Alert archive / Texas / Tornado Warnings in 2012

Tornado Warning 15, NWS San Angelo, TX

May 28, 2012Coke County, Nolan County, Texas

NWS San Angelo, TX issued this tornado warning at May 28, 2012, 8:06 PM CDT for Coke County, Nolan County, Texas. It was in force for 24 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 28, 2012, 8:06 PM CDT (01:06 UTC)
Expired: May 28, 2012, 8:30 PM CDT
In force: 24 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon

Counties Coke County, TX, Nolan County, TX

The radar

The San Angelo radar (KSJT), 81 km from the middle of the area, began a volume at 01:07 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 28, 3:48 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.1 hours before the alert went out and 150 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: 602 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 2981 m above ground
0-6 km bulk shear: 54 kt
0-1 km storm-relative helicity: 32 m²/s²
0-3 km storm-relative helicity: 84 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

The text

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

112 
WFUS54 KSJT 290106
TORSJT
TXC081-353-290130-
/O.NEW.KSJT.TO.W.0015.120529T0106Z-120529T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
806 PM CDT MON MAY 28 2012

THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHWESTERN NOLAN COUNTY IN WEST CENTRAL TEXAS...
  NORTHWESTERN COKE COUNTY IN WEST CENTRAL TEXAS...

* UNTIL 830 PM CDT

* AT 802 PM CDT...A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A
  TORNADO WAS 5 MILES NORTH OF SILVER...OR 21 MILES SOUTHEAST OF
  COLORADO CITY...MOVING SOUTHEAST AT 30 MPH.

  IN ADDITION TO DANGEROUS TORNADIC WINDS...OTHER HAZARDS INCLUDE...
  POTENTIALLY DEADLY LIGHTNING.

* THE TORNADO IS EXPECTED TO BE NEAR...
  SANCO BY 825 PM CDT...
  SPENCE RESERVOIR NEAR PAINT CREEK RECREATION AREA BY 830 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TUESDAY MORNING FOR WEST CENTRAL TEXAS.

&&

LAT...LON 3205 10036 3187 10064 3209 10081 3210 10080
      3209 10067 3223 10067 3224 10066
TIME...MOT...LOC 0105Z 316DEG 28KT 3212 10068

$$

1 follow-up statement

520 
WWUS54 KSJT 290119
SVSSJT

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
819 PM CDT MON MAY 28 2012

TXC081-353-290130-
/O.CON.KSJT.TO.W.0015.000000T0000Z-120529T0130Z/
NOLAN TX-COKE TX-
819 PM CDT MON MAY 28 2012

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 830 PM CDT FOR
NORTHWESTERN COKE AND SOUTHWESTERN NOLAN COUNTIES...

AT 816 PM CDT... A TORNADO WAS CONFIRMED! THIS TORNADO WAS LOCATED 6
MILES EAST OF SILVER...OR 15 MILES NORTH OF ROBERT LEE...MOVING
SOUTHEAST AT 30 MPH.

  STORM HAZARDS INCLUDE...
  DANGEROUS TORNADIC WINDS.
  LARGE DAMAGING HAIL UP TO GOLF BALL SIZE. 
  DESTRUCTIVE WINDS IN EXCESS OF 70 MPH.

  WITH POSSIBLE STORM IMPACTS...
  DOWNED TREES AND TOPPLED SIGNS...
  BROKEN WINDOWS AND ROOF DAMAGE...
  VEHICLES...SHEDS...AND POORLY SECURED MOBILE HOMES TOPPLED
  DENTED VEHICLES...
  MODERATE ROOF DAMAGE...
  MAY BREAK WINDOWS ON VEHICLES AND HOMES...
  MAY INJURE PEOPLE...PETS...AND LIVESTOCK LEFT UNPROTECTED...
  SIGNIFICANT DAMAGE TO TREE LIMBS...
  SOME TREES MAY BE BLOWN DOWN...
  SHEDS TOPPLED...
  ROOF DAMAGE TO MANUFACTURED HOMES...
  EXTENSIVE POWER OUTAGES...
  AND DANGEROUS LIGHTNING.

THE TORNADO WILL BE NEAR...
  SANCO BY 825 PM CDT...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL MIDNIGHT CDT
TUESDAY MORNING FOR WEST CENTRAL TEXAS.

&&

LAT...LON 3205 10036 3187 10064 3209 10081 3210 10080
      3209 10067 3223 10067 3224 10066
TIME...MOT...LOC 0119Z 301DEG 28KT 3208 10056

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
May 28, 7:12 PM CDT	Special Weather Statement	SJT	Jones	63 min
May 28, 7:19 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Jones, Shackelford, Taylor	41 min
May 28, 7:29 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	46 min
May 28, 7:51 PM CDT	Severe Thunderstorm Warning	SJT	Throckmorton	39 min
May 28, 7:53 PM CDT	Severe Thunderstorm Warning	SJT	Runnels, Taylor	52 min
May 28, 8:23 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels, Taylor	52 min
May 28, 8:29 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Nolan, Runnels, Taylor	46 min
May 28, 9:04 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Nolan	41 min
May 28, 9:23 PM CDT	Severe Thunderstorm Warning	SJT	Runnels, Taylor	52 min
May 28, 9:36 PM CDT	Special Weather Statement	SJT	Fisher	54 min
May 28, 9:49 PM CDT	Special Weather Statement	SJT	Nolan	56 min
May 28, 10:20 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	40 min
May 28, 10:26 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	49 min
May 28, 10:38 PM CDT	Special Weather Statement	SJT	Coleman	52 min
May 28, 11:12 PM CDT	Severe Thunderstorm Warning	SJT	Nolan	48 min
May 28, 11:29 PM CDT	Special Weather Statement	SJT	Brown	46 min
May 28, 11:52 PM CDT	Severe Thunderstorm Warning	SJT	Nolan, Taylor	38 min
May 29, 12:25 AM CDT	Severe Thunderstorm Warning	SJT	Nolan, Taylor	65 min
May 29, 12:27 AM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	48 min
May 29, 1:29 AM CDT	Severe Thunderstorm Warning	SJT	Nolan, Runnels, Taylor	61 min
May 29, 2:30 AM CDT	Special Weather Statement	SJT	Taylor	45 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.