Alert archive / Texas / High Wind Warnings in 2012

High Wind Warning 1, NWS Austin/San Antonio, TX

May 4, 2012Kinney County, Maverick County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this high wind warning at May 4, 2012, 12:48 AM CDT for Kinney County, Maverick County, Val Verde County, Texas. It was in force for 2 hr. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 4, 2012, 12:48 AM CDT (05:48 UTC)
Expired
May 4, 2012, 3:00 AM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX

Counties Kinney County, TX, Maverick County, TX, Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 34 km from the middle of the area, began a volume at 05:51 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.

What was reported inside it

TimeReportWhereRemark
May 4, 12:50 AM CDTTSTM WND DMGEagle Pass, TXNUMEROUS TREES... POWER LINES... LIGHT POLES... STREET SIGNS BLOWN DOWN IN EAGLE PASS

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 5.8 hours before the alert went out and 21 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, Del Rio, TX at 00:00Z on 2012-05-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3364 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, Del Rio, TX at 00:00Z on 2012-05-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 20 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
3364 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1573 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
20 m²/s²
0-3 km storm-relative helicity
27 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

423 
WWUS74 KEWX 040548
NPWEWX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1248 AM CDT FRI MAY 4 2012

...STRONG WINDS AHEAD OF THUNDERSTORMS OVER THE RIO GRANDE PLAINS...

.WINDS ARE GUSTING UP TO 60 MPH AHEAD OF THUNDERSTORMS MOVING
ACROSS THE RIO GRANDE PLAINS THIS MORNING. THESE WINDS SHOULD
SUBSIDE QUICKLY AS CONVECTION DECREASES.

TXZ183-202-217-040800-
/O.NEW.KEWX.HW.W.0001.120504T0548Z-120504T0800Z/
VAL VERDE-KINNEY-MAVERICK-
INCLUDING THE CITIES OF...DEL RIO...BRACKETTVILLE...EAGLE PASS
1248 AM CDT FRI MAY 4 2012

...HIGH WIND WARNING IN EFFECT UNTIL 3 AM CDT EARLY THIS
MORNING...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
HIGH WIND WARNING...WHICH IS IN EFFECT UNTIL 3 AM CDT EARLY THIS
MORNING. 

* TIMING...UNTIL 3 AM.

* WINDS...GUSTS UP TO 60 MPH.

* IMPACTS...DAMAGE TO WEAK STRUCTURES AND PLANTS IS POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. SUSTAINED WIND SPEEDS OF AT LEAST 40 MPH FOR ONE
HOUR WITH GUSTS OF 58 MPH OR MORE CAN BE EXPECTED WHICH WILL LEAD
TO PROPERTY DAMAGE.

&&

$$

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 4, 12:46 AM CDTSevere Thunderstorm WarningEWXMaverick29 min
May 4, 1:31 AM CDTSevere Thunderstorm WarningEWXMaverick, Zavala44 min

Nearby

High Wind Warnings in Texas, 2012Every high wind warning in 2012

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.