Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 142, NWS San Angelo, TX

June 23, 20184 counties in Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Jun 23, 2018, 8:25 PM CDT for 4 counties in Texas. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 23, 2018, 8:25 PM CDT (01:25 UTC)
Expired: Jun 23, 2018, 9:15 PM CDT
In force: 50 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Coke County, TX, Runnels County, TX, Sterling County, TX, Tom Green County, TX

The radar

The San Angelo radar (KSJT), 41 km from the middle of the area, began a volume at 01:25 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 nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.4 hours before the alert went out and 162 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: 718 J/kg
Mixed-layer CIN: -94 J/kg
Mixed-layer LCL: 3787 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -15 m²/s²
0-3 km storm-relative helicity: 17 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Jun 23, 7:02 PM CDT, 1 hour 23 minutes before

Special Weather Statement
National Weather Service San Angelo TX
702 PM CDT SAT JUN 23 2018

TXZ064-240045-
Sterling TX-
702 PM CDT SAT JUN 23 2018

...SIGNIFICANT WEATHER ADVISORY FOR STERLING COUNTY UNTIL 745 PM
CDT...

At 701 PM CDT, Doppler radar was tracking a strong thunderstorm 13
miles west of Sterling City, moving northeast at 15 mph.

Nickel size hail and wind gusts of 50 to 55 mph will be possible with
this storm.

This storm will remain over mainly rural areas of Sterling County.

LAT...LON 3209 10109 3209 10083 3175 10082 3169 10126
      3197 10127
TIME...MOT...LOC 0001Z 239DEG 43KT 3189 10121

Special weather statement, Jun 23, 7:14 PM CDT, 1 hour 11 minutes before

Special Weather Statement
National Weather Service San Angelo TX
714 PM CDT SAT JUN 23 2018

TXZ098-113-114-240100-
Haskell TX-Shackelford TX-Jones TX-
714 PM CDT SAT JUN 23 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN HASKELL...
NORTHEASTERN JONES AND NORTHWESTERN SHACKELFORD COUNTIES UNTIL 800 PM
CDT...

At 713 PM CDT, Doppler radar was tracking a strong thunderstorm over
Stamford, moving southeast at 20 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Avoca around 740 PM CDT.
  Lueders around 800 PM CDT.

Other locations impacted by this storm include Big Country Baptist
Assembly and The Intersection Of Us-180 And Farm Road 600.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3301 9947 3296 9947 3296 9945 3268 9961
      3290 9996 3307 9985
TIME...MOT...LOC 0013Z 299DEG 16KT 3295 9983

Special weather statement, Jun 23, 7:42 PM CDT, 43 minutes before

Special Weather Statement
National Weather Service San Angelo TX
742 PM CDT SAT JUN 23 2018

TXZ064-240130-
Sterling TX-
742 PM CDT SAT JUN 23 2018

...SIGNIFICANT WEATHER ADVISORY FOR CENTRAL STERLING COUNTY UNTIL 830
PM CDT...

At 741 PM CDT, Doppler radar was tracking a strong thunderstorm 10
miles west of Sterling City, moving southeast at 25 mph.

Dime size hail and wind gusts up to 50 mph will be possible with this
storm.

This strong thunderstorm will be near...
  Sterling City around 800 PM CDT.
  Broome around 825 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with this storm, and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 3200 10126 3183 10082 3178 10082 3156 10096
      3156 10104 3166 10127
TIME...MOT...LOC 0041Z 302DEG 22KT 3183 10117

Special weather statement, Jun 23, 8:16 PM CDT, 9 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 23, 7:02 PM CDT	Special Weather Statement	SJT	Sterling	43 min
Jun 23, 7:14 PM CDT	Special Weather Statement	SJT	Jones	46 min
Jun 23, 7:18 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	42 min
Jun 23, 7:42 PM CDT	Special Weather Statement	SJT	Sterling	48 min
Jun 23, 7:49 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Shackelford	41 min
Jun 23, 7:55 PM CDT	Severe Thunderstorm Warning	SJT	Sterling	26 min
Jun 23, 8:00 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan	45 min
Jun 23, 8:11 PM CDT	Severe Thunderstorm Warning	SJT	Coke	49 min
Jun 23, 8:16 PM CDT	Special Weather Statement	SJT	Nolan	44 min
Jun 23, 8:40 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Haskell, Jones	50 min
Jun 23, 8:41 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Concho, Irion, Runnels, Tom Green	49 min
Jun 23, 8:47 PM CDT	Special Weather Statement	SJT	Fisher	43 min
Jun 23, 9:06 PM CDT	Special Weather Statement	SJT	Runnels	39 min
Jun 23, 9:09 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Shackelford, Throckmorton	16 min
Jun 23, 9:23 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	22 min
Jun 23, 9:24 PM CDT	Special Weather Statement	SJT	Concho, McCulloch, Menard, Tom Green	66 min
Jun 23, 9:38 PM CDT	Special Weather Statement	SJT	Callahan, Coleman, Runnels, Taylor	52 min
Jun 23, 9:43 PM CDT	Areal Flood Advisory	SJT	Tom Green	3 hr
Jun 23, 9:43 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Jones, Shackelford, Throckmorton	47 min
Jun 23, 10:07 PM CDT	Special Weather Statement	SJT	Jones	38 min
Jun 23, 10:15 PM CDT	Areal Flood Advisory	SJT	Jones, Taylor	2 hr
Jun 23, 10:19 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford	41 min
Jun 23, 10:32 PM CDT	Special Weather Statement	SJT	Throckmorton	43 min
Jun 23, 10:35 PM CDT	Special Weather Statement	SJT	Brown, Coleman	40 min
Jun 23, 10:49 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Shackelford, Throckmorton	26 min
Jun 24, 12:18 AM CDT	Special Weather Statement	SJT	San Saba	42 min
Jun 24, 12:23 AM CDT	Severe Thunderstorm Warning	SJT	San Saba	30 min
Jun 24, 3:30 AM CDT	Heat Advisory	SJT	Brown, Callahan, Coke, Coleman, Concho, Crockett and 18 more	17 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2018 Every severe thunderstorm warning 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.