Alert archive / Texas / Tornado Warnings in 2017
Tornado Warning 8, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Feb 20, 2017, 12:23 AM CST for Williamson County, Texas. It was in force for 22 min. 5 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Feb 20, 2017, 12:23 AM CST (06:23 UTC)
- Expired
- Feb 20, 2017, 12:45 AM CST
- In force
- 22 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Tornado
- Radar indicated
- Hail
- 0.75 in
County Williamson County, TX
The radar
The Ft Hood radar (KGRK), 21 km from the middle of the area, began a volume at 06:23 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Feb 20, 12:24 AM CST | TSTM WND DMG | 3 Sse Taylor, TX | MEDIA VIEWER REPORTED HOUSE SIDING AND ROOF DAMAGE. |
| Feb 20, 12:25 AM CST | TORNADO | 5 Wsw Thrall, TX | A TORNADO CAUSED DAMAGE FROM 5 WSW OF THRALL TO 4 ENE OF THRALL. THE MOST SIGNIFICANT DAMAGE WAS TO A METAL BUILDING SYSTEM HOME...AT LEAST FIVE OTHER SINGLE FAMILY HOMES...AND 12 RAILROAD CARS THAT WERE BLOWN OFF THE TRACKS EAST OF THRALL. |
| Feb 20, 12:28 AM CST | TSTM WND GST 138 | 2 Nw Thrall, TX | *** 2 INJ *** AT LEAST 10 HOMES WERE SIGNIFICANTLY DAMAGED ALONG A PATH FROM 2NW OF THRALL TO 2N OF THRALL. IN ADDITION...AT LEAST A DOZEN FARM OUTBUILDINGS...MOBILE HOMES...AND RVS WERE SEVERELY DAMAGED OR DESTROYED. A COUPLE SUFFERED MINOR INJURIES IN AN RV. |
| Feb 20, 12:28 AM CST | TORNADO | 5 Sw Thrall, TX | EF-2 DAMAGE WAS FOUND IN THE VICINITY OF THRALL. THE MOST SIGNIFICANT DAMAGE WAS TO A 3-BIN GRAIN STORAGE FACILITY WHERE THE BINS WERE COMPLETELY DESTROYED AND SWEPT FROM THEIR FOUNDATIONS. |
| Feb 20, 12:36 AM CST | TSTM WND DMG | Thrall, TX | MEDIA AND SOCIAL MEDIAL REPORTING TRAIN DERAILMENT. PICTURE SHOWS AT LEAST ONE CAR TIPPED OVER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jan 2, 1:39 AM CST | Severe Thunderstorm Watch | SPC | 59 days |
| Feb 19, 6:18 PM CST | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 6.4 hours before the alert went out and 254 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
- 758 J/kg
- Mixed-layer CIN
- -28 J/kg
- Mixed-layer LCL
- 896 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 209 m²/s²
- 0-3 km storm-relative helicity
- 274 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 10.5
The text
As transmitted.
112
WFUS54 KEWX 200623
TOREWX
TXC491-200645-
/O.NEW.KEWX.TO.W.0008.170220T0623Z-170220T0645Z/
BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
1223 AM CST MON FEB 20 2017
The National Weather Service in Austin San Antonio has issued a
* Tornado Warning for...
Southeastern Williamson County in south central Texas...
* Until 1245 AM CST
* At 1223 AM CST, a severe thunderstorm capable of producing a
tornado was located near Taylor, moving east at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed.
Damage to roofs, windows, and vehicles will occur. Tree
damage is likely.
* Locations impacted include...
Taylor, Thrall, Coupland, Granger Dam, Laneport, Noack, Hoxie,
Beyarsville, Waterloo, Hare and Sandoval.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3074 9727 3047 9716 3044 9722 3040 9733
3042 9736 3042 9738 3044 9740 3060 9751
3076 9732
TIME...MOT...LOC 0623Z 250DEG 28KT 3052 9740
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MO2 follow-up statements
453
WWUS54 KEWX 200629
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1229 AM CST MON FEB 20 2017
TXC491-200645-
/O.CON.KEWX.TO.W.0008.000000T0000Z-170220T0645Z/
Williamson TX-
1229 AM CST MON FEB 20 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CST FOR
SOUTHEASTERN WILLIAMSON COUNTY...
At 1229 AM CST, a severe thunderstorm capable of producing a tornado
was located over Thrall, or near Taylor, moving northeast at 60 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Taylor, Thrall, Granger Dam, Laneport, Noack, Hoxie, Beyarsville,
Waterloo, Hare and Sandoval.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3074 9727 3047 9716 3043 9725 3042 9727
3065 9745 3076 9732
TIME...MOT...LOC 0629Z 245DEG 51KT 3057 9731
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MO100
WWUS54 KEWX 200633
SVSEWX
Severe Weather Statement
National Weather Service Austin/San Antonio TX
1233 AM CST MON FEB 20 2017
TXC491-200645-
/O.CON.KEWX.TO.W.0008.000000T0000Z-170220T0645Z/
Williamson TX-
1233 AM CST MON FEB 20 2017
...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1245 AM CST FOR
SOUTHEASTERN WILLIAMSON COUNTY...
At 1232 AM CST, a severe thunderstorm capable of producing a tornado
was located over Thrall, or near Taylor, moving northeast at 30 mph.
HAZARD...Tornado.
SOURCE...Radar indicated rotation.
IMPACT...Flying debris will be dangerous to those caught without
shelter. Mobile homes will be damaged or destroyed. Damage
to roofs, windows, and vehicles will occur. Tree damage is
likely.
Locations impacted include...
Taylor, Thrall, Granger Dam, Laneport, Noack, Hoxie, Beyarsville,
Waterloo, Hare and Sandoval.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.
This cluster of thunderstorms is capable of producing tornadoes and
widespread significant wind damage. Do not wait to see or hear the
tornado. For your protection move to an interior room on the lowest
floor of a building.
&&
LAT...LON 3074 9727 3047 9716 3043 9725 3042 9727
3065 9745 3076 9732
TIME...MOT...LOC 0632Z 212DEG 27KT 3061 9731
TORNADO...RADAR INDICATED
HAIL...<.75IN
$$
MOThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 19, 6:03 PM CST | Areal Flood Advisory | EWX | Edwards, Kinney, Maverick | 3 hr |
| Feb 19, 6:29 PM CST | Severe Thunderstorm Warning | EWX | Edwards, Kinney | 46 min |
| Feb 19, 6:33 PM CST | Special Weather Statement | EWX | Kinney | 42 min |
| Feb 19, 7:08 PM CST | Special Weather Statement | EWX | Kinney, Maverick | 52 min |
| Feb 19, 7:15 PM CST | Special Weather Statement | EWX | Real | 45 min |
| Feb 19, 7:20 PM CST | Severe Thunderstorm Warning | EWX | Edwards, Real | 55 min |
| Feb 19, 7:42 PM CST | Flash Flood Warning | EWX | Kinney, Maverick | 3 hr |
| Feb 19, 7:57 PM CST | Severe Thunderstorm Warning | EWX | Edwards, Kerr, Real | 33 min |
| Feb 19, 8:06 PM CST | Severe Thunderstorm Warning | EWX | Dimmit, Kinney, Maverick, Uvalde, Zavala | 39 min |
| Feb 19, 8:09 PM CST | Special Weather Statement | EWX | Dimmit | 51 min |
| Feb 19, 8:13 PM CST | Special Weather Statement | EWX | Kerr, Real | 62 min |
| Feb 19, 8:42 PM CST | Special Weather Statement | EWX | Bandera, Frio, Medina | 48 min |
| Feb 19, 9:10 PM CST | Severe Thunderstorm Warning | EWX | Medina | 50 min |
| Feb 19, 9:31 PM CST | Special Weather Statement | EWX | Atascosa, Bandera, Bexar, Frio, Gillespie, Kendall and 1 more | 59 min |
| Feb 19, 10:16 PM CST | Areal Flood Advisory | EWX | Bexar | 3 hr |
| Feb 19, 10:26 PM CST | Special Weather Statement | EWX | Atascosa, Bexar, Comal, Guadalupe, Karnes, Wilson | 64 min |
| Feb 19, 10:31 PM CST | Special Weather Statement | EWX | Blanco, Burnet, Hays, Travis, Williamson | 59 min |
| Feb 19, 10:34 PM CST | Severe Thunderstorm Warning | EWX | Bexar, Comal, Guadalupe, Wilson | 40 min |
| Feb 19, 10:39 PM CST | Tornado Warning | EWX | Bexar, Comal, Guadalupe | 36 min |
| Feb 19, 10:56 PM CST | Severe Thunderstorm Warning | EWX | Bexar, Comal, Gonzales, Guadalupe, Hays, Wilson | 42 min |
| Feb 19, 11:01 PM CST | Areal Flood Advisory | EWX | Bexar, Blanco, Comal, Kendall | 119 min |
| Feb 19, 11:02 PM CST | Tornado Warning | EWX | Comal, Guadalupe | 13 min |
| Feb 19, 11:22 PM CST | Areal Flood Advisory | EWX | Blanco, Burnet, Hays, Travis, Williamson | 113 min |
| Feb 19, 11:26 PM CST | Flash Flood Warning | EWX | Bexar | 4 hr |
| Feb 19, 11:29 PM CST | Tornado Warning | EWX | Bastrop, Caldwell, Hays, Travis | 46 min |
| Feb 19, 11:31 PM CST | Tornado Warning | EWX | Caldwell, Guadalupe, Hays | 29 min |
| Feb 19, 11:38 PM CST | Special Weather Statement | EWX | Burnet, Travis, Williamson | 37 min |
| Feb 19, 11:40 PM CST | Areal Flood Advisory | EWX | Caldwell, Guadalupe, Hays, Travis | 2 hr |
| Feb 19, 11:53 PM CST | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell, Hays, Travis | 37 min |
| Feb 20, 12:05 AM CST | Tornado Warning | EWX | Bastrop, Travis | 25 min |
| Feb 20, 12:19 AM CST | Areal Flood Advisory | EWX | Bastrop, Caldwell, Lee, Travis, Williamson | 116 min |
| Feb 20, 12:22 AM CST | Severe Thunderstorm Warning | EWX | Bastrop, Lee, Travis, Williamson | 53 min |
| Feb 20, 12:40 AM CST | Special Weather Statement | EWX | Fayette, Gonzales | 50 min |
| Feb 20, 1:01 AM CST | Special Weather Statement | EWX | Fayette, Lavaca, Lee | 44 min |
| Feb 20, 1:17 AM CST | River Flood Warning | EWX | Bexar, Wilson | 43 hr |
| Feb 20, 1:38 AM CST | Areal Flood Advisory | EWX | Bastrop, DeWitt, Fayette, Lavaca, Lee | 112 min |
| Feb 20, 1:48 AM CST | Special Weather Statement | EWX | Fayette, Lavaca | 42 min |
| Feb 20, 2:02 AM CST | Special Weather Statement | EWX | DeWitt, Gonzales, Guadalupe, Karnes, Wilson | 73 min |
| Feb 20, 2:20 AM CST | Areal Flood Advisory | EWX | Atascosa, Guadalupe, Karnes, Wilson | 115 min |
| Feb 20, 2:53 AM CST | Areal Flood Advisory | EWX | Bastrop, Caldwell, Fayette, Gonzales, Lee, Travis and 1 more | 112 min |
| Feb 20, 3:14 AM CST | Areal Flood Advisory | EWX | Bexar | 106 min |
| Feb 20, 3:35 AM CST | Areal Flood Advisory | EWX | Bastrop, DeWitt, Fayette, Karnes, Lavaca, Lee | 3 hr |
| Feb 20, 9:58 AM CST | River Flood Warning | EWX | Karnes, Wilson | 48 hr |
Nearby
Tornado Warnings in Texas, 2017Every tornado warning in 2017Tornadoes in 2017
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.