Alert archive / Texas / Wind Advisories in 2012

Wind Advisory 22, NWS Brownsville, TX

December 31, 20124 counties in Texas

NWS Brownsville, TX issued this wind advisory at Dec 31, 2012, 5:05 AM CST for 4 counties in Texas. It took effect at Dec 31, 2012, 10:00 AM CST. It was in force for 102 min.

The area

The counties it named.

The facts

Issued
Dec 31, 2012, 5:05 AM CST (11:05 UTC)
In effect from
Dec 31, 2012, 10:00 AM CST
Expired
Dec 31, 2012, 11:42 AM CST
In force
102 min
Issued by
NWS Brownsville, TX

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

The radar

The Brownsville radar (KBRO), 70 km from the middle of the area, began a volume at 11:07 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 00:00Z, 11.1 hours before the alert went out and 73 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 00:00Z on 2012-12-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 23 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 2012-12-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
23 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
166 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

146 
WWUS74 KBRO 311105
NPWBRO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BROWNSVILLE TX
505 AM CST MON DEC 31 2012

...STRONG SOUTH WINDS EXPECTED TODAY...

.THE COMBINATION OF A LARGE HIGH PRESSURE AREA TO OUR EAST AND A
SURFACE LOW PRESSURE AREA DEVELOPING OVER WESTERN AND CENTRAL
TEXAS WILL RESULT IN STRONG AND GUSTY SOUTHERLY WINDS ACROSS
PORTIONS OF DEEP SOUTH TEXAS LATER THIS MORNING AND INTO THIS
AFTERNOON. THESE STRONG WINDS WILL START TO WEAKEN DURING THE
EARLY EVENING HOURS. 

TXZ251-253>255-311915-
/O.NEW.KBRO.WI.Y.0022.121231T1600Z-121231T2200Z/
KENEDY-HIDALGO-INLAND WILLACY-INLAND CAMERON-
INCLUDING THE CITIES OF...SARITA...MCALLEN...EDINBURG...PHARR...
MISSION...WESLACO...RAYMONDVILLE...BROWNSVILLE...HARLINGEN
505 AM CST MON DEC 31 2012

...WIND ADVISORY IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CST
THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM THIS MORNING TO 4 PM CST
THIS AFTERNOON. 

* TIMING...THE SOUTH WINDS WILL INCREASE INTO THE 25 TO 35 MPH
  RANGE DURING THE LATE MORNING HOURS AND THESE STRONG SOUTH WINDS
  WILL PERSIST ON INTO THE AFTERNOON. THESE STRONG WINDS WILL
  START TO WEAKEN DURING THE EARLY EVENING HOURS FALLING BELOW THE
  WIND ADVISORY LEVELS.

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.

&&

$$
1 follow-up statement
955 
WWUS74 KBRO 311742
NPWBRO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE BROWNSVILLE TX
1142 AM CST MON DEC 31 2012

...WINDS NOT AS STRONG THIS AFTERNOON...

.LOW LEVEL JET HAS WEAKEN MORE THEN EARLIER THINKING AND EXTENSIVE
CLOUDS HAS LIMITED DIFFERENTIAL MIXING OF THE LOWER LEVELS OF THE
ATMOSPHERE. WINDS ARE EXPECTED TO BE WINDY BUT NOT STRONG ENOUGH
FOR WIND ADVISORY CONDITIONS. 

TXZ251-253>255-311845-
/O.CAN.KBRO.WI.Y.0022.000000T0000Z-121231T2200Z/
KENEDY-HIDALGO-INLAND WILLACY-INLAND CAMERON-
INCLUDING THE CITIES OF...SARITA...MCALLEN...EDINBURG...PHARR...
MISSION...WESLACO...RAYMONDVILLE...BROWNSVILLE...HARLINGEN
1142 AM CST MON DEC 31 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS CANCELLED THE
WIND ADVISORY. 

SOUTH WINDS OF 20 TO 30 MPH WITH SOME GUSTS TO 35 MPH ARE POSSIBLE
THROUGH 5 PM THE REMAINDER OF THE AFTERNOON. 

$$

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.