Alert archive / Texas / Wind Advisories in 2012

Wind Advisory 21, NWS Brownsville, TX

December 25, 20124 counties in Texas

NWS Brownsville, TX issued this wind advisory at Dec 25, 2012, 3:05 AM CST for 4 counties in Texas. It took effect at Dec 25, 2012, 12:00 PM CST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Dec 25, 2012, 3:05 AM CST (09:05 UTC)
In effect from
Dec 25, 2012, 12:00 PM CST
Expired
Dec 25, 2012, 6:00 PM CST
In force
6 hr
Issued by
NWS Brownsville, TX

Counties Brooks County, TX, Jim Hogg County, TX, Kenedy County, TX, Zapata County, TX

The radar

The Corpus Christi radar (KCRP), 126 km from the middle of the area, began a volume at 09:08 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, 9.1 hours before the alert went out and 135 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 2012-12-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 849 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 2012-12-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 58 square meters per square second.1939587897117Sfc1 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
849 J/kg
Mixed-layer CIN
-112 J/kg
Mixed-layer LCL
831 m above ground
0-6 km bulk shear
39 kt
0-1 km storm-relative helicity
58 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.6

Open this sounding in Storm Lab

The text

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

151 
WWUS74 KBRO 250905
NPWBRO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BROWNSVILLE TX
305 AM CST TUE DEC 25 2012

...STRONG NORTHWESTERLY WINDS BEHIND A COLD FRONTAL BOUNDARY WILL
AFFECT MAINLY THE NORTHERN RANCHLANDS OF DEEP SOUTH TEXAS TUESDAY AFTERNOON...

.COLD FRONT WILL SWEEP THROUGH THE REGION TODAY AND WITH STRONG
LOW LEVEL FLOW IN ITS WAKE...STRONG NORTHWESTERLY WINDS WILL
DEVELOP WITH SUSTAINED 25 TO 35 MPH WITH GUSTS UP TO 45 MPH
POSSIBLE. WINDY CONDITIONS WILL OCCUR IN THE AFTERNOON HOURS AND
WILL DECREASE SHORTLY AFTER SUNSET WITH THE LOSS OF DAYTIME
HEATING.

TXZ248>251-251715-
/O.NEW.KBRO.WI.Y.0021.121225T1800Z-121226T0000Z/
ZAPATA-JIM HOGG-BROOKS-KENEDY-
INCLUDING THE CITIES OF...ZAPATA...HEBBRONVILLE...FALFURRIAS...
SARITA
305 AM CST TUE DEC 25 2012

...WIND ADVISORY IN EFFECT FROM NOON TODAY TO 6 PM CST THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM NOON TODAY TO 6 PM CST THIS
EVENING. 

* TIMING...FROM 12 PM THROUGH 6 PM TUESDAY AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE
30 TO 39 MPH AND OR FREQUENT GUSTS WILL RANGE BETWEEN 40 AND
57 MPH.

&&

$$
2 follow-up statements
175 
WWUS74 KBRO 251710
NPWBRO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1110 AM CST TUE DEC 25 2012

...STRONG NORTHWEST WINDS DEVELOPING ACROSS THE NORTHERN RANCHLANDS
OF DEEP SOUTH TEXAS LATE THIS MORNING...

.A COLD FRONT CONTINUES TO SWEEP THROUGH THE REGION LATE THIS MORNING AND
WITH STRONG LOW LEVEL FLOW IN ITS WAKE...STRONG NORTHWESTERLY
WINDS WILL CONTINUE TO DEVELOP WITH SUSTAINED WINDS 25 TO 35 MPH
WITH GUSTS UP TO 45 MPH POSSIBLE. WINDY CONDITIONS WILL OCCUR IN
THE AFTERNOON HOURS AND WILL DECREASE SHORTLY AFTER SUNSET WITH
THE LOSS OF DAYTIME HEATING.

TXZ248>251-260000-
/O.CON.KBRO.WI.Y.0021.121225T1800Z-121226T0000Z/
ZAPATA-JIM HOGG-BROOKS-KENEDY-
INCLUDING THE CITIES OF...ZAPATA...HEBBRONVILLE...FALFURRIAS...
SARITA
1110 AM CST TUE DEC 25 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 PM CST THIS EVENING...

* TIMING...STRONG NORTHWEST WINDS WILL CONTINUE TO DEVELOP BETWEEN
  NOW AND 1 PM AND WILL CONTINUE THROUGH 6 PM THIS EVENING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST TO BE
30 TO 39 MPH AND OR FREQUENT GUSTS WILL RANGE BETWEEN 40 AND
57 MPH.

&&

$$

CASTILLO
803 
WWUS74 KBRO 260012
NPWBRO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BROWNSVILLE TX
612 PM CST TUE DEC 25 2012

TXZ248>251-260115-
/O.EXP.KBRO.WI.Y.0021.000000T0000Z-121226T0000Z/
ZAPATA-JIM HOGG-BROOKS-KENEDY-
INCLUDING THE CITIES OF...ZAPATA...HEBBRONVILLE...FALFURRIAS...
SARITA
612 PM CST TUE DEC 25 2012

...WIND ADVISORY HAS EXPIRED...

THE STRONG NORTH TO NORTHWEST WINDS OVER THE ADVISORY AREA WILL
START TO DIMINISH SLOWLY LATER TONIGHT. ACCORDINGLY...THE WIND
ADVISORY HAS BEEN ALLOWED TO EXPIRE.

$$

Nearby

Wind Advisories in Texas, 2012Every wind advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.