Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 33, NWS Amarillo, TX
NWS Amarillo, TX issued this severe thunderstorm warning at May 7, 2021, 1:33 PM CDT for Cimarron County, Oklahoma. It was in force for 57 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
- May 7, 2021, 1:33 PM CDT (18:33 UTC)
- Expired
- May 7, 2021, 2:30 PM CDT
- In force
- 57 min
- Issued by
- NWS Amarillo, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cimarron County, OK
The radar
The Amarillo radar (KAMA), 188 km from the middle of the area, began a volume at 18:36 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, 6.6 hours before the alert went out and 189 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
- 1870 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 341 m²/s²
- 0-3 km storm-relative helicity
- 598 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
356
WUUS54 KAMA 071833
SVRAMA
OKC025-071930-
/O.NEW.KAMA.SV.W.0033.210507T1833Z-210507T1930Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
133 PM CDT Fri May 7 2021
The National Weather Service in Amarillo has issued a
* Severe Thunderstorm Warning for...
Central Cimarron County in the Panhandle of Oklahoma...
* Until 230 PM CDT.
* At 133 PM CDT, a severe thunderstorm was located 6 miles northwest
of Boise City, moving east 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...
Boise City and Keyes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3697 10222 3661 10221 3668 10278 3689 10272
TIME...MOT...LOC 1833Z 262DEG 14KT 3682 10256
HAIL...1.00IN
WIND...60MPH
$$
Ward3 follow-up statements
885
WWUS54 KAMA 071841
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
141 PM CDT Fri May 7 2021
OKC025-071930-
/O.CON.KAMA.SV.W.0033.000000T0000Z-210507T1930Z/
Cimarron OK-
141 PM CDT Fri May 7 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT
FOR CENTRAL CIMARRON COUNTY...
At 141 PM CDT, a severe thunderstorm was located 4 miles north of
Boise City, moving east at 15 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Expect some tree damage. Damage is likely to mobile homes,
roofs, and outbuildings. Hail damage to vehicles is
expected.
Locations impacted include...
Boise City and Keyes.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3697 10222 3661 10221 3668 10278 3689 10272
TIME...MOT...LOC 1841Z 276DEG 14KT 3680 10252
HAIL...1.00IN
WIND...70MPH
$$
Ward522 WWUS54 KAMA 071857 SVSAMA Severe Weather Statement National Weather Service Amarillo TX 157 PM CDT Fri May 7 2021 OKC025-071930- /O.CON.KAMA.SV.W.0033.000000T0000Z-210507T1930Z/ Cimarron OK- 157 PM CDT Fri May 7 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR CENTRAL CIMARRON COUNTY... At 157 PM CDT, a severe thunderstorm was located 7 miles northeast of Boise City, moving east 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... Boise City and Keyes. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3697 10222 3661 10221 3668 10278 3689 10272 TIME...MOT...LOC 1857Z 264DEG 17KT 3682 10244 HAIL...0.75IN WIND...60MPH $$ Ward
169
WWUS54 KAMA 071920
SVSAMA
Severe Weather Statement
National Weather Service Amarillo TX
220 PM CDT Fri May 7 2021
OKC025-071930-
/O.EXP.KAMA.SV.W.0033.000000T0000Z-210507T1930Z/
Cimarron OK-
220 PM CDT Fri May 7 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL CIMARRON COUNTY WILL
EXPIRE AT 230 PM CDT...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
LAT...LON 3697 10222 3661 10221 3668 10278 3689 10272
TIME...MOT...LOC 1920Z 262DEG 14KT 3683 10235
$$
WardThe office that day
Everything else NWS Amarillo, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 7, 1:23 PM CDT | Special Weather Statement | AMA | Cimarron | 37 min |
| May 7, 2:22 PM CDT | Special Weather Statement | AMA | Cimarron | 23 min |
| May 7, 2:42 PM CDT | Fire Weather Watch | AMA | Cimarron | 13 hr |
| May 7, 2:47 PM CDT | Special Weather Statement | AMA | Texas | 28 min |
| May 7, 2:50 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 55 min |
| May 7, 3:27 PM CDT | Special Weather Statement | AMA | Cimarron | 63 min |
| May 7, 3:42 PM CDT | Special Weather Statement | AMA | Texas | 33 min |
| May 7, 3:53 PM CDT | Special Weather Statement | AMA | Cimarron | 67 min |
| May 7, 3:58 PM CDT | Severe Thunderstorm Warning | AMA | Texas | 32 min |
| May 7, 4:49 PM CDT | Special Weather Statement | AMA | Beaver | 56 min |
| May 7, 4:55 PM CDT | Severe Thunderstorm Warning | AMA | Beaver | 46 min |
| May 7, 5:43 PM CDT | Special Weather Statement | AMA | Beaver | 32 min |
Nearby
Severe 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.