Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 1, NWS Norman, OK

January 25, 20214 counties in Texas; Tillman County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jan 25, 2021, 12:09 AM CST for 4 counties in Texas; Tillman County, Oklahoma. It was in force for 51 min. 3 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: Jan 25, 2021, 12:09 AM CST (06:09 UTC)
Expired: Jan 25, 2021, 1:00 AM CST
In force: 51 min
Issued by: NWS Norman, OK
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Tillman County, OK, Archer County, TX, Baylor County, TX, Wichita County, TX, Wilbarger County, TX

The radar

The Altus AFB radar (KFDR), 43 km from the middle of the area, began a volume at 06:11 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

Time	Report	Where
Jan 25, 12:30 AM CST	HAIL 1.25	13 Nne Seymour, TX
Jan 25, 12:37 AM CST	HAIL 1	Iowa Park, TX
Jan 25, 12:38 AM CST	HAIL 1	1 Nw Iowa Park, TX

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

The nearest sounding before it

Norman, OK (KOUN), launched 00:00Z, 6.2 hours before the alert went out and 196 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: 612 m above ground
0-6 km bulk shear: 88 kt
0-1 km storm-relative helicity: 395 m²/s²
0-3 km storm-relative helicity: 763 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.4

Open this sounding in Storm Lab

The text

As transmitted.

521 
WUUS54 KOUN 250609
SVROUN
OKC141-TXC009-023-485-487-250700-
/O.NEW.KOUN.SV.W.0001.210125T0609Z-210125T0700Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Norman OK
1209 AM CST Mon Jan 25 2021

The National Weather Service in Norman has issued a

* Severe Thunderstorm Warning for...
  Southeastern Tillman County in southwestern Oklahoma...
  Northwestern Archer County in northern Texas...
  Wichita County in northern Texas...
  Southeastern Wilbarger County in northern Texas...
  Northeastern Baylor County in northern Texas...

* Until 100 AM CST.

* At 1207 AM CST, severe thunderstorms were located along a line
  extending from 5 miles southwest of Grayback to 4 miles northeast
  of Lake Kemp to near Mabelle, moving northeast at 50 mph.

  HAZARD...Quarter size hail and the potential for accumulating, 
           small hail. 

  SOURCE...Radar indicated.

  IMPACT...Damage to vehicles is expected.

* Locations impacted include...
  Iowa Park, Electra, Holliday, Grandfield, Lake Diversion, Dundee,
  Harrold, Lake Kemp, Mabelle, Mankins, Grayback, Pleasant Valley and
  Haynesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3432 9868 3424 9861 3383 9862 3357 9922
      3371 9924 3389 9939
TIME...MOT...LOC 0607Z 235DEG 42KT 3393 9925 3381 9917 3367 9918 

HAIL...1.00IN
WIND...<50MPH
 
$$

Mahale

4 follow-up statements

658 
WWUS54 KOUN 250617
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
1217 AM CST Mon Jan 25 2021

OKC141-TXC009-023-485-487-250700-
/O.CON.KOUN.SV.W.0001.000000T0000Z-210125T0700Z/
Tillman OK-Archer TX-Wichita TX-Wilbarger TX-Baylor TX-
1217 AM CST Mon Jan 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CST
FOR SOUTHEASTERN TILLMAN...NORTHWESTERN ARCHER...WICHITA...
SOUTHEASTERN WILBARGER AND NORTHEASTERN BAYLOR COUNTIES...

At 1216 AM CST, severe thunderstorms were located along a line
extending from 4 miles south of Grayback to 5 miles west of Lake
Diversion to 5 miles east of Mabelle, moving northeast at 70 mph.

HAZARD...Ping pong ball size hail and the potential for 
         accumulating, small hail. 

SOURCE...Radar indicated.

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

Locations impacted include...
Iowa Park, Electra, Holliday, Grandfield, Lake Diversion, Dundee,
Mankins, northeastern Lake Kemp, Pleasant Valley and Haynesville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3369 9894 3363 9909 3377 9916 3388 9928
      3432 9868 3424 9861 3383 9862
TIME...MOT...LOC 0616Z 246DEG 59KT 3393 9915 3381 9906 3368 9904 

HAIL...1.50IN
WIND...<50MPH
 
$$

Mahale

137 
WWUS54 KOUN 250624
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
1224 AM CST Mon Jan 25 2021

TXC023-250633-
/O.CAN.KOUN.SV.W.0001.000000T0000Z-210125T0700Z/
Baylor TX-
1224 AM CST Mon Jan 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN BAYLOR COUNTY IS
CANCELLED...

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

LAT...LON 3381 9895 3383 9895 3383 9897 3391 9908
      3432 9868 3424 9861 3383 9862 3370 9893
TIME...MOT...LOC 0623Z 240DEG 58KT 3395 9897 3385 9890 3372 9889 

$$

OKC141-TXC009-485-487-250700-
/O.CON.KOUN.SV.W.0001.000000T0000Z-210125T0700Z/
Tillman OK-Archer TX-Wichita TX-Wilbarger TX-
1224 AM CST Mon Jan 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CST
FOR SOUTHEASTERN TILLMAN...NORTHWESTERN ARCHER...WICHITA AND
SOUTHEASTERN WILBARGER COUNTIES...

At 1223 AM CST, severe thunderstorms were located along a line
extending from 6 miles southwest of Electra to 5 miles northeast of
Lake Diversion to near Dundee, moving northeast at 65 mph.

HAZARD...Golf ball size hail and the potential for accumulating, 
         small hail. 

SOURCE...Radar indicated.

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

Locations impacted include...
Iowa Park, Electra, Holliday, Grandfield, Dundee, Mankins,
northeastern Lake Diversion and Pleasant Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3381 9895 3383 9895 3383 9897 3391 9908
      3432 9868 3424 9861 3383 9862 3370 9893
TIME...MOT...LOC 0623Z 240DEG 58KT 3395 9897 3385 9890 3372 9889 

HAIL...1.75IN
WIND...<50MPH
 
$$

Mahale

951 
WWUS54 KOUN 250628
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
1228 AM CST Mon Jan 25 2021

OKC141-TXC009-485-487-250700-
/O.CON.KOUN.SV.W.0001.000000T0000Z-210125T0700Z/
Tillman OK-Archer TX-Wichita TX-Wilbarger TX-
1228 AM CST Mon Jan 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CST
FOR SOUTHEASTERN TILLMAN...NORTH CENTRAL ARCHER...WICHITA AND EASTERN
WILBARGER COUNTIES...

At 1227 AM CST, severe thunderstorms were located along a line
extending from near Electra to 9 miles west of Iowa Park to near
Mankins, moving northeast at 65 mph.

HAZARD...Two inch hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Iowa Park, Electra, Holliday, Grandfield, Mankins and Pleasant
Valley.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

These storms are producing large hail. SEEK SHELTER NOW inside a
sturdy structure and stay away from windows.

&&

LAT...LON 3376 9886 3384 9893 3397 9902 3432 9868
      3424 9861 3385 9862
TIME...MOT...LOC 0627Z 233DEG 55KT 3402 9890 3392 9883 3379 9882 

HAIL...2.00IN
WIND...<50MPH
 
$$

Mahale

084 
WWUS54 KOUN 250656
SVSOUN

Severe Weather Statement
National Weather Service Norman OK
1256 AM CST Mon Jan 25 2021

OKC141-TXC009-485-487-250705-
/O.EXP.KOUN.SV.W.0001.000000T0000Z-210125T0700Z/
Tillman OK-Archer TX-Wichita TX-Wilbarger TX-
1256 AM CST Mon Jan 25 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TILLMAN...NORTH
CENTRAL ARCHER...WICHITA AND EASTERN WILBARGER COUNTIES WILL EXPIRE
AT 100 AM CST...
    
The storms which prompted the warning have moved out of the area.
Therefore, the warning will be allowed to expire.

LAT...LON 3376 9886 3384 9893 3397 9902 3432 9868
      3424 9861 3385 9862
TIME...MOT...LOC 0655Z 235DEG 42KT 3420 9860 3410 9853 3397 9852 

$$

Mahale

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 24, 11:13 PM CST	Special Weather Statement	OUN	Knox	32 min
Jan 24, 11:38 PM CST	Special Weather Statement	OUN	Knox	37 min
Jan 24, 11:55 PM CST	Special Weather Statement	OUN	Baylor	35 min
Jan 25, 12:31 AM CST	Severe Thunderstorm Warning	OUN	Wichita	44 min
Jan 25, 12:38 AM CST	Severe Thunderstorm Warning	OUN	Archer, Clay, Wichita	37 min
Jan 25, 1:01 AM CST	Severe Thunderstorm Warning	OUN	Clay	44 min
Jan 25, 1:38 AM CST	Special Weather Statement	OUN	Wilbarger	37 min
Jan 24, 10:10 PM CST	Special Weather Statement	OUN	Washita	35 min
Jan 24, 10:28 PM CST	Special Weather Statement	OUN	Blaine	32 min
Jan 24, 10:56 PM CST	Special Weather Statement	OUN	Blaine	34 min
Jan 24, 11:41 PM CST	Special Weather Statement	OUN	Washita	34 min
Jan 25, 1:43 AM CST	Special Weather Statement	OUN	Carter, Garvin, Murray	32 min
Jan 25, 2:26 AM CST	Special Weather Statement	OUN	Hughes, Murray, Pontotoc, Seminole	49 min
Jan 25, 3:39 AM CST	Special Weather Statement	OUN	Coal, Johnston, Marshall	51 min
Jan 25, 4:51 AM CST	Special Weather Statement	OUN	Atoka, Bryan	39 min
Jan 25, 4:58 AM CST	Severe Thunderstorm Warning	OUN	Atoka, Bryan	47 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Severe Thunderstorm Warnings in Oklahoma, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.