Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 77, NWS Fort Worth, TX

April 12, 2021Young County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 12, 2021, 11:32 PM CDT for Young County, Texas. It was in force for 58 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 12, 2021, 11:32 PM CDT (04:32 UTC)
Expired
Apr 13, 2021, 12:30 AM CDT
In force
58 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.25 in
Wind
50.0 mph

County Young County, TX

The radar

The Dyess AFB radar (KDYX), 87 km from the middle of the area, began a volume at 04:35 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 00:00Z, 4.5 hours before the alert went out and 152 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.

012 
WUUS54 KFWD 130432
SVRFWD
TXC503-130530-
/O.NEW.KFWD.SV.W.0077.210413T0432Z-210413T0530Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
1132 PM CDT Mon Apr 12 2021

The National Weather Service in Fort Worth has issued a

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

* Until 1230 AM CDT.

* At 1131 PM CDT, a severe thunderstorm was located 8 miles northeast
  of Woodson, or 14 miles east of Throckmorton, moving northeast at
  35 mph.

  HAZARD...Half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is possible.

* Locations impacted include...
  Olney and Newcastle. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3340 9895 3339 9854 3297 9884 3303 9895
TIME...MOT...LOC 0431Z 217DEG 32KT 3311 9895 

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

79
3 follow-up statements
798 
WWUS54 KFWD 130449
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1149 PM CDT Mon Apr 12 2021

TXC503-130530-
/O.CON.KFWD.SV.W.0077.000000T0000Z-210413T0530Z/
Young TX-
1149 PM CDT Mon Apr 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR WESTERN YOUNG COUNTY...

At 1148 PM CDT, a severe thunderstorm was located 9 miles east of
Elbert, or 10 miles southwest of Olney, moving northeast at 35 mph.

HAZARD...Half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

Locations impacted include...
Olney and Newcastle. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3340 9895 3339 9854 3304 9879 3309 9895
TIME...MOT...LOC 0448Z 217DEG 31KT 3322 9884 

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

79
427 
WWUS54 KFWD 130517
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1217 AM CDT Tue Apr 13 2021

TXC503-130530-
/O.CON.KFWD.SV.W.0077.000000T0000Z-210413T0530Z/
Young TX-
1217 AM CDT Tue Apr 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT
FOR NORTH CENTRAL YOUNG COUNTY...

At 1217 AM CDT, a severe thunderstorm was located 8 miles east of
Olney, moving northeast at 35 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

This severe thunderstorm will remain over mainly rural areas of north
central Young County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3339 9875 3339 9854 3325 9864 3329 9872
TIME...MOT...LOC 0517Z 226DEG 31KT 3337 9861 

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

Dunn
585 
WWUS54 KFWD 130529
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1229 AM CDT Tue Apr 13 2021

TXC503-130539-
/O.EXP.KFWD.SV.W.0077.000000T0000Z-210413T0530Z/
Young TX-
1229 AM CDT Tue Apr 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL YOUNG COUNTY
WILL EXPIRE AT 1230 AM CDT...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning will be allowed to expire.

LAT...LON 3339 9875 3339 9854 3325 9864 3329 9872
TIME...MOT...LOC 0529Z 217DEG 32KT 3345 9854 

$$

Dunn

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, 10:32 PM CDTSevere Thunderstorm WarningFWDStephens, Young58 min
Apr 12, 11:04 PM CDTSpecial Weather StatementFWDPalo Pinto26 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.