Alert archive / Texas / Wind Advisories in 2008

Wind Advisory 7, NWS Austin/San Antonio, TX

February 26, 200824 counties in Texas

NWS Austin/San Antonio, TX issued this wind advisory at Feb 26, 2008, 3:53 AM CST for 24 counties in Texas. It took effect at Feb 26, 2008, 6:00 AM CST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Feb 26, 2008, 3:53 AM CST (09:53 UTC)
In effect from
Feb 26, 2008, 6:00 AM CST
Expired
Feb 26, 2008, 3:00 PM CST
In force
9 hr
Issued by
NWS Austin/San Antonio, TX
All 24 counties

Atascosa County, TX, Bandera County, TX, Bastrop County, TX, Bexar County, TX, Blanco County, TX, Burnet County, TX, Caldwell County, TX, Comal County, TX, DeWitt County, TX, Fayette County, TX, Gillespie County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Kendall County, TX, Kerr County, TX, Lavaca County, TX, Lee County, TX, Llano County, TX, Medina County, TX, Travis County, TX, Williamson County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 16 km from the middle of the area, began a volume at 09:53 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, 9.9 hours before the alert went out and 245 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 2008-02-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1669 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 2008-02-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 325 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
1669 J/kg
Mixed-layer CIN
-436 J/kg
Mixed-layer LCL
1391 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
325 m²/s²
0-3 km storm-relative helicity
399 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.

000 
WWUS74 KEWX 260953
NPWEWX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
353 AM CST TUE FEB 26 2008

...GUSTY NORTH WINDS ARE EXPECTED TO INCREASE LATE THIS MORNING
AND EARLY THIS AFTERNOON...

.A STRONG HIGH PRESSURE SYSTEM WILL SPILL SOUTH ACROSS SOUTH
CENTRAL TEXAS TODAY. NORTH WINDS ARE EXPECTED TO BE ESPECIALLY
GUSTY LATE THIS MORNING ACROSS THE EASTERN HILL COUNTRY AND
ADJACENT AREAS OF SOUTH CENTRAL TEXAS ALONG AND EAST OF THE
BALCONES ESCARPMENT. EXPECT SUSTAINED WIND SPEEDS OF 20 TO 30 MPH
WITH HIGHER GUSTS TO AROUND 40 MPH. THE WINDS WILL GRADUALLY
DIMINISH DURING THE AFTERNOON HOURS.

TXZ171>173-186>194-204>209-220>225-262100-
/O.NEW.KEWX.WI.Y.0007.080226T1200Z-080226T2100Z/
LLANO-BURNET-WILLIAMSON-KERR-BANDERA-GILLESPIE-KENDALL-BLANCO-
HAYS-TRAVIS-BASTROP-LEE-MEDINA-BEXAR-COMAL-GUADALUPE-CALDWELL-
FAYETTE-ATASCOSA-WILSON-KARNES-GONZALES-DE WITT-LAVACA-
INCLUDING THE CITIES OF...LLANO...BURNET...GEORGETOWN...
KERRVILLE...BANDERA...FREDERICKSBURG...BOERNE...BLANCO...
SAN MARCOS...AUSTIN...BASTROP...GIDDINGS...HONDO...SAN ANTONIO...
NEW BRAUNFELS...SEGUIN...LOCKHART...LA GRANGE...PLEASANTON...
FLORESVILLE...KARNES CITY...GONZALES...CUERO...HALLETTSVILLE
353 AM CST TUE FEB 26 2008

...WIND ADVISORY IN EFFECT UNTIL 3 PM CST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT UNTIL 3 PM CST THIS AFTERNOON.

STRONG NORTH WINDS OF 20 TO 30 MPH WITH GUSTS TO NEAR 40 MPH CAN
BE EXPECTED THROUGH MID AFTERNOON. THE WINDS WILL DECREASE LATE
THIS AFTERNOON.

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 26 TO 39 MPH ARE
EXPECTED. THESE GUSTY WINDS WILL CREATE A TRAVEL HAZARD FOR THOSE
DRIVING HIGH PROFILE VEHICLES ALONG EAST-WEST ORIENTED ROADWAYS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 25, 9:25 PM CSTSevere Thunderstorm WarningEWXFayette35 min
Feb 25, 9:36 PM CSTSevere Thunderstorm WarningEWXFayette24 min

Nearby

Wind Advisories in Texas, 2008Every wind advisory in 2008

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.