Alert archive / Texas / Wind Advisories in 2011
Wind Advisory 10, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this wind advisory at Sep 4, 2011, 5:35 AM CDT for 9 counties in Texas. It took effect at Sep 4, 2011, 1:00 PM CDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Sep 4, 2011, 5:35 AM CDT (10:35 UTC)
- In effect from
- Sep 4, 2011, 1:00 PM CDT
- Expired
- Sep 4, 2011, 8:00 PM CDT
- In force
- 7 hr
- Issued by
- NWS Austin/San Antonio, TX
Counties Bastrop County, TX, Caldwell County, TX, DeWitt County, TX, Fayette County, TX, Gonzales County, TX, Lavaca County, TX, Lee County, TX, Travis County, TX, Williamson County, TX
The radar
The Austin/San Antonio radar (KEWX), 70 km from the middle of the area, began a volume at 10:34 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, 10.6 hours before the alert went out and 240 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.
- Mixed-layer CAPE
- 13 J/kg
- Mixed-layer CIN
- -323 J/kg
- Mixed-layer LCL
- 3119 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
738 WWUS74 KEWX 041035 NPWEWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 AM CDT SUN SEP 4 2011 ...A WIND ADVISORY IS IN EFFECT FROM 1 PM TO 6 PM THIS AFTERNOON OVER EASTERN PORTIONS OF SOUTH CENTRAL TEXAS...GENERALLY ALONG AND EAST OF U.S. HIGHWAY 183... .A COLD FRONT PUSHING SOUTHWARD INTO THE REGION THIS AFTERNOON COUPLED WITH MIXING OF STRONG NORTH WINDS TO THE SURFACE VIA TROPICAL STORM LEE'S BROAD CIRCULATION OF INFLUENCE WILL PRODUCE SUSTAINED AND GUSTY NORTH WINDS OF 25 TO 35 MPH. TXZ173-192>194-208-209-223>225-042300- /O.NEW.KEWX.WI.Y.0010.110904T1800Z-110904T2300Z/ WILLIAMSON-TRAVIS-BASTROP-LEE-CALDWELL-FAYETTE-GONZALES-DE WITT- LAVACA- INCLUDING THE CITIES OF...GEORGETOWN...AUSTIN...BASTROP... GIDDINGS...LOCKHART...LA GRANGE...GONZALES...CUERO... HALLETTSVILLE 535 AM CDT SUN SEP 4 2011 ...WIND ADVISORY IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING... THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 1 PM THIS AFTERNOON TO 6 PM CDT THIS EVENING. * EVENT...NORTH WINDS INCREASING TO 25 TO 35 MPH. * TIMING...1 PM TO 6 PM. * IMPACT...CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. TRASH CANS AND OTHER LIGHT OBJECTS LEFT UN-ANCHORED COULD BE BLOWN OVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 26 TO 39 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
1 follow-up statement
955 WWUS74 KEWX 042256 NPWEWX URGENT - WEATHER MESSAGE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 556 PM CDT SUN SEP 4 2011 ...A WIND ADVISORY IS IN EFFECT UNTIL 8 PM FOR EASTERN PORTIONS OF SOUTH CENTRAL TEXAS...GENERALLY ALONG AND EAST OF U.S. HIGHWAY 183... .A COLD FRONT PUSHING SOUTHWARD INTO THE REGION HAS COMBINED WITH TROPICAL STORM LEE'S BROAD CIRCULATION AND HAS RESULTED IN STRONG AND GUSTY NORTH WINDS. SUSTAINED WINDS NEAR 25 MPH WITH GUSTS REACHING 35 MPH WILL CONTINUE THROUGH THIS EVENING. THE STRONG WINDS AND GUSTS WILL GRADUALLY DECREASE AFTER SUNSET...BUT WINDS ARE EXPECTED TO REMAIN 15 TO 20 MPH THROUGH THE REST OF THE NIGHT. TXZ173-192>194-208-209-223>225-050100- /O.EXT.KEWX.WI.Y.0010.000000T0000Z-110905T0100Z/ WILLIAMSON-TRAVIS-BASTROP-LEE-CALDWELL-FAYETTE-GONZALES-DE WITT- LAVACA- INCLUDING THE CITIES OF...GEORGETOWN...AUSTIN...BASTROP... GIDDINGS...LOCKHART...LA GRANGE...GONZALES...CUERO... HALLETTSVILLE 556 PM CDT SUN SEP 4 2011 ...WIND ADVISORY NOW IN EFFECT UNTIL 8 PM CDT THIS EVENING... * EVENT...NORTH WINDS OF 25 TO 30 MPH. * TIMING...UNTIL 8 PM. * IMPACT...CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. TRASH CANS AND OTHER LIGHT OBJECTS LEFT UN- ANCHORED COULD BE BLOWN OVER. PRECAUTIONARY/PREPAREDNESS ACTIONS... A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 26 TO 39 MPH ARE EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT... ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION. && $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 10:54 AM CDT | Red Flag Warning | EWX | Atascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more | 35 hr |
Nearby
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.