Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 99, NWS Fort Worth, TX

April 28, 2021Comanche County, Erath County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 28, 2021, 7:30 PM CDT for Comanche County, Erath County, Texas. It was in force for 31 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 28, 2021, 7:30 PM CDT (00:30 UTC)
Expired: Apr 28, 2021, 8:01 PM CDT
In force: 31 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Comanche County, TX, Erath County, TX

The radar

The Dyess AFB radar (KDYX), 107 km from the middle of the area, began a volume at 00:32 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 28, 1:57 PM CDT	Tornado Watch	SPC	9 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 0.5 hours before the alert went out and 129 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.

439 
WUUS54 KFWD 290030
SVRFWD
TXC093-143-290130-
/O.NEW.KFWD.SV.W.0099.210429T0030Z-210429T0130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
730 PM CDT Wed Apr 28 2021

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Southern Erath County in north central Texas...
  Central Comanche County in central Texas...

* Until 830 PM CDT.

* At 730 PM CDT, a severe thunderstorm was located 10 miles north of 
  Gustine, or 10 miles northeast of Comanche, moving east at 30 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.

* Locations impacted include...
  Dublin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 900 PM CDT for central and
north central Texas.

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

&&

LAT...LON 3206 9858 3224 9795 3208 9787 3192 9820
      3186 9854
TIME...MOT...LOC 0030Z 251DEG 26KT 3197 9845 

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

Dunn

2 follow-up statements

066 
WWUS54 KFWD 290053
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
753 PM CDT Wed Apr 28 2021

TXC093-290102-
/O.CAN.KFWD.SV.W.0099.000000T0000Z-210429T0130Z/
Comanche TX-
753 PM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL COMANCHE COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 900 PM CDT for central and
north central Texas.

LAT...LON 3224 9795 3208 9787 3192 9821 3198 9825
      3194 9833 3210 9844
TIME...MOT...LOC 0052Z 251DEG 26KT 3202 9827 

$$

TXC143-290130-
/O.CON.KFWD.SV.W.0099.000000T0000Z-210429T0130Z/
Erath TX-
753 PM CDT Wed Apr 28 2021

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

At 752 PM CDT, a severe thunderstorm was located near Dublin, moving
east at 30 mph.

HAZARD...60 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...
Dublin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 900 PM CDT for central and
north central Texas.

LAT...LON 3224 9795 3208 9787 3192 9821 3198 9825
      3194 9833 3210 9844
TIME...MOT...LOC 0052Z 251DEG 26KT 3202 9827 

HAIL...1.00IN
WIND...60MPH
 
$$

Dunn

666 
WWUS54 KFWD 290101
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
801 PM CDT Wed Apr 28 2021

TXC143-290111-
/O.CAN.KFWD.SV.W.0099.000000T0000Z-210429T0130Z/
Erath TX-
801 PM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN ERATH COUNTY IS
CANCELLED...
                
The storm which prompted the warning has weakened below severe
limits. Therefore the warning has been cancelled. However small hail
and gusty winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 200 AM CDT for central and
north central Texas.

LAT...LON 3224 9795 3208 9787 3192 9821 3198 9825
      3194 9833 3210 9844
TIME...MOT...LOC 0058Z 251DEG 26KT 3204 9819 

$$

Dunn

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 28, 7:08 PM CDT	Severe Thunderstorm Warning	FWD	Parker	52 min
Apr 28, 7:47 PM CDT	Severe Thunderstorm Warning	FWD	Tarrant	73 min
Apr 28, 8:10 PM CDT	Tornado Warning	FWD	Tarrant	33 min
Apr 28, 8:42 PM CDT	Severe Thunderstorm Warning	FWD	Denton	63 min
Apr 28, 9:06 PM CDT	Severe Thunderstorm Warning	FWD	Young	54 min
Apr 28, 9:16 PM CDT	Severe Thunderstorm Warning	FWD	Delta, Hopkins, Lamar	39 min
Apr 28, 9:20 PM CDT	Severe Thunderstorm Warning	FWD	Collin	55 min
Apr 28, 10:01 PM CDT	Severe Thunderstorm Warning	FWD	Comanche	59 min
Apr 28, 10:07 PM CDT	Severe Thunderstorm Warning	FWD	Mills	53 min
Apr 28, 10:50 PM CDT	Severe Thunderstorm Warning	FWD	Erath	55 min
Apr 29, 1:32 AM CDT	Flash Flood Warning	FWD	Ellis, Johnson	3 hr
Apr 29, 1:35 AM CDT	River Flood Warning	FWD	Ellis, Navarro	3 days
Apr 29, 3:09 AM CDT	Areal Flood Advisory	FWD	Dallas	111 min
Apr 29, 3:22 AM CDT	Areal Flood Advisory	FWD	Ellis	98 min
Apr 29, 4:59 AM CDT	Areal Flood Warning	FWD	Ellis, Hill, Johnson	3 hr
Apr 29, 5:41 AM CDT	River Flood Warning	FWD	Dallas	4 hr
Apr 29, 8:12 AM CDT	River Flood Warning	FWD	Collin	25 hr
Apr 29, 8:18 AM CDT	River Flood Warning	FWD	Collin	25 hr
Apr 29, 9:33 AM CDT	River Flood Warning	FWD	Delta, Hopkins	28 hr
Apr 29, 1:43 PM CDT	River Flood Warning	FWD	Denton	22 hr
Apr 29, 5:57 PM CDT	Special Weather Statement	FWD	Rains	33 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.