Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 196, NWS Norman, OK

May 16, 2021Foard County, Hardeman County, Texas

NWS Norman, OK issued this severe thunderstorm warning at May 16, 2021, 6:48 PM CDT for Foard County, Hardeman County, Texas. It was in force for 42 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 16, 2021, 6:48 PM CDT (23:48 UTC)
Expired: May 16, 2021, 7:30 PM CDT
In force: 42 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.75 in
Wind: 60.0 mph

Counties Foard County, TX, Hardeman County, TX

The radar

The Altus AFB radar (KFDR), 85 km from the middle of the area, began a volume at 23:52 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 nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.8 hours before the alert went out and 209 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1470 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -57 m²/s²
0-3 km storm-relative helicity: -16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

071 
WUUS54 KOUN 162348
SVROUN
TXC155-197-170030-
/O.NEW.KOUN.SV.W.0196.210516T2348Z-210517T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
648 PM CDT Sun May 16 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Central Foard County in northern Texas...
  Southwestern Hardeman County in northern Texas...

* Until 730 PM CDT.

* At 648 PM CDT, a severe thunderstorm was located 9 miles southwest
  of Quanah, moving southeast at 15 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...
  Crowell, Margaret and Copper Breaks State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3417 10002 3430 9984 3409 9953 3389 9986
TIME...MOT...LOC 2348Z 318DEG 13KT 3419 9986 

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

11

1 follow-up statement

923 
WWUS54 KOUN 170014
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
714 PM CDT Sun May 16 2021

TXC155-197-170030-
/O.CON.KOUN.SV.W.0196.000000T0000Z-210517T0030Z/
Foard TX-Hardeman TX-
714 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR CENTRAL FOARD AND SOUTHWESTERN HARDEMAN COUNTIES...

At 712 PM CDT, a severe thunderstorm was located 10 miles northwest 
of Crowell, moving southeast at 15 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...
Crowell, Margaret and Copper Breaks State Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3413 10000 3425 9981 3409 9953 3389 9986
TIME...MOT...LOC 0012Z 336DEG 12KT 3411 9984 

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

11

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 3:36 AM CDT	Flood Watch	OUN	Archer, Baylor, Clay, Foard, Hardeman, Knox and 2 more	3 days
May 16, 5:12 PM CDT	Special Weather Statement	OUN	Hardeman	33 min
May 16, 5:22 PM CDT	Severe Thunderstorm Warning	OUN	Clay	38 min
May 16, 5:26 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman, Wilbarger	49 min
May 16, 5:37 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman	53 min
May 16, 5:53 PM CDT	Severe Thunderstorm Warning	OUN	Foard, Hardeman, Wilbarger	42 min
May 16, 5:57 PM CDT	Severe Thunderstorm Warning	OUN	Clay	78 min
May 16, 6:13 PM CDT	Severe Thunderstorm Warning	OUN	Hardeman	47 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.