Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 69, NWS San Angelo, TX

April 28, 2021Haskell County, Texas

NWS San Angelo, TX issued this severe thunderstorm warning at Apr 28, 2021, 7:35 PM CDT for Haskell County, Texas. It was in force for 55 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 28, 2021, 7:35 PM CDT (00:35 UTC)
Expired: Apr 28, 2021, 8:30 PM CDT
In force: 55 min
Issued by: NWS San Angelo, TX
Area: Storm-based polygon
Tornado: Possible
Hail: 1.75 in
Wind: 60.0 mph

County Haskell County, TX

The radar

The Dyess AFB radar (KDYX), 86 km from the middle of the area, began a volume at 00:38 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.

What was reported inside it

Time	Report	Where	Remark
Apr 28, 7:55 PM CDT	TSTM WND GST 58	Rule, TX	PUBLIC ESTIMATED WINDS OF AT LEAST 50 KNOTS. SUSTAINED WIND SQUALL FOR ABOUT 5 MINUTES.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.6 hours before the alert went out and 227 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: 1526 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1058 m above ground
0-6 km bulk shear: 73 kt
0-1 km storm-relative helicity: 191 m²/s²
0-3 km storm-relative helicity: 154 m²/s²
Significant tornado parameter: 2.2
Supercell composite: 9.4

Open this sounding in Storm Lab

The text

As transmitted.

155 
WUUS54 KSJT 290035
SVRSJT
TXC207-290130-
/O.NEW.KSJT.SV.W.0069.210429T0035Z-210429T0130Z/

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

The National Weather Service in San Angelo has issued a

* Severe Thunderstorm Warning for...
  Haskell County in west central Texas...

* Until 830 PM CDT.

* At 733 PM CDT, a severe thunderstorm was located 9 miles north of 
  Old Glory, or 12 miles northeast of Aspermont, moving east at 40 
  mph.

  HAZARD...Golf ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* This severe thunderstorm will be near...
  Rule around 745 PM CDT.
  Rochester and O'brien around 750 PM CDT.
  Weinert around 805 PM CDT.

Other locations impacted by this severe thunderstorm include Jud, Us-
277 Near The Haskell-Knox County Line and Us-380 Near The Haskell-
Stonewall County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3309 9947 3314 9999 3340 9999 3340 9947
TIME...MOT...LOC 0033Z 255DEG 42KT 3327 10007 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...60MPH
 
$$

KB

2 follow-up statements

671 
WWUS54 KSJT 290052
SVSSJT

Severe Weather Statement
National Weather Service San Angelo TX
752 PM CDT Wed Apr 28 2021

TXC207-290130-
/O.CON.KSJT.SV.W.0069.000000T0000Z-210429T0130Z/
Haskell TX-
752 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR HASKELL COUNTY...

At 751 PM CDT, a severe thunderstorm was located over Rule, or 9
miles northwest of Haskell, moving east at 40 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

This severe storm will be near...
  Haskell around 805 PM CDT.
  Irby around 825 PM CDT.

Other locations impacted by this severe thunderstorm include Jud, Us-
277 Near The Haskell-Knox County Line and Us-380 Near The Haskell-
Stonewall County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3309 9947 3314 9999 3340 9999 3340 9947
TIME...MOT...LOC 0051Z 278DEG 34KT 3323 9989 

TORNADO...POSSIBLE
HAIL...1.25IN
WIND...60MPH
 
$$

KB

554 
WWUS54 KSJT 290109
SVSSJT

Severe Weather Statement
National Weather Service San Angelo TX
809 PM CDT Wed Apr 28 2021

TXC207-290130-
/O.CON.KSJT.SV.W.0069.000000T0000Z-210429T0130Z/
Haskell TX-
809 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 PM CDT
FOR NORTHERN HASKELL COUNTY...

At 808 PM CDT, a severe thunderstorm was located near Haskell, 
moving east at 40 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

This severe storm will be near...
  Irby around 820 PM CDT.

Other locations impacted by this severe thunderstorm include Us-
277 Near The Haskell-Knox County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3309 9947 3314 9999 3340 9985 3340 9947
TIME...MOT...LOC 0108Z 262DEG 44KT 3324 9967 

TORNADO...POSSIBLE
HAIL...1.75IN
WIND...60MPH
 
$$

KB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:34 PM CDT	Special Weather Statement	SJT	Schleicher	41 min
Apr 28, 8:22 PM CDT	Severe Thunderstorm Warning	SJT	Haskell, Throckmorton	53 min
Apr 28, 9:03 PM CDT	Special Weather Statement	SJT	Concho	42 min
Apr 28, 9:12 PM CDT	Severe Thunderstorm Warning	SJT	Coleman, Concho, McCulloch	48 min
Apr 28, 9:17 PM CDT	Special Weather Statement	SJT	Coleman	43 min
Apr 28, 9:34 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman	56 min
Apr 28, 9:43 PM CDT	Severe Thunderstorm Warning	SJT	Brown, Coleman, McCulloch, San Saba	45 min
Apr 29, 12:03 AM CDT	Special Weather Statement	SJT	McCulloch	42 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.