Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 259, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 21, 2021, 2:57 PM CDT for 4 counties in Texas. It was in force for 93 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
- Aug 21, 2021, 2:57 PM CDT (19:57 UTC)
- Expired
- Aug 21, 2021, 4:30 PM CDT
- In force
- 93 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hemphill County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 142 km from the middle of the area, began a volume at 19:58 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, 8.0 hours before the alert went out and 141 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.
- Mixed-layer CAPE
- 611 J/kg
- Mixed-layer CIN
- -143 J/kg
- Mixed-layer LCL
- 1642 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
852
WUUS54 KAMA 211957
SVRAMA
TXC211-295-357-393-212130-
/O.NEW.KAMA.SV.W.0259.210821T1957Z-210821T2130Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
257 PM CDT Sat Aug 21 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Southern Lipscomb County in the Panhandle of Texas...
Eastern Roberts County in the Panhandle of Texas...
Hemphill County in the Panhandle of Texas...
Southeastern Ochiltree County in the Panhandle of Texas...
* Until 430 PM CDT.
* At 257 PM CDT, a severe thunderstorm was located 8 miles south of
Canadian, moving north at 10 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...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3565 10008 3562 10055 3562 10065 3563 10065
3611 10071 3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 1957Z 169DEG 9KT 3578 10038
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG7 follow-up statements
675
WWUS54 KAMA 212008
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
308 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212130-
/O.CON.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
308 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN LIPSCOMB...EASTERN ROBERTS...HEMPHILL AND SOUTHEASTERN
OCHILTREE COUNTIES...
At 308 PM CDT, a severe thunderstorm was located 7 miles south of
Canadian, moving north at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible. Hail
damage to vehicles is expected.
Locations impacted include...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3565 10008 3562 10055 3562 10065 3563 10065
3611 10071 3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2008Z 169DEG 9KT 3581 10039
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG981
WWUS54 KAMA 212017
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
317 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212130-
/O.CON.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
317 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN LIPSCOMB...EASTERN ROBERTS...HEMPHILL AND SOUTHEASTERN
OCHILTREE COUNTIES...
At 317 PM CDT, a severe thunderstorm was located 6 miles south of
Canadian, moving north at 5 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible. Hail
damage to vehicles is expected.
Locations impacted include...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3568 10008 3562 10055 3562 10065 3563 10065
3611 10071 3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2017Z 170DEG 6KT 3581 10038
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG738
WWUS54 KAMA 212028
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
328 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212130-
/O.CON.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
328 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN LIPSCOMB...EASTERN ROBERTS...HEMPHILL AND SOUTHEASTERN
OCHILTREE COUNTIES...
At 327 PM CDT, a severe thunderstorm was located 5 miles south of
Canadian, moving north at 10 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible. Hail
damage to vehicles is expected.
Locations impacted include...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3570 10008 3562 10055 3562 10065 3563 10065
3611 10071 3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2027Z 168DEG 8KT 3583 10042
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG235
WWUS54 KAMA 212036
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
336 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212130-
/O.CON.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
336 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN LIPSCOMB...EASTERN ROBERTS...HEMPHILL AND SOUTHEASTERN
OCHILTREE COUNTIES...
At 335 PM CDT, a severe thunderstorm was located 4 miles southwest
of Canadian, moving north at 10 mph. Another severe thunderstorm was
located 5 miles north of Canadian, moving north at 10 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...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3570 10008 3562 10055 3562 10065 3563 10065
3611 10071 3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2035Z 191DEG 10KT 3585 10042
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG173
WWUS54 KAMA 212048
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
348 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212130-
/O.CON.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
348 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN LIPSCOMB...EASTERN ROBERTS...HEMPHILL AND SOUTHEASTERN
OCHILTREE COUNTIES...
At 348 PM CDT, a severe thunderstorm was located 5 miles north of
Lora, or 9 miles north of Miami, moving north at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible. Hail
damage to vehicles is expected.
Locations impacted include...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3573 10010 3562 10055 3562 10065 3563 10065
3611 10071 3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2048Z 166DEG 7KT 3582 10059
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG076
WWUS54 KAMA 212057
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
357 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212130-
/O.CON.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
357 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHERN LIPSCOMB...EASTERN ROBERTS...HEMPHILL AND SOUTHEASTERN
OCHILTREE COUNTIES...
At 357 PM CDT, a severe thunderstorm was located 7 miles northwest of
Lora, or 10 miles north of Miami, moving north at 10 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...
Lipscomb, Canadian, Miami, Higgins, Lora, Glazier and Lake Marvin.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3573 10010 3566 10054 3566 10065 3611 10071
3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2057Z 162DEG 9KT 3584 10061
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG196
WWUS54 KAMA 212122
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
422 PM CDT Sat Aug 21 2021
TXC211-295-357-393-212132-
/O.EXP.KAMA.SV.W.0259.000000T0000Z-210821T2130Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
422 PM CDT Sat Aug 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN LIPSCOMB...EASTERN
ROBERTS...HEMPHILL AND SOUTHEASTERN OCHILTREE COUNTIES WILL EXPIRE AT
430 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However gusty
winds are still possible with this thunderstorm.
Remember, a Severe Thunderstorm Warning still remains in effect for
northern Lipscomb County and northeastern Ochiltree County.
LAT...LON 3573 10010 3566 10054 3566 10065 3611 10071
3627 10034 3619 10000 3593 10000
TIME...MOT...LOC 2122Z 210DEG 12KT 3588 10035
$$
LGThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 21, 2:38 PM CDT | Special Weather Statement | AMA | Hemphill | 67 min |
| Aug 21, 2:43 PM CDT | Special Weather Statement | AMA | Potter | 62 min |
| Aug 21, 3:32 PM CDT | Severe Thunderstorm Warning | AMA | Carson, Hutchinson, Moore, Potter | 88 min |
| Aug 21, 3:42 PM CDT | Areal Flood Advisory | AMA | Hemphill | 3 hr |
| Aug 21, 3:42 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson, Potter, Randall | 69 min |
| Aug 21, 3:54 PM CDT | Areal Flood Advisory | AMA | Potter, Randall | 10 min |
| Aug 21, 4:04 PM CDT | Flash Flood Warning | AMA | Potter, Randall | 90 min |
| Aug 21, 4:15 PM CDT | Severe Thunderstorm Warning | AMA | Lipscomb, Ochiltree | 90 min |
| Aug 21, 4:33 PM CDT | Severe Thunderstorm Warning | AMA | Hansford, Hutchinson, Ochiltree, Roberts | 70 min |
| Aug 21, 4:44 PM CDT | Special Weather Statement | AMA | Sherman | 61 min |
| Aug 21, 5:14 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson, Potter, Randall | 91 min |
| Aug 21, 5:20 PM CDT | Severe Thunderstorm Warning | AMA | Hansford, Ochiltree, Sherman | 85 min |
| Aug 21, 6:18 PM CDT | Areal Flood Advisory | AMA | Armstrong, Randall | 85 min |
| Aug 21, 6:18 PM CDT | Special Weather Statement | AMA | Hemphill | 27 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Every 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.