Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 83, NWS Fort Worth, TX

April 15, 2021Stephens County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 15, 2021, 1:08 PM CDT for Stephens County, Texas. It was in force for 67 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 15, 2021, 1:08 PM CDT (18:08 UTC)
Expired
Apr 15, 2021, 2:15 PM CDT
In force
67 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.5 in
Wind
50.0 mph

County Stephens County, TX

The radar

The Dyess AFB radar (KDYX), 47 km from the middle of the area, began a volume at 18:09 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

Fort Worth, TX (KFWD), launched 12:00Z, 6.1 hours before the alert went out and 150 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-pSkew-T log-p diagram, Fort Worth, TX at 12:00Z on 2021-04-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 12:00Z on 2021-04-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
629 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
140 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

675 
WUUS54 KFWD 151808
SVRFWD
TXC429-151915-
/O.NEW.KFWD.SV.W.0083.210415T1808Z-210415T1915Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
108 PM CDT Thu Apr 15 2021

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Stephens County in north central Texas...

* Until 215 PM CDT.

* At 108 PM CDT, a severe thunderstorm was located near Fort Griffin,
  or 14 miles northeast of Albany, moving east at 40 mph.

  HAZARD...Ping pong ball size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Breckenridge, Necessity, Crystal Falls and Us-
  180 Near The Shackelford-Stephens County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection get inside a sturdy structure and stay away from
windows.

&&

LAT...LON 3295 9910 3295 9858 3264 9858 3269 9910
TIME...MOT...LOC 1808Z 279DEG 33KT 3288 9914 

HAIL...1.50IN
WIND...<50MPH
$$

Barnes
4 follow-up statements
967 
WWUS54 KFWD 151821
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
121 PM CDT Thu Apr 15 2021

TXC429-151915-
/O.CON.KFWD.SV.W.0083.000000T0000Z-210415T1915Z/
Stephens TX-
121 PM CDT Thu Apr 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR STEPHENS COUNTY...

At 121 PM CDT, a severe thunderstorm was located near Crystal Falls,
or near Breckenridge, moving east at 45 mph.

HAZARD...Ping pong ball size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Breckenridge, Necessity, Crystal Falls and Us-
180 Near The Shackelford-Stephens County Line.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection stay inside a sturdy structure and keep away from
windows.

&&

LAT...LON 3295 9910 3295 9858 3264 9858 3269 9910
TIME...MOT...LOC 1821Z 282DEG 39KT 3284 9896 

HAIL...1.50IN
WIND...<50MPH
 
$$

Barnes
323 
WWUS54 KFWD 151835
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
135 PM CDT Thu Apr 15 2021

TXC429-151915-
/O.CON.KFWD.SV.W.0083.000000T0000Z-210415T1915Z/
Stephens TX-
135 PM CDT Thu Apr 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR NORTHEASTERN STEPHENS COUNTY...

At 134 PM CDT, a severe thunderstorm was located near Breckenridge,
moving east at 45 mph.

HAZARD...Ping pong ball size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Breckenridge, Necessity and Crystal Falls. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection stay inside a sturdy structure and keep away from
windows.

&&

LAT...LON 3268 9896 3295 9894 3295 9858 3264 9858
TIME...MOT...LOC 1834Z 288DEG 41KT 3277 9880 

HAIL...1.50IN
WIND...<50MPH
 
$$

Barnes
227 
WWUS54 KFWD 151846
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
146 PM CDT Thu Apr 15 2021

TXC429-151915-
/O.CON.KFWD.SV.W.0083.000000T0000Z-210415T1915Z/
Stephens TX-
146 PM CDT Thu Apr 15 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 215 PM CDT
FOR NORTHEASTERN STEPHENS COUNTY...

At 145 PM CDT, a severe thunderstorm was located near Possum Kingdom
State Park, or 18 miles east of Breckenridge, moving east at 55 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

This severe thunderstorm will remain over mainly rural areas of
northeastern Stephens County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection stay inside a sturdy structure and keep away from
windows.

&&

LAT...LON 3266 9874 3295 9873 3295 9858 3264 9858
TIME...MOT...LOC 1845Z 271DEG 47KT 3281 9860 

HAIL...1.00IN
WIND...<50MPH
 
$$

Barnes
160 
WWUS54 KFWD 151905
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
205 PM CDT Thu Apr 15 2021

TXC429-151915-
/O.EXP.KFWD.SV.W.0083.000000T0000Z-210415T1915Z/
Stephens TX-
205 PM CDT Thu Apr 15 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN STEPHENS COUNTY
WILL EXPIRE AT 215 PM CDT...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

LAT...LON 3266 9874 3295 9873 3295 9858 3264 9858
TIME...MOT...LOC 1905Z 279DEG 33KT 3278 9839 

$$

Barnes

The office that day

Everything else NWS Fort Worth, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 14, 8:48 PM CDTSpecial Weather StatementFWDMontague27 min
Apr 14, 9:55 PM CDTSpecial Weather StatementFWDGrayson35 min
Apr 15, 9:38 AM CDTSpecial Weather StatementFWDStephens37 min
Apr 15, 12:08 PM CDTSpecial Weather StatementFWDMills37 min
Apr 15, 1:48 PM CDTSpecial Weather StatementFWDPalo Pinto27 min
Apr 15, 2:22 PM CDTSevere Thunderstorm WarningFWDLampasas, Mills15 min
Apr 15, 3:17 PM CDTSpecial Weather StatementFWDComanche28 min
Apr 15, 3:41 PM CDTSpecial Weather StatementFWDHamilton34 min
Apr 15, 4:01 PM CDTSpecial Weather StatementFWDBell29 min
Apr 15, 4:21 PM CDTSpecial Weather StatementFWDFalls24 min
Apr 15, 4:23 PM CDTSpecial Weather StatementFWDMilam37 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021Every 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.