Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 4, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Mar 12, 2021, 9:11 PM CST for 5 counties in Texas. It was in force for 79 min. 1 report 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
- Mar 12, 2021, 9:11 PM CST (03:11 UTC)
- Expired
- Mar 12, 2021, 10:30 PM CST
- In force
- 79 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Carson County, TX, Gray County, TX, Hutchinson County, TX, Potter County, TX, Roberts County, TX
The radar
The Amarillo radar (KAMA), 33 km from the middle of the area, began a volume at 03:11 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 | Remark |
|---|---|---|---|
| Mar 12, 10:11 PM CST | HAIL 1 | Pampa, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 12, 8:38 PM CST | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 3.2 hours before the alert went out and 32 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 566 m above ground
- 0-6 km bulk shear
- 92 kt
- 0-1 km storm-relative helicity
- 384 m²/s²
- 0-3 km storm-relative helicity
- 512 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
411
WUUS54 KAMA 130311
SVRAMA
TXC065-179-233-375-393-130430-
/O.NEW.KAMA.SV.W.0004.210313T0311Z-210313T0430Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
911 PM CST Fri Mar 12 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Carson County in the Panhandle of Texas...
Southeastern Hutchinson County in the Panhandle of Texas...
Northwestern Gray County in the Panhandle of Texas...
Northeastern Potter County in the Panhandle of Texas...
Southwestern Roberts County in the Panhandle of Texas...
* Until 1030 PM CST.
* At 910 PM CST, a severe thunderstorm was located 14 miles south of
Fritch, or 17 miles west of Panhandle, moving east at 45 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...
Pampa, Borger, Panhandle, Fritch, White Deer, Skellytown, Kingsmill
and Pantex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3532 10182 3554 10185 3578 10101 3531 10087
TIME...MOT...LOC 0310Z 258DEG 39KT 3544 10167
HAIL...1.00IN
WIND...60MPH
$$
Guerrero4 follow-up statements
722
WWUS54 KAMA 130327
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
927 PM CST Fri Mar 12 2021
TXC375-130337-
/O.CAN.KAMA.SV.W.0004.000000T0000Z-210313T0430Z/
Potter TX-
927 PM CST Fri Mar 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POTTER COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 AM CST for
the Panhandle of Texas.
LAT...LON 3532 10162 3559 10162 3578 10101 3531 10087
TIME...MOT...LOC 0327Z 258DEG 39KT 3548 10145
$$
TXC065-179-233-393-130430-
/O.CON.KAMA.SV.W.0004.000000T0000Z-210313T0430Z/
Carson TX-Hutchinson TX-Gray TX-Roberts TX-
927 PM CST Fri Mar 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CST
FOR CARSON...SOUTHEASTERN HUTCHINSON...NORTHWESTERN GRAY AND
SOUTHWESTERN ROBERTS COUNTIES...
At 927 PM CST, a severe thunderstorm was located 9 miles north of
Panhandle, moving east at 45 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...
Pampa, Borger, Panhandle, White Deer, Skellytown, Kingsmill and
Pantex.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3532 10162 3559 10162 3578 10101 3531 10087
TIME...MOT...LOC 0327Z 258DEG 39KT 3548 10145
HAIL...1.00IN
WIND...60MPH
$$
Guerrero689
WWUS54 KAMA 130337
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
937 PM CST Fri Mar 12 2021
TXC233-130347-
/O.CAN.KAMA.SV.W.0004.000000T0000Z-210313T0430Z/
Hutchinson TX-
937 PM CST Fri Mar 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HUTCHINSON COUNTY
IS CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Severe Thunderstorm Watch remains in effect until 200 AM CST for
the Panhandle of Texas.
LAT...LON 3538 10150 3559 10154 3563 10126 3563 10109
3565 10108 3566 10098 3536 10088
TIME...MOT...LOC 0337Z 258DEG 39KT 3550 10132
$$
TXC065-179-393-130430-
/O.CON.KAMA.SV.W.0004.000000T0000Z-210313T0430Z/
Carson TX-Gray TX-Roberts TX-
937 PM CST Fri Mar 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CST
FOR NORTHERN CARSON...NORTHWESTERN GRAY AND SOUTHWESTERN ROBERTS
COUNTIES...
At 937 PM CST, a severe thunderstorm was located 9 miles northwest of
White Deer, or 11 miles north of Panhandle, moving east at 45 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...
Pampa, White Deer, Skellytown and Kingsmill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3538 10150 3559 10154 3563 10126 3563 10109
3565 10108 3566 10098 3536 10088
TIME...MOT...LOC 0337Z 258DEG 39KT 3550 10132
HAIL...1.25IN
WIND...60MPH
$$
Guerrero701
WWUS54 KAMA 130348
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
948 PM CST Fri Mar 12 2021
TXC065-179-393-130430-
/O.CON.KAMA.SV.W.0004.000000T0000Z-210313T0430Z/
Carson TX-Gray TX-Roberts TX-
948 PM CST Fri Mar 12 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1030 PM CST
FOR NORTHEASTERN CARSON...NORTHWESTERN GRAY AND SOUTHWESTERN ROBERTS
COUNTIES...
At 948 PM CST, a severe thunderstorm was located near Skellytown, or
11 miles west of Pampa, moving east at 45 mph.
HAZARD...60 mph wind gusts and half dollar size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible. Hail
damage to vehicles is expected.
Locations impacted include...
Pampa, White Deer, Skellytown and Kingsmill.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3541 10133 3559 10136 3563 10126 3563 10109
3565 10108 3566 10098 3540 10090
TIME...MOT...LOC 0348Z 258DEG 39KT 3553 10117
HAIL...1.25IN
WIND...60MPH
$$
Guerrero150
WWUS54 KAMA 130424
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
1024 PM CST Fri Mar 12 2021
TXC065-179-393-130434-
/O.EXP.KAMA.SV.W.0004.000000T0000Z-210313T0430Z/
Carson TX-Gray TX-Roberts TX-
1024 PM CST Fri Mar 12 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CARSON...
NORTHWESTERN GRAY AND SOUTHWESTERN ROBERTS COUNTIES WILL EXPIRE AT
1030 PM CST...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 200 AM CST for
the Panhandle of Texas.
LAT...LON 3541 10133 3559 10136 3563 10126 3563 10109
3565 10108 3566 10098 3540 10090
TIME...MOT...LOC 0424Z 258DEG 39KT 3561 10071
$$
GuerreroThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 12, 6:11 PM CST | Severe Thunderstorm Warning | AMA | Deaf Smith, Oldham | 36 min |
| Mar 12, 6:24 PM CST | Special Weather Statement | AMA | Deaf Smith | 51 min |
| Mar 12, 7:02 PM CST | Dense Fog Advisory | AMA | Carson, Dallam, Gray, Hansford, Hartley, Hemphill and 9 more | 16 hr |
| Mar 12, 7:11 PM CST | Special Weather Statement | AMA | Moore | 34 min |
| Mar 12, 7:12 PM CST | Special Weather Statement | AMA | Oldham | 48 min |
| Mar 12, 7:39 PM CST | Severe Thunderstorm Warning | AMA | Carson, Hutchinson, Moore, Potter | 66 min |
| Mar 12, 7:57 PM CST | Special Weather Statement | AMA | Oldham | 48 min |
| Mar 12, 7:58 PM CST | Special Weather Statement | AMA | Potter | 47 min |
| Mar 12, 8:20 PM CST | Severe Thunderstorm Warning | AMA | Carson, Gray, Hutchinson, Roberts | 55 min |
| Mar 12, 8:39 PM CST | Special Weather Statement | AMA | Potter | 36 min |
| Mar 12, 9:14 PM CST | Severe Thunderstorm Warning | AMA | Hemphill, Lipscomb, Roberts | 19 min |
| Mar 12, 10:09 PM CST | Severe Thunderstorm Warning | AMA | Gray, Hemphill, Roberts, Wheeler | 29 min |
| Mar 13, 7:41 AM CST | Special Weather Statement | AMA | Oldham | 34 min |
| Mar 13, 7:50 AM CST | Special Weather Statement | AMA | Moore | 25 min |
| Mar 13, 7:54 AM CST | Severe Thunderstorm Warning | AMA | Hartley, Moore, Sherman | 31 min |
| Mar 13, 8:26 AM CST | Special Weather Statement | AMA | Sherman | 34 min |
| Mar 13, 8:31 AM CST | Severe Thunderstorm Warning | AMA | Moore | 33 min |
| Mar 13, 1:18 PM CST | Special Weather Statement | AMA | Oldham | 27 min |
| Mar 13, 1:45 PM CST | Special Weather Statement | AMA | Hartley | 30 min |
| Mar 13, 1:54 PM CST | Severe Thunderstorm Warning | AMA | Deaf Smith, Hartley, Oldham | 51 min |
| Mar 13, 2:24 PM CST | Severe Thunderstorm Warning | AMA | Deaf Smith, Oldham | 66 min |
| Mar 13, 2:42 PM CST | Tornado Warning | AMA | Dallam, Hartley, Moore | 33 min |
| Mar 13, 3:12 PM CST | Severe Thunderstorm Warning | AMA | Armstrong, Randall | 63 min |
| Mar 13, 3:14 PM CST | Special Weather Statement | AMA | Sherman | 31 min |
| Mar 13, 3:21 PM CST | Tornado Warning | AMA | Randall | 39 min |
| Mar 13, 3:30 PM CST | Severe Thunderstorm Warning | AMA | Hartley, Moore, Oldham, Potter | 60 min |
| Mar 13, 3:34 PM CST | Tornado Warning | AMA | Sherman | 26 min |
| Mar 13, 3:34 PM CST | Tornado Warning | AMA | Moore | 26 min |
| Mar 13, 3:50 PM CST | Tornado Warning | AMA | Armstrong, Randall | 40 min |
| Mar 13, 4:00 PM CST | Tornado Warning | AMA | Armstrong, Randall | 45 min |
| Mar 13, 4:21 PM CST | Tornado Warning | AMA | Armstrong, Carson | 39 min |
| Mar 13, 4:30 PM CST | Severe Thunderstorm Warning | AMA | Hansford, Hutchinson, Moore, Sherman | 60 min |
| Mar 13, 4:42 PM CST | Tornado Warning | AMA | Armstrong, Carson, Donley, Gray | 48 min |
| Mar 13, 4:52 PM CST | Tornado Warning | AMA | Carson, Gray | 38 min |
| Mar 13, 5:14 PM CST | Tornado Warning | AMA | Armstrong, Donley | 46 min |
| Mar 13, 5:29 PM CST | Special Weather Statement | AMA | Gray | 31 min |
| Mar 13, 5:30 PM CST | Special Weather Statement | AMA | Carson | 30 min |
| Mar 13, 5:43 PM CST | Tornado Warning | AMA | Donley | 47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.