Alert archive / Texas / Wind Advisories in 2018

Wind Advisory 9, NWS Brownsville, TX

April 17, 2018Cameron County, Kenedy County, Willacy County, Texas

NWS Brownsville, TX issued this wind advisory at Apr 17, 2018, 1:17 PM CDT for Cameron County, Kenedy County, Willacy County, Texas. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Apr 17, 2018, 1:17 PM CDT (18:17 UTC)
Expired
Apr 17, 2018, 7:00 PM CDT
In force
6 hr
Issued by
NWS Brownsville, TX

Counties Cameron County, TX, Kenedy County, TX, Willacy County, TX

The radar

The Brownsville radar (KBRO), 69 km from the middle of the area, began a volume at 18:20 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

Brownsville Intl, TX (KBRO), launched 12:00Z, 6.3 hours before the alert went out and 71 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, Brownsville Intl, TX at 12:00Z on 2018-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Brownsville Intl, TX at 12:00Z on 2018-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -35 square meters per square second.193958Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
931 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-35 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

746 
WWUS74 KBRO 171817
NPWBRO

URGENT - WEATHER MESSAGE
National Weather Service Brownsville TX
117 PM CDT Tue Apr 17 2018

...Strong southeast winds along the coast this afternoon...

..A tight pressure gradient is resulting in strong south 
southeast winds across the lower Rio Grande Valley and coastal 
areas..

TXZ251-254>257-180000-
/O.NEW.KBRO.WI.Y.0009.180417T1817Z-180418T0000Z/
Kenedy-Inland Willacy-Inland Cameron-Coastal Willacy-
Coastal Cameron-
Including the cities of Sarita, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, and Laguna Vista
117 PM CDT Tue Apr 17 2018

...WIND ADVISORY IN EFFECT UNTIL 7 PM CDT THIS EVENING...

The National Weather Service in Brownsville has issued a Wind
Advisory, which is in effect until 7 PM CDT this evening. 

* TIMING...12 PM to 7 PM.

* WINDS...South southeast 30 to 40 mph with gusts to 45 mph.

* IMPACTS...Lightweight and unsecured objects will be easily 
  blown around and possibly damaged and small tree damage may 
  occur. Driving may become difficult, especially in high 
  profile vehicles on east to west roads and highways. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that winds of 30 to 39 MPH are expected.
Winds this strong can make driving difficult...especially for
high profile vehicles. Use extra caution.

&&

$$

19
1 follow-up statement
938 
WWUS74 KBRO 180005 AAA
NPWBRO

URGENT - WEATHER MESSAGE...UPDATED
National Weather Service Brownsville TX
705 PM CDT Tue Apr 17 2018

...Surface Winds Beginning to Diminish...

.Surface observations indicate that strong winds over the three
immediate coastal counties are beginning to diminish, and have
dropped below Wind Advisory criteria. Therefore, the Advisory has
been allowed to expire. 

TXZ251-254>257-180115-
/O.EXP.KBRO.WI.Y.0009.000000T0000Z-180418T0000Z/
Kenedy-Inland Willacy-Inland Cameron-Coastal Willacy-
Coastal Cameron-
Including the cities of Sarita, Raymondville, Brownsville, 
Harlingen, Port Mansfield, Port Isabel, South Padre Island, 
Laguna Heights, and Laguna Vista
705 PM CDT Tue Apr 17 2018

...WIND ADVISORY HAS EXPIRED...

Although the Wind Advisory is no longer in effect, breezy winds
generally between 15 and 20 mph are expected during the overnight
hours. 

$$

TOMASELLI

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 17, 3:42 AM CDTSmall Craft Advisory for WindsBRO24 hr

Nearby

Wind Advisories in Texas, 2018Every wind advisory in 2018

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.