Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 103, NWS Fort Worth, TX

April 28, 2021Delta County, Hopkins County, Lamar County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 28, 2021, 9:16 PM CDT for Delta County, Hopkins County, Lamar County, Texas. It was in force for 39 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, 9:16 PM CDT (02:16 UTC)
Expired
Apr 28, 2021, 9:55 PM CDT
In force
39 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Delta County, TX, Hopkins County, TX, Lamar County, TX

The radar

The Shreveport radar (KSHV), 176 km from the middle of the area, began a volume at 02:18 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.

IssuedProductOfficeLasted
Apr 28, 7:55 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.3 hours before the alert went out and 181 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 2021-04-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1526 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 2021-04-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 191 square meters per square second.1939587897Sfc1 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
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.

456 
WUUS54 KFWD 290216
SVRFWD
TXC119-223-277-290315-
/O.NEW.KFWD.SV.W.0103.210429T0216Z-210429T0315Z/

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

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Northeastern Hopkins County in north central Texas...
  Southeastern Lamar County in north central Texas...
  Northeastern Delta County in north central Texas...

* Until 1015 PM CDT.

* At 916 PM CDT, a severe thunderstorm was located near Cooper Lake 
  Park South Sulphur, or 5 miles north of Sulphur Springs, moving 
  northeast at 45 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...
  Sulphur Springs, Deport, Cooper Lake Park South Sulphur and Tira. 

This includes Interstate 30 between mile markers 128 and 132.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3320 9532 3313 9552 3321 9570 3347 9556
      3367 9531 3323 9531
TIME...MOT...LOC 0216Z 209DEG 37KT 3325 9557 

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

Dunn
3 follow-up statements
833 
WWUS54 KFWD 290233
SVSFWD

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

TXC223-290242-
/O.CAN.KFWD.SV.W.0103.000000T0000Z-210429T0315Z/
Hopkins TX-
933 PM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HOPKINS 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 200 AM CDT for north central
Texas.

LAT...LON 3336 9533 3337 9537 3337 9545 3335 9548
      3335 9553 3336 9554 3335 9556 3336 9559
      3333 9564 3347 9556 3367 9531 3337 9531
TIME...MOT...LOC 0232Z 209DEG 37KT 3340 9547 

$$

TXC119-277-290315-
/O.CON.KFWD.SV.W.0103.000000T0000Z-210429T0315Z/
Lamar TX-Delta TX-
933 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHEASTERN LAMAR AND NORTHEASTERN DELTA COUNTIES...

At 932 PM CDT, a severe thunderstorm was located 10 miles east of 
Cooper Lake Park Doctors Creek, or 15 miles west of Hagansport, 
moving northeast at 45 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...
Deport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 3336 9533 3337 9537 3337 9545 3335 9548
      3335 9553 3336 9554 3335 9556 3336 9559
      3333 9564 3347 9556 3367 9531 3337 9531
TIME...MOT...LOC 0232Z 209DEG 37KT 3340 9547 

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

Dunn
623 
WWUS54 KFWD 290239
SVSFWD

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

TXC119-290249-
/O.CAN.KFWD.SV.W.0103.000000T0000Z-210429T0315Z/
Delta TX-
939 PM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN DELTA 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 200 AM CDT for north central
Texas.

LAT...LON 3339 9538 3340 9538 3342 9543 3343 9544
      3343 9546 3345 9548 3345 9549 3344 9550
      3345 9553 3347 9556 3367 9531 3338 9531
TIME...MOT...LOC 0239Z 208DEG 39KT 3351 9541 

$$

TXC277-290315-
/O.CON.KFWD.SV.W.0103.000000T0000Z-210429T0315Z/
Lamar TX-
939 PM CDT Wed Apr 28 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1015 PM CDT
FOR SOUTHEASTERN LAMAR COUNTY...

At 939 PM CDT, a severe thunderstorm was located near Deport, or 15 
miles southeast of Paris, moving northeast at 45 mph.

HAZARD...Quarter size hail.

SOURCE...Radar indicated.

IMPACT...Damage to vehicles is possible.

Locations impacted include...
Deport.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 3339 9538 3340 9538 3342 9543 3343 9544
      3343 9546 3345 9548 3345 9549 3344 9550
      3345 9553 3347 9556 3367 9531 3338 9531
TIME...MOT...LOC 0239Z 208DEG 39KT 3351 9541 

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

Dunn
698 
WWUS54 KFWD 290255
SVSFWD

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

TXC277-290304-
/O.CAN.KFWD.SV.W.0103.000000T0000Z-210429T0315Z/
Lamar TX-
955 PM CDT Wed Apr 28 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN LAMAR COUNTY IS
CANCELLED...
        
The storm which prompted the warning has moved out of the area.
Therefore the warning has been cancelled.

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

LAT...LON 3339 9538 3340 9538 3342 9543 3343 9544
      3343 9546 3345 9548 3345 9549 3344 9550
      3345 9553 3347 9556 3367 9531 3338 9531
TIME...MOT...LOC 0253Z 209DEG 37KT 3365 9532 

$$

Dunn

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 28, 7:08 PM CDTSevere Thunderstorm WarningFWDParker52 min
Apr 28, 7:30 PM CDTSevere Thunderstorm WarningFWDComanche, Erath31 min
Apr 28, 7:47 PM CDTSevere Thunderstorm WarningFWDTarrant73 min
Apr 28, 8:10 PM CDTTornado WarningFWDTarrant33 min
Apr 28, 8:42 PM CDTSevere Thunderstorm WarningFWDDenton63 min
Apr 28, 9:06 PM CDTSevere Thunderstorm WarningFWDYoung54 min
Apr 28, 9:20 PM CDTSevere Thunderstorm WarningFWDCollin55 min
Apr 28, 10:01 PM CDTSevere Thunderstorm WarningFWDComanche59 min
Apr 28, 10:07 PM CDTSevere Thunderstorm WarningFWDMills53 min
Apr 28, 10:50 PM CDTSevere Thunderstorm WarningFWDErath55 min
Apr 29, 1:32 AM CDTFlash Flood WarningFWDEllis, Johnson3 hr
Apr 29, 1:35 AM CDTRiver Flood WarningFWDEllis, Navarro3 days
Apr 29, 3:09 AM CDTAreal Flood AdvisoryFWDDallas111 min
Apr 29, 3:22 AM CDTAreal Flood AdvisoryFWDEllis98 min
Apr 29, 4:59 AM CDTAreal Flood WarningFWDEllis, Hill, Johnson3 hr
Apr 29, 5:41 AM CDTRiver Flood WarningFWDDallas4 hr
Apr 29, 8:12 AM CDTRiver Flood WarningFWDCollin25 hr
Apr 29, 8:18 AM CDTRiver Flood WarningFWDCollin25 hr
Apr 29, 9:33 AM CDTRiver Flood WarningFWDDelta, Hopkins28 hr
Apr 29, 1:43 PM CDTRiver Flood WarningFWDDenton22 hr
Apr 29, 5:57 PM CDTSpecial Weather StatementFWDRains33 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.