Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 7, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Mar 13, 2021, 7:54 AM CST for Hartley County, Moore County, Sherman County, Texas. It was in force for 31 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
- Mar 13, 2021, 7:54 AM CST (13:54 UTC)
- Expired
- Mar 13, 2021, 8:25 AM CST
- In force
- 31 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Hartley County, TX, Moore County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 94 km from the middle of the area, began a volume at 13:56 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, 1.9 hours before the alert went out and 95 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
- 188 J/kg
- Mixed-layer CIN
- -140 J/kg
- Mixed-layer LCL
- 540 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 162 m²/s²
- 0-3 km storm-relative helicity
- 216 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.9
The text
As transmitted.
238
WUUS54 KAMA 131354
SVRAMA
TXC205-341-421-131445-
/O.NEW.KAMA.SV.W.0007.210313T1354Z-210313T1445Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
754 AM CST Sat Mar 13 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Southern Sherman County in the Panhandle of Texas...
Northwestern Moore County in the Panhandle of Texas...
Northeastern Hartley County in the Panhandle of Texas...
* Until 845 AM CST.
* At 753 AM CST, a severe thunderstorm was located 8 miles west of
Dumas, moving northeast at 50 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...
Dumas, Cactus and Sunray.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3605 10225 3606 10216 3624 10216 3616 10165
3573 10199 3581 10232
TIME...MOT...LOC 1353Z 204DEG 43KT 3586 10211
HAIL...1.00IN
WIND...60MPH
$$
LFM3 follow-up statements
138
WWUS54 KAMA 131402
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
802 AM CST Sat Mar 13 2021
TXC205-131412-
/O.CAN.KAMA.SV.W.0007.000000T0000Z-210313T1445Z/
Hartley TX-
802 AM CST Sat Mar 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HARTLEY COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3624 10216 3616 10165 3583 10191 3585 10216
TIME...MOT...LOC 1402Z 204DEG 43KT 3596 10205
$$
TXC341-421-131445-
/O.CON.KAMA.SV.W.0007.000000T0000Z-210313T1445Z/
Sherman TX-Moore TX-
802 AM CST Sat Mar 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CST
FOR SOUTHERN SHERMAN AND NORTHWESTERN MOORE COUNTIES...
At 802 AM CST, a severe thunderstorm was located 6 miles southwest of
Cactus, or 8 miles northwest of Dumas, moving northeast at 50 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...
Dumas, Cactus and Sunray.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3624 10216 3616 10165 3583 10191 3585 10216
TIME...MOT...LOC 1402Z 204DEG 43KT 3596 10205
HAIL...1.00IN
WIND...60MPH
$$
LFM609
WWUS54 KAMA 131419
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
819 AM CST Sat Mar 13 2021
TXC341-131429-
/O.CAN.KAMA.SV.W.0007.000000T0000Z-210313T1445Z/
Moore TX-
819 AM CST Sat Mar 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN MOORE COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
LAT...LON 3622 10204 3616 10165 3605 10173 3606 10209
TIME...MOT...LOC 1419Z 209DEG 43KT 3613 10187
$$
TXC421-131445-
/O.CON.KAMA.SV.W.0007.000000T0000Z-210313T1445Z/
Sherman TX-
819 AM CST Sat Mar 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 AM CST
FOR SOUTHERN SHERMAN COUNTY...
At 819 AM CST, a severe thunderstorm was located 8 miles north of
Sunray, or 18 miles southeast of Stratford, moving northeast at 50
mph.
HAZARD...Quarter size hail.
SOURCE...Radar indicated.
IMPACT...Damage to vehicles is expected.
This severe thunderstorm will remain over mainly rural areas of
southern Sherman County.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3622 10204 3616 10165 3605 10173 3606 10209
TIME...MOT...LOC 1419Z 209DEG 43KT 3613 10187
HAIL...1.00IN
WIND...<50MPH
$$
LFM251
WWUS54 KAMA 131425
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
825 AM CST Sat Mar 13 2021
TXC421-131435-
/O.CAN.KAMA.SV.W.0007.000000T0000Z-210313T1445Z/
Sherman TX-
825 AM CST Sat Mar 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN SHERMAN COUNTY IS
CANCELLED...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled. However small hail is still possible with this
thunderstorm.
LAT...LON 3622 10204 3616 10165 3605 10173 3606 10209
TIME...MOT...LOC 1422Z 204DEG 43KT 3620 10183
$$
LFMThe 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, 9:11 PM CST | Severe Thunderstorm Warning | AMA | Carson, Gray, Hutchinson, Potter, Roberts | 79 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, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.