Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 71, NWS Fort Worth, TX

April 9, 2021Fannin County, Lamar County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 9, 2021, 9:42 PM CDT for Fannin County, Lamar County, Texas. It was in force for 78 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 9, 2021, 9:42 PM CDT (02:42 UTC)
Expired
Apr 9, 2021, 11:00 PM CDT
In force
78 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Fannin County, TX, Lamar County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 182 km from the middle of the area, began a volume at 02:43 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 9, 10:33 PM CDTTSTM WND DMG5 N Sun Valley, TXTREES DOWN NEAR FAUGHT, TX. FD ON SCENE CLEARING TREES.

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

The watch it was issued in

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

IssuedProductOfficeLasted
Apr 9, 4:27 PM CDTSevere Thunderstorm WatchSPC9 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.7 hours before the alert went out and 162 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 2021-04-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3129 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 2021-04-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 101 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
3129 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
1600 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
101 m²/s²
0-3 km storm-relative helicity
128 m²/s²
Significant tornado parameter
0.7
Supercell composite
11.7

Open this sounding in Storm Lab

The text

As transmitted.

957 
WUUS54 KFWD 100242
SVRFWD
TXC147-277-100400-
/O.NEW.KFWD.SV.W.0071.210410T0242Z-210410T0400Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
942 PM CDT Fri Apr 9 2021

The National Weather Service in Fort Worth has issued a

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

* Until 1100 PM CDT.

* At 941 PM CDT, severe thunderstorms were located along a line 
  extending from near Savoy to Telephone to Antlers, moving 
  southeast at 55 mph.

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

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Paris, Bonham, Leonard, Honey Grove, Whitewright, Blossom, Savoy,
  Ector, Deport, Dodd City, Bailey, Ravenna, Bonham State Park,
  Roxton, Trenton, Ladonia, Pecan Gap, Windom, Toco and Sun Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3388 9554 3388 9531 3338 9531 3348 9556
      3350 9577 3346 9586 3341 9587 3334 9639
      3372 9638 3369 9636 3370 9636 3377 9629
      3376 9619 3384 9615 3384 9602 3389 9594
      3384 9577 3389 9575 3394 9560
TIME...MOT...LOC 0241Z 295DEG 46KT 3428 9534 3360 9628 

HAIL...0.75IN
WIND...60MPH
$$

Dunn
5 follow-up statements
491 
WWUS54 KFWD 100303
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1003 PM CDT Fri Apr 9 2021

TXC147-277-100400-
/O.CON.KFWD.SV.W.0071.000000T0000Z-210410T0400Z/
Lamar TX-Fannin TX-
1003 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR LAMAR AND FANNIN COUNTIES...

At 1003 PM CDT, severe thunderstorms were located along a line 
extending from Fort Towson to Whitewright, moving southeast at 45 
mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Paris, Bonham, Leonard, Honey Grove, Whitewright, Blossom, Savoy,
Ector, Deport, Dodd City, Bailey, Ravenna, Bonham State Park, Roxton,
Trenton, Ladonia, Pecan Gap, Windom, Toco and Sun Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3388 9554 3388 9531 3338 9531 3348 9556
      3350 9577 3346 9586 3341 9587 3334 9639
      3372 9638 3369 9636 3370 9636 3377 9629
      3376 9619 3384 9615 3384 9602 3389 9594
      3384 9577 3389 9575 3394 9560
TIME...MOT...LOC 0303Z 304DEG 38KT 3403 9525 3337 9639 

HAIL...0.75IN
WIND...60MPH
 
$$

Dunn
870 
WWUS54 KFWD 100321
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1021 PM CDT Fri Apr 9 2021

TXC147-277-100400-
/O.CON.KFWD.SV.W.0071.000000T0000Z-210410T0400Z/
Lamar TX-Fannin TX-
1021 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR LAMAR AND FANNIN COUNTIES...

At 1021 PM CDT, severe thunderstorms were located along a line
extending from near Powderly to Leonard, moving southeast at 50 mph.

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

SOURCE...Radar indicated.

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

Locations impacted include...
Paris, Bonham, Leonard, Honey Grove, Blossom, Deport, Dodd City,
Bailey, Bonham State Park, Roxton, Ladonia, Pecan Gap, Windom, Toco
and Sun Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3388 9554 3388 9531 3338 9531 3348 9556
      3350 9577 3346 9586 3341 9587 3335 9633
      3359 9624 3367 9616 3376 9598 3386 9583
      3384 9577 3389 9575 3394 9560
TIME...MOT...LOC 0321Z 294DEG 44KT 3396 9506 3330 9620 

HAIL...0.75IN
WIND...60MPH
 
$$

Dunn
164 
WWUS54 KFWD 100337
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1037 PM CDT Fri Apr 9 2021

TXC147-277-100400-
/O.CON.KFWD.SV.W.0071.000000T0000Z-210410T0400Z/
Lamar TX-Fannin TX-
1037 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR LAMAR AND SOUTHEASTERN FANNIN COUNTIES...

At 1037 PM CDT, severe thunderstorms were located along a line
extending from near Idabel to near Campbell, moving southeast at 55
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Paris, Honey Grove, Blossom, Deport, Roxton, Ladonia, Pecan Gap, Toco
and Sun Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3388 9554 3388 9531 3338 9531 3348 9556
      3350 9577 3346 9586 3341 9587 3339 9615
      3353 9602 3361 9582 3370 9562
TIME...MOT...LOC 0337Z 295DEG 46KT 3388 9484 3322 9599 

HAIL...<.75IN
WIND...60MPH
 
$$

Dunn
147 
WWUS54 KFWD 100352
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1052 PM CDT Fri Apr 9 2021

TXC147-100402-
/O.CAN.KFWD.SV.W.0071.000000T0000Z-210410T0400Z/
Fannin TX-
1052 PM CDT Fri Apr 9 2021

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

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
north central Texas.

LAT...LON 3338 9531 3348 9556 3350 9577 3359 9564
      3359 9552 3352 9532
TIME...MOT...LOC 0352Z 280DEG 38KT 3348 9550 

$$

TXC277-100400-
/O.CON.KFWD.SV.W.0071.000000T0000Z-210410T0400Z/
Lamar TX-
1052 PM CDT Fri Apr 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1100 PM CDT
FOR SOUTHERN LAMAR COUNTY...

At 1052 PM CDT, a severe thunderstorm was located 10 miles west of
Deport, or 15 miles south of Paris, moving east 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.

This severe thunderstorm will remain over mainly rural areas of
southern Lamar County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3338 9531 3348 9556 3350 9577 3359 9564
      3359 9552 3352 9532
TIME...MOT...LOC 0352Z 280DEG 38KT 3348 9550 

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

Dunn
070 
WWUS54 KFWD 100358
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1058 PM CDT Fri Apr 9 2021

TXC277-100408-
/O.EXP.KFWD.SV.W.0071.000000T0000Z-210410T0400Z/
Lamar TX-
1058 PM CDT Fri Apr 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LAMAR COUNTY WILL
EXPIRE AT 1100 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits. Therefore the warning will be allowed to expire. However
gusty winds are still possible with this thunderstorm.

A Severe Thunderstorm Watch remains in effect until 100 AM CDT for
north central Texas.

LAT...LON 3338 9531 3348 9556 3350 9577 3359 9564
      3359 9552 3352 9532
TIME...MOT...LOC 0358Z 295DEG 46KT 3345 9543 

$$

Dunn

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 9, 7:01 PM CDTSevere Thunderstorm WarningFWDDallas44 min
Apr 9, 7:27 PM CDTSevere Thunderstorm WarningFWDEllis, Hill, Navarro63 min
Apr 9, 7:41 PM CDTSevere Thunderstorm WarningFWDDallas, Hunt, Kaufman, Rockwall49 min
Apr 9, 7:53 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson82 min
Apr 9, 7:59 PM CDTSevere Thunderstorm WarningFWDDallas49 min
Apr 9, 8:08 PM CDTSevere Thunderstorm WarningFWDNavarro82 min
Apr 9, 8:31 PM CDTSevere Thunderstorm WarningFWDDallas, Kaufman, Rockwall30 min
Apr 9, 8:36 PM CDTSevere Thunderstorm WarningFWDAnderson, Henderson, Van Zandt54 min
Apr 9, 8:55 PM CDTSevere Thunderstorm WarningFWDCooke, Grayson65 min
Apr 9, 9:04 PM CDTSevere Thunderstorm WarningFWDAnderson71 min
Apr 9, 10:00 PM CDTSevere Thunderstorm WarningFWDAnderson, Freestone, Leon75 min
Apr 9, 10:33 PM CDTSpecial Weather StatementFWDDelta, Hopkins, Hunt42 min
Apr 9, 10:43 PM CDTSevere Thunderstorm WarningFWDDelta, Hopkins, Hunt46 min
Apr 9, 11:24 PM CDTSevere Thunderstorm WarningFWDRains, Van Zandt47 min
Apr 9, 11:40 PM CDTSevere Thunderstorm WarningFWDHenderson, Kaufman, Van Zandt63 min
Apr 10, 12:22 AM CDTSpecial Weather StatementFWDAnderson53 min
Apr 10, 1:15 AM CDTSpecial Weather StatementFWDLeon45 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.