Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 6, NWS Fort Worth, TX

April 23, 2021Denton County, Texas

NWS Fort Worth, TX issued this tornado warning at Apr 23, 2021, 6:45 PM CDT for Denton County, Texas. It was in force for 19 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 23, 2021, 6:45 PM CDT (23:45 UTC)
Expired: Apr 23, 2021, 7:04 PM CDT
In force: 19 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Denton County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 91 km from the middle of the area, began a volume at 23:49 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 23, 12:37 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 11.8 hours before the alert went out and 64 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: 14 J/kg
Mixed-layer CIN: -89 J/kg
Mixed-layer LCL: 578 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 397 m²/s²
0-3 km storm-relative helicity: 249 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.3

Open this sounding in Storm Lab

The text

As transmitted.

926 
WFUS54 KFWD 232345
TORFWD
TXC121-240015-
/O.NEW.KFWD.TO.W.0006.210423T2345Z-210424T0015Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Fort Worth TX
645 PM CDT Fri Apr 23 2021

The National Weather Service in Fort Worth has issued a

* Tornado Warning for...
  Northeastern Denton County in north central Texas...

* Until 715 PM CDT.
    
* At 645 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Denton, moving northeast at 25 mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This dangerous storm will be near...
  Krugerville around 655 PM CDT.
  Aubrey and Ray Roberts Park Isle Du Bois around 705 PM CDT.
  Pilot Point around 715 PM CDT.

This includes Interstate 35 between mile markers 473 and 476.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to an interior room on the lowest floor of a
sturdy building. Avoid windows. If you are outdoors, in a mobile
home, or in a vehicle, move to the closest substantial shelter and
protect yourself from flying debris.

&&

LAT...LON 3341 9684 3333 9684 3323 9709 3331 9721
      3342 9711
TIME...MOT...LOC 2345Z 229DEG 20KT 3329 9712 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Barnes

2 follow-up statements

034 
WWUS54 KFWD 232355
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
655 PM CDT Fri Apr 23 2021

TXC121-240015-
/O.CON.KFWD.TO.W.0006.000000T0000Z-210424T0015Z/
Denton TX-
655 PM CDT Fri Apr 23 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
NORTHEASTERN DENTON COUNTY...
    
At 654 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Ray Roberts Park Isle Du Bois, or 7 miles east of 
Sanger, moving northeast at 25 mph. The rotation has weakened, but 
we will continue to monitor this storm over the next few minutes. 

HAZARD...Tornado.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

This dangerous storm will be near...
  Ray Roberts Park Isle Du Bois around 700 PM CDT.
  Aubrey around 705 PM CDT.
  Pilot Point around 715 PM CDT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! If you are outdoors, in a mobile home, or in a
vehicle, move to the closest substantial shelter now!  Get to an
interior room on the lowest floor of a sturdy building and avoid
windows.

&&

LAT...LON 3327 9708 3334 9712 3342 9703 3341 9684
      3336 9684
TIME...MOT...LOC 2354Z 242DEG 24KT 3333 9705 

TORNADO...RADAR INDICATED
HAIL...<.75IN

$$

Barnes

891 
WWUS54 KFWD 240004
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
704 PM CDT Fri Apr 23 2021

TXC121-240014-
/O.CAN.KFWD.TO.W.0006.000000T0000Z-210424T0015Z/
Denton TX-
704 PM CDT Fri Apr 23 2021

...THE TORNADO WARNING FOR NORTHEASTERN DENTON COUNTY IS CANCELLED...
                
The rotation associated with the storm that prompted the Tornado
Warning has weakened, and no longer appears capable of producing a
tornado. Therefore the Tornado Warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 800 PM CDT for
north central Texas.

LAT...LON 3327 9708 3334 9712 3342 9703 3341 9684
      3336 9684
TIME...MOT...LOC 0003Z 229DEG 20KT 3337 9700 

$$

Barnes

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 12:45 PM CDT	Special Weather Statement	FWD	Parker	30 min
Apr 23, 1:13 PM CDT	Special Weather Statement	FWD	Tarrant	32 min
Apr 23, 1:32 PM CDT	Special Weather Statement	FWD	Tarrant	28 min
Apr 23, 1:44 PM CDT	Special Weather Statement	FWD	Jack	31 min
Apr 23, 1:47 PM CDT	Special Weather Statement	FWD	Dallas, Rockwall	28 min
Apr 23, 2:03 PM CDT	Severe Thunderstorm Warning	FWD	Jack, Montague, Wise	42 min
Apr 23, 2:08 PM CDT	Special Weather Statement	FWD	Dallas	37 min
Apr 23, 2:27 PM CDT	Severe Thunderstorm Warning	FWD	Collin, Dallas, Rockwall	63 min
Apr 23, 2:32 PM CDT	River Flood Warning	FWD	Hunt	42 hr
Apr 23, 2:32 PM CDT	River Flood Warning	FWD	Hunt, Kaufman, Rockwall	38 hr
Apr 23, 2:42 PM CDT	Severe Thunderstorm Warning	FWD	Cooke, Montague	39 min
Apr 23, 3:12 PM CDT	Severe Thunderstorm Warning	FWD	Hunt	63 min
Apr 23, 3:16 PM CDT	Special Weather Statement	FWD	Johnson	29 min
Apr 23, 3:28 PM CDT	Special Weather Statement	FWD	McLennan	47 min
Apr 23, 3:42 PM CDT	River Flood Warning	FWD	Dallas	14 hr
Apr 23, 3:46 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, McLennan	23 min
Apr 23, 4:10 PM CDT	Special Weather Statement	FWD	Cooke	35 min
Apr 23, 4:17 PM CDT	Special Weather Statement	FWD	Kaufman	28 min
Apr 23, 4:35 PM CDT	Special Weather Statement	FWD	Wise	25 min
Apr 23, 5:10 PM CDT	Special Weather Statement	FWD	Comanche	35 min
Apr 23, 5:33 PM CDT	Severe Thunderstorm Warning	FWD	Lampasas	57 min
Apr 23, 5:48 PM CDT	Severe Thunderstorm Warning	FWD	Bosque, Comanche, Erath, Hamilton	57 min
Apr 23, 6:25 PM CDT	Special Weather Statement	FWD	Coryell	35 min
Apr 23, 6:34 PM CDT	Special Weather Statement	FWD	Johnson	26 min
Apr 23, 6:38 PM CDT	Special Weather Statement	FWD	Bosque	37 min
Apr 23, 6:57 PM CDT	Special Weather Statement	FWD	Bell	33 min

Nearby

Tornado Warnings in Texas, 2021 Every tornado warning in 2021 Tornadoes 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.