Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 93, NWS Fort Worth, TX

April 23, 2021Montague County, Texas

NWS Fort Worth, TX issued this severe thunderstorm warning at Apr 23, 2021, 9:40 PM CDT for Montague County, Texas. It was in force for 65 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, 9:40 PM CDT (02:40 UTC)
Expired: Apr 23, 2021, 10:45 PM CDT
In force: 65 min
Issued by: NWS Fort Worth, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Montague County, TX

The radar

The Altus AFB radar (KFDR), 130 km from the middle of the area, began a volume at 02:40 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, 8:02 PM CDT	Severe Thunderstorm Watch	SPC	4 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.7 hours before the alert went out and 118 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: 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.

039 
WUUS54 KFWD 240240
SVRFWD
TXC337-240345-
/O.NEW.KFWD.SV.W.0093.210424T0240Z-210424T0345Z/

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

The National Weather Service in Fort Worth has issued a

* Severe Thunderstorm Warning for...
  Montague County in north central Texas...

* Until 1045 PM CDT.

* At 937 PM CDT, severe thunderstorms were located along a line
  extending from near Oscar to near Bluegrove, moving east at 35 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...
  Bowie, Nocona, St. Jo, Stoneburg and Sunset. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3397 9761 3393 9759 3392 9760 3390 9758
      3391 9748 3369 9749 3343 9781 3344 9798
      3383 9798 3387 9791 3385 9787 3386 9783
      3395 9771 3398 9769
TIME...MOT...LOC 0237Z 266DEG 30KT 3394 9773 3362 9826 

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

30

1 follow-up statement

065 
WWUS54 KFWD 240324
SVSFWD

Severe Weather Statement
National Weather Service Fort Worth TX
1024 PM CDT Fri Apr 23 2021

TXC337-240345-
/O.CON.KFWD.SV.W.0093.000000T0000Z-210424T0345Z/
Montague TX-
1024 PM CDT Fri Apr 23 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM CDT
FOR SOUTHERN MONTAGUE COUNTY...

At 1023 PM CDT, a severe thunderstorm was located near Stoneburg, or
near Bowie, moving east at 30 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...
Bowie, St. Jo, Stoneburg and Sunset. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3364 9798 3371 9797 3375 9749 3369 9749
      3343 9781 3344 9798
TIME...MOT...LOC 0323Z 274DEG 25KT 3362 9789 

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

30

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 7:11 PM CDT	Special Weather Statement	FWD	Ellis	34 min
Apr 23, 8:56 PM CDT	Special Weather Statement	FWD	Fannin	34 min
Apr 23, 9:12 PM CDT	Severe Thunderstorm Warning	FWD	Fannin, Lamar	63 min
Apr 23, 10:41 PM CDT	Special Weather Statement	FWD	Cooke, Grayson, Jack, Montague, Wise	49 min
Apr 23, 11:17 PM CDT	Special Weather Statement	FWD	Grayson	13 min
Apr 23, 11:28 PM CDT	Special Weather Statement	FWD	Collin, Denton, Fannin, Grayson, Wise	32 min
Apr 24, 12:04 AM CDT	Special Weather Statement	FWD	Collin, Dallas, Denton, Hunt, Rockwall, Tarrant	56 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Every 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.