Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 92, NWS Fort Worth, TX

April 23, 2021Fannin County, Lamar County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 23, 2021, 9:12 PM CDT for Fannin County, Lamar County, Texas. It was in force for 63 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 23, 2021, 9:12 PM CDT (02:12 UTC)
Expired
Apr 23, 2021, 10:15 PM CDT
In force
63 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
0.88 in
Wind
60.0 mph

Counties Fannin County, TX, Lamar County, TX

The radar

The Western Arkansas radar (KSRX), 199 km from the middle of the area, began a volume at 02:15 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.

What was reported inside it

TimeReportWhereRemark
Apr 23, 9:53 PM CDTTSTM WND DMG10 N Paris, TXTREE 12 INCHES IN DIAMETER UPROOTED AND DOWN. TIME ESTIMATED VIA RADAR.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.2 hours before the alert went out and 189 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 2021-04-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 364 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 2021-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 252 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
364 J/kg
Mixed-layer CIN
-58 J/kg
Mixed-layer LCL
812 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
252 m²/s²
0-3 km storm-relative helicity
291 m²/s²
Significant tornado parameter
0.6
Supercell composite
7.5

Open this sounding in Storm Lab

The text

As transmitted.

972 
WUUS54 KFWD 240212
SVRFWD
TXC147-277-240315-
/O.NEW.KFWD.SV.W.0092.210424T0212Z-210424T0315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
912 PM CDT Fri Apr 23 2021

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Northern Lamar County in north central Texas...
  Northeastern Fannin County in north central Texas...

* Until 1015 PM CDT.

* At 912 PM CDT, a severe thunderstorm was located 10 miles north of
  Honey Grove, or 19 miles northeast of Bonham, moving northeast at
  35 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Paris, Honey Grove, Windom and Toco. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3393 9556 3388 9554 3389 9552 3388 9549
      3389 9546 3387 9546 3387 9540 3388 9531
      3374 9531 3354 9600 3380 9610 3386 9599
      3386 9594 3389 9593 3384 9584 3386 9581
      3384 9577 3389 9575 3388 9570 3394 9559
TIME...MOT...LOC 0212Z 234DEG 31KT 3374 9589 

HAIL...0.88IN
WIND...60MPH
$$

Barnes
2 follow-up statements
757 
WWUS54 KFWD 240243
SVSFWD

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

TXC147-240252-
/O.CAN.KFWD.SV.W.0092.000000T0000Z-210424T0315Z/
Fannin TX-
943 PM CDT Fri Apr 23 2021

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

LAT...LON 3359 9583 3385 9580 3385 9579 3384 9577
      3386 9576 3388 9571 3388 9570 3390 9566
      3391 9565 3394 9559 3393 9556 3388 9554
      3389 9552 3388 9549 3389 9546 3387 9546
      3387 9540 3388 9531 3375 9531
TIME...MOT...LOC 0242Z 249DEG 25KT 3378 9566 

$$

TXC277-240315-
/O.CON.KFWD.SV.W.0092.000000T0000Z-210424T0315Z/
Lamar TX-
943 PM CDT Fri Apr 23 2021

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

At 942 PM CDT, a severe thunderstorm was located 10 miles northwest
of Paris, moving east at 30 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Paris and Toco. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3359 9583 3385 9580 3385 9579 3384 9577
      3386 9576 3388 9571 3388 9570 3390 9566
      3391 9565 3394 9559 3393 9556 3388 9554
      3389 9552 3388 9549 3389 9546 3387 9546
      3387 9540 3388 9531 3375 9531
TIME...MOT...LOC 0242Z 249DEG 25KT 3378 9566 

HAIL...0.88IN
WIND...60MPH
 
$$

30
277 
WWUS54 KFWD 240314
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1014 PM CDT Fri Apr 23 2021

TXC277-240320-
/O.EXP.KFWD.SV.W.0092.000000T0000Z-210424T0315Z/
Lamar TX-
1014 PM CDT Fri Apr 23 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LAMAR COUNTY WILL
EXPIRE AT 1015 PM CDT...
        
The storm which prompted the warning is moving out of the warned 
area. Therefore the warning will be allowed to expire. However gusty 
winds are still possible with this thunderstorm.

LAT...LON 3359 9583 3385 9580 3385 9579 3384 9577
      3386 9576 3388 9571 3388 9570 3390 9566
      3391 9565 3394 9559 3393 9556 3388 9554
      3389 9552 3388 9549 3389 9546 3387 9546
      3387 9540 3388 9531 3375 9531
TIME...MOT...LOC 0310Z 234DEG 31KT 3391 9544 

$$

30

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 7:11 PM CDTSpecial Weather StatementFWDEllis34 min
Apr 23, 8:56 PM CDTSpecial Weather StatementFWDFannin34 min
Apr 23, 9:40 PM CDTSevere Thunderstorm WarningFWDMontague65 min
Apr 23, 10:41 PM CDTSpecial Weather StatementFWDCooke, Grayson, Jack, Montague, Wise49 min
Apr 23, 11:17 PM CDTSpecial Weather StatementFWDGrayson13 min
Apr 23, 11:28 PM CDTSpecial Weather StatementFWDCollin, Denton, Fannin, Grayson, Wise32 min
Apr 24, 12:04 AM CDTSpecial Weather StatementFWDCollin, Dallas, Denton, Hunt, Rockwall, Tarrant56 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.