Alert archive / Texas / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 134, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 30, 2021, 7:46 PM CDT for Dallam County, Sherman County, Texas. It was in force for 59 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
- May 30, 2021, 7:46 PM CDT (00:46 UTC)
- Expired
- May 30, 2021, 8:45 PM CDT
- In force
- 59 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.75 in
- Wind
- 60.0 mph
Counties Dallam County, TX, Sherman County, TX
The radar
The Amarillo radar (KAMA), 120 km from the middle of the area, began a volume at 00:46 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 |
|---|---|---|---|
| May 30, 8:13 PM CDT | HAIL 1 | 11 Sse Texhoma, 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 |
|---|---|---|---|
| May 30, 4:42 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Amarillo Airport, TX (KAMA), launched 00:00Z, 0.8 hours before the alert went out and 121 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
- 436 J/kg
- Mixed-layer CIN
- -34 J/kg
- Mixed-layer LCL
- 1025 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 88 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 2.7
The text
As transmitted.
232
WUUS54 KAMA 310046
SVRAMA
TXC111-421-310145-
/O.NEW.KAMA.SV.W.0134.210531T0046Z-210531T0145Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
746 PM CDT Sun May 30 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Central Sherman County in the Panhandle of Texas...
East central Dallam County in the Panhandle of Texas...
* Until 845 PM CDT.
* At 746 PM CDT, a severe thunderstorm was located 5 miles northeast
of Conlen, or 6 miles southwest of Stratford, moving east at 20
mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible.
People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles.
* Locations impacted include...
Stratford and Conlen.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Tornado Watch remains in effect until midnight CDT for the
Panhandle of Oklahoma...and the Panhandle of Texas.
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and continuous cloud to ground
lightning is occurring with this storm. Move indoors immediately.
Lightning is one of nature's leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3617 10223 3636 10226 3650 10172 3624 10163
TIME...MOT...LOC 0046Z 255DEG 16KT 3628 10215
HAIL...1.75IN
WIND...60MPH
$$
DGW2 follow-up statements
191
WWUS54 KAMA 310102
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
802 PM CDT Sun May 30 2021
TXC111-310112-
/O.CAN.KAMA.SV.W.0134.000000T0000Z-210531T0145Z/
Dallam TX-
802 PM CDT Sun May 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL DALLAM COUNTY IS
CANCELLED...
The severe thunderstorm which prompted the warning has moved out of
the warned area. Therefore, the warning has been cancelled.
A Tornado Watch remains in effect until midnight CDT for the
Panhandle of Oklahoma...and the Panhandle of Texas.
LAT...LON 3618 10211 3638 10213 3650 10172 3624 10163
TIME...MOT...LOC 0102Z 255DEG 16KT 3630 10206
$$
TXC421-310145-
/O.CON.KAMA.SV.W.0134.000000T0000Z-210531T0145Z/
Sherman TX-
802 PM CDT Sun May 30 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 845 PM CDT
FOR CENTRAL SHERMAN COUNTY...
At 802 PM CDT, a severe thunderstorm was located over Stratford,
moving east at 20 mph.
HAZARD...Golf ball size hail and 60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Minor damage to roofs, siding, and trees is possible.
People and animals outdoors will be injured. Expect hail
damage to roofs, siding, windows, and vehicles.
Locations impacted include...
Stratford.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
A Tornado Watch remains in effect until midnight CDT for the
Panhandle of Oklahoma...and the Panhandle of Texas.
LAT...LON 3618 10211 3638 10213 3650 10172 3624 10163
TIME...MOT...LOC 0102Z 255DEG 16KT 3630 10206
HAIL...1.75IN
WIND...60MPH
$$
DGW179
WWUS54 KAMA 310136
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
836 PM CDT Sun May 30 2021
TXC421-310146-
/O.EXP.KAMA.SV.W.0134.000000T0000Z-210531T0145Z/
Sherman TX-
836 PM CDT Sun May 30 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SHERMAN COUNTY WILL
EXPIRE AT 845 PM CDT...
The storm which prompted the warning has moved out of the area.
Therefore, the warning will be allowed to expire.
A Tornado Watch remains in effect until midnight CDT for the
Panhandle of Oklahoma...and the Panhandle of Texas.
LAT...LON 3618 10211 3638 10213 3650 10172 3624 10163
TIME...MOT...LOC 0136Z 255DEG 16KT 3634 10189
$$
DGWThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 30, 7:22 PM CDT | Severe Thunderstorm Warning | AMA | Hartley, Moore, Oldham, Potter | 68 min |
| May 30, 7:29 PM CDT | Tornado Warning | AMA | Sherman | 46 min |
| May 30, 8:14 PM CDT | Tornado Warning | AMA | Hansford, Sherman | 46 min |
| May 30, 8:19 PM CDT | Areal Flood Advisory | AMA | Sherman | 4 hr |
| May 30, 8:47 PM CDT | Severe Thunderstorm Warning | AMA | Hansford, Hutchinson, Moore, Ochiltree, Roberts, Sherman | 58 min |
| May 30, 9:19 PM CDT | Special Weather Statement | AMA | Moore, Potter | 41 min |
| May 30, 9:24 PM CDT | Areal Flood Advisory | AMA | Hansford, Sherman | 3 hr |
| May 30, 9:31 PM CDT | Special Weather Statement | AMA | Ochiltree, Roberts | 44 min |
| May 30, 9:54 PM CDT | Special Weather Statement | AMA | Hutchinson, Potter | 36 min |
| May 30, 10:14 PM CDT | Special Weather Statement | AMA | Ochiltree, Roberts | 46 min |
| May 30, 10:27 PM CDT | Areal Flood Advisory | AMA | Potter | 3 hr |
| May 30, 10:27 PM CDT | Severe Thunderstorm Warning | AMA | Armstrong, Carson, Potter, Randall | 63 min |
| May 30, 10:30 PM CDT | Special Weather Statement | AMA | Carson, Hutchinson | 60 min |
| May 30, 10:35 PM CDT | Special Weather Statement | AMA | Gray | 25 min |
| May 30, 10:38 PM CDT | Tornado Warning | AMA | Carson, Gray | 22 min |
| May 30, 10:53 PM CDT | Special Weather Statement | AMA | Hemphill, Lipscomb | 67 min |
| May 30, 10:57 PM CDT | Flash Flood Warning | AMA | Armstrong, Carson, Potter, Randall | 4 hr |
| May 30, 11:32 PM CDT | Special Weather Statement | AMA | Gray | 28 min |
| May 31, 12:03 AM CDT | Special Weather Statement | AMA | Gray | 27 min |
| May 31, 12:04 AM CDT | Areal Flood Advisory | AMA | Carson, Gray, Hemphill, Roberts | 3 hr |
| May 31, 12:28 AM CDT | Special Weather Statement | AMA | Collingsworth | 32 min |
| May 31, 12:29 AM CDT | Areal Flood Advisory | AMA | Armstrong, Carson, Randall | 12 min |
| May 31, 12:41 AM CDT | Flash Flood Warning | AMA | Armstrong, Carson, Randall | 3 hr |
| May 31, 12:47 AM CDT | Severe Thunderstorm Warning | AMA | Collingsworth, Wheeler | 58 min |
| May 31, 1:12 AM CDT | Areal Flood Advisory | AMA | Armstrong, Collingsworth, Donley, Gray, Hemphill, Randall and 1 more | 3 hr |
| May 31, 1:28 AM CDT | Flash Flood Warning | AMA | Donley, Gray | 3 hr |
| May 31, 2:27 AM CDT | Flash Flood Warning | AMA | Collingsworth, Donley | 3 hr |
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.