Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 64, NWS San Angelo, TX

April 28, 2021Jones County, Shackelford County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 28, 2021, 2:57 AM CDT for Jones County, Shackelford County, Texas. It was in force for 63 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: Apr 28, 2021, 2:57 AM CDT (07:57 UTC)
Expired: Apr 28, 2021, 4:00 AM CDT
In force: 63 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Tornado: Possible
Hail: 0.75 in
Wind: 60.0 mph

Counties Jones County, TX, Shackelford County, TX

The radar

The Dyess AFB radar (KDYX), 28 km from the middle of the area, began a volume at 08:01 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
Apr 27, 8:23 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 8.0 hours before the alert went out and 211 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: 692 J/kg
Mixed-layer CIN: -275 J/kg
Mixed-layer LCL: 967 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 197 m²/s²
0-3 km storm-relative helicity: 388 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

203 
WUUS54 KSJT 280757
SVRSJT
TXC253-417-280900-
/O.NEW.KSJT.SV.W.0064.210428T0757Z-210428T0900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service San Angelo TX
257 AM CDT Wed Apr 28 2021

The National Weather Service in San Angelo has issued a

* Severe Thunderstorm Warning for...
  Southeastern Jones County in west central Texas...
  Southern Shackelford County in west central Texas...

* Until 400 AM CDT.

* At 256 AM CDT, a severe thunderstorm was located near Hawley, or 10
  miles north of Abilene, moving east at 35 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Nugent around 305 AM CDT.
  Albany around 345 AM CDT.

Other locations impacted by this severe thunderstorm include Lake
Fort Phantom Hill and Mccarty Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3252 9978 3267 9980 3281 9916 3256 9916
TIME...MOT...LOC 0756Z 257DEG 29KT 3261 9972 

TORNADO...POSSIBLE
HAIL...<.75IN
WIND...60MPH
 
$$

1 follow-up statement

666 
WWUS54 KSJT 280817
SVSSJT

Severe Weather Statement
National Weather Service San Angelo TX
317 AM CDT Wed Apr 28 2021

TXC253-280826-
/O.CAN.KSJT.SV.W.0064.000000T0000Z-210428T0900Z/
Jones TX-
317 AM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN JONES COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 1000 AM CDT for west central
Texas.

LAT...LON 3255 9956 3272 9956 3281 9916 3256 9916
TIME...MOT...LOC 0816Z 257DEG 45KT 3267 9942 

$$

TXC417-280900-
/O.CON.KSJT.SV.W.0064.000000T0000Z-210428T0900Z/
Shackelford TX-
317 AM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 400 AM CDT
FOR SOUTHERN SHACKELFORD COUNTY...

At 316 AM CDT, a severe thunderstorm was located 8 miles southwest of
Albany, moving east at 50 mph.

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

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

This severe storm will be near...
  Albany around 325 AM CDT.

Other locations impacted by this severe thunderstorm include Mccarty
Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1000 AM CDT for west central
Texas.

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

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

&&

LAT...LON 3255 9956 3272 9956 3281 9916 3256 9916
TIME...MOT...LOC 0816Z 257DEG 45KT 3267 9942 

TORNADO...POSSIBLE
HAIL...0.75IN
WIND...60MPH
 
$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 7:17 PM CDT	Special Weather Statement	SJT	Fisher	58 min
Apr 27, 7:25 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	65 min
Apr 27, 7:27 PM CDT	Severe Thunderstorm Warning	SJT	Haskell	63 min
Apr 27, 7:33 PM CDT	Areal Flood Advisory	SJT	Fisher	117 min
Apr 27, 8:11 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	64 min
Apr 27, 8:27 PM CDT	Tornado Warning	SJT	Fisher	33 min
Apr 27, 8:29 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones	61 min
Apr 27, 8:34 PM CDT	Special Weather Statement	SJT	Haskell	41 min
Apr 27, 8:46 PM CDT	Tornado Warning	SJT	Nolan	44 min
Apr 27, 8:54 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	66 min
Apr 27, 8:56 PM CDT	Special Weather Statement	SJT	Haskell	64 min
Apr 27, 9:12 PM CDT	Tornado Warning	SJT	Fisher, Jones, Nolan, Taylor	48 min
Apr 27, 9:20 PM CDT	Severe Thunderstorm Warning	SJT	Jones, Shackelford	40 min
Apr 27, 9:33 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Throckmorton	57 min
Apr 27, 9:53 PM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	67 min
Apr 27, 10:01 PM CDT	Special Weather Statement	SJT	Shackelford	44 min
Apr 28, 1:11 AM CDT	Severe Thunderstorm Warning	SJT	Fisher, Nolan	64 min
Apr 28, 1:59 AM CDT	Severe Thunderstorm Warning	SJT	Fisher, Jones, Nolan, Taylor	61 min
Apr 28, 2:32 AM CDT	Tornado Warning	SJT	Jones	28 min
Apr 28, 3:49 AM CDT	Tornado Warning	SJT	Shackelford	26 min
Apr 28, 3:51 AM CDT	Severe Thunderstorm Warning	SJT	Shackelford, Throckmorton	24 min
Apr 28, 4:18 AM CDT	Areal Flood Advisory	SJT	Throckmorton	3 hr
Apr 28, 4:28 AM CDT	Special Weather Statement	SJT	Coke, Sterling	47 min
Apr 28, 4:57 AM CDT	Special Weather Statement	SJT	Sterling	48 min
Apr 28, 5:03 AM CDT	Special Weather Statement	SJT	Nolan	42 min
Apr 28, 5:12 AM CDT	Areal Flood Advisory	SJT	Nolan	107 min
Apr 28, 5:34 AM CDT	Areal Flood Advisory	SJT	Taylor	3 hr
Apr 28, 6:04 AM CDT	Special Weather Statement	SJT	Shackelford	41 min
Apr 28, 6:25 AM CDT	Flash Flood Warning	SJT	Callahan, Jones, Shackelford, Taylor	3 hr
Apr 28, 6:39 AM CDT	Areal Flood Advisory	SJT	Callahan, Shackelford	3 hr
Apr 28, 6:47 AM CDT	Special Weather Statement	SJT	Shackelford	28 min
Apr 28, 9:27 AM CDT	Areal Flood Advisory	SJT	Callahan, Shackelford, Taylor	3 hr
Apr 28, 2:07 PM CDT	Severe Thunderstorm Warning	SJT	Coke, Runnels	53 min
Apr 28, 2:52 PM CDT	Special Weather Statement	SJT	Runnels	38 min
Apr 28, 3:16 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman, Runnels, Taylor	44 min
Apr 28, 3:52 PM CDT	Severe Thunderstorm Warning	SJT	Callahan, Coleman	38 min
Apr 28, 4:24 PM CDT	Special Weather Statement	SJT	Brown	36 min
Apr 28, 6:10 PM CDT	Special Weather Statement	SJT	Brown	50 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.