Alert archive / Texas / Tornado Warnings in 2016

Tornado Warning 5, NWS Austin/San Antonio, TX

April 17, 2016Atascosa County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Apr 17, 2016, 4:14 PM CDT for Atascosa County, Texas. It was in force for 31 min. 2 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: Apr 17, 2016, 4:14 PM CDT (21:14 UTC)
Expired: Apr 17, 2016, 4:45 PM CDT
In force: 31 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Atascosa County, TX

The radar

The Austin/San Antonio radar (KEWX), 120 km from the middle of the area, began a volume at 21:13 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
Apr 17, 4:22 PM CDT	HAIL 1	4 E Charlotte, TX
Apr 17, 4:38 PM CDT	HAIL 1	Charlotte, TX

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 9.2 hours before the alert went out and 181 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: 2152 J/kg
Mixed-layer CIN: -48 J/kg
Mixed-layer LCL: 501 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 50 m²/s²
0-3 km storm-relative helicity: 79 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

621 
WFUS54 KEWX 172114
TOREWX
TXC013-172145-
/O.NEW.KEWX.TO.W.0005.160417T2114Z-160417T2145Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
414 PM CDT SUN APR 17 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN ATASCOSA COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 445 PM CDT
    
* AT 414 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
  WAS LOCATED NEAR CHARLOTTE...MOVING NORTH AT 10 MPH.

  HAZARD...TORNADO AND QUARTER SIZE HAIL. 

  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. 

* THIS DANGEROUS STORM WILL BE NEAR...
  CHARLOTTE AROUND 445 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE DAVIS...
DOBROWOLSKI AND AMPHION.

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.

&&

LAT...LON 2869 9877 2878 9880 2896 9880 2901 9860
      2873 9857
TIME...MOT...LOC 2114Z 167DEG 10KT 2878 9869 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

LJH

1 follow-up statement

921 
WWUS54 KEWX 172133
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
433 PM CDT SUN APR 17 2016

TXC013-172145-
/O.CON.KEWX.TO.W.0005.000000T0000Z-160417T2145Z/
ATASCOSA TX-
433 PM CDT SUN APR 17 2016

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 445 PM CDT FOR
SOUTHWESTERN ATASCOSA COUNTY...
    
AT 432 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR CHARLOTTE...MOVING NORTH AT 5 MPH. QUARTER SIZE
HAIL HAS BEEN OBSERVED WITH THIS STORM AS WELL. 

HAZARD...TORNADO AND QUARTER SIZE HAIL. 

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. 

THIS DANGEROUS STORM WILL BE NEAR...
  CHARLOTTE AROUND 445 PM CDT. 

OTHER LOCATIONS IMPACTED BY THIS TORNADIC THUNDERSTORM INCLUDE DAVIS
AND DOBROWOLSKI.

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.

&&

LAT...LON 2875 9878 2878 9880 2892 9880 2895 9859
      2877 9857
TIME...MOT...LOC 2132Z 165DEG 6KT 2881 9870 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

LJH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 17, 3:53 AM CDT	Special Weather Statement	EWX	Edwards	67 min
Apr 17, 6:30 AM CDT	Areal Flood Advisory	EWX	Edwards, Val Verde	3 hr
Apr 17, 8:56 AM CDT	Special Weather Statement	EWX	Real	64 min
Apr 17, 10:03 AM CDT	Areal Flood Advisory	EWX	Edwards, Kinney	3 hr
Apr 17, 11:11 AM CDT	River Flood Warning	EWX	Val Verde	23 hr
Apr 17, 12:10 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Apr 17, 12:30 PM CDT	Special Weather Statement	EWX	Uvalde	45 min
Apr 17, 12:48 PM CDT	Flash Flood Warning	EWX	Bastrop	6 hr
Apr 17, 1:15 PM CDT	Special Weather Statement	EWX	Real	45 min
Apr 17, 1:59 PM CDT	Special Weather Statement	EWX	Real	46 min
Apr 17, 2:23 PM CDT	Areal Flood Advisory	EWX	Travis, Williamson	6 hr
Apr 17, 2:27 PM CDT	Areal Flood Advisory	EWX	Real, Uvalde	3 hr
Apr 17, 2:51 PM CDT	Areal Flood Advisory	EWX	Hays, Travis	3 hr
Apr 17, 3:09 PM CDT	Special Weather Statement	EWX	Bexar	51 min
Apr 17, 3:18 PM CDT	Special Weather Statement	EWX	Blanco	27 min
Apr 17, 3:34 PM CDT	Special Weather Statement	EWX	Atascosa	26 min
Apr 17, 4:00 PM CDT	Special Weather Statement	EWX	Bexar	45 min
Apr 17, 4:04 PM CDT	Special Weather Statement	EWX	Atascosa	41 min
Apr 17, 4:23 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Comal, Kendall	52 min
Apr 17, 4:31 PM CDT	Special Weather Statement	EWX	Williamson	44 min
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Gonzales	4 days
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	DeWitt	24 hr
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Comal, Guadalupe	26 hr
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Comal, Gonzales, Guadalupe	20 hr
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Comal, Guadalupe	29 hr
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Hays	35 hr
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Caldwell, Gonzales	3 days
Apr 17, 4:41 PM CDT	River Flood Warning	EWX	Caldwell, Gonzales	46 hr
Apr 17, 4:45 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Kendall	3 hr
Apr 17, 4:45 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Frio	45 min
Apr 17, 5:10 PM CDT	Special Weather Statement	EWX	Gillespie	50 min
Apr 17, 5:13 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Kendall, Kerr	22 min
Apr 17, 5:15 PM CDT	Areal Flood Advisory	EWX	Williamson	3 hr
Apr 17, 5:26 PM CDT	Special Weather Statement	EWX	Frio	34 min
Apr 17, 5:27 PM CDT	River Flood Warning	EWX	Bexar	34 hr
Apr 17, 5:27 PM CDT	River Flood Warning	EWX	Bexar	58 hr
Apr 17, 5:27 PM CDT	River Flood Warning	EWX	Bexar	36 hr
Apr 17, 5:27 PM CDT	River Flood Warning	EWX	Bexar, Guadalupe	32 hr
Apr 17, 5:27 PM CDT	River Flood Warning	EWX	Bexar, Wilson	59 hr
Apr 17, 5:27 PM CDT	River Flood Warning	EWX	Karnes	4 days
Apr 17, 5:45 PM CDT	Severe Thunderstorm Warning	EWX	Frio	30 min
Apr 17, 5:48 PM CDT	Special Weather Statement	EWX	Kendall	27 min
Apr 17, 5:52 PM CDT	Flash Flood Warning	EWX	Williamson	4 hr
Apr 17, 6:15 PM CDT	Special Weather Statement	EWX	Bandera	30 min
Apr 17, 6:30 PM CDT	Special Weather Statement	EWX	Medina	30 min
Apr 17, 6:44 PM CDT	Special Weather Statement	EWX	Bandera	31 min
Apr 17, 6:59 PM CDT	Special Weather Statement	EWX	Uvalde	31 min

Nearby

Tornado Warnings in Texas, 2016 Every tornado warning in 2016 Tornadoes in 2016

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.