Alert archive / Texas / Coastal Flood Statements in 2021

Coastal Flood Statement 7, NWS Brownsville, TX

May 1, 2021Kenedy County, Texas

NWS Brownsville, TX issued this coastal flood statement at May 1, 2021, 3:49 AM CDT for Kenedy County, Texas. It took effect at May 1, 2021, 9:00 AM CDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
May 1, 2021, 3:49 AM CDT (08:49 UTC)
In effect from
May 1, 2021, 9:00 AM CDT
Expired
May 1, 2021, 2:00 PM CDT
In force
5 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 08:50 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, 8.8 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 2021-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 42 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2021-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 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
42 J/kg
Mixed-layer CIN
-278 J/kg
Mixed-layer LCL
901 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

343 
WHUS44 KBRO 010849
CFWBRO

Coastal Hazard Message
National Weather Service Brownsville TX
349 AM CDT Sat May 1 2021

TXZ256-257-351-011700-
/O.NEW.KBRO.CF.S.0007.210501T1400Z-210501T1900Z/
Coastal Willacy-Coastal Cameron-Coastal Kenedy-
349 AM CDT Sat May 1 2021

* WHAT...Isolated minor coastal flooding expected.

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

* WHEN...From 9 AM this morning to 2 PM CDT this afternoon.

* 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...Isolated minor coastal flooding will occur
  for a couple of hours before and after high tide, which is at
  10:55 AM CDT this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Do not drive through flooded roadways.

&&

$$

Speece

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 10:53 PM CDTSpecial Weather StatementBROStarr52 min
Apr 30, 11:37 PM CDTSpecial Weather StatementBROHidalgo38 min
May 1, 7:15 AM CDTSpecial Weather StatementBROJim Hogg45 min
May 1, 7:22 AM CDTSpecial Weather StatementBROZapata38 min
May 1, 9:32 AM CDTSpecial Weather StatementBROStarr28 min
May 1, 5:11 PM CDTSpecial Weather StatementBROZapata64 min

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.