Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 16, NWS Fort Worth, TX

March 17, 20215 counties in Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Mar 17, 2021, 6:06 AM CDT for 5 counties in Texas. It was in force for 54 min. 2 reports 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
Mar 17, 2021, 6:06 AM CDT (11:06 UTC)
Expired
Mar 17, 2021, 7:00 AM CDT
In force
54 min
Issued by
NWS Fort Worth, TX
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Delta County, TX, Hopkins County, TX, Hunt County, TX, Rains County, TX, Van Zandt County, TX

The radar

The Dallas/Ft Worth radar (KFWS), 163 km from the middle of the area, began a volume at 11:07 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
Mar 17, 6:27 AM CDTTSTM WND GST 62Grand Saline, TX
Mar 17, 6:44 AM CDTTSTM WND DMG7 W Lone Oak, TX4-6 INCH DIAMETER TREES DOWN IN WEILAND OFF OF CR 3153.

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
Mar 17, 4:37 AM CDTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 11.1 hours before the alert went out and 157 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 2021-03-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1277 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 2021-03-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 158 square meters per square second.19395878Sfc1 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
1277 J/kg
Mixed-layer CIN
-111 J/kg
Mixed-layer LCL
1084 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
158 m²/s²
0-3 km storm-relative helicity
237 m²/s²
Significant tornado parameter
0.6
Supercell composite
2.5

Open this sounding in Storm Lab

The text

As transmitted.

174 
WUUS54 KFWD 171106
SVRFWD
TXC119-223-231-379-467-171200-
/O.NEW.KFWD.SV.W.0016.210317T1106Z-210317T1200Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Fort Worth TX
606 AM CDT Wed Mar 17 2021

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Eastern Hunt County in north central Texas...
  Van Zandt County in north central Texas...
  Hopkins County in north central Texas...
  Rains County in north central Texas...
  Delta County in north central Texas...

* Until 700 AM CDT.

* At 605 AM CDT, severe thunderstorms were located along a line
  extending from Greenville to Canton, moving northeast 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...
  Greenville, Sulphur Springs, Commerce, Canton, Wills Point, Grand
  Saline, Van, Cooper, West Tawakoni, Edgewood, Wolfe City, Emory,
  East Tawakoni, Cumby, Como, Campbell, Fruitvale, Edom, Purtis Creek
  State Park and Cooper Lake Park Doctors Creek.

This includes the following highways...
 Interstate 20 between mile markers 513 and 542.
 Interstate 30 between mile markers 98 and 142.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately. Lightning can kill.

&&

LAT...LON 3296 9531 3296 9566 3272 9564 3268 9559
      3248 9560 3236 9545 3236 9607 3338 9606
      3341 9586 3342 9546 3338 9531
TIME...MOT...LOC 1105Z 243DEG 47KT 3322 9612 3244 9593 

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

Stalley
2 follow-up statements
791 
WWUS54 KFWD 171133
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
633 AM CDT Wed Mar 17 2021

TXC231-171142-
/O.CAN.KFWD.SV.W.0016.000000T0000Z-210317T1200Z/
Hunt TX-
633 AM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN HUNT COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area.Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
north central Texas.

LAT...LON 3296 9531 3296 9566 3272 9564 3268 9559
      3249 9560 3247 9560 3236 9545 3236 9598
      3288 9584 3342 9546 3338 9531
TIME...MOT...LOC 1132Z 255DEG 43KT 3315 9554 3251 9559 

$$

TXC119-223-379-467-171200-
/O.CON.KFWD.SV.W.0016.000000T0000Z-210317T1200Z/
Van Zandt TX-Hopkins TX-Rains TX-Delta TX-
633 AM CDT Wed Mar 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM CDT
FOR VAN ZANDT...HOPKINS...RAINS AND EAST CENTRAL DELTA COUNTIES...

At 632 AM CDT, severe thunderstorms were located along a line
extending from near Sulphur Springs to near Van, moving east 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...
Sulphur Springs, Canton, Grand Saline, Van, Edgewood, Emory, Como,
Fruitvale and Edom.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with these storms.
Move indoors immediately.

&&

LAT...LON 3296 9531 3296 9566 3272 9564 3268 9559
      3249 9560 3247 9560 3236 9545 3236 9598
      3288 9584 3342 9546 3338 9531
TIME...MOT...LOC 1132Z 255DEG 43KT 3315 9554 3251 9559 

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

Stalley
361 
WWUS54 KFWD 171150
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
650 AM CDT Wed Mar 17 2021

TXC119-223-379-467-171200-
/O.EXP.KFWD.SV.W.0016.000000T0000Z-210317T1200Z/
Van Zandt TX-Hopkins TX-Rains TX-Delta TX-
650 AM CDT Wed Mar 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR VAN ZANDT...HOPKINS...RAINS
AND EAST CENTRAL DELTA COUNTIES WILL EXPIRE AT 700 AM CDT...
    
The storms which prompted the warning are moving out of the area.
Therefore the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1000 AM CDT for
north central Texas.

LAT...LON 3296 9531 3296 9566 3272 9564 3268 9559
      3249 9560 3247 9560 3236 9545 3236 9598
      3288 9584 3342 9546 3338 9531
TIME...MOT...LOC 1150Z 243DEG 47KT 3325 9531 3261 9536 

$$

Stalley

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 17, 2:26 AM CDTSevere Thunderstorm WarningFWDComanche, Eastland, Erath, Hamilton, Mills79 min
Mar 17, 3:14 AM CDTSpecial Weather StatementFWDJack46 min
Mar 17, 3:38 AM CDTSevere Thunderstorm WarningFWDBosque, Erath, Hill, Hood, Johnson, Somervell67 min
Mar 17, 3:40 AM CDTSevere Thunderstorm WarningFWDDenton, Parker, Tarrant, Wise65 min
Mar 17, 4:38 AM CDTSevere Thunderstorm WarningFWDDallas, Ellis, Hill, Johnson, Tarrant82 min
Mar 17, 4:57 AM CDTSevere Thunderstorm WarningFWDFalls, Freestone, Hill, Limestone, McLennan, Navarro48 min
Mar 17, 5:04 AM CDTAreal Flood AdvisoryFWDDallas, Tarrant116 min
Mar 17, 5:19 AM CDTSevere Thunderstorm WarningFWDCollin, Hunt, Kaufman, Rockwall, Van Zandt56 min
Mar 17, 6:22 AM CDTSpecial Weather StatementFWDAnderson, Freestone, Henderson53 min
Mar 17, 6:40 AM CDTSpecial Weather StatementFWDBell50 min
Mar 17, 6:43 AM CDTSevere Thunderstorm WarningFWDBell21 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.