Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 237, NWS Fort Worth, TX

September 30, 2021Erath County, Palo Pinto County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Sep 30, 2021, 7:38 PM CDT for Erath County, Palo Pinto County, Texas. It was in force for 37 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
Sep 30, 2021, 7:38 PM CDT (00:38 UTC)
Expired
Sep 30, 2021, 8:15 PM CDT
In force
37 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
65.0 mph

Counties Erath County, TX, Palo Pinto County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 77 km from the middle of the area, began a volume at 00:42 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, 0.6 hours before the alert went out and 86 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 2021-10-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 316 joules per kilogram.LCLLFCEL10008507005003002001001 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 00:00Z on 2021-10-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.193958Sfc1 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
316 J/kg
Mixed-layer CIN
-174 J/kg
Mixed-layer LCL
1274 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
258 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

873 
WUUS54 KFWD 010038
SVRFWD
TXC143-363-010115-
/O.NEW.KFWD.SV.W.0237.211001T0038Z-211001T0115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
738 PM CDT Thu Sep 30 2021

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  North central Erath County in north central Texas...
  Southeastern Palo Pinto County in north central Texas...

* Until 815 PM CDT.

* At 737 PM CDT, a severe thunderstorm was located near Huckabay, or
  9 miles north of Stephenville, moving east at 5 mph.

  HAZARD...65 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Gordon and Morgan Mill. 

This includes Interstate 20 between mile markers 370 and 389.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3271 9806 3251 9807 3240 9802 3218 9814
      3258 9841
TIME...MOT...LOC 0037Z 269DEG 5KT 3236 9826 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...65 MPH

$$

79
2 follow-up statements
374 
WWUS54 KFWD 010059
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
759 PM CDT Thu Sep 30 2021

TXC143-363-010115-
/O.CON.KFWD.SV.W.0237.000000T0000Z-211001T0115Z/
Erath TX-Palo Pinto TX-
759 PM CDT Thu Sep 30 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 815 PM CDT
FOR NORTH CENTRAL ERATH AND SOUTHEASTERN PALO PINTO COUNTIES...

At 758 PM CDT, a severe thunderstorm was located over Morgan Mill, or
15 miles north of Stephenville, moving northeast at 15 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Gordon and Morgan Mill. 

LAT...LON 3271 9806 3251 9807 3240 9802 3218 9814
      3258 9841
TIME...MOT...LOC 0058Z 228DEG 14KT 3244 9817 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

79
579 
WWUS54 KFWD 010109 RRA
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
809 PM CDT Thu Sep 30 2021

TXC143-363-010119-
/O.EXP.KFWD.SV.W.0237.000000T0000Z-211001T0115Z/
Erath TX-Palo Pinto TX-
809 PM CDT Thu Sep 30 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL ERATH AND
SOUTHEASTERN PALO PINTO COUNTIES WILL EXPIRE AT 815 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits. Therefore the warning will be allowed to expire.  However
gusty winds and heavy rain are still possible with this thunderstorm.

LAT...LON 3271 9806 3251 9807 3240 9802 3218 9814
      3258 9841
TIME...MOT...LOC 0109Z 269DEG 5KT 3244 9816 

$$

79

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 7:15 PM CDTSevere Thunderstorm WarningFWDErath60 min
Sep 30, 7:50 PM CDTAreal Flood AdvisoryFWDTarrant3 hr
Sep 30, 8:53 PM CDTSpecial Weather StatementFWDSomervell37 min
Sep 30, 8:56 PM CDTSpecial Weather StatementFWDTarrant34 min
Sep 30, 10:53 PM CDTAreal Flood AdvisoryFWDHill3 hr

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.