Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 46, NWS Amarillo, TX

May 14, 2021Cimarron County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at May 14, 2021, 5:50 PM CDT for Cimarron County, Oklahoma. It was in force for 38 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 14, 2021, 5:50 PM CDT (22:50 UTC)
Expired: May 14, 2021, 6:28 PM CDT
In force: 38 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), 194 km from the middle of the area, began a volume at 22:49 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 14, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.8 hours before the alert went out and 195 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: 51 J/kg
Mixed-layer CIN: -519 J/kg
Mixed-layer LCL: 807 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 364 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

591 
WUUS54 KAMA 142250
SVRAMA
OKC025-142345-
/O.NEW.KAMA.SV.W.0046.210514T2250Z-210514T2345Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
550 PM CDT Fri May 14 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northern Cimarron County in the Panhandle of Oklahoma...

* Until 645 PM CDT.

* At 550 PM CDT, a severe thunderstorm was located 11 miles east of
  Black Mesa Park, or 14 miles northwest of Boise City, moving
  southeast 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, Keyes, Kenton, Wheeless and Black Mesa Park. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3699 10216 3666 10214 3668 10300 3700 10300
TIME...MOT...LOC 2250Z 296DEG 15KT 3689 10269 

HAIL...1.00IN
WIND...60MPH
 
$$

Bieda

2 follow-up statements

817 
WWUS54 KAMA 142312
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
612 PM CDT Fri May 14 2021

OKC025-142345-
/O.CON.KAMA.SV.W.0046.000000T0000Z-210514T2345Z/
Cimarron OK-
612 PM CDT Fri May 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHERN CIMARRON COUNTY...

At 612 PM CDT, a severe thunderstorm was located 10 miles south of
Campo, or 16 miles north of Boise City, moving east at 20 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...
Black Mesa Park and Kenton. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3699 10216 3681 10215 3681 10300 3700 10300
TIME...MOT...LOC 2312Z 269DEG 16KT 3696 10253 

HAIL...1.00IN
WIND...60MPH
 
$$

Bieda

956 
WWUS54 KAMA 142328
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
628 PM CDT Fri May 14 2021

OKC025-142337-
/O.CAN.KAMA.SV.W.0046.000000T0000Z-210514T2345Z/
Cimarron OK-
628 PM CDT Fri May 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN CIMARRON COUNTY IS
CANCELLED...
                
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 has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
the Panhandle of Oklahoma.

LAT...LON 3699 10216 3681 10215 3681 10300 3700 10300
TIME...MOT...LOC 2318Z 296DEG 15KT 3693 10246 

$$

Bieda

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 5:48 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	57 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2021 Every 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.