Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 218, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at Jul 18, 2021, 4:23 PM CDT for Hansford County, Ochiltree County, Texas; Beaver County, Texas County, Oklahoma. It was in force for 67 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
- Jul 18, 2021, 4:23 PM CDT (21:23 UTC)
- Expired
- Jul 18, 2021, 5:30 PM CDT
- In force
- 67 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Beaver County, OK, Texas County, OK, Hansford County, TX, Ochiltree County, TX
The radar
The Amarillo radar (KAMA), 161 km from the middle of the area, began a volume at 21:25 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, 9.4 hours before the alert went out and 161 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1725 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -34 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
453
WUUS54 KAMA 182123
SVRAMA
OKC007-139-TXC195-357-182230-
/O.NEW.KAMA.SV.W.0218.210718T2123Z-210718T2230Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
423 PM CDT Sun Jul 18 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Southwestern Beaver County in the Panhandle of Oklahoma...
Southeastern Texas County in the Panhandle of Oklahoma...
Northeastern Hansford County in the Panhandle of Texas...
Northern Ochiltree County in the Panhandle of Texas...
* Until 530 PM CDT.
* At 423 PM CDT, a severe thunderstorm was located over Bryans
Corner, or 18 miles north of Perryton, moving southwest at 5 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, Hardesty, Bryans Corner, Balko, Adams 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 3679 10107 3660 10056 3621 10066 3635 10114
3660 10146
TIME...MOT...LOC 2123Z 025DEG 6KT 3665 10082
HAIL...1.00IN
WIND...60MPH
$$
Ward3 follow-up statements
142
WWUS54 KAMA 182142
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
442 PM CDT Sun Jul 18 2021
OKC007-139-TXC195-357-182230-
/O.CON.KAMA.SV.W.0218.000000T0000Z-210718T2230Z/
Beaver OK-Texas OK-Hansford TX-Ochiltree TX-
442 PM CDT Sun Jul 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR SOUTHWESTERN BEAVER...SOUTHEASTERN TEXAS...NORTHEASTERN HANSFORD
AND NORTHERN OCHILTREE COUNTIES...
At 442 PM CDT, severe thunderstorms were located along a line
extending from 8 miles south of Balko to 9 miles northwest of
Perryton to 7 miles south of Hardesty, moving south at 10 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible.
Locations impacted include...
Perryton, Hardesty and Farnsworth.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3673 10120 3660 10087 3661 10060 3660 10056
3621 10066 3635 10114 3660 10146
TIME...MOT...LOC 2142Z 356DEG 8KT 3650 10070 3647 10096 3651 10119
HAIL...0.75IN
WIND...60MPH
$$
Ward765
WWUS54 KAMA 182203
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
503 PM CDT Sun Jul 18 2021
OKC007-182213-
/O.CAN.KAMA.SV.W.0218.000000T0000Z-210718T2230Z/
Beaver OK-
503 PM CDT Sun Jul 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN BEAVER COUNTY IS
CANCELLED...
The storms which prompted the warning have moved out of the warned
area. Therefore, the warning has been cancelled.
LAT...LON 3653 10095 3650 10095 3650 10076 3648 10059
3621 10066 3635 10114 3654 10139 3660 10131
TIME...MOT...LOC 2203Z 359DEG 16KT 3642 10070 3639 10096 3643 10119
$$
OKC139-TXC195-357-182230-
/O.CON.KAMA.SV.W.0218.000000T0000Z-210718T2230Z/
Texas OK-Hansford TX-Ochiltree TX-
503 PM CDT Sun Jul 18 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR SOUTHEASTERN TEXAS...NORTHEASTERN HANSFORD AND NORTHERN OCHILTREE
COUNTIES...
At 503 PM CDT, severe thunderstorms were located along a line
extending from 6 miles east of Perryton to 4 miles north of
Farnsworth to 12 miles northwest of Waka, moving south at 20 mph.
HAZARD...60 mph wind gusts and penny size hail.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible.
Locations impacted include...
Perryton and Farnsworth.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3653 10095 3650 10095 3650 10076 3648 10059
3621 10066 3635 10114 3654 10139 3660 10131
TIME...MOT...LOC 2203Z 359DEG 16KT 3642 10070 3639 10096 3643 10119
HAIL...0.75IN
WIND...60MPH
$$
Ward695
WWUS54 KAMA 182221
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
521 PM CDT Sun Jul 18 2021
OKC139-TXC195-357-182231-
/O.EXP.KAMA.SV.W.0218.000000T0000Z-210718T2230Z/
Texas OK-Hansford TX-Ochiltree TX-
521 PM CDT Sun Jul 18 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN TEXAS...
NORTHEASTERN HANSFORD AND NORTHERN OCHILTREE COUNTIES WILL EXPIRE AT
530 PM CDT...
The storms which prompted the warning have weakened below severe
limits, and have exited the warned area. Therefore, the warning will
be allowed to expire. However small hail, gusty winds and heavy rain
are still possible with these thunderstorms.
A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
the Panhandle of Oklahoma...and the Panhandle of Texas.
LAT...LON 3653 10095 3650 10095 3650 10076 3648 10059
3621 10066 3635 10114 3654 10139 3660 10131
TIME...MOT...LOC 2221Z 025DEG 6KT 3640 10071 3637 10097 3641 10120
$$
WardThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 17, 7:04 PM CDT | Severe Thunderstorm Warning | AMA | Potter, Randall | 71 min |
| Jul 17, 7:13 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Randall | 62 min |
| Jul 17, 7:25 PM CDT | Special Weather Statement | AMA | Randall | 35 min |
| Jul 17, 7:40 PM CDT | Flash Flood Warning | AMA | Potter, Randall | 99 min |
| Jul 17, 7:51 PM CDT | Severe Thunderstorm Warning | AMA | Deaf Smith, Randall | 54 min |
| Jul 17, 8:17 PM CDT | Areal Flood Advisory | AMA | Deaf Smith, Randall | 3 hr |
| Jul 17, 8:47 PM CDT | Special Weather Statement | AMA | Deaf Smith | 43 min |
| Jul 18, 3:26 AM CDT | Areal Flood Advisory | AMA | Hemphill, Lipscomb | 3 hr |
| Jul 18, 4:47 PM CDT | Special Weather Statement | AMA | Lipscomb | 28 min |
| Jul 18, 5:19 PM CDT | Special Weather Statement | AMA | Lipscomb, Ochiltree | 56 min |
| Jul 18, 5:59 PM CDT | Special Weather Statement | AMA | Hutchinson | 31 min |
| Jul 18, 6:07 PM CDT | Special Weather Statement | AMA | Hemphill, Roberts | 53 min |
| Jul 18, 6:45 PM CDT | Special Weather Statement | AMA | Carson | 45 min |
| Jul 18, 6:55 PM CDT | Special Weather Statement | AMA | Gray, Wheeler | 65 min |
| Jul 18, 3:26 PM CDT | Special Weather Statement | AMA | Beaver | 34 min |
| Jul 18, 3:47 PM CDT | Severe Thunderstorm Warning | AMA | Beaver, Texas | 58 min |
| Jul 18, 5:55 PM CDT | Special Weather Statement | AMA | Cimarron | 35 min |
| Jul 18, 5:56 PM CDT | Special Weather Statement | AMA | Cimarron | 34 min |
| Jul 18, 6:29 PM CDT | Special Weather Statement | AMA | Cimarron | 46 min |
| Jul 18, 6:35 PM CDT | Areal Flood Advisory | AMA | Cimarron | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2021Severe Thunderstorm Warnings in Oklahoma, 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.