Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 4, NWS Austin/San Antonio, TX

February 19, 2017Comal County, Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Feb 19, 2017, 11:02 PM CST for Comal County, Guadalupe County, Texas. It was in force for 13 min. 1 report 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 19, 2017, 11:02 PM CST (05:02 UTC)
Expired: Feb 19, 2017, 11:15 PM CST
In force: 13 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Comal County, TX, Guadalupe County, TX

The radar

The Austin/San Antonio radar (KEWX), 15 km from the middle of the area, began a volume at 05:05 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 19, 11:06 PM CST	TSTM WND DMG	3 Nnw Solms, TX	MOSTLY JUNIPER AND CEDAR TREE DAMAGE. DIAMETER OF LIMBS FROM 5 INCHES UP TO OVER 1 FOOT.

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
Feb 19, 6:18 PM CST	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 5.0 hours before the alert went out and 230 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1800 J/kg
Mixed-layer CIN: -144 J/kg
Mixed-layer LCL: 663 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 178 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 9.8

Open this sounding in Storm Lab

The text

As transmitted.

391 
WFUS54 KEWX 200502
TOREWX
TXC091-187-200545-
/O.NEW.KEWX.TO.W.0004.170220T0502Z-170220T0545Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
1102 PM CST SUN FEB 19 2017

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  West central Guadalupe County in south central Texas...
  Southeastern Comal County in south central Texas...

* Until 1145 PM CST

* At 1102 PM CST, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located near
  Garden Ridge, or near Selma, moving northeast at 35 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...
  New Braunfels, Schertz, Cibolo, Garden Ridge, Santa Clara,
  Freiheit, Solms, Gruene and New Braunfels Regional Airport.

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 2956 9819 2967 9831 2982 9818 2969 9802
TIME...MOT...LOC 0502Z 225DEG 31KT 2968 9827 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MO

2 follow-up statements

399 
WWUS54 KEWX 200509
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1109 PM CST SUN FEB 19 2017

TXC187-200519-
/O.CAN.KEWX.TO.W.0004.000000T0000Z-170220T0545Z/
Guadalupe TX-
1109 PM CST SUN FEB 19 2017

...THE TORNADO WARNING FOR WEST CENTRAL GUADALUPE COUNTY IS
CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight CST for
south central Texas.

LAT...LON 2965 9819 2972 9824 2982 9818 2972 9806
TIME...MOT...LOC 0509Z 225DEG 46KT 2974 9818 

$$

TXC091-200545-
/O.CON.KEWX.TO.W.0004.000000T0000Z-170220T0545Z/
Comal TX-
1109 PM CST SUN FEB 19 2017

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 1145 PM CST FOR
SOUTHEASTERN COMAL COUNTY...

At 1109 PM CST, a severe squall line capable of producing both
tornadoes and extensive straight line wind damage was located near
New Braunfels, moving northeast at 50 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...
New Braunfels, Freiheit, Solms and Gruene. 

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 2965 9819 2972 9824 2982 9818 2972 9806
TIME...MOT...LOC 0509Z 225DEG 46KT 2974 9818 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

MO

766 
WWUS54 KEWX 200515
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
1115 PM CST SUN FEB 19 2017

TXC091-200524-
/O.CAN.KEWX.TO.W.0004.000000T0000Z-170220T0545Z/
Comal TX-
1115 PM CST SUN FEB 19 2017

...THE TORNADO WARNING FOR SOUTHEASTERN COMAL COUNTY IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until midnight CST for
south central Texas.

LAT...LON 2965 9819 2972 9824 2982 9818 2972 9806
TIME...MOT...LOC 0512Z 225DEG 31KT 2978 9814 

$$

MO

The 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, 11:22 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, 12:23 AM CST	Tornado Warning	EWX	Williamson	22 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, 2017 Every tornado warning in 2017 Tornadoes 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.