Alert archive / Texas / Tornado Warnings in 2015

Tornado Warning 3, NWS Austin/San Antonio, TX

April 27, 2015Frio County, Medina County, Uvalde County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Apr 27, 2015, 12:38 AM CDT for Frio County, Medina County, Uvalde County, Texas. It was in force for 52 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: Apr 27, 2015, 12:38 AM CDT (05:38 UTC)
Expired: Apr 27, 2015, 1:30 AM CDT
In force: 52 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Frio County, TX, Medina County, TX, Uvalde County, TX

The radar

The Laughlin AFB radar (KDFX), 88 km from the middle of the area, began a volume at 05:38 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 27, 12:44 AM CDT	TSTM WND GST 55	Hondo, TX

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
Apr 26, 7:59 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Del Rio, TX (KDLF), launched 00:00Z, 5.6 hours before the alert went out and 143 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: 120 J/kg
Mixed-layer CIN: -130 J/kg
Mixed-layer LCL: 3554 m above ground
0-6 km bulk shear: 80 kt
0-1 km storm-relative helicity: 89 m²/s²
0-3 km storm-relative helicity: 243 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

803 
WFUS54 KEWX 270538
TOREWX
TXC163-325-463-270630-
/O.NEW.KEWX.TO.W.0003.150427T0538Z-150427T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1238 AM CDT MON APR 27 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN MEDINA COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHWESTERN FRIO COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN UVALDE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 130 AM CDT
    
* AT 1237 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS LOCATED 7 MILES SOUTH OF SABINAL...OR 16 MILES EAST OF
  UVALDE...MOVING SOUTHEAST AT 40 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. 

* THIS DANGEROUS STORM WILL BE NEAR...
  FRIO TOWN AROUND 105 AM CDT.
  YANCEY AROUND 110 AM CDT.

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 2904 9941 2909 9942 2909 9950 2916 9962
      2935 9958 2937 9901 2889 9917
TIME...MOT...LOC 0537Z 295DEG 34KT 2922 9951 

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

$$

CP

2 follow-up statements

882 
WWUS54 KEWX 270556
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1256 AM CDT MON APR 27 2015

TXC463-270603-
/O.CAN.KEWX.TO.W.0003.000000T0000Z-150427T0630Z/
UVALDE TX-
1256 AM CDT MON APR 27 2015

...THE TORNADO WARNING FOR SOUTHEASTERN UVALDE COUNTY IS CANCELLED...
    
THE TORNADIC THUNDERSTORM WHICH PROMPTED THE WARNING HAS MOVED OUT 
OF THE UVALDE COUNTY. THEREFORE THE WARNING HAS BEEN CANCELLED.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 200 AM CDT FOR
SOUTH CENTRAL TEXAS.

LAT...LON 2904 9941 2934 9940 2937 9901 2889 9917
TIME...MOT...LOC 0553Z 294DEG 38KT 2914 9931 

$$

TXC163-325-270630-
/O.CON.KEWX.TO.W.0003.000000T0000Z-150427T0630Z/
MEDINA TX-FRIO TX-
1256 AM CDT MON APR 27 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR
SOUTHWESTERN MEDINA AND NORTHWESTERN FRIO COUNTIES...
    
AT 1253 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED 8 MILES NORTH OF FRIO TOWN...OR 17 MILES SOUTHWEST OF
HONDO...MOVING SOUTHEAST AT 45 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. 

THIS DANGEROUS STORM WILL BE NEAR...
  YANCEY AROUND 105 AM CDT.

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 2904 9941 2934 9940 2937 9901 2889 9917
TIME...MOT...LOC 0553Z 294DEG 38KT 2914 9931 

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

$$

CP

244 
WWUS54 KEWX 270612
SVSEWX

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
112 AM CDT MON APR 27 2015

TXC163-325-270630-
/O.CON.KEWX.TO.W.0003.000000T0000Z-150427T0630Z/
MEDINA TX-FRIO TX-
112 AM CDT MON APR 27 2015

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR SOUTH
CENTRAL MEDINA AND NORTH CENTRAL FRIO COUNTIES...
    
AT 111 AM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO
WAS LOCATED NEAR YANCEY...OR 15 MILES NORTH OF PEARSALL...MOVING EAST
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. 

THIS TORNADIC THUNDERSTORM WILL REMAIN OVER MAINLY RURAL AREAS OF
SOUTH CENTRAL MEDINA AND NORTH CENTRAL FRIO COUNTIES.

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 2904 9925 2918 9924 2928 9904 2896 9915
TIME...MOT...LOC 0611Z 290DEG 29KT 2910 9916 

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

$$

CP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:27 PM CDT	Special Weather Statement	EWX	Val Verde	63 min
Apr 26, 9:39 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Val Verde	66 min
Apr 26, 10:21 PM CDT	Special Weather Statement	EWX	Kinney	39 min
Apr 26, 10:40 PM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kerr, Real, Val Verde	65 min
Apr 26, 10:51 PM CDT	Special Weather Statement	EWX	Kinney	54 min
Apr 26, 11:04 PM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Kerr, Llano	56 min
Apr 26, 11:14 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Uvalde, Val Verde	31 min
Apr 26, 11:21 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Gillespie, Kerr, Real	39 min
Apr 26, 11:40 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Edwards, Kinney, Maverick, Medina, Real and 2 more	35 min
Apr 26, 11:49 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Blanco, Burnet, Gillespie, Kendall, Kerr and 1 more	71 min
Apr 27, 12:14 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Real, Uvalde	46 min
Apr 27, 12:44 AM CDT	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Blanco, Burnet, Caldwell, Comal and 9 more	61 min
Apr 27, 12:47 AM CDT	Special Weather Statement	EWX	Dimmit, Frio, Maverick, Zavala	58 min
Apr 27, 1:24 AM CDT	Tornado Warning	EWX	Atascosa, Frio, Medina	66 min
Apr 27, 1:38 AM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bastrop, Bexar, Caldwell, Comal, Dimmit and 13 more	52 min
Apr 27, 1:54 AM CDT	Tornado Warning	EWX	Atascosa, Frio	38 min
Apr 27, 2:24 AM CDT	Tornado Warning	EWX	Atascosa, Wilson	36 min
Apr 27, 2:30 AM CDT	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Fayette, Gonzales, Lavaca, Lee and 2 more	45 min
Apr 27, 3:00 AM CDT	Severe Thunderstorm Warning	EWX	DeWitt, Gonzales, Karnes, Wilson	60 min
Apr 27, 3:55 AM CDT	Special Weather Statement	EWX	DeWitt	35 min

Nearby

Tornado Warnings in Texas, 2015 Every tornado warning in 2015 Tornadoes in 2015

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.