Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 35, NWS Amarillo, TX

May 30, 2021Cimarron County, Oklahoma

NWS Amarillo, TX issued this tornado warning at May 30, 2021, 6:58 PM CDT for Cimarron County, Oklahoma. It was in force for 47 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 30, 2021, 6:58 PM CDT (23:58 UTC)
Expired: May 30, 2021, 7:45 PM CDT
In force: 47 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Cimarron County, OK

The radar

The Amarillo radar (KAMA), 171 km from the middle of the area, began a volume at 00:03 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 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 12:00Z, 12.0 hours before the alert went out and 172 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 64 J/kg
Mixed-layer CIN: -307 J/kg
Mixed-layer LCL: 1320 m above ground
0-6 km bulk shear: 39 kt
0-1 km storm-relative helicity: 51 m²/s²
0-3 km storm-relative helicity: 188 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

910 
WFUS54 KAMA 302358
TORAMA
OKC025-310045-
/O.NEW.KAMA.TO.W.0035.210530T2358Z-210531T0045Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Amarillo TX
658 PM CDT Sun May 30 2021

The National Weather Service in Amarillo has issued a

* Tornado Warning for...
  Eastern Cimarron County in the Panhandle of Oklahoma...

* Until 745 PM CDT.
    
* At 658 PM CDT, a severe thunderstorm capable of producing a tornado
  was located 8 miles southwest of Keyes, or 8 miles east of Boise
  City, moving northeast at 15 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Keyes and Griggs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3651 10250 3678 10248 3693 10228 3692 10209
      3650 10206
TIME...MOT...LOC 2358Z 215DEG 19KT 3672 10235 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DGW

4 follow-up statements

717 
WWUS54 KAMA 310005
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
705 PM CDT Sun May 30 2021

OKC025-310045-
/O.CON.KAMA.TO.W.0035.000000T0000Z-210531T0045Z/
Cimarron OK-
705 PM CDT Sun May 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
CIMARRON COUNTY...
    
At 703 PM CDT, a severe thunderstorm capable of producing a tornado
was located 5 miles southwest of Keyes, or 10 miles east of Boise
City, moving northeast at 20 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation. Two separate rotations with this 
         storms. One is about 6 miles southwest of Keys and moving 
         northeast, and the other is about 18 miles west of Griggs 
         moving east. 

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Keyes and Griggs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3651 10250 3678 10248 3693 10228 3692 10209
      3650 10206
TIME...MOT...LOC 0003Z 215DEG 19KT 3675 10233 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DGW

297 
WWUS54 KAMA 310018
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
718 PM CDT Sun May 30 2021

OKC025-310045-
/O.CON.KAMA.TO.W.0035.000000T0000Z-210531T0045Z/
Cimarron OK-
718 PM CDT Sun May 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
CIMARRON COUNTY...
    
At 715 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Keyes, or 13 miles east of Boise City, moving
northeast at 20 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Keyes and Griggs. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3651 10245 3678 10244 3693 10228 3692 10209
      3650 10206
TIME...MOT...LOC 0015Z 215DEG 19KT 3680 10228 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DGW

696 
WWUS54 KAMA 310024
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
724 PM CDT Sun May 30 2021

OKC025-310045-
/O.CON.KAMA.TO.W.0035.000000T0000Z-210531T0045Z/
Cimarron OK-
724 PM CDT Sun May 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 745 PM CDT FOR EASTERN
CIMARRON COUNTY...
    
At 723 PM CDT, a severe thunderstorm capable of producing a tornado
was located over Keyes, or 16 miles northeast of Boise City, moving
northeast at 20 mph.

HAZARD...Tornado and quarter size hail.

SOURCE...Radar indicated rotation.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be damaged or destroyed. Damage 
         to roofs, windows, and vehicles will occur.  Tree damage is 
         likely.

Locations impacted include...
Keyes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3657 10242 3678 10244 3693 10228 3692 10209
      3664 10207
TIME...MOT...LOC 0023Z 215DEG 19KT 3684 10225 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

DGW

314 
WWUS54 KAMA 310040
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
740 PM CDT Sun May 30 2021

OKC025-310050-
/O.EXP.KAMA.TO.W.0035.000000T0000Z-210531T0045Z/
Cimarron OK-
740 PM CDT Sun May 30 2021

...THE TORNADO WARNING FOR EASTERN CIMARRON COUNTY WILL EXPIRE AT 745
PM CDT...
    
The tornadic thunderstorm which prompted the warning has weakened. 
Therefore, the warning will be allowed to expire.  However heavy 
rain is still possible with this thunderstorm.

A Tornado Watch remains in effect until midnight CDT for the
Panhandle of Oklahoma.

LAT...LON 3657 10242 3678 10244 3693 10228 3692 10209
      3664 10207
TIME...MOT...LOC 0040Z 215DEG 19KT 3691 10219 

$$

DGW

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 29, 7:45 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	AMA	Cimarron	45 min
May 29, 8:27 PM CDT	Tornado Warning	AMA	Cimarron	48 min
May 29, 9:05 PM CDT	Tornado Warning Tornado observed	AMA	Cimarron	55 min
May 29, 9:51 PM CDT	Tornado Warning Tornado observedConsiderable damage threat	AMA	Cimarron	54 min
May 29, 10:41 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	64 min
May 29, 11:48 PM CDT	Special Weather Statement	AMA	Cimarron	27 min
May 30, 12:04 AM CDT	Special Weather Statement	AMA	Cimarron	56 min
May 30, 1:03 PM CDT	Special Weather Statement	AMA	Beaver	42 min
May 30, 1:19 PM CDT	Severe Thunderstorm Warning	AMA	Beaver	26 min
May 30, 2:27 PM CDT	Flood Watch	AMA	Beaver, Cimarron, Texas	17 hr
May 30, 3:35 PM CDT	Special Weather Statement	AMA	Cimarron	25 min
May 30, 4:35 PM CDT	Tornado Warning Tornado observed	AMA	Cimarron	40 min
May 30, 5:08 PM CDT	Tornado Warning Tornado observed	AMA	Cimarron	28 min
May 30, 5:14 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	61 min
May 30, 5:35 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	55 min
May 30, 5:39 PM CDT	Tornado Warning Tornado observed	AMA	Cimarron	51 min
May 30, 5:49 PM CDT	Tornado Warning	AMA	Cimarron	41 min
May 30, 6:14 PM CDT	Tornado Warning Tornado observed	AMA	Cimarron	46 min
May 30, 6:26 PM CDT	Tornado Warning	AMA	Cimarron	21 min
May 30, 6:46 PM CDT	Areal Flood Advisory	AMA	Cimarron	4 hr
May 30, 6:54 PM CDT	Tornado Warning	AMA	Cimarron	51 min

Nearby

Tornado Warnings in Oklahoma, 2021 Every tornado warning in 2021 Tornadoes 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.