Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 4, NWS San Angelo, TX

March 19, 2012Kimble County, Texas

NWS San Angelo, TX issued this tornado warning at Mar 19, 2012, 4:50 PM CDT for Kimble County, Texas. It was in force for 25 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: Mar 19, 2012, 4:50 PM CDT (21:50 UTC)
Expired: Mar 19, 2012, 5:15 PM CDT
In force: 25 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

County Kimble County, TX

The radar

The San Angelo radar (KSJT), 116 km from the middle of the area, began a volume at 21:53 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
Mar 19, 5:10 PM CDT	TSTM WND DMG	8 Ssw London, TX	POWER POLES SNAPPED OFF AT THE BASE ALONG US 377.
Mar 19, 5:16 PM CDT	HAIL 1	7 Sse London, 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
Mar 19, 2:39 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 9.8 hours before the alert went out and 174 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: 2784 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 528 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 284 m²/s²
0-3 km storm-relative helicity: 337 m²/s²
Significant tornado parameter: 4.3
Supercell composite: 18.4

Open this sounding in Storm Lab

The text

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

381 
WFUS54 KSJT 192150
TORSJT
TXC267-192215-
/O.NEW.KSJT.TO.W.0004.120319T2150Z-120319T2215Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
450 PM CDT MON MAR 19 2012

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  CENTRAL KIMBLE COUNTY IN WEST CENTRAL TEXAS...

* UNTIL 515 PM CDT

* AT 448 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS 4 MILES NORTHWEST OF JUNCTION...OR NEAR JUNCTION...
  MOVING EAST AT 40 MPH.

  IN ADDITION TO DANGEROUS TORNADIC WINDS...OTHER HAZARDS INCLUDE...
  LARGE DAMAGING HAIL UP TO GOLF BALL SIZE.
  POTENTIALLY DEADLY LIGHTNING.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LONDON BY 515 PM CDT...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 443 AND 461.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR WEST CENTRAL TEXAS.

&&

LAT...LON 3059 9993 3072 9950 3071 9949 3045 9948
      3043 9985
TIME...MOT...LOC 2150Z 252DEG 33KT 3053 9979

$$

18

1 follow-up statement

801 
WWUS54 KSJT 192200
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
500 PM CDT MON MAR 19 2012

TXC267-192215-
/O.CON.KSJT.TO.W.0004.000000T0000Z-120319T2215Z/
KIMBLE TX-
500 PM CDT MON MAR 19 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 515 PM CDT FOR CENTRAL
KIMBLE COUNTY...

AT 458 PM CDT... THE MOST DANGEROUS PART OF THE STORM WAS LOCATED 6
MILES NORTHEAST OF JUNCTION...MOVING EAST AT 40 MPH.

  STORM HAZARDS INCLUDE...
  DANGEROUS TORNADIC WINDS.
  LARGE DAMAGING HAIL UP TO LARGE DAMAGING HAIL UP TO GOLF BALL      
  SIZE..

  WITH POSSIBLE STORM IMPACTS...
  OVERTURNED VEHICLES...
  DAMAGE TO TREES...SOME MAY BE UPROOTED...
  DAMAGE TO HOMES...MAY DESTROY MANUFACTURED HOMES...
  DENTED VEHICLES...
  MODERATE ROOF DAMAGE...
  MAY BREAK WINDOWS ON VEHICLES AND HOMES...
  MAY INJURE PEOPLE...PETS...AND LIVESTOCK LEFT UNPROTECTED...

  THE TORNADO WILL BE NEAR...
  THE INTERSECTION OF RANCH ROAD 385 AND RANCH ROAD 1871 AND THE
  INTERSECTION OF US-377 AND RANCH ROAD 385 BY 510 PM CDT...
  LONDON BY 515 PM CDT...

THIS INCLUDES INTERSTATE 10 BETWEEN MILE MARKERS 449 AND 460.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A TORNADO WATCH REMAINS IN EFFECT UNTIL 1000 PM CDT MONDAY EVENING
FOR WEST CENTRAL TEXAS.

&&

LAT...LON 3055 9981 3063 9981 3068 9965 3072 9952
      3071 9949 3045 9948 3045 9976
TIME...MOT...LOC 2200Z 252DEG 33KT 3056 9969

$$

18

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 19, 1:18 AM CDT	Special Weather Statement	SJT	Concho, Menard	42 min
Mar 19, 5:28 AM CDT	Special Weather Statement	SJT	Sterling	47 min
Mar 19, 5:56 AM CDT	Special Weather Statement	SJT	Fisher	64 min
Mar 19, 6:29 AM CDT	Special Weather Statement	SJT	Fisher	46 min
Mar 19, 7:06 AM CDT	Lake Wind Advisory	SJT	Brown, Callahan, Coke, Coleman, Concho, Fisher and 9 more	11 hr
Mar 19, 9:29 AM CDT	Special Weather Statement	SJT	Taylor	61 min
Mar 19, 10:28 AM CDT	Special Weather Statement	SJT	Shackelford, Throckmorton	62 min
Mar 19, 11:14 AM CDT	Special Weather Statement	SJT	Callahan, Shackelford, Throckmorton	61 min
Mar 19, 11:32 AM CDT	Special Weather Statement	SJT	Coleman, Runnels	58 min
Mar 19, 11:35 AM CDT	Special Weather Statement	SJT	Concho	55 min
Mar 19, 12:29 PM CDT	Special Weather Statement	SJT	Coleman, Concho, McCulloch	61 min
Mar 19, 12:31 PM CDT	Special Weather Statement	SJT	Callahan	59 min
Mar 19, 1:21 PM CDT	Special Weather Statement	SJT	Coleman, Concho	24 min
Mar 19, 2:19 PM CDT	Special Weather Statement	SJT	Schleicher	26 min
Mar 19, 2:44 PM CDT	Special Weather Statement	SJT	Runnels	46 min
Mar 19, 3:10 PM CDT	Tornado Warning	SJT	Sutton	35 min
Mar 19, 3:15 PM CDT	Special Weather Statement	SJT	Coleman	30 min
Mar 19, 3:41 PM CDT	Severe Thunderstorm Warning	SJT	Sutton	49 min
Mar 19, 3:55 PM CDT	Tornado Warning	SJT	Kimble, Sutton	35 min
Mar 19, 4:29 PM CDT	Tornado Warning	SJT	Kimble	31 min
Mar 19, 4:37 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, Menard	38 min
Mar 19, 4:59 PM CDT	Special Weather Statement	SJT	Menard	31 min
Mar 19, 5:09 PM CDT	Tornado Warning	SJT	Kimble, Mason	36 min
Mar 19, 5:13 PM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch, Mason, Menard	47 min
Mar 19, 5:17 PM CDT	Special Weather Statement	SJT	Kimble	28 min
Mar 19, 5:32 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard, Sutton	43 min
Mar 19, 5:38 PM CDT	Tornado Warning	SJT	Mason	37 min
Mar 19, 5:51 PM CDT	Severe Thunderstorm Warning	SJT	Kimble	24 min
Mar 19, 5:52 PM CDT	Severe Thunderstorm Warning	SJT	McCulloch, San Saba	38 min
Mar 19, 6:12 PM CDT	Special Weather Statement	SJT	Mason	63 min
Mar 19, 6:33 PM CDT	Severe Thunderstorm Warning	SJT	San Saba	27 min
Mar 19, 6:54 PM CDT	Areal Flood Advisory	SJT	Mason	81 min

Nearby

Tornado Warnings in Texas, 2012 Every tornado warning in 2012 Tornadoes in 2012

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.