Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 76, NWS Fort Worth, TX

April 12, 2021Stephens County, Young County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 12, 2021, 10:32 PM CDT for Stephens County, Young County, Texas. It was in force for 58 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 12, 2021, 10:32 PM CDT (03:32 UTC)
Expired
Apr 12, 2021, 11:30 PM CDT
In force
58 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
50.0 mph

Counties Stephens County, TX, Young County, TX

The radar

The Dyess AFB radar (KDYX), 58 km from the middle of the area, began a volume at 03:32 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

TimeReportWhereRemark
Apr 12, 10:37 PM CDTHAIL 23 Sse Breckenridge, TXDELAYED REPORT. EMERGENCY MANAGER REPORTED TWO INCH HAIL AT STEPHENS COUNTY AIRPORT. TIME ESTIMATED VIA RADAR.

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, 3.5 hours before the alert went out and 143 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 00:00Z on 2021-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1192 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Fort Worth, TX at 00:00Z on 2021-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
1192 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
1812 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.7

Open this sounding in Storm Lab

The text

As transmitted.

403 
WUUS54 KFWD 130332
SVRFWD
TXC429-503-130430-
/O.NEW.KFWD.SV.W.0076.210413T0332Z-210413T0430Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
1032 PM CDT Mon Apr 12 2021

The National Weather Service in Fort Worth has issued a

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

* Until 1130 PM CDT.

* At 1032 PM CDT, a severe thunderstorm was located near
  Breckenridge, moving northeast at 30 mph.

  HAZARD...Quarter size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is possible.

* Locations impacted include...
  Graham, Breckenridge, Necessity, Gunsight, Crystal Falls and
  Newcastle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3285 9907 3296 9898 3296 9895 3299 9895
      3323 9874 3311 9845 3295 9854 3295 9858
      3290 9857 3252 9880 3264 9908
TIME...MOT...LOC 0332Z 206DEG 28KT 3267 9891 

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

79
4 follow-up statements
188 
WWUS54 KFWD 130339
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1039 PM CDT Mon Apr 12 2021

TXC429-503-130430-
/O.CON.KFWD.SV.W.0076.000000T0000Z-210413T0430Z/
Young TX-Stephens TX-
1039 PM CDT Mon Apr 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHERN YOUNG AND STEPHENS COUNTIES...

At 1038 PM CDT, a severe thunderstorm was located near Breckenridge,
moving northeast at 30 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...
Graham, Breckenridge, Necessity, Gunsight, Crystal Falls and
Newcastle.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3285 9907 3296 9898 3296 9895 3299 9895
      3323 9874 3311 9845 3295 9854 3295 9858
      3290 9857 3252 9880 3264 9908
TIME...MOT...LOC 0338Z 206DEG 28KT 3272 9888 

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

79
973 
WWUS54 KFWD 130355
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1055 PM CDT Mon Apr 12 2021

TXC429-503-130430-
/O.CON.KFWD.SV.W.0076.000000T0000Z-210413T0430Z/
Young TX-Stephens TX-
1055 PM CDT Mon Apr 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHERN YOUNG AND STEPHENS COUNTIES...

At 1055 PM CDT, a severe thunderstorm was located 7 miles east of
Breckenridge, moving northeast at 30 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3285 9907 3296 9898 3296 9895 3299 9895
      3323 9874 3311 9845 3295 9854 3295 9858
      3290 9857 3252 9880 3274 9907
TIME...MOT...LOC 0355Z 211DEG 25KT 3280 9879 

HAIL...1.25IN
WIND...<50MPH
 
$$

79
230 
WWUS54 KFWD 130407
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1107 PM CDT Mon Apr 12 2021

TXC429-503-130430-
/O.CON.KFWD.SV.W.0076.000000T0000Z-210413T0430Z/
Young TX-Stephens TX-
1107 PM CDT Mon Apr 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1130 PM CDT
FOR SOUTHERN YOUNG AND NORTHERN STEPHENS COUNTIES...

At 1107 PM CDT, a severe thunderstorm was located 9 miles east of
Crystal Falls, or 13 miles northeast of Breckenridge, moving
northeast at 30 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

Locations impacted include...
Graham, Breckenridge, Crystal Falls and Newcastle. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3286 9905 3296 9898 3296 9895 3299 9895
      3323 9874 3311 9845 3295 9854 3295 9858
      3290 9857 3273 9867 3280 9907
TIME...MOT...LOC 0407Z 209DEG 27KT 3286 9873 

HAIL...1.25IN
WIND...<50MPH
 
$$

79
483 
WWUS54 KFWD 130425
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1125 PM CDT Mon Apr 12 2021

TXC429-503-130434-
/O.EXP.KFWD.SV.W.0076.000000T0000Z-210413T0430Z/
Young TX-Stephens TX-
1125 PM CDT Mon Apr 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN YOUNG AND NORTHERN
STEPHENS COUNTIES WILL EXPIRE AT 1130 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits. Therefore the warning will be allowed to expire. However
small hail is still possible with this thunderstorm.


LAT...LON 3286 9905 3296 9898 3296 9895 3299 9895
      3323 9874 3311 9845 3295 9854 3295 9858
      3290 9857 3273 9867 3280 9907
TIME...MOT...LOC 0424Z 212DEG 29KT 3295 9863 

$$

79

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 12, 10:27 PM CDTSpecial Weather StatementFWDStephens33 min
Apr 12, 11:04 PM CDTSpecial Weather StatementFWDPalo Pinto26 min
Apr 12, 11:32 PM CDTSevere Thunderstorm WarningFWDYoung58 min
Apr 12, 11:40 PM CDTSpecial Weather StatementFWDYoung35 min
Apr 13, 12:42 AM CDTSpecial Weather StatementFWDPalo Pinto33 min
Apr 13, 1:06 AM CDTSpecial Weather StatementFWDParker24 min
Apr 13, 1:08 AM CDTSpecial Weather StatementFWDYoung37 min
Apr 13, 1:55 AM CDTSpecial Weather StatementFWDJohnson35 min
Apr 13, 1:59 AM CDTSevere Thunderstorm WarningFWDEastland61 min
Apr 13, 2:40 AM CDTSpecial Weather StatementFWDTarrant35 min
Apr 13, 2:46 AM CDTSevere Thunderstorm WarningFWDEastland, Erath59 min
Apr 13, 3:19 AM CDTSpecial Weather StatementFWDDallas26 min
Apr 13, 3:30 AM CDTSevere Thunderstorm WarningFWDDallas37 min
Apr 13, 3:43 AM CDTSevere Thunderstorm WarningFWDErath44 min
Apr 13, 4:11 AM CDTSevere Thunderstorm WarningFWDHood, Somervell43 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.