Alert archive / Oklahoma / Tornado Warnings in 2021

Tornado Warning 29, NWS Amarillo, TX

May 30, 2021Cimarron County, Oklahoma

NWS Amarillo, TX issued this tornado warning at May 30, 2021, 5:39 PM CDT for Cimarron County, Oklahoma. It was in force for 51 min. 4 reports 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, 5:39 PM CDT (22:39 UTC)
Expired: May 30, 2021, 6:30 PM CDT
In force: 51 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Observed
Hail: 2.75 in

County Cimarron County, OK

The radar

The Amarillo radar (KAMA), 180 km from the middle of the area, began a volume at 22:42 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, 5:41 PM CDT	HAIL 1.75	5 Wsw Felt, OK	STORM CHASER REPORTS GOLF BALL SIZE HAIL.
May 30, 6:00 PM CDT	HAIL 1.25	2 Ne Felt, OK
May 30, 6:02 PM CDT	TORNADO	4 Ne Felt, OK	MULTIPLE REPORTS OF TWIN TORNADOES, STARTING AT 6:02 PM, CONTINUES AS OF REPORT.
May 30, 6:27 PM CDT	HAIL 1.25	7 Ssw Boise City, OK

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 12:00Z, 10.7 hours before the alert went out and 180 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.

096 
WFUS54 KAMA 302239
TORAMA
OKC025-302330-
/O.NEW.KAMA.TO.W.0029.210530T2239Z-210530T2330Z/

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

The National Weather Service in Amarillo has issued a

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

* Until 630 PM CDT.

* At 538 PM CDT, a confirmed tornado was located over Felt, or 20
  miles southwest of Boise City, moving northeast at 20 mph.

  HAZARD...Damaging Tornado and baseball size hail.

  SOURCE...Live storm chaser video confirmed tornado.

  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...
  Felt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3678 10267 3660 10247 3650 10277 3650 10290
      3654 10295
TIME...MOT...LOC 2238Z 236DEG 17KT 3657 10282 

TORNADO...OBSERVED
HAIL...2.75IN

$$

DGW

1 follow-up statement

608 
WWUS54 KAMA 302301
SVSAMA

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

OKC025-302330-
/O.CON.KAMA.TO.W.0029.000000T0000Z-210530T2330Z/
Cimarron OK-
601 PM CDT Sun May 30 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 630 PM CDT FOR
SOUTHWESTERN CIMARRON COUNTY...
    
At 600 PM CDT, a confirmed tornado was located 5 miles northeast of
Felt, or 12 miles southwest of Boise City, moving northeast at 20
mph.

HAZARD...Damaging tornado and golf ball size hail.

SOURCE...Weather spotters confirmed tornado.

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...
Felt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3678 10267 3660 10247 3650 10277 3655 10283
      3661 10284
TIME...MOT...LOC 2300Z 236DEG 17KT 3663 10271 

TORNADO...OBSERVED
HAIL...1.75IN

$$

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, 5:49 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
May 30, 6:58 PM CDT	Tornado Warning	AMA	Cimarron	47 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.