Alert archive / Texas / Tornado Warnings in 2007
Tornado Warning 34, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Jul 23, 2007, 6:59 PM CDT for Williamson County, Texas. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Jul 23, 2007, 6:59 PM CDT (23:59 UTC)
- Expired
- Jul 23, 2007, 7:34 PM CDT
- In force
- 35 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Williamson County, TX
The radar
The Ft Hood radar (KGRK), 18 km from the middle of the area, began a volume at 00:03 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
Fort Worth, TX (KFWD), launched 12:00Z, 12.0 hours before the alert went out and 229 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
- 1147 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 797 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- 52 m²/s²
- 0-3 km storm-relative helicity
- 123 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WFUS54 KEWX 232358 TOREWX TXC491-240045- /O.NEW.KEWX.TO.W.0034.070723T2359Z-070724T0045Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 659 PM CDT MON JUL 23 2007 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * TORNADO WARNING FOR... WILLIAMSON COUNTY IN SOUTH CENTRAL TEXAS... THIS INCLUDES THE CITIES OF...SERENADA...GEORGETOWN... * UNTIL 745 PM CDT * AT 654 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO NEAR JARRELL...OR ABOUT 10 MILES NORTHWEST OF GRANGER...MOVING SOUTHWEST AT 5 MPH. * THE TORNADO WILL BE NEAR... JARRELL BY 720 PM CDT... 7 MILES NORTH OF WEIR AND 7 MILES NORTHEAST OF SERENADA BY 745 PM CDT... IF YOU ARE IN A MOBILE HOME OR VEHICLE...GET OUT AND GO TO A STURDY SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. LAT...LON 3084 9741 3095 9758 3072 9783 3056 9757 $$
3 follow-up statements
000 WWUS54 KEWX 240007 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 707 PM CDT MON JUL 23 2007 TXC491-240045- /O.CON.KEWX.TO.W.0034.000000T0000Z-070724T0045Z/ WILLIAMSON TX- 707 PM CDT MON JUL 23 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR WILLIAMSON COUNTY... AT 703 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED JUST SOUTH OF JARRELL...OR ABOUT 9 MILES NORTHWEST OF GRANGER...MOVING SOUTHWEST AT 15 MPH. THE TORNADO WILL BE NEAR... WEIR BY 730 PM CDT... SERENADA BY 735 PM CDT... GEORGETOWN AND GEORGETOWN DAM BY 745 PM CDT... A VEHICLE IS EASILY ROLLED AND CRUSHED BY A TORNADO. DO NOT TRY TO OUTRUN ONE. IF NO STRONG BUILDING IS CLOSE...LEAVE YOUR VEHICLE AND TAKE SHELTER IN A DITCH OR LOW SPOT. COVER YOUR HEAD. LAT...LON 3084 9741 3095 9758 3072 9783 3056 9757 $$
000 WWUS54 KEWX 240022 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 720 PM CDT MON JUL 23 2007 TXC491-240045- /O.CON.KEWX.TO.W.0034.000000T0000Z-070724T0045Z/ WILLIAMSON TX- 720 PM CDT MON JUL 23 2007 ...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR WILLIAMSON COUNTY... AT 718 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO INDICATE A TORNADO. THIS TORNADO WAS LOCATED 5 MILES SOUTHWEST OF BARTLETT...OR ABOUT 3 MILES WEST OF GRANGER...MOVING SOUTH AT 20 MPH. THE TORNADO WILL BE NEAR... RURAL WILLIAMSON COUNTY AT 730 PM CDT THIS STORM SHOWS SIGNS OF WEAKENING...BUT IT COULD STILL PRODUCE A BRIEF TORNADO AS IT MOVES TOWARDS TAYLOR. LAT...LON 3084 9741 3095 9758 3072 9783 3056 9757 $$
000 WWUS54 KEWX 240034 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 734 PM CDT MON JUL 23 2007 TXC491-240044- /O.CAN.KEWX.TO.W.0034.000000T0000Z-070724T0045Z/ WILLIAMSON TX- 734 PM CDT MON JUL 23 2007 ...THE TORNADO WARNING FOR WILLIAMSON COUNTY IS CANCELLED... THUNDERSTORMS WITH HEAVY RAINFALL CONTINUE OVER WILLIAMSON COUNTY...BUT THE RADAR SIGNS OF A TORNADO HAVE VANISHED. FLASH FLOODING REMAINS LIKELY OVER PARTS OF WILLIAMSON COUNTY THIS EVENING. LAT...LON 3084 9741 3095 9758 3072 9783 3056 9757 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 23, 4:56 PM CDT | Flash Flood Warning | EWX | Bexar | 2 hr |
| Jul 23, 5:25 PM CDT | Flash Flood Warning | EWX | Burnet, Travis, Williamson | 3 hr |
| Jul 23, 5:42 PM CDT | Flash Flood Warning | EWX | Hays | 3 hr |
| Jul 23, 6:27 PM CDT | Flash Flood Warning | EWX | Comal, Guadalupe | 3 hr |
| Jul 23, 6:33 PM CDT | Flash Flood Warning | EWX | Blanco, Kendall | 3 hr |
| Jul 23, 6:57 PM CDT | Severe Thunderstorm Warning | EWX | Comal, Guadalupe | 37 min |
Nearby
Tornado Warnings in Texas, 2007Every tornado warning in 2007Tornadoes in 2007
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.