Alert archive / Texas / Severe Thunderstorm Warnings in 2018

Severe Thunderstorm Warning 166, NWS San Angelo, TX

October 13, 2018Crockett County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Oct 13, 2018, 2:36 AM CDT for Crockett County, Texas. It was in force for 39 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: Oct 13, 2018, 2:36 AM CDT (07:36 UTC)
Expired: Oct 13, 2018, 3:15 AM CDT
In force: 39 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

County Crockett County, TX

The radar

The San Angelo radar (KSJT), 113 km from the middle of the area, began a volume at 07:37 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, 7.6 hours before the alert went out and 156 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

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.

NWS San Angelo, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Oct 13, 12:07 AM CDT, 2 hours 29 minutes earlier.

Area forecast discussion, Oct 13, 12:07 AM CDT, 2 hours 29 minutes before

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Hazardous weather outlook, Oct 12, 3:13 PM CDT, 11 hours 23 minutes before

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In the hours before

Special weather statement, Oct 13, 12:15 AM CDT, 2 hours 21 minutes before

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Special weather statement, Oct 13, 1:15 AM CDT, 1 hour 21 minutes before

Special Weather Statement
National Weather Service San Angelo TX
115 AM CDT SAT OCT 13 2018

TXZ076-130700-
Crockett TX-
115 AM CDT SAT OCT 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTH CENTRAL CROCKETT COUNTY
UNTIL 200 AM CDT...

At 115 AM CDT, Doppler radar was tracking a strong thunderstorm 7
miles east of Terrell County Gas Plant, or 21 miles south of
Sheffield, moving east at 25 mph.

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

This storm will remain over mainly rural areas of south central
Crockett County, including the following locations... The
Intersection Of Ranch Road 2083 And Highway 405.

LAT...LON 3035 10170 3034 10166 3038 10170 3039 10169
      3042 10174 3044 10172 3047 10173 3047 10169
      3049 10169 3050 10167 3052 10168 3057 10165
      3066 10140 3032 10127 3031 10174
TIME...MOT...LOC 0615Z 258DEG 21KT 3040 10173

Daniels

Special weather statement, Oct 13, 1:17 AM CDT, 1 hour 19 minutes before

Special Weather Statement
National Weather Service San Angelo TX
117 AM CDT SAT OCT 13 2018

TXZ076-130700-
Crockett TX-
117 AM CDT SAT OCT 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR NORTHWESTERN CROCKETT COUNTY
UNTIL 200 AM CDT...

At 117 AM CDT, Doppler radar was tracking a strong thunderstorm near
Bakersfield, moving northeast at 25 mph.

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

This storm will remain over mainly rural areas of northwestern
Crockett County.

LAT...LON 3109 10231 3108 10180 3098 10201 3100 10204
      3099 10209 3099 10214 3102 10218 3100 10219
      3103 10220 3104 10226 3103 10228 3107 10233
TIME...MOT...LOC 0617Z 231DEG 22KT 3097 10227

Daniels

Special weather statement, Oct 13, 2:14 AM CDT, 22 minutes before

Special Weather Statement
National Weather Service San Angelo TX
214 AM CDT SAT OCT 13 2018

TXZ076-130800-
Crockett TX-
214 AM CDT SAT OCT 13 2018

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN CROCKETT COUNTY
UNTIL 300 AM CDT...

At 213 AM CDT, Doppler radar was tracking a strong thunderstorm 21
miles southeast of Sheffield, moving northeast at 20 mph.

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

This storm will remain over mainly rural areas of southeastern
Crockett County, including the following locations... The
Intersection Of Ranch Road 2083 And Highway 405 and The Intersection
Of I-10 And Highway 405.

This includes Interstate 10 between Mile Markers 347 and 366.

A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
west central Texas.

LAT...LON 3039 10155 3059 10166 3084 10132 3056 10101
TIME...MOT...LOC 0713Z 236DEG 17KT 3053 10151

Daniels

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, 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, 6:02 AM CDT	Tornado Warning	SJT	Irion, Tom Green	28 min
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

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.