Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 4, NWS San Angelo, TX

March 13, 2021Crockett County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Mar 13, 2021, 7:16 PM CST for Crockett County, Texas. It was in force for 19 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 13, 2021, 7:16 PM CST (01:16 UTC)
Expired: Mar 13, 2021, 7:35 PM CST
In force: 19 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Crockett County, TX

The radar

The Midland/Odessa radar (KMAF), 112 km from the middle of the area, began a volume at 01:17 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 13, 3:23 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Midland Regional, TX (KMAF), launched 00:00Z, 1.3 hours before the alert went out and 113 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3140 m above ground
0-6 km bulk shear: 93 kt
0-1 km storm-relative helicity: -33 m²/s²
0-3 km storm-relative helicity: 380 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

292 
WUUS54 KSJT 140116
SVRSJT
TXC105-140200-
/O.NEW.KSJT.SV.W.0004.210314T0116Z-210314T0200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service San Angelo TX
716 PM CST Sat Mar 13 2021

The National Weather Service in San Angelo has issued a

* Severe Thunderstorm Warning for...
  Northwest Crockett County in west central Texas...

* Until 800 PM CST.

* At 715 PM CST, a severe thunderstorm was located 11 miles northwest
  of Iraan, or 13 miles southeast of McCamey, moving northeast at 45
  mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* This severe thunderstorm will remain over mainly rural areas of
  northwest Crockett County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 PM CST for west central
Texas.

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3107 10144 3084 10184 3086 10185 3089 10189
      3092 10187 3093 10191 3098 10198 3098 10201
      3100 10204 3099 10209 3100 10217 3108 10222
TIME...MOT...LOC 0115Z 223DEG 37KT 3098 10208 

HAIL...1.00IN
WIND...60MPH
 
$$

08

1 follow-up statement

533 
WWUS54 KSJT 140135
SVSSJT

Severe Weather Statement
National Weather Service San Angelo TX
735 PM CST Sat Mar 13 2021

TXC105-140145-
/O.CAN.KSJT.SV.W.0004.000000T0000Z-210314T0200Z/
Crockett TX-
735 PM CST Sat Mar 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL CROCKETT COUNTY
IS CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been cancelled.  However heavy rain is
still possible with this thunderstorm.

A Tornado Watch remains in effect until 1000 PM CST for west central
Texas.

LAT...LON 3107 10144 3084 10184 3086 10185 3089 10189
      3092 10187 3093 10191 3098 10198 3098 10201
      3100 10204 3099 10209 3100 10217 3108 10222
TIME...MOT...LOC 0134Z 223DEG 37KT 3113 10191 

$$

08

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 13, 6:17 PM CST	Severe Thunderstorm Warning	SJT	Sterling	58 min
Mar 13, 6:28 PM CST	Special Weather Statement	SJT	Upton	62 min
Mar 13, 6:53 PM CST	Special Weather Statement	SJT	Fisher	37 min
Mar 13, 7:02 PM CST	Severe Thunderstorm Warning	SJT	Sterling	36 min
Mar 13, 7:12 PM CST	Severe Thunderstorm Warning	SJT	Fisher, Nolan	63 min
Mar 13, 7:21 PM CST	Special Weather Statement	SJT	Irion	54 min
Mar 13, 7:24 PM CST	Severe Thunderstorm Warning	SJT	Coke	51 min
Mar 13, 7:44 PM CST	Severe Thunderstorm Warning	SJT	Irion, Sterling, Tom Green	46 min
Mar 13, 7:46 PM CST	Special Weather Statement	SJT	Nolan	29 min
Mar 13, 8:08 PM CST	Special Weather Statement	SJT	Tom Green	37 min
Mar 13, 8:11 PM CST	Special Weather Statement	SJT	Jones, Nolan	49 min
Mar 13, 8:13 PM CST	Severe Thunderstorm Warning	SJT	Tom Green	47 min
Mar 13, 8:19 PM CST	Severe Thunderstorm Warning	SJT	Coke, Runnels	44 min
Mar 13, 8:23 PM CST	Special Weather Statement	SJT	Haskell	37 min
Mar 13, 8:32 PM CST	Special Weather Statement	SJT	Irion	43 min
Mar 13, 8:38 PM CST	Special Weather Statement	SJT	Callahan, Shackelford, Taylor	52 min
Mar 13, 8:44 PM CST	Special Weather Statement	SJT	Runnels	46 min
Mar 13, 9:01 PM CST	Special Weather Statement	SJT	Schleicher, Tom Green	44 min
Mar 13, 9:12 PM CST	Special Weather Statement	SJT	Coleman	63 min
Mar 13, 9:27 PM CST	Special Weather Statement	SJT	Sutton	63 min
Mar 13, 9:29 PM CST	Special Weather Statement	SJT	Throckmorton	61 min
Mar 13, 10:01 PM CST	Special Weather Statement	SJT	Menard, Schleicher	59 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Every severe thunderstorm warning in 2021

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.