Alert archive / Texas / Coastal Flood Statements in 2021

Coastal Flood Statement 4, NWS Brownsville, TX

April 27, 2021Kenedy County, Texas

NWS Brownsville, TX issued this coastal flood statement at Apr 27, 2021, 8:36 PM CDT for Kenedy County, Texas. It took effect at Apr 28, 2021, 3:00 AM CDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Apr 27, 2021, 8:36 PM CDT (01:36 UTC)
In effect from
Apr 28, 2021, 3:00 AM CDT
Expired
Apr 28, 2021, 9:00 AM CDT
In force
6 hr
Issued by
NWS Brownsville, TX

County Kenedy County, TX

The radar

The Corpus Christi radar (KCRP), 96 km from the middle of the area, began a volume at 01:39 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, 1.6 hours before the alert went out and 94 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 2021-04-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1372 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 00:00Z on 2021-04-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 110 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
1372 J/kg
Mixed-layer CIN
-294 J/kg
Mixed-layer LCL
713 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
110 m²/s²
0-3 km storm-relative helicity
255 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

As transmitted.

666 
WHUS44 KBRO 280136
CFWBRO

Coastal Hazard Message
National Weather Service Brownsville TX
836 PM CDT Tue Apr 27 2021

TXZ256-257-351-281200-
/O.NEW.KBRO.CF.S.0004.210428T0800Z-210428T1400Z/
Coastal Willacy-Coastal Cameron-Coastal Kenedy-
836 PM CDT Tue Apr 27 2021

* WHAT...Isolated minor coastal flooding expected.

* WHERE...Coastal Kenedy, Coastal Cameron and Coastal Willacy 
  Counties.

* WHEN...From 3 AM CDT Wednesday through 9 AM CDT.

* IMPACTS...Wave run-up may approach the dunes along narrow 
  beaches. Beach equipment, such as umbrellas and chairs, could 
  be moved by waves. Vehicles driving along narrow beaches may 
  experience higher water levels. Elevated water levels may also 
  occur across the Laguna Madre and South Bay, and along State 
  Highway 4 west of Boca Chica State Park.

* ADDITIONAL DETAILS...Minor coastal flooding will be most likely
  around high tide Wednesday morning, which is at 6:29 AM CDT.
  Water levels between 1.00 and 1.20 ft MHHW are expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$
2 follow-up statements
602 
WHUS44 KBRO 280803
CFWBRO

Coastal Hazard Message
National Weather Service Brownsville TX
303 AM CDT Wed Apr 28 2021

TXZ256-257-351-281815-
/O.NEW.KBRO.RP.S.0022.210428T1200Z-210429T0000Z/
/O.CON.KBRO.CF.S.0004.000000T0000Z-210428T1400Z/
Coastal Willacy-Coastal Cameron-Coastal Kenedy-
303 AM CDT Wed Apr 28 2021

...HIGH RIP CURRENT RISK IN EFFECT FROM 7 AM CDT THIS MORNING 
THROUGH THIS EVENING...
...MINOR COASTAL FLOODING POSSIBLE ALONG THE LOWER TEXAS COAST 
UNTIL 9 AM CDT THIS MORNING... 

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

* WHERE...Coastal Willacy, Coastal Cameron and Coastal Kenedy 
  Counties.

* WHEN...For the High Rip Current Risk, from 7 AM CDT this morning
  through this evening. For the Coastal Flood Statement until 9 
  AM CDT this morning.

* IMPACTS...Wave run-up may approach the dunes along narrow
  beaches. Beach equipment, such as umbrellas and chairs, could be
  moved by waves. Vehicles driving along narrow beaches may
  experience higher water levels. Elevated water levels may also
  occur across the Laguna Madre and South Bay. 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.

&&

$$

56
170 
WHUS44 KBRO 281404
CFWBRO

Coastal Hazard Message
National Weather Service Brownsville TX
904 AM CDT Wed Apr 28 2021

TXZ256-257-351-290000-
/O.EXP.KBRO.CF.S.0004.000000T0000Z-210428T1400Z/
/O.CON.KBRO.RP.S.0022.000000T0000Z-210429T0000Z/
Coastal Willacy-Coastal Cameron-Coastal Kenedy-
904 AM CDT Wed Apr 28 2021

...HIGH RIP CURRENT RISK REMAINS IN EFFECT UNTIL 7 PM CDT THIS
EVENING...

* WHAT...Dangerous rip currents.

* WHERE...Coastal Willacy, Coastal Cameron and Coastal Kenedy 
  Counties.

* WHEN...For the High Rip Current Risk, from 7 AM CDT this morning
  through this evening.

* IMPACTS...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.

&&

$$

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 28, 3:03 AM CDTRip Current StatementBROKenedy16 hr
Apr 28, 3:04 AM CDTWind AdvisoryBROCameron, Hidalgo, Kenedy, Willacy16 hr
Apr 28, 3:06 AM CDTSmall Craft AdvisoryBRO39 hr

Nearby

Coastal Flood Statements in Texas, 2021Every coastal flood 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.