Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 199, NWS Amarillo, TX

July 5, 20214 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 5, 2021, 1:31 AM CDT for 4 counties in Texas. It was in force for 74 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: Jul 5, 2021, 1:31 AM CDT (06:31 UTC)
Expired: Jul 5, 2021, 2:45 AM CDT
In force: 74 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.5 in
Wind: 70.0 mph

Counties Armstrong County, TX, Carson County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 10 km from the middle of the area, began a volume at 06:32 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	Remark
Jul 5, 1:32 AM CDT	TSTM WND DMG	2 Ese Washburn, TX	ROOF TAKEN OFF A FRONT PORCH. HEAVY DUTY SWING SET BLOWN OVER. SEVERAL TREE LIMBS DOWN.
Jul 5, 2:22 AM CDT	TSTM WND GST 64	4 Nnw Lake Tanglewood, TX	MESONET STATION 75 AMARILLO 7SSE.

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

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.5 hours before the alert went out and 9 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: 2304 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1243 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 1.2
Supercell composite: 7.9

Open this sounding in Storm Lab

The text

As transmitted.

196 
WUUS54 KAMA 050631
SVRAMA
TXC011-065-375-381-050745-
/O.NEW.KAMA.SV.W.0199.210705T0631Z-210705T0745Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
131 AM CDT Mon Jul 5 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northwestern Armstrong County in the Panhandle of Texas...
  Northeastern Randall County in the Panhandle of Texas...
  Southwestern Carson County in the Panhandle of Texas...
  Southeastern Potter County in the Panhandle of Texas...

* Until 245 AM CDT.

* At 131 AM CDT, a severe thunderstorm was located over Washburn, or
  13 miles northwest of Claude, moving west at 20 mph.

  HAZARD...70 mph wind gusts and ping pong ball size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect some tree damage. Damage is likely to mobile 
           homes, roofs, and outbuildings. People and animals 
           outdoors will be injured. Expect hail damage to roofs, 
           siding, windows, and vehicles.

* Locations impacted include...
  Amarillo, Canyon, Claude, Lake Tanglewood, Mescalero Park, Washburn
  and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.

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

&&

LAT...LON 3528 10142 3513 10128 3485 10198 3532 10204
TIME...MOT...LOC 0631Z 082DEG 18KT 3519 10158 

HAIL...1.50IN
WIND...70MPH
 
$$

DGW

5 follow-up statements

575 
WWUS54 KAMA 050641
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
141 AM CDT Mon Jul 5 2021

TXC011-065-375-381-050745-
/O.CON.KAMA.SV.W.0199.000000T0000Z-210705T0745Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-
141 AM CDT Mon Jul 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHEASTERN RANDALL...SOUTHWESTERN
CARSON AND SOUTHEASTERN POTTER COUNTIES...

At 141 AM CDT, a severe thunderstorm was located near Washburn, or 11
miles east of Amarillo, moving west at 20 mph.

This is a very dangerous storm.

HAZARD...80 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. Tree 
         damage and power outages are likely. People and animals 
         outdoors will be injured. Expect hail damage to roofs, 
         siding, windows, and vehicles.

Locations impacted include...
Amarillo, Canyon, Claude, Lake Tanglewood, Mescalero Park, Washburn
and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

This is an EXTREMELY DANGEROUS SITUATION with tornado like wind
speeds expected. Mobile homes and high profile vehicles are
especially susceptible to winds of this magnitude and may be
overturned. For your protection move to an interior room on the
lowest floor of a building. This storm has the potential to cause
serious injury and significant property damage.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3528 10142 3513 10128 3485 10198 3532 10204
TIME...MOT...LOC 0641Z 082DEG 18KT 3518 10164 

HAIL...1.50IN
WIND...80MPH
 
$$

DGW

970 
WWUS54 KAMA 050658
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
158 AM CDT Mon Jul 5 2021

TXC011-065-375-381-050745-
/O.CON.KAMA.SV.W.0199.000000T0000Z-210705T0745Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-
158 AM CDT Mon Jul 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHEASTERN RANDALL...SOUTHWESTERN
CARSON AND SOUTHEASTERN POTTER COUNTIES...

At 158 AM CDT, a severe thunderstorm was located 6 miles east of
Amarillo, moving west at 20 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. People and animals outdoors will 
         be injured. Expect hail damage to roofs, siding, windows, 
         and vehicles.

Locations impacted include...
Amarillo, Canyon, Claude, Lake Tanglewood, Mescalero Park, Washburn
and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3528 10142 3513 10128 3485 10198 3532 10204
TIME...MOT...LOC 0658Z 082DEG 18KT 3517 10175 

HAIL...1.50IN
WIND...70MPH
 
$$

DGW

283 
WWUS54 KAMA 050715
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
215 AM CDT Mon Jul 5 2021

TXC011-065-375-381-050745-
/O.CON.KAMA.SV.W.0199.000000T0000Z-210705T0745Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-
215 AM CDT Mon Jul 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHEASTERN RANDALL...SOUTHWESTERN
CARSON AND SOUTHEASTERN POTTER COUNTIES...

At 215 AM CDT, a severe thunderstorm was located over Amarillo,
moving west at 20 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to roofs, siding, and trees is possible. Hail 
         damage to vehicles is expected.

Locations impacted include...
Amarillo, Canyon, Lake Tanglewood, Washburn, Mescalero Park and
Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3523 10157 3507 10144 3485 10198 3532 10204
TIME...MOT...LOC 0715Z 082DEG 18KT 3516 10185 

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

DGW

875 
WWUS54 KAMA 050726
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
226 AM CDT Mon Jul 5 2021

TXC011-065-050736-
/O.CAN.KAMA.SV.W.0199.000000T0000Z-210705T0745Z/
Armstrong TX-Carson TX-
226 AM CDT Mon Jul 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ARMSTRONG AND
SOUTHWESTERN CARSON COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

LAT...LON 3485 10198 3532 10204 3523 10162 3517 10162
      3501 10163
TIME...MOT...LOC 0726Z 082DEG 18KT 3515 10192 

$$

TXC375-381-050745-
/O.CON.KAMA.SV.W.0199.000000T0000Z-210705T0745Z/
Randall TX-Potter TX-
226 AM CDT Mon Jul 5 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 AM CDT
FOR NORTHEASTERN RANDALL AND SOUTHEASTERN POTTER COUNTIES...

At 226 AM CDT, a severe thunderstorm was located 5 miles southwest of
Amarillo, moving west at 20 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. People and animals outdoors will 
         be injured. Expect hail damage to roofs, siding, windows, 
         and vehicles.

Locations impacted include...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park and Timbercreek
Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. People outside
should move to a shelter, inside a strong building and away from
windows.

Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.

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

&&

LAT...LON 3485 10198 3532 10204 3523 10162 3517 10162
      3501 10163
TIME...MOT...LOC 0726Z 082DEG 18KT 3515 10192 

HAIL...1.50IN
WIND...70MPH
 
$$

DGW

252 
WWUS54 KAMA 050743
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
243 AM CDT Mon Jul 5 2021

TXC375-381-050753-
/O.EXP.KAMA.SV.W.0199.000000T0000Z-210705T0745Z/
Randall TX-Potter TX-
243 AM CDT Mon Jul 5 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RANDALL AND
SOUTHEASTERN POTTER COUNTIES WILL EXPIRE AT 245 AM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 3485 10198 3532 10204 3523 10162 3517 10162
      3501 10163
TIME...MOT...LOC 0743Z 082DEG 18KT 3514 10198 

$$

DGW

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 4, 7:06 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	84 min
Jul 4, 7:31 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	89 min
Jul 4, 7:42 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hansford, Sherman	93 min
Jul 4, 7:43 PM CDT	Areal Flood Advisory	AMA	Deaf Smith, Oldham	90 min
Jul 4, 7:52 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	83 min
Jul 4, 9:00 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	50 min
Jul 4, 9:00 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Sherman	60 min
Jul 4, 9:52 PM CDT	Areal Flood Advisory	AMA	Dallam, Hartley	53 min
Jul 4, 10:28 PM CDT	Special Weather Statement	AMA	Oldham	62 min
Jul 4, 10:40 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	65 min
Jul 4, 11:05 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	55 min
Jul 4, 11:28 PM CDT	Special Weather Statement	AMA	Deaf Smith	47 min
Jul 4, 11:36 PM CDT	Special Weather Statement	AMA	Gray	24 min
Jul 4, 11:39 PM CDT	Special Weather Statement	AMA	Randall	36 min
Jul 5, 12:01 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray	59 min
Jul 5, 12:35 AM CDT	Special Weather Statement	AMA	Gray	25 min
Jul 5, 12:59 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson	61 min
Jul 5, 2:34 AM CDT	Flash Flood Warning	AMA	Randall	112 min
Jul 5, 2:43 AM CDT	Special Weather Statement	AMA	Randall	47 min
Jul 5, 2:57 AM CDT	Areal Flood Advisory	AMA	Donley	3 hr
Jul 5, 6:38 AM CDT	Areal Flood Advisory	AMA	Collingsworth, Wheeler	3 hr

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.