Alert archive / Texas / Tornado Warnings in 2018

Tornado Warning 13, NWS San Angelo, TX

October 13, 2018Irion County, Tom Green County, Texas

NWS San Angelo, TX issued this tornado warning at Oct 13, 2018, 6:02 AM CDT for Irion County, Tom Green County, Texas. It was in force for 28 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: Oct 13, 2018, 6:02 AM CDT (11:02 UTC)
Expired: Oct 13, 2018, 6:30 AM CDT
In force: 28 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Irion County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 38 km from the middle of the area, began a volume at 11:05 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
Oct 13, 1:59 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 11.0 hours before the alert went out and 152 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: 481 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1136 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -36 m²/s²
0-3 km storm-relative helicity: 65 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -1.1

Open this sounding in Storm Lab

The text

As transmitted.

893 
WFUS54 KSJT 131102
TORSJT
TXC235-451-131130-
/O.NEW.KSJT.TO.W.0013.181013T1102Z-181013T1130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service San Angelo TX
602 AM CDT SAT OCT 13 2018

The National Weather Service in San Angelo has issued a

* Tornado Warning for...
  South central Tom Green County in west central Texas...
  Southeastern Irion County in west central Texas...

* Until 630 AM CDT.
    
* At 601 AM CDT, a severe thunderstorm capable of producing a tornado
  was located 10 miles west of Mertzon, moving east at 40 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...
  Mertzon around 615 AM CDT.
  Sherwood around 620 AM CDT.
  Tankersley and Knickerbocker around 630 AM CDT.

Other locations impacted by this tornadic thunderstorm include Us-
67 Near The Irion-Tom Green County Line.

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 3109 10101 3128 10112 3144 10061 3118 10048
TIME...MOT...LOC 1101Z 251DEG 35KT 3122 10100 

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
Oct 12, 8:19 PM CDT	Areal Flood Advisory	SJT	Coke, Runnels	116 min
Oct 12, 9:32 PM CDT	Areal Flood Advisory	SJT	Coleman, Runnels, Taylor	118 min
Oct 13, 12:15 AM CDT	Special Weather Statement	SJT	Upton	30 min
Oct 13, 1:15 AM CDT	Special Weather Statement	SJT	Crockett	45 min
Oct 13, 1:17 AM CDT	Special Weather Statement	SJT	Upton	43 min
Oct 13, 1:27 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	48 min
Oct 13, 2:14 AM CDT	Special Weather Statement	SJT	Crockett	46 min
Oct 13, 2:36 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	39 min
Oct 13, 3:15 AM CDT	Severe Thunderstorm Warning	SJT	Crockett, Sterling	48 min
Oct 13, 4:31 AM CDT	Special Weather Statement	SJT	Upton	44 min
Oct 13, 4:40 AM CDT	Severe Thunderstorm Warning	SJT	Sterling	50 min
Oct 13, 4:53 AM CDT	Severe Thunderstorm Warning	SJT	Crockett	52 min
Oct 13, 5:24 AM CDT	Special Weather Statement	SJT	Coke, Irion, Sterling	51 min
Oct 13, 5:42 AM CDT	Areal Flood Advisory	SJT	Haskell, Throckmorton	3 hr
Oct 13, 6:10 AM CDT	Special Weather Statement	SJT	Runnels, Tom Green	50 min
Oct 13, 6:27 AM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	48 min
Oct 13, 6:33 AM CDT	Areal Flood Advisory	SJT	Fisher, Jones, Nolan, Taylor	3 hr
Oct 13, 6:45 AM CDT	Areal Flood Advisory	SJT	Coke, Concho, Irion, Nolan, Runnels, Taylor and 1 more	3 hr
Oct 13, 6:56 AM CDT	Tornado Warning	SJT	Tom Green	34 min
Oct 13, 7:17 AM CDT	Special Weather Statement	SJT	Concho, Runnels	58 min
Oct 13, 7:31 AM CDT	Tornado Warning	SJT	Tom Green	14 min
Oct 13, 7:43 AM CDT	Severe Thunderstorm Warning	SJT	Irion, Tom Green	47 min
Oct 13, 7:54 AM CDT	Tornado Warning	SJT	Concho, Tom Green	36 min
Oct 13, 8:20 AM CDT	Areal Flood Advisory	SJT	Concho	3 hr
Oct 13, 8:24 AM CDT	Tornado Warning	SJT	Concho	36 min
Oct 13, 8:27 AM CDT	Tornado Warning	SJT	Menard, Schleicher	33 min
Oct 13, 8:53 AM CDT	Tornado Warning	SJT	Concho, McCulloch	37 min
Oct 13, 8:55 AM CDT	Special Weather Statement	SJT	Tom Green	35 min
Oct 13, 9:00 AM CDT	Flash Flood Warning	SJT	Tom Green	60 min
Oct 13, 9:01 AM CDT	Severe Thunderstorm Warning	SJT	Concho, McCulloch, Menard	44 min
Oct 13, 9:09 AM CDT	Areal Flood Advisory	SJT	Haskell, Throckmorton	3 hr
Oct 13, 9:16 AM CDT	Special Weather Statement	SJT	Coleman	44 min
Oct 13, 9:39 AM CDT	Severe Thunderstorm Warning	SJT	McCulloch, San Saba	51 min
Oct 13, 9:47 AM CDT	Severe Thunderstorm Warning	SJT	Brown	28 min
Oct 13, 9:52 AM CDT	Areal Flood Advisory	SJT	McCulloch	113 min
Oct 13, 10:06 AM CDT	Areal Flood Advisory	SJT	Tom Green	114 min
Oct 13, 10:17 AM CDT	Tornado Warning	SJT	McCulloch, San Saba	43 min
Oct 13, 10:40 AM CDT	Tornado Warning	SJT	Concho	35 min
Oct 13, 10:43 AM CDT	Tornado Warning	SJT	McCulloch, San Saba	32 min
Oct 13, 11:24 AM CDT	Areal Flood Advisory	SJT	Concho, Menard	2 hr
Oct 13, 12:06 PM CDT	Areal Flood Advisory	SJT	McCulloch, San Saba	3 hr
Oct 13, 12:20 PM CDT	Flash Flood Warning	SJT	McCulloch	115 min
Oct 13, 12:36 PM CDT	Special Weather Statement	SJT	San Saba	39 min
Oct 13, 1:42 PM CDT	Areal Flood Advisory	SJT	Mason, San Saba	108 min

Nearby

Tornado Warnings in Texas, 2018 Every tornado warning in 2018 Tornadoes in 2018

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.