Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 113, NWS Amarillo, TX

May 27, 2017Cimarron County, Oklahoma; Dallam County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 27, 2017, 6:44 PM CDT for Cimarron County, Oklahoma; Dallam County, Texas. It was in force for 46 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 27, 2017, 6:44 PM CDT (23:44 UTC)
Expired: May 27, 2017, 7:30 PM CDT
In force: 46 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Cimarron County, OK, Dallam County, TX

The radar

The Amarillo radar (KAMA), 185 km from the middle of the area, began a volume at 23:47 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 27, 7:14 PM CDT	HAIL 1.25	1 Wsw Felt, 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 27, 5:27 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.7 hours before the alert went out and 186 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 4238 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: -63 m²/s²
0-3 km storm-relative helicity: -21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

053 
WUUS54 KAMA 272344
SVRAMA
OKC025-TXC111-280030-
/O.NEW.KAMA.SV.W.0113.170527T2344Z-170528T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
644 PM CDT SAT MAY 27 2017

The National Weather Service in Amarillo has issued a

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

* Until 730 PM CDT

* At 643 PM CDT, a severe thunderstorm was located 4 miles east of
  Seneca, or 15 miles northeast of Clayton, moving east at 25 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...
  Felt and Wheeless. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10300 3676 10300 3676 10269 3642 10282
TIME...MOT...LOC 2343Z 291DEG 21KT 3664 10305 

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

Bieda

3 follow-up statements

626 
WWUS54 KAMA 272356
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
656 PM CDT SAT MAY 27 2017

OKC025-TXC111-280030-
/O.CON.KAMA.SV.W.0113.000000T0000Z-170528T0030Z/
Cimarron OK-Dallam TX-
656 PM CDT SAT MAY 27 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHWESTERN CIMARRON AND NORTHERN DALLAM COUNTIES...

At 656 PM CDT, a severe thunderstorm was located 8 miles southwest of
Wheeless, or 16 miles northeast of Clayton, moving east at 25 mph.

HAZARD...Ping pong 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...
Felt and Wheeless. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10300 3676 10300 3676 10269 3642 10282
TIME...MOT...LOC 2356Z 291DEG 21KT 3661 10296 

HAIL...1.50IN
WIND...60MPH
 
$$

Bieda

748 
WWUS54 KAMA 280010
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
710 PM CDT SAT MAY 27 2017

OKC025-TXC111-280030-
/O.CON.KAMA.SV.W.0113.000000T0000Z-170528T0030Z/
Cimarron OK-Dallam TX-
710 PM CDT SAT MAY 27 2017

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR SOUTHWESTERN CIMARRON AND NORTHERN DALLAM COUNTIES...

At 710 PM CDT, a severe thunderstorm was located near Felt, or 20
miles east of Clayton, moving southeast at 30 mph.

HAZARD...Ping pong 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...
Felt.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10300 3669 10300 3670 10271 3642 10282
TIME...MOT...LOC 0010Z 294DEG 24KT 3655 10284 

HAIL...1.50IN
WIND...60MPH
 
$$

Bieda

324 
WWUS54 KAMA 280023
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
723 PM CDT SAT MAY 27 2017

OKC025-TXC111-280033-
/O.EXP.KAMA.SV.W.0113.000000T0000Z-170528T0030Z/
Cimarron OK-Dallam TX-
723 PM CDT SAT MAY 27 2017

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN CIMARRON AND
NORTHERN DALLAM COUNTIES WILL EXPIRE AT 730 PM CDT...
        
The storm which prompted the warning has been replaced with another 
severe thunderstorm warning.  Therefore this warning will be allowed 
to expire.  Hail to the size of half dollar size remain possible 
with this storm.

A severe thunderstorm watch remains in effect until 100 AM CDT for 
the Panhandle of Oklahoma...and the Panhandle of Texas.

LAT...LON 3650 10300 3669 10300 3670 10271 3642 10282
TIME...MOT...LOC 0023Z 291DEG 21KT 3653 10278 

$$

Bieda

The office that day

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

Issued	Product	Office	Counties	Lasted
May 27, 4:44 PM CDT	Wind Advisory	AMA	Cimarron	9 hr

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2017 Severe Thunderstorm Warnings in Texas, 2017 Every severe thunderstorm warning in 2017

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.