Flood AdvisoryHGXBrazoria, Fort Bend, Galveston, Harris2 hr
Sep 22, 6:58 PM CDTAreal Flood AdvisoryHGXHarris, Waller51 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.