Alert archive / Texas / Tornado Warnings in 2017

Tornado Warning 9, NWS San Angelo, TX

March 28, 2017Sterling County, Texas

NWS San Angelo, TX issued this tornado warning at Mar 28, 2017, 8:14 PM CDT for Sterling County, Texas. It was in force for 31 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: Mar 28, 2017, 8:14 PM CDT (01:14 UTC)
Expired: Mar 28, 2017, 8:45 PM CDT
In force: 31 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Sterling County, TX

The radar

The San Angelo radar (KSJT), 90 km from the middle of the area, began a volume at 01:18 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
Mar 28, 1:51 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.2 hours before the alert went out and 99 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: 1002 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 2452 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: -52 m²/s²
0-3 km storm-relative helicity: -16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

Open this sounding in Storm Lab

The text

As transmitted.

931 
WFUS54 KSJT 290114
TORSJT
TXC431-290145-
/O.NEW.KSJT.TO.W.0009.170329T0114Z-170329T0145Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service San Angelo TX
814 PM CDT TUE MAR 28 2017

The National Weather Service in San Angelo has issued a

* Tornado Warning for...
  Northern Sterling County in west central Texas...

* Until 845 PM CDT
    
* At 814 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 11 miles east of Garden City, moving northeast at 45
  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 tornadic thunderstorm will remain over mainly rural areas of
  northern Sterling County.

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 3200 10126 3209 10107 3189 10090 3178 10126
TIME...MOT...LOC 0114Z 241DEG 40KT 3188 10129 

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

$$

Woodward

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 28, 7:36 PM CDT	Special Weather Statement	SJT	Menard	39 min
Mar 28, 7:40 PM CDT	Special Weather Statement	SJT	Haskell	50 min
Mar 28, 7:46 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	44 min
Mar 28, 7:52 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard, Sutton	23 min
Mar 28, 8:01 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Irion, Sterling, Tom Green	44 min
Mar 28, 8:08 PM CDT	Tornado Warning	SJT	Irion	22 min
Mar 28, 8:22 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion	23 min
Mar 28, 8:24 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	21 min
Mar 28, 8:34 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Irion, Sterling, Tom Green	41 min
Mar 28, 8:42 PM CDT	Severe Thunderstorm Warning	SJT	Crockett, Irion, Schleicher, Sutton, Tom Green	48 min
Mar 28, 8:54 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	51 min
Mar 28, 9:06 PM CDT	Tornado Warning	SJT	Nolan	24 min
Mar 28, 9:07 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Concho, Runnels, Tom Green	38 min
Mar 28, 9:16 PM CDT	Tornado Warning	SJT	Nolan	29 min
Mar 28, 9:30 PM CDT	Tornado Warning	SJT	Fisher, Jones, Nolan, Taylor	30 min
Mar 28, 9:32 PM CDT	Special Weather Statement	SJT	Schleicher, Sutton	43 min
Mar 28, 9:41 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Runnels	49 min
Mar 28, 9:41 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	64 min
Mar 28, 10:04 PM CDT	Special Weather Statement	SJT	Schleicher	41 min
Mar 28, 10:14 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Haskell, Jones, Shackelford, Taylor, Throckmorton	61 min
Mar 28, 10:20 PM CDT	Special Weather Statement	SJT	Sutton	40 min
Mar 28, 10:26 PM CDT	Special Weather Statement	SJT	Tom Green	49 min
Mar 28, 10:31 PM CDT	Special Weather Statement	SJT	Runnels	14 min
Mar 28, 10:42 PM CDT	Areal Flood Advisory	SJT	Sutton	3 hr
Mar 28, 11:09 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, Menard	51 min
Mar 28, 11:24 PM CDT	Special Weather Statement	SJT	Kimble	51 min
Mar 28, 11:33 PM CDT	Severe Thunderstorm Warning	SJT	Kimble, McCulloch, Mason, Menard, San Saba	57 min
Mar 29, 12:04 AM CDT	Special Weather Statement	SJT	Brown, McCulloch, San Saba	41 min

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.