Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 262, NWS Norman, OK

May 27, 2021Wilbarger County, Texas

NWS Norman, OK issued this severe thunderstorm warning at May 27, 2021, 9:06 PM CDT for Wilbarger County, Texas. It was in force for 39 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: May 27, 2021, 9:06 PM CDT (02:06 UTC)
Expired: May 27, 2021, 9:45 PM CDT
In force: 39 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

County Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 27 km from the middle of the area, began a volume at 02:06 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
May 27, 3:39 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Fort Worth, TX (KFWD), launched 00:00Z, 2.1 hours before the alert went out and 231 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: 1480 J/kg
Mixed-layer CIN: -150 J/kg
Mixed-layer LCL: 1331 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 124 m²/s²
0-3 km storm-relative helicity: 203 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

As transmitted.

674 
WUUS54 KOUN 280206
SVROUN
TXC487-280245-
/O.NEW.KOUN.SV.W.0262.210528T0206Z-210528T0245Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
906 PM CDT Thu May 27 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Central Wilbarger County in northern Texas...

* Until 945 PM CDT.

* At 906 PM CDT, a severe thunderstorm was located 3 miles 
  northwest of Vernon, moving east-southeast at 30 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles. Expect 
           wind damage to roofs, siding, and trees.

* Locations impacted include...
  Vernon, Harrold and Oklaunion. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3429 9939 3423 9919 3421 9919 3421 9915
      3422 9914 3421 9913 3420 9913 3421 9910
      3416 9895 3391 9895 3415 9946
TIME...MOT...LOC 0206Z 292DEG 28KT 3418 9933 

HAIL...1.50IN
WIND...60MPH
 
$$

..speg.

2 follow-up statements

135 
WWUS54 KOUN 280221
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
921 PM CDT Thu May 27 2021

TXC487-280245-
/O.CON.KOUN.SV.W.0262.000000T0000Z-210528T0245Z/
Wilbarger TX-
921 PM CDT Thu May 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR EAST CENTRAL WILBARGER COUNTY...

At 920 PM CDT, a severe thunderstorm was located near Vernon, moving
east at 30 mph.

HAZARD...Golf ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles. Expect wind 
         damage to roofs, siding, and trees.

Locations impacted include...
Vernon, Harrold and Oklaunion. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm is producing large hail. SEEK SHELTER NOW inside a sturdy
structure and stay away from windows.

&&

LAT...LON 3423 9928 3423 9919 3421 9919 3421 9915
      3422 9914 3421 9913 3420 9913 3421 9910
      3416 9895 3391 9895 3413 9935
TIME...MOT...LOC 0220Z 292DEG 25KT 3415 9927 

HAIL...1.75IN
WIND...60MPH
 
$$

Mahale

280 
WWUS54 KOUN 280235
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
935 PM CDT Thu May 27 2021

TXC487-280245-
/O.CON.KOUN.SV.W.0262.000000T0000Z-210528T0245Z/
Wilbarger TX-
935 PM CDT Thu May 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 945 PM CDT
FOR EAST CENTRAL WILBARGER COUNTY...

At 934 PM CDT, a severe thunderstorm was located near Oklaunion,
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...
Vernon, Harrold and Oklaunion. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3423 9928 3423 9919 3421 9919 3421 9915
      3422 9914 3421 9913 3420 9913 3421 9910
      3416 9895 3391 9895 3413 9935
TIME...MOT...LOC 0234Z 285DEG 29KT 3415 9909 

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

Mahale

The office that day

Everything else NWS Norman, OK issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 7:51 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman	39 min
May 27, 8:26 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman, Wilbarger	49 min
May 27, 8:34 PM CDT	Special Weather Statement	OUN	Foard	26 min
May 27, 9:15 PM CDT	Special Weather Statement	OUN	Wilbarger	30 min
May 27, 9:46 PM CDT	Special Weather Statement	OUN	Wilbarger	29 min
May 27, 10:04 PM CDT	Severe Thunderstorm Warning	OUN	Clay, Wichita	41 min
May 27, 10:12 PM CDT	Special Weather Statement	OUN	Wichita	33 min
May 27, 10:34 PM CDT	Severe Thunderstorm Warning	OUN	Clay	41 min
May 27, 10:36 PM CDT	Severe Thunderstorm Warning	OUN	Foard	39 min
May 27, 11:00 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Knox	45 min
May 27, 11:03 PM CDT	Special Weather Statement	OUN	Foard	27 min
May 27, 11:27 PM CDT	Severe Thunderstorm Warning	OUN	Baylor, Foard, Knox	48 min
May 28, 12:09 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Baylor	51 min
May 28, 12:13 AM CDT	Special Weather Statement	OUN	Knox	32 min
May 28, 12:46 AM CDT	Severe Thunderstorm Warning	OUN	Archer, Clay	44 min
May 28, 1:29 AM CDT	Special Weather Statement	OUN	Clay	31 min
May 28, 2:13 AM CDT	Special Weather Statement	OUN	Foard	32 min
May 28, 4:55 AM CDT	Special Weather Statement	OUN	Foard, Hardeman	35 min
May 28, 5:24 AM CDT	Special Weather Statement	OUN	Foard, Hardeman	36 min
May 28, 8:14 AM CDT	Special Weather Statement	OUN	Hardeman	31 min
May 28, 8:14 AM CDT	Special Weather Statement	OUN	Wilbarger	31 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.