Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 263, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Aug 21, 2021, 4:33 PM CDT for 4 counties in Texas. It was in force for 70 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, 4:33 PM CDT (21:33 UTC)
- Expired
- Aug 21, 2021, 5:43 PM CDT
- In force
- 70 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hansford County, TX, Hutchinson County, TX, Ochiltree County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 116 km from the middle of the area, began a volume at 21:33 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, 9.6 hours before the alert went out and 116 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.
949
WUUS54 KAMA 212133
SVRAMA
TXC195-233-357-393-212300-
/O.NEW.KAMA.SV.W.0263.210821T2133Z-210821T2300Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
433 PM CDT Sat Aug 21 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Northeastern Hutchinson County in the Panhandle of Texas...
Southeastern Hansford County in the Panhandle of Texas...
Northern Roberts County in the Panhandle of Texas...
Ochiltree County in the Panhandle of Texas...
* Until 600 PM CDT.
* At 433 PM CDT, a severe thunderstorm was located 15 miles northwest
of Miami, moving north at 15 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...
Perryton, Spearman, Gruver, Waka and Farnsworth.
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 3574 10091 3617 10153 3646 10128 3648 10075
3593 10054 3591 10054
TIME...MOT...LOC 2133Z 164DEG 11KT 3587 10079
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG3 follow-up statements
659
WWUS54 KAMA 212148
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
448 PM CDT Sat Aug 21 2021
TXC195-233-357-393-212300-
/O.CON.KAMA.SV.W.0263.000000T0000Z-210821T2300Z/
Hutchinson TX-Hansford TX-Roberts TX-Ochiltree TX-
448 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR NORTHEASTERN HUTCHINSON...SOUTHEASTERN HANSFORD...NORTHERN
ROBERTS AND OCHILTREE COUNTIES...
At 448 PM CDT, a severe thunderstorm was located 21 miles northwest
of Miami, moving northwest at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible. Hail
damage to vehicles is expected.
Locations impacted include...
Perryton, Spearman, Gruver, Waka and Farnsworth.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3574 10091 3617 10153 3646 10128 3648 10075
3593 10054 3591 10054
TIME...MOT...LOC 2148Z 151DEG 17KT 3595 10085
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG767
WWUS54 KAMA 212156
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
456 PM CDT Sat Aug 21 2021
TXC195-233-357-393-212300-
/O.CON.KAMA.SV.W.0263.000000T0000Z-210821T2300Z/
Hutchinson TX-Hansford TX-Roberts TX-Ochiltree TX-
456 PM CDT Sat Aug 21 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM CDT
FOR NORTHEASTERN HUTCHINSON...SOUTHEASTERN HANSFORD...NORTHERN
ROBERTS AND OCHILTREE COUNTIES...
At 456 PM CDT, a severe thunderstorm was located 7 miles southwest of
Spearman, moving north 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...
Perryton, Spearman, Gruver, Waka and Farnsworth.
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 3574 10091 3617 10153 3646 10128 3648 10075
3593 10054 3591 10054
TIME...MOT...LOC 2156Z 176DEG 19KT 3614 10132
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
LG526
WWUS54 KAMA 212243
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
543 PM CDT Sat Aug 21 2021
TXC195-233-357-393-212252-
/O.CAN.KAMA.SV.W.0263.000000T0000Z-210821T2300Z/
Hutchinson TX-Hansford TX-Roberts TX-Ochiltree TX-
543 PM CDT Sat Aug 21 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HUTCHINSON...
SOUTHEASTERN HANSFORD...NORTHERN ROBERTS AND OCHILTREE COUNTIES IS
CANCELLED...
The storm which prompted the warning has moved out of the area.
Therefore, the warning has been cancelled. However gusty winds are
still possible with this thunderstorm.
Remember, a Severe Thunderstorm Warning still remains in effect for
Norhtern Hansford and Ochiltree counties until 645 pm.
LAT...LON 3574 10091 3617 10153 3646 10128 3648 10075
3593 10054 3591 10054
TIME...MOT...LOC 2238Z 164DEG 11KT 3628 10137
$$
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, 2:57 PM CDT | Severe Thunderstorm Warning | AMA | Hemphill, Lipscomb, Ochiltree, Roberts | 93 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, 4:44 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.